''Trochus'' is a genus of medium-sized to large, top-shaped

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

s with an operculum and a pearly inside to their shells,

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...

s in the subfamily Trochinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. (2010). Trochus Linnaeus, 1758. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138598 on 5 December 2012 When the word "trochus" or "Trochus" is used in reference to fishing sea snails for commercial purposes, the usual species targeted is '' Tectus niloticus'', which is valued for its

nacre Nacre ( , ), also known as mother of pearl, is an organicinorganic composite material produced by some molluscs as an inner shell layer; it is also the material of which pearls are composed. It is strong, resilient, and iridescent. Nacre is f ...

or mother of pearl layer, which was traditionally made into items such as pearl buttons and jewelry. ''Tectus niloticus'' is no longer classified as a ''Trochus'' species, and it is no longer classified in the family Trochidae; it is now placed in the family Tegulidae.

History

The name ''Trochus'', according to P. FischerP. Fischer. Monog. Genre Troque, in Kiener's Coquilles Vivantes, Paris, 1880. was used for the first time by Guillaume Rondelet, in 1558, who assembled under this title a rather miscellaneous assortment of univalves. Linnaeus' genus ''Trochus'' is composed principally of true Trochidae, but it is now viewed as having contained species of several other very different families. Lamarck still further restricted the group, by eliminating several genera; and in the 19th century the labors of Gray, H. Adams and A. Adams and others, contributed towards a more systematic arrangement of the family.Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
/ref> Further revisions have narrowed down the number of species in this genus, and most names have become synonyms.

Shell description

Sea snails in the genus ''Trochus'' have large, thick, solid shells that have a broadly conical spire and a flat base. The periphery is angulated. The base of the shell is flat or convex. The outer and basal lips are smooth within. The columella has a strong fold above, ending in an obtuse tooth below. The interior of the shell is pearly and

iridescent Iridescence (also known as goniochromism) is the phenomenon of certain surfaces that appear to gradually change color as the angle of view or the angle of illumination changes. Examples of iridescence include soap bubbles, feathers, butterfl ...

because of a thick layer of

(mother of pearl).

Species

Species within the genus ''Trochus'' include: * † '' Trochus antipodum'' Wilckens, 1922 * '' Trochus calcaratus'' Souverbie in Souverbie & Montrouzier, 1875 * '' Trochus californicus'' (A. Adams, 1853) * '' Trochus camelophorus'' Webster, 1906 * '' Trochus cariniferus'' Reeve, 1842 * '' Trochus chloromphalus'' (A. Adams, 1851) * '' Trochus concinnus'' Philippi, 1846 * '' Trochus cumingii'' A. Adams, 1853 * ''

Trochus elegantulus ''Trochus'' is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the subfamily Trochinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. ...

'' W. Wood, 1828 * ''

Trochus erithreus ''Trochus erithreus'' is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.Bouchet, P.; Rosenberg, G.; Gofas, S. (2014). Trochus erithreus Brocchi, 1821. Accessed through: World Register of Marine S ...

'' Brocchi, 1821 * ''

Trochus fastigiatus ''Trochus'' is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the subfamily Trochinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. ...

'' A. Adams, 1853 * ''

Trochus ferreirai ''Trochus ferreirai'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class compri ...

'' Bozzetti, 1996 * ''

Trochus firmus ''Trochus firmus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2014). Trochus firmus Philippi, 1849. Accessed through: World Register of Marine Species at http://www.marinespecies.org ...

'' Philippi, 1849 * ''

Trochus flammulatus ''Trochus flammulatus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The height of the shell attains 40 mm, its diameter 38 mm. The general form of this species is similar ...

'' Lamarck, 1822 * ''

Trochus fultoni ''Trochus fultoni'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2014). Trochus fultoni Melvill, 1898. Accessed through: World Register of Marine Species at http://www.marinespecie ...

'' Melvill, 1898 * '' Trochus histrio'' Reeve, 1848 * '' Trochus intextus'' Kiener, 1850 * '' Trochus kochii'' Philippi, 1844 * '' Trochus kotschyi'' Philippi, 1849 * ''

Trochus laciniatus ''Trochus'' is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the subfamily Trochinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. ...

'' Reeve, 1861 * '' Trochus maculatus'' Linnaeus,

1758 Events January–March * January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of Systema Naturae, 10th edition of ''Systema Naturae'', the sta ...

* ''

Trochus nigropunctatus ''Trochus nigropunctatus'', common name the black-spotted topshell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The shell is rather largely, excavately umbilicated, and shortly coni ...

'' Reeve, 1861 * ''

Trochus noduliferus ''Trochus noduliferus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The height of the shell attains 70 mm, its diameter 75 mm. The large, ponderous, solid, imperforate she ...

'' Lamarck, 1822 * ''

Trochus obesus ''Trochus'' is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the subfamily Trochinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. (20 ...

'' Reeve, 1861 * ''

Trochus ochroleucus ''Trochus ochroleucus'', common name the yellow-mouth top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of an adult shell varies between 15 mm and 35 mm. The ...

'' Gmelin, 1791 * '' Trochus radiatus'' Gmelin, 1791 * ''

Trochus rota ''Trochus'' is a genus of medium-sized to large, top-shaped sea snails with an operculum (gastropod), operculum and a pearly inside to their shells, Marine (ocean), marine gastropod molluscs in the subfamily Trochinae of the family (biology), fam ...

'' Dunker, 1860 * ''

Trochus sacellum ''Trochus'' is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the subfamily Trochinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. ...

'' Philippi, 1855 * ''

Trochus squarrosus ''Trochus squarrosus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The height of an adult shell attains 35 mm, its diameter 40 mm. The thick, umbilicate shell has a conic- ...

'' Lamarck, 1822 * ''

Trochus stellatus ''Trochus stellatus'', common name the stellate trochus, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

'' Gmelin, 1791 * † ''

Trochus subanceps ''Trochus'' is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the subfamily Trochinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. ...

'' Sinzow, 1897 * ''

Trochus subincarnatus ''Trochus subincarnatus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The height of the shell attains 32 mm, its diameter 39 mm. This species is allied to ''Trochus ma ...

'' P. Fisher, 1879 * ''

Trochus submorum ''Trochus'' is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the subfamily Trochinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. ...

'' (Abrard, 1942) * '' Trochus tentorium'' Gmelin, 1791 * ''

Trochus tubiferus ''Trochus tubiferus'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Trochidae, the top snails.Rosenberg, G. (2014). Trochus tubiferus Kiener, 1850. Accessed through: World Register of Marine Species at htt ...

'' Kiener, 1850 * ''

Trochus venetus ''Trochus'' is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the subfamily Trochinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. (20 ...

'' Reeve, 1862 * ''

Trochus zhangi ''Trochus zhangi'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprise ...

'' Dong, 2002

Synonyms

* ''Trochus abanteus'' Nardo, 1847: synonym of '' Jujubinus montagui'' (Wood, 1828) * ''Trochus abrodiaetus'' Nardo, 1847: synonym of '' Gibbula adriatica'' (Philippi, 1844) * ''Trochus abyssorum'' E.A. Smith, 1891: synonym of ''

Bathybembix abyssorum ''Bathybembix abyssorum'' is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae.Bouchet, P. (2012). ''Bathybembix abyssorum'' (E.A. Smith, 1891). Retrieved through: World Register of Marine Species The World Register ...

'' (E. A. Smith, 1891) * ''Trochus acinosus'' Gould, 1849: synonym of ''

Coelotrochus viridis ''Coelotrochus viridis'', common name the green top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Rosenberg, G. (2012). ''Coelotrochus viridis'' (Gmelin, 1791). Accessed through: World Regis ...

'' (Gmelin, 1791) * ''Trochus acuminatus'' Wood, 1828: synonym of ''

Bembicium nanum ''Bembicium nanum'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Littorinidae, the winkles or periwinkles. References

Littorinidae Gastropods described in 1822 {{Littorinidae-stub ...

'' (Lamarck, 1822) * ''Trochus acuminatus'' Perry, 1811: synonym of ''

Cantharidus opalus ''Cantharidus opalus'', common name the opal top shell or in the Māori language matangongore, is a species of large sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.Rosenberg, G. (2012). Cantharidus opalus (Martyn, 1 ...

'' (Martyn, 1784) * ''Trochus acutangulus'' Philippi : synonym of '' Trochus maculatus'' Linnaeus,

* ''Trochus adansoni'' ic synonym of ''

Gibbula adansonii ''Steromphala adansonii'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Trochidae, the top snails.MolluscaBase eds. (2020). MolluscaBase. Steromphala adansonii (Payraudeau, 1826). Accessed through: World R ...

'' (Payraudeau, 1826) * ''Trochus adansonii'' Payraudeau, 1826: synonym of ''

'' (Payraudeau, 1826) * ''Trochus adriaticus'' Philippi, 1844: synonym of '' Gibbula adriatica'' (Philippi, 1844) * ''Trochus adspersus'' Philippi, 1851: synonym of ''

Calliostoma adspersum ''Calliostoma adspersum'', common name the spotted Brazilian top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.Rosenberg, G. (2012). ''Calliostoma adspersum'' (Philippi, 1851). Accessed through: ...

'' (Philippi, 1851) * ''Trochus aeglees'' Watson, 1879: synonym of ''

Calliotropis aeglees ''Calliotropis aeglees'' is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae. Description The shell grows to a length of 7.6 mm. The high shell has a broadly conical shape. The color of the shell is pure white w ...

'' (Watson, 1879) * ''Trochus aegyptius'' Gmelin, 1791: synonym of ''

Rubritrochus declivis ''Rubritrochus declivis'', the sloping gibbula, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The shell grows to a length of 24 mm. The umbilicate, conical shell is solid. It ...

'' (Forskål, 1775) * ''Trochus agathensis'' Récluz, 1843: synonym of '' Gibbula umbilicalis'' ( da Costa, 1778) * ''Trochus agrestis'' Philippi, 1843: synonym of '' Calliostoma zizyphinum'' ( Linnaeus,

) * ''Trochus alabastrum'' Reeve, 1858: synonym of ''

Euchelus alabastrum ''Euchelus'' is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae (formerly in the family Trochidae). Description The umbilicate or imperforate shell has a globose-turbinate shape. It is umbilicate or imperforate. ...

'' (Reeve, 1858) * ''Trochus alabastrum'' Lovén, 1846: synonym of '' Calliostoma occidentale'' (Mighels & C. B. Adams, 1842) * ''Trochus albidus'' Wood W., 1828: synonym of '' Calliostoma zizyphinum'' ( Linnaeus,

) * ''Trochus albidus'' Gmelin, 1791: synonym of '' Gibbula albida'' (Gmelin, 1791) * ''Trochus altus'' Reeve (non Philippi), 1862: synonym of '' Trochus maculatus'' Linnaeus,

* ''Trochus alveolatus'' Philippi, 1851: synonym of ''

Gibbula spratti ''Steromphala spratti'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.MolluscaBase eds. (2020). MolluscaBase. Steromphala spratti (Forbes, 1844). Accessed through: World Register of Marine Species ...

'' (Forbes, 1844) * ''Trochus amabilis'' Jeffreys, 1865: synonym of ''

Solariella amabilis ''Solariella amabilis'' is a species of sea snail, a marine gastropod mollusk in the family Solariellidae. Description (Original description by Jeffreys) The height of the shell attains 8 mm, its diameter 7 mm. The pure pearl-white, p ...

'' (Jeffreys, 1865) * ''Trochus americanus'' Gmelin, 1791: synonym of '' Lithopoma americanum'' (Gmelin, 1791) * ''Trochus angulatus'' Tokunaga, 1906: synonym of ''

Conotalopia ornata ''Conotalopia ornata'' is a species of very small sea snail, a marine gastropod mollusk or micromollusk A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, app ...

(''G. B. Sowerby III, 1903) * ''Trochus anomala'' d'Orbigny, 1842: synonym of ''

Vitrinella anomala ''Vitrinella'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Vitrinellidae.Rosenberg, G.; Bouchet, P. (2015). Vitrinella. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at ...

'' (d'Orbigny, 1842) * ''Trochus ardens'' Salis Marschlins, 1793: synonym of ''

Gibbula ardens ''Gibbula ardens'' is a species of small sea snail, known as top snails or top shells, marine gastropod molluscs in the family Trochidae, the top snails.Gofas, S. (2013). Gibbula ardens (Salis Marschlins, 1793). Accessed through: World Register o ...

'' (Salis Marschlins, 1793) * ''Trochus areola'' Gmelin, 1791: synonym of ''

Heliacus (Heliacus) areola areola ''Heliacus'' is a genus of gastropods belonging to the family Architectonicidae. The genus has cosmopolitan distribution. Species: *'' Heliacus anaglyptus'' *''Heliacus areola'' *''Heliacus asteleformis'' *''Heliacus bisulcatus'' *''Helia ...

'' (Gmelin, 1791): synonym of '' Heliacus areola'' (Gmelin, 1791) * ''Trochus argenteonitens'' Lischke, 1872: synonym of ''

Ginebis argenteonitens ''Ginebis argenteonitens'' is a species of deep-water sea snail, a marine gastropod mollusk in the family Eucyclidae. Description The size of the shell varies between 37 mm and 60 mm. The thin, imperforate, yellowish shell has a cono ...

'' (Lischke, 1872) * ''Trochus armillatus'' Wood, 1828: synonym of ''

Astele armillata ''Astele armillata'' is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.Rosenberg, G. (2012). ''Astele armillata'' (Wood, 1828). Accessed through: World Register of Marine Species at http://www.marinespecies.org ...

'' (Wood, 1828) * ''Trochus articulatus'' (Lamarck, 1822): synonym of '' Phorcus articulatus'' (Lamarck, 1822) * ''Trochus asper'' Gmelin, 1791: synonym of ''

Euchelus asper ''Euchelus asper'' is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae.Bouchet, P. (2012). ''Euchelus asper'' (Gmelin, 1791). Retrieved through: World Register of Marine Species at http://www.marinespecies.org/a ...

'' (Gmelin, 1791) * ''Trochus asteriscus'' Reeve, 1843: synonym of ''

Astralium asteriscum ''Astralium asteriscum'' is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.Bouchet, P. (2012). ''Astralium asteriscum'' (Reeve, 1843). Accessed through: World Register of Marine Species at htt ...

'' (Reeve, 1843) * ''Trochus atratus'' Wood, 1828: synonym of ''

Osilinus atratus ''Phorcus atratus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The height of the shell varies between 17 mm and 24 mm, its diameter between 16 mm and 19 mm. The ...

'' (Wood, 1828) * ''Trochus attenuatus'' Jonas, 1844: synonym of ''

Tosatrochus attenuatus ''Tosatrochus attenuatus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.MolluscaBase eds. (2022). MolluscaBase. Tosatrochus attenuatus (Jonas, 1844). Accessed through: World Register of Marine ...

'' (Jonas, 1844) * ''Trochus auratus'' Quoy & Gaimard, 1834: synonym of '' Bembicium auratum'' (Quoy & Gaimard, 1834) * ''Trochus aureus'' Jonas, 1844: synonym of ''

Bellastraea aurea ''Bellastraea aurea'', common name the golden small star, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Description The height of the shell varies between 10 mm and 14 mm, its diam ...

'' (Jonas, 1844) * ''Trochus baccatus'' G.B. Sowerby, 1889: synonym of '' Infundibulops cariniferus'' (Reeve, 1842) * ''Trochus basteroti'' Hoernes, 1848: synonym of '' Gibbula adriatica'' (Philippi, 1844) * ''Trochus baudoni'' Monterosato, 1891: synonym of ''

Jujubinus baudoni ''Jujubinus baudoni'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 3.5 mm and 8 mm. Distribution This species occurs in the Mediterra ...

'' (Monterosato, 1891) * ''Trochus belcheri'' Philippi, 1849: synonym of '' Monilea belcheri'' (Philippi, 1849) * ''Trochus bellardii'' Issel, 1869: synonym of ''

Ethalia bellardii ''Ethalia bellardii'' is a species of sea snail with a top-shaped shell, a marine gastropod mollusk in the family Trochidae, the top snails. Description The minute, thin shell has a height of only 2 mm. Its shape is orbicular-depressed, ob ...

'' (Issel, 1869) * ''Trochus biasoletti'' Philippi, 1836: synonym of '' Gibbula albida'' (Gmelin, 1791) * ''Trochus bicanaliculatus'' Dunker in Philippi, 1844: synonym of '' Diloma bicanaliculata'' (Dunker in Philippi, 1844) * ''Trochus bicarinatus'' Gray J.E., 1834: synonym of ''

Gibbula magus ''Gibbula magus'', common name the great top shell, is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.Gofas, S. (2013). Gibbula magus (Linnaeus, 1758). Accessed through: World Register of Marine ...

'' ( Linnaeus,

) * ''Trochus bicolor'' Perry, G., 1811: synonym of '' Trochus radiatus'' Gmelin, 1791 * ''Trochus bicolor'' Risso, 1826: synonym of ''

Jujubinus exasperatus ''Jujubinus exasperatus'', the Rough Top Shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description ''Jujubinus exasperatus'' has a shell which can reach an adult size of . The shape of th ...

'' (Pennant, 1777) * ''Trochus bilabiatus'' Philippi, 1846: synonym of '' Danilia tinei'' (Calcara, 1839) * ''Trochus bornii'' Cantraine, 1835: synonym of '' Gibbula albida'' (Gmelin, 1791) * ''Trochus brevispina'' Lamarck, 1822: synonym of '' Lithopoma brevispina'' (Lamarck, 1822) * ''Trochus broderipi'' Philippi, 1855: synonym of '' Astele rubiginosa'' (Valenciennes, 1846) * ''Trochus brunneus'' Philippi, 1849: synonym of ''

Tegula brunnea ''Tegula brunnea'', common name the brown turban snail, is a species of medium-sized sea snail, a marine gastropod mollusk in the family Tegulidae, .Bouchet, P.; Rosenberg, G. (2013). Tegula brunnea (Philippi, 1849). Accessed through: World Re ...

'' (Philippi, 1849) * ''Trochus caelatus'' Gmelin, 1791: synonym of '' Lithopoma caelatum'' (Gmelin, 1791) * ''Trochus calcaratus'' Souverbie in Souverbie & Montrouzier, 1875: synonym of ''

Infundibulum calcaratum ''Trochus calcaratus'', common name the actor top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Gofas, S.; Rosenberg, G. (2014). Trochus calcaratus Souverbie in Souverbie & Montrouzier, 1 ...

'' (Souverbie in Souverbie & Montrouzier, 1874) * ''Trochus callicoccus'' Philippi, 1849: synonym of '' Trochus maculatus'' Linnaeus,

* ''Trochus calliferus'' Lamarck, 1822: synonym of ''

Monilea callifera ''Monilea callifera'', common name shrewd trochid, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. The Australian Faunal Directory recognizes '' Monilea lentiginosa'' Adams, 1853 as a synonym of ...

'' (Lamarck, 1822) * ''Trochus callosus'' Koch in Philippi, 1844: synonym of ''

Ethalia sanguinea ''Ethalia sanguinea'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top-snails.Bouchet, P. (2014). Ethalia sanguinea Pilsbry, 1905. Accessed through: World Register of Marine Species at http://www.marinespecie ...

'' Pilsbry, 1905 * ''Trochus calyptraeformis'' Lamarck, 1822: synonym of ''

Sigapatella calyptraeformis ''Sigapatella'' is a genus of small to medium-sized sea snails, marine gastropod molluscs in the family Calyptraeidae, the slipper snails, Chinese hat snails, and cup-and-saucer snails.WoRMS (2010). Sigapatella Lesson, 1831. Accessed through: Wo ...

'' (Lamarck, 1822) * ''Trochus canaliculatus'' Lamarck, 1818: synonym of ''

Euchelus atratus ''Euchelus atratus'', common name the blackish margarite, is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae. Description The size of the shell varies between 5 mm and 21 mm. The solid, umbilicate shel ...

'' (Gmelin, 1791) * ''Trochus cancellatus'' Jeffreys, 1883: synonym of ''

Vetulonia paucivaricosa ''Vetulonia paucivaricosa'' is a species of sea snail, a marine gastropod mollusk in the superfamily Seguenzioidea. Description The shell grows to a height of 3.8 mm. (Described as ''Trochus cancellatus'') The rather thin shell forms a de ...

'' (Dautzenberg, 1889) * ''Trochus candei'' d'Orbigny, 1844: synonym of '' Gibbula candei'' (d'Orbigny, 1844) * ''Trochus capensis'' Gmelin, 1791: synonym of ''

Gibbula capensis ''Gibbula capensis'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 10 mm and 14 mm. The narrowly umbilicated shell has a conoid-depresse ...

'' (Gmelin, 1791) * ''Trochus carinatus'' d'Orbigny, 1842: synonym of '' Vitrinella carinata'' (d'Orbigny, 1842) * ''Trochus carmesinus'' Webster, 1908: synonym of ''

Coelotrochus carmesinus ''Coelotrochus carmesinus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Rosenberg, G. (2012). ''Coelotrochus carmesinus'' (Webster, 1908). Accessed through: World Register of Marine Species at ht ...

'' (Webster, 1908) * ''Trochus charopus'' Watson, 1879: synonym of ''

Solariella charopa ''Solariella charopa'' is a species of sea snail, a marine gastropod mollusk in the family Solariellidae. Description The height of the shell is 1.95 cm (0.77-inch), its diameter 1.98 cm (0.78-inch). The thin, translucent, umbilica ...

'' (Watson, 1879) * ''Trochus chemnitzii'' Philippi, 1848: synonym of '' Calliostoma zizyphinum'' ( Linnaeus,

) * ''Trochus chinensis'' Philippi, 1841: synonym of '' Stellaria chinensis'' (Philippi, 1841) * ''Trochus chrysolaemus'' Martens, 1880: synonym of ''

Priotrochus goudoti ''Priotrochus goudoti'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.WoRMS (2011). Priotrochus goudoti (Fischer, 1878). Accessed through: World Register of Marine Species at http://www.marinespeci ...

'' (Fischer, 1878) * ''Trochus cicatricosus'' Philippi, 1843: synonym of '' Bembicium auratum'' (Quoy & Gaimard, 1834) * ''Trochus cicer'' Menke, 1844: synonym of ''

Gibbula cicer ''Gibbula cicer'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of an adult shell varies between 5 mm and 8 mm. The solid, globose-conical shell is perforate or sub ...

'' (Menke, 1844) * ''Trochus ciliaris'' Menke, 1843: synonym of ''

Astele ciliaris ''Astele ciliaris'', common name the keeled Australian top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.Rosenberg, G. (2012). ''Astele ciliaris'' (Menke, 1843). Accessed through: World Register of M ...

'' (Menke, 1843) * ''Trochus cinctus'' Philippi, 1836: synonym of ''

Solariella cincta ''Solariella cincta'' is a species of sea snail, a marine gastropod mollusk in the family Solariellidae. Description Distribution This species can be found in the Northern Atlantic and off the coasts of West Africa. In the past, during the La ...

'' (Philippi, 1836) * ''Trochus cinerarius'' Linnaeus,

: synonym of '' Gibbula cineraria'' ( Linnaeus,

) * ''Trochus cinerascens'' Anton, 1838: synonym of ''

Gibbula leucophaea ''Gibbula leucophaea'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 5 mm and 7 mm. Compared with ''Gibbula adansonii'', is the shell mor ...

'' (Philippi, 1836) * ''Trochus cinereus'' Blainville, 1826 non Linnaeus,

: synonym of '' Gibbula umbilicalis'' ( da Costa, 1778) * ''Trochus cingulatus'' Grube, 1839: synonym of ''

Jujubinus striatus ''Jujubinus striatus'', common name the grooved top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. ;Subspecies: * ''Jujubinus striatus delpreteanus'' Sulliotti, 1889 * ''Jujubinus striatus ...

'' ( Linnaeus,

) * ''Trochus circulatus'' Anton, 1849: synonym of ''

Euchelus circulatus ''Euchelus'' is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae (formerly in the family Trochidae). Description The umbilicate or imperforate shell has a globose-turbinate shape. It is umbilicate or imperforate. The ...

'' (Anton, 1849) * ''Trochus clanguloides'' Wood, 1828: synonym of ''

Clanculus clanguloides ''Clanculus clanguloides'', common name the secret clanculus, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The height of the shell varies between 10 mm and 12 mm, its d ...

'' (Wood, 1828) * ''Trochus clathratus'' Aradas, 1847: synonym of ''

Putzeysia wiseri ''Putzeysia wiseri'' is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae. Description The height of the shell attains 5 mm. The small shell has a subconic shape. It contains 6–7 more or less convex whorls. Th ...

'' (Calcara, 1842) * ''Trochus clelandi'' W. Wood, 1828: synonym of '' Clelandella miliaris'' (Brocchi, 1814) * ''Trochus clodianus'' Nardo, 1847: synonym of '' Gibbula albida'' (Gmelin, 1791) * ''Trochus colubrinus'' Gould, 1849: synonym of ''

Phorcus sauciatus ''Phorcus sauciatus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. It is native to the Eastern North Atlantic Ocean off the coast of Macaronesia and the Iberian Peninsula. Description The size of ...

'' (Koch, 1845) * ''Trochus concameratus'' W. Wood, 1828: synonym of ''

Diloma concamerata ''Diloma concameratum'', common name the speckled periwinkle, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Diloma concameratum'' (Wood, 1828). Accessed through: World Registe ...

'' (Wood, 1828) * ''Trochus concavus'' Gmelin, 1791: synonym of ''

Infundibulum concavum ''Infundibulum concavum'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The height of the shell varies between 35 mm and 40 mm, its diameter between 45 mm and 47&nb ...

'' (Gmelin, 1791) * ''Trochus conchyliophorus'' Born, 1780: synonym of '' Xenophora conchyliophora'' (Born, 1780) * ''Trochus concinnus'' Philippi, 1846: synonym of ''

'' Kiener, 1850 * ''Trochus conicus'' Donovan, 1803: synonym of ''

'' (Linnaeus, 1758) * ''Trochus conoidalis'' Pease, 1868: synonym of ''

Peasiella conoidalis ''Peasiella conoidalis'' is a species of sea snail, a marine gastropod mollusk in the family Littorinidae The Littorinidae are a Taxonomy (biology), taxonomic family (biology), family of over 200 species of sea snails, marine (ocean), marine ...

'' (Pease, 1868) * ''Trochus consors'' Lischke, 1872: synonym of '' Calliostoma consors'' (Lischke, 1872) * ''Trochus constellatus'' Souverbie, 1863: synonym of ''

Diloma constellata ''Austrocochlea constellata'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Diloma constellata'' Souverbie, 1863. Accessed through: World Register of Marine Species at http:// ...

'' Souverbie, 1863 * ''Trochus conuloides'' Lamarck, 1822: synonym of '' Calliostoma zizyphinum'' (Linnaeus, 1758) * ''Trochus conulus'' Linnaeus, 1758: synonym of '' Calliostoma conulus'' (Linnaeus, 1758) * ''Trochus cookii'' Gmelin, 1791: synonym of '' Cookia sulcata'' (Lightfoot, 1786) * ''Trochus corallinus'' E.A. Smith, 1875: synonym of ''

Homalopoma amussitatum ''Homalopoma amussitatum'' is a species of small sea snail with calcareous opercula, a marine gastropod mollusk in the family Colloniidae.Bouchet, P. (2012). ''Homalopoma amussitatum'' (Gould, 1861). Accessed through: World Register of Marine S ...

'' (Gould, 1861) * ''Trochus corallinus'' Gmelin, 1791: synonym of '' Clanculus corallinus'' (Gmelin, 1791) * ''Trochus corcyrensis'' Stossich, 1865: synonym of '' Phorcus articulatus'' (Lamarck, 1822) * ''Trochus corrugata'' Koch, 1843: synonym of ''

'' (Lamarck, 1822) * ''Trochus cossurensis'' Monterosato, 1875: synonym of ''

Gibbula rarilineata ''Steromphala rarilineata'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Trochidae, the top snails.MolluscaBase (2020). MolluscaBase. Steromphala rarilineata (Michaud, 1829). Accessed through: World Regis ...

'' (Michaud, 1829) * ''Trochus costalis'' Gould, 1841: synonym of '' Margarites costalis'' (Gould, 1841) * ''Trochus cranchi'' Leach, 1852: synonym of '' Calliostoma zizyphinum'' (Linnaeus, 1758) * ''Trochus crassus'' (Pulteney, 1799): synonym of ''

Osilinus lineatus ''Phorcus lineatus'', common name the lined top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Gofas, S. (2012). ''Phorcus lineatus'' (da Costa, 1778). Accessed through: World Register o ...

'' (da Costa, 1778) * ''Trochus creniferus'' Kiener: synonym of '' Trochus incrassatus'' Lamarck, 1822 * ''Trochus crenulatus'' Brocchi, 1814: synonym of ''

'' (Pennant, 1777) * ''Trochus crispulus'' Philippi, 1844: synonym of ''

'' (Calcara, 1842) * ''Trochus crispus'' König, 1825: synonym of ''

Xenophora (Xenophora) crispa ''Xenophora'', commonly called carrier shells, is a genus of medium-sized to large sea snails, marine gastropod mollusks in the family Xenophoridae, the carrier snails or carrier shells. WoRMS (2012). Xenophora. Accessed through: World Reg ...

'' (König, 1825) * ''Trochus cruciatus'' Linnaeus, 1758: synonym of '' Clanculus cruciatus'' (Linnaeus, 1758) * ''Trochus cruentatus'' Mühlfeld, 1824: synonym of ''

Arene cruentata ''Arene cruentata'' is a species of small sea snail, a marine gastropod mollusc in the family Areneidae Areneidae is a family of sea snails, marine gastropod mollusks in the clade Vetigastropoda.MolluscaBase eds. (2020). MolluscaBase. Arene ...

'' (Mühlfeld, 1824) * ''Trochus cumingii'' Philippi, 1846: synonym of '' Tectarius cumingii'' (Philippi, 1846) * ''Trochus cunninghami'' Gray, 1834: synonym of '' Calliostoma selectum'' (Dillwyn, 1817) * ''Trochus cylindraceus'' Dillwyn, 1817: synonym of '' Heliacus cylindricus'' (Gmelin, 1791) * ''Trochus cylindricus'' Gmelin, 1791: synonym of '' Heliacus cylindricus'' (Gmelin, 1791) * ''Trochus cyrnaeus'' Requien, 1848: synonym of '' Jujubinus montagui'' (Wood, 1828) * ''Trochus dama'' Philippi, 1848: synonym of ''

Monodonta dama ''Monodonta nebulosa'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The shell size varies between 15 mm and 22 mm, the body volume is 1.46 cm^3, and the wet body mass is 2.55 gr ...

'' (Philippi, 1848) * ''Trochus dejacobi'' Aradas & Benoit, 1841: synonym of ''

'' (Pennant, 1777) * ''Trochus delicatulus'' Philippi, 1846: synonym of ''

Coelotrochus tiaratus ''Coelotrochus tiaratus'', whose common names include tiara top shell, brown top shell, mititi, and mitimiti is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Rosenberg, G. (2012). ''Coelotrochus tiarat ...

'' (Quoy & Gaimard, 1834) * ''Trochus delicatus'' Jeffreys, 1883: synonym of ''

Margarites luciae ''Margarites'' is a genus of sea snails, marine gastropod mollusks in the family Margaritidae. This genus belonged previously to the subfamily Margaritinae in the family Turbinidae. Description This genus consists of small species of varia ...

'' (G. Seguenza, 1876) * ''Trochus delpretei'' Caramagna, 1888: synonym of '' Vaceuchelus delpretei'' (Caramagna, 1888) * ''Trochus dentatus'' Forskål in Niebuhr, 1775: synonym of ''

Tectus (Tectus) dentatus ''Tectus dentatus'', common name the toothed top shell, is a species of sea snail, marine gastropod mollusk in the family Tegulidae. Description ''Tectus dentatus'' has a shell that reaches a size of 40 – 150 mm. The large, imperforat ...

'' (Forskål in Niebuhr, 1775) * ''Trochus depictus'' Deshayes, 1835: synonym of ''

'' (Linnaeus, 1758) * ''Trochus depressus'' Martens, 1874: synonym of ''

Clanculus miniatus ''Clanculus miniatus'', common name the keeled top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The height of the shell varies between 12½ mm and 15 mm, its diameter b ...

'' (Anton, 1838) * ''Trochus dianthus'' P. Fischer, 1879: synonym of ''

Spectamen bellulum ''Spectamen bellulum'' is a species of sea snail, a marine gastropod mollusk, in the family Solariellidae Solariellidae is a family of small sea snails, marine gastropod mollusks in the superfamily Trochoidea (according to the taxonomy of th ...

'' (Angas, 1869) * ''Trochus diaphanus'' Gmelin, 1791: synonym of ''

Calliostoma punctulatum ''Maurea punctulata'' is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.MolluscaBase (2018). ''Maurea punctulata'' (Martyn, 178 ...

'' (Martyn, 1784) * ''Trochus diaphanus'' d'Orbigny, 1842: synonym of ''

Vitrinella diaphana ''Vitrinella'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Vitrinellidae.Rosenberg, G.; Bouchet, P. (2015). Vitrinella. In: MolluscaBase (2015). Accessed through: World Register of Marine Species a ...

'' (d'Orbigny, 1842) * ''Trochus dilectus'' Sowerby III, 1899: synonym of ''

Pseudominolia articulata ''Pseudominolia articulata'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.WoRMS (2012). ''Pseudominolia articulata'' (Gould, 1861). Accessed through: World Register of Marine Species at http: ...

'' (Gould, 1861) * ''Trochus diminutivus'' Reeve, 1862: synonym of ''

Peasiella tantilla ''Peasiella tantilla'' is a species of sea snail, a marine gastropod mollusk in the family Littorinidae The Littorinidae are a Taxonomy (biology), taxonomic family (biology), family of over 200 species of sea snails, marine (ocean), marine ga ...

'' (Gould, 1849) * ''Trochus discrepans'' Brown, 1818: synonym of '' Calliostoma zizyphinum'' (Linnaeus, 1758) * ''Trochus divaricatus'' Fabricius, 1780: synonym of ''

Lacuna vincta ''Lacuna vincta'', commonly known as the northern lacuna, the wide lacuna, the northern chink shell, or the banded chink shell, is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles. It is ...

'' (Montagu, 1803) * ''Trochus divaricatus'' Linnaeus, 1758: synonym of ''

Gibbula divaricata ''Steromphala divaricata'', common name the divaricate gibbula, is a species of small sea snail, known as top snails or top shells, marine gastropod molluscs in the family Trochidae, the top snails.MolluscaBase eds. (2020). MolluscaBase. Steromph ...

'' (Linnaeus, 1758) * ''Trochus dnopherus'' Watson, 1879: synonym of '' Margarites dnopherus'' (Watson, 1879) * ''Trochus dolabratus'' Linnaeus, 1758: synonym of ''

Pyramidella dolabrata ''Pyramidella dolabrata'', common name the "giant Atlantic pyram", is a somewhat variable species of small to medium-sized (max size 36 mm) sea snail, a marine gastropod mollusk in the (mostly minute) family Pyramidellidae, the pyram snails. ...

'' (Linnaeus, 1758) * ''Trochus drepanensis'' Brugnone, 1873: synonym of ''

Gibbula drepanensis ''Gibbula drepanensis'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 2 mm and 5 mm. The small shell is narrowly umbilicate, depressed, ...

'' (Brugnone, 1873) * ''Trochus dubius'' Philippi, 1844: synonym of ''Calliostoma conulum'' (Linnaeus, 1758): synonym of '' Calliostoma conulus'' (Linnaeus, 1758) * ''Trochus dumerili'' Risso, 1826: synonym of ''

'' (Pennant, 1777) * ''Trochus elatus'' Brusina, 1865: synonym of '' Gibbula varia'' (Linnaeus, 1758) * ''Trochus electissimus'' Bean in Thorpe, 1844: synonym of '' Gibbula cineraria'' (Linnaeus, 1758) * ''Trochus elegans'' de Blainville, 1830: synonym of ''

'' (Pennant, 1777) * ''Trochus elegan''s Gmelin, 1791: synonym of '' Cantharidus purpureus'' (Gmelin, 1791) * ''Trochus elegantissimus'' Costa O.G., 1861: synonym of ''

Mathilda cochlaeformis Matilda or Mathilda may refer to: Animals * Matilda (chicken) (1990–2006), World's Oldest Living Chicken record holder * Matilda (horse) (1824–1846), British Thoroughbred racehorse * Matilda, a dog of the professional wrestling tag-team The ...

'' Brugnone, 1873 * ''Trochus elongatus'' Wood, 1828: synonym of ''

'' (Jonas, 1844) * ''Trochus eltoniae'' Lowe, 1861: synonym of '' Gibbula cineraria'' (Linnaeus, 1758) * ''Trochus episcopus'' Hombron & Jacquinot, 1954: synonym of ''

Cantharidus capillaceus ''Cantharidus capillaceus'' is a species of sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.Rosenberg, G. (2013). Cantharidus capillaceus (Philippi, 1849). Accessed through: World Register of Marine Species at http:/ ...

'' (Philippi, 1849) * ''Trochus erithreus'' Brocchi, 1821: synonym of ''

Infundibulops erithreus ''Trochus erithreus'' is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.Bouchet, P.; Rosenberg, G.; Gofas, S. (2014). Trochus erithreus Brocchi, 1821. Accessed through: World Register of Marine ...

'' (Brocchi, 1821) * ''Trochus erythraeus'' Brocchi, 1821: synonym of ''

'' (Brocchi, 1821) * ''Trochus erythreus'' ic synonym of ''

'' (Brocchi, 1821) * ''Trochus erythroleucos'' Gmelin, 1791: synonym of ''

'' (Pennant, 1777) * ''Trochus euryomphalus'' Jonas, 1844: synonym of '' Tegula euryomphala'' (Jonas, 1844) * ''Trochus eucosmus'' Philippi, 1848: synonym of '' Trochus radiatus'' Gmelin, 1791 * ''Trochus euxinicus'' Andrzeiewsky, 1837: synonym of ''

'' (Philippi, 1836) * ''Trochus exasperatus'' Pennant, 1777: synonym of ''

'' (Pennant, 1777) * ''Trochus excavatus'' Lamarck, 1822: synonym of '' Tegula excavata'' (Lamarck, 1822) * ''Trochus exiguus'' Pulteney, 1799: synonym of ''

'' (Pennant, 1777) * ''Trochus exilis'' ''Philippi, 1844'': synonym of ''

Dikoleps cutleriana ''Dikoleps cutleriana'' is a species of sea snail, a marine gastropod mollusk in the family Skeneidae. Description The size of the shell varies between 0.4 mm and 1.2 mm. Distribution This marine species occurs in European waters in ...

'' (Clark, 1849) * ''Trochus fanuloides'' ''P. Fischer, 1874'': synonym of ''

Rubritrochus pulcherrimus ''Rubritrochus pulcherrimus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Rubritrochus pulcherrimus'' (A. Adams, 1855). Accessed through: World Register of Marine Speci ...

'' (A. Adams, 1855) * ''Trochus fanulum'' Gmelin, 1791: synonym of ''

Gibbula fanulum ''Gibbula fanulum'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 9 mm and 19 mm. The solid, umbilicate or perforate shell has a conical ...

'' (Gmelin, 1791) * ''Trochus fermoni'' Payraudeau, 1826: synonym of ''

'' (Salis Marschlins, 1793) * ''Trochus festivus'' Philippi, 1844: synonym of '' Trochus radiatus'' Gmelin, 1791 * ''Trochus fictilis'' Jonas, 1846: synonym of ''

'' Brocchi, 1821 * ''Trochus filosus'' Philippi, 1844: synonym of ''

Cantrainea peloritana ''Cantrainea peloritana'' is a species of sea snail, a marine gastropod mollusk in the family Colloniidae. Description The height of the shell varies between 5 mm and 20 mm. C. peloritana lives in the bathyal zone at depths between ...

'' (Cantraine, 1835) * ''Trochus flavus'' Anton in Philippi, 1849: synonym of '' Calliostoma zizyphinum'' (Linnaeus, 1758) * ''Trochus flosculus'' P. Fischer, 1878: synonym of ''

Clanculus flosculus ''Clanculus flosculus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 9 mm and 15 mm. The thick, narrowly perforate shell has a conoid sh ...

'' P. Fischer, 1880 * ''Trochus fonki'' Philippi, 1860: synonym of ''

Calliostoma fonki ''Calliostoma fonki'' is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.Bouchet, P. (2012). ''Calliostoma fonki'' (Philippi, 1860). Accessed through: World Register of Marine Species at http://www.marinesp ...

'' (Philippi, 1860) * ''Trochus formosus'' McAndrew & Forbes, 1847: synonym of '' Calliostoma occidentale'' (Mighels & C. B. Adams, 1842) * ''Trochus forskali'' (Bolt.) Morch: synonym of ''

'' Lamarck, 1822 * ''Trochus fossulatulus'' Souverbie in Souverbie & Montrouzier, 1875: synonym of ''

Hybochelus cancellatus ''Hybochelus cancellatus'' is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae.Bouchet, P. (2012). ''Hybochelus cancellatus'' (Krauss, 1848). Retrieved through: World Register of Marine Species at http://www.ma ...

'' (Krauss, 1848) * ''Trochus fragilis'' Pulteney, 1799: synonym of ''

Calliostoma granulatum ''Calliostoma granulatum'', common name the European granular top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. Some authors place this taxon in the subgenus ''Calliostoma (Maurea)''. Descripti ...

'' (Born, 1778) * ''Trochus fragum'' Philippi, 1848: synonym of '' Calliostoma fragum'' (Philippi, 1848) * ''Trochus fultoni'' G.B. Sowerby III, 1890: synonym of ''

Cantharidus fultoni ''Cantharidus'', common name the kelp shells, is a genus of sea snails, marine gastropod molluscs of the family Trochidae, the top shells.Rosenberg, G.; Bouchet, P. (2013). Cantharidus Montfort, 1810. Accessed through: World Register of Marine ...

'' (G. B. Sowerby III, 1890) * ''Trochus fulvolabris'' Hmobron & Jacquinot, 1854: synonym of ''

'' (Gmelin, 1791) * ''Trochus fuscatus'' Gmelin, 1791: synonym of '' Gibbula umbilicaris'' (Linnaeus, 1758) * ''Trochus gemmatus'' Gould, 1845: synonym of ''

Euchelus gemmatus ''Herpetopoma gemmatum'' is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae.MolluscaBase eds. (2020). MolluscaBase. Herpetopoma gemmatum (Gould, 1845). Accessed through: World Register of Marine Species at: http ...

'' (Gould, 1845) * ''Trochus gemmosus'' Reeve, 1842: synonym of '' Astele rubiginosa'' (Valenciennes, 1846) * ''Trochus gibberosus'' Dillwyn, 1817: synonym of '' Pomaulax gibberosus'' (Dillwyn, 1817) * ''Trochus gibbosulus'' Brusina, 1865: synonym of '' Gibbula varia'' (Linnaeus, 1758) * ''Trochus gilberti'' Montrouzier in Fischer, 1878: synonym of ''

Cantharidus polychroma ''Jujubinus polychroma'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.MolluscaBase eds. (2020). MolluscaBase. Jujubinus polychroma (A. Adams, 1853). Accessed through: World Register of Marine S ...

'' (A. Adams, 1853) * ''Trochus girgyllus'' Reeve, 1861: synonym of ''

Bolma girgyllus ''Bolma girgyllus'',Beu A.G. & Ponder W.F. (1979) A revision of the species of Bolma Risso, 1826 (Gastropoda: Turbinidae). Records of the Australian Museum 32(1): 1–68. 1 May 1979 available online at http://web1.australianmuseum.net.au/Uploa ...

'' (Reeve, 1861) * ''Trochus glabratus'' Philippi, 1844: synonym of ''

'' (Cantraine, 1835) * ''Trochus gmelini'' Jonas, 1846: synonym of '' Trochus maculatus'' Linnaeus, 1758 * ''Trochus goudoti'' (Fischer, 1878): synonym of ''

'' (Fischer, 1878) * ''Trochus granatum'' Gmelin, 1791: synonym of '' Calliostoma tigris'' (Gmelin, 1791) * ''Trochus grandinatus'' Röding, P.F., 1798: synonym of '' Trochus maculatus'' Linnaeus, 1758 * ''Trochus granosus'' Lamarck, J.B.P.A. de, 1818: synonym of '' Trochus maculatus'' Linnaeus, 1758 * ''Trochus granosus'' Martyn, 1784: synonym of ''

Turbo granosus ''Modelia granosa'', common name the southern cat's eye, is a medium to large species of sea snail which has a shell with a pearly interior and a calcareous operculum. It is a marine gastropod mollusc in the family Turbinidae, the turban snai ...

'' (Martyn, 1784) * ''Trochus granulatus'' Born, 1778: synonym of ''

'' (Born, 1778) * ''Trochus gravesi'' Forbes, 1844: synonym of ''

'' (Linnaeus, 1758) * ''Trochus gravinae'' Dautzenberg, 1881: synonym of ''

Jujubinus gravinae ''Jujubinus gravinae'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Trochidae, the top snails. Description The size of the shell varies between 3 mm and 7.5 mm. Distribution This species occu ...

'' (Dautzenberg, 1881) * ''Trochus grayanus'' Philippi, 1846: synonym of ''

'' (Linnaeus, 1758) * ''Trochus groenlandicus'' Gmelin, 1791: synonym of ''

Margarites groenlandicus ''Margarites groenlandicus'', common name the Greenland margarite or wavy top shell, is a species of sea snail, a marine gastropod mollusk in the family Margaritidae. There are two subspecies : * ''Margarites groenlandicus groenlandicus'' (Gmel ...

'' (Gmelin, 1791) * ''Trochus gualterianus'' Philippi, 1848: synonym of ''

Calliostoma gualterianum ''Calliostoma gualterianum'', common name Gualtieri's top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. Description The size of the shell varies between 10 mm and 17 mm. The imperforate ...

'' (Philippi, 1848) * ''Trochus gualtierii'' Weinkauff, 1868: synonym of ''

'' (Philippi, 1848) * ''Trochus guildfordiae'' Reeve, 1842: synonym of '' Guildfordia triumphans'' (Philippi, 1841) * ''Trochus guttadauri'' Philippi, 1836: synonym of ''

Gibbula guttadauri ''Gibbula guttadauri'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 4 mm and 11 mm. The small, umbilicate shell has a conical shape ...

'' (Philippi, 1836) * ''Trochus haematragus'' Menke, 1829: synonym of ''

Astralium haematragum ''Astralium haematragum'', common name the Pacific star shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Description The size of the shell varies between 15 mm and 25 mm. Th ...

'' (Menke, 1829) * ''Trochus hanleyanus'' Krauss, 1848: synonym of ''

'' Reeve, 1861 * ''Trochus helicinus'' (Phipps, 1774): synonym of ''

Margarites helicinus ''Margarites helicinus'', common name the helicina margarite or spiral margarite, is a species of sea snail, a marine gastropod mollusk in the family Margaritidae. ''Margarites helicinus'' has been established by Phipps in 1774 and not by Fabri ...

'' (Phipps, 1774) * ''Trochus heliotropium'' Martyn, 1784: synonym of ''

Astraea heliotropium ''Astraea heliotropium'', common name the sunburst star turban or the circular saw shell, is a large sea snail, a marine gastropod mollusc of the family Turbinidae, the turbans and star snails.WoRMS (2010). ''Astraea heliotropium'' (Martyn, 1784 ...

'' (Martyn, 1784) * ''Trochus hornungi'' Bisacchi, 1931: synonym of ''

Ethminolia hornungi ''Ethminolia hornungi'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description Distribution This species occurs in the Red Sea The Red Sea ( ar, البحر الأحمر - بحر الق ...

'' (Bisacchi, 1931) * ''Trochus horridus'' Costa O.G., 1861: synonym of '' Danilia tinei'' (Calcara, 1839) * ''Trochus horridus'' Philippi, 1846: synonym of '' Euchelus horridus'' (Philippi, 1846) * ''Trochus hyacinthinus'' de Blainville, 1830: synonym of ''

Calliostoma laugieri ''Calliostoma laugieri'' is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. ;Subspecies: * ''Calliostoma laugieri laugieri'' (Payraudeau, 1826) * ''Calliostoma laugieri spongiarum'' (Bucquoy, Dautzenberg & Do ...

'' (Payraudeau, 1826) * ''Trochus hybridus'' Linnaeus, 1758: synonym of ''

Philippia hybrida ''Philippia'' is a genus of plant in family Ericaceae. Its species range from southern to tropical Africa, Madagascar, and the Mascarene Islands. ''Philippia'' is a characteristic Afromontane genus in southern and eastern Africa, found in mont ...

'' (Linnaeus, 1758) * ''Trochus imperialis'' Gmelin, 1791: synonym of ''

'' (Martyn, 1784) * ''Trochus impervius'' Menke, 1843: synonym of ''

Oxystele impervia ''Oxystele impervia'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 12 mm and 18 mm. The imperforate, rather thin shell has a conoidal s ...

'' (Menke, 1843) * ''Trochus incrassatus'' Lamarck, 1822: synonym of ''

Trochus stellatus ''Trochus stellatus'', common name the stellate trochus, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

'' Gmelin, 1791 * ''Trochus indicus'' Gmelin, 1791: synonym of ''

Onustus indicus ''Onustus indicus'' is a species of large sea snail, a marine gastropod mollusk in the family Xenophoridae, the carrier shells. Description Distribution ''Onustus indicus'' is distributed in the tropical Indian Ocean (excluding Arabian Sea), t ...

'' (Gmelin, 1791) * ''Trochus inflatus'' Blainville, 1826: synonym of '' Gibbula cineraria'' (Linnaeus, 1758) * ''Trochus infundibuliformis'' Gmelin, 1791: synonym of ''

Heliacus (Teretropoma) infundibuliformis infundibuliformis ''Heliacus'' is a genus of gastropods belonging to the family Architectonicidae. The genus has cosmopolitan distribution. Species: *'' Heliacus anaglyptus'' *''Heliacus areola'' *'' Heliacus asteleformis'' *''Heliacus bisulcatus'' *'' Hel ...

'' (Gmelin, 1791) * ''Trochus infundibulum'' Watson, 1879: synonym of ''

Calliotropis infundibulum ''Calliotropis infundibulum'' is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae. Description (Original description by Watson) The shell size varies between 6 mm and 18 mm. The shell has a conical shape wit ...

'' (Watson, 1879) * ''Trochus inornatus'' d’Orbigny, 1842: synonym of '' Episcynia inornata'' (d’Orbigny, 1842) * ''Trochus instrictus'' Gould, 1849: synonym of '' Herpetopoma instrictum'' (Gould, 1849) * ''Trochus intermedius'' Monterosato, 1872: synonym of ''

Phorcus mutabilis ''Phorcus mutabilis'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 12 mm and 24 mm. The solid, globose-conoid shell is umbilicate or s ...

'' (Philippi, 1846) * ''Trochus interruptus'' Wood, 1828: synonym of ''

Calliostoma interruptus ''Calliostoma interruptus'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This cl ...

'' (Wood, 1828) * ''Trochus iridescens'' Schrenck, 1863: synonym of ''

Lirularia iridescens ''Lirularia iridescens'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2014). Lirularia iridescens (Schrenck, 1863). Accessed through: World Register of Marine Species at http://www ...

'' (Schrenck, 1863) * ''Trochus iris'' Gmelin, 1791: synonym of '' Cantharidus iris'' (Gmelin, 1791) * ''Trochus irisodontes'' Quoy & Gaimard, 1834: synonym of ''

Phasianotrochus irisodontes ''Phasianotrochus irisodontes'', common name maireener, rainbow kelp shell, or green necklace shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Phasianotrochus irisodont ...

'' (Quoy & Gaimard, 1834) * ''Trochus irregularis'' Leach, 1852: synonym of '' Calliostoma zizyphinum'' (Linnaeus, 1758) * ''Trochus japonicus'' (Dunker, 1845): synonym of ''

Pomaulax japonicus ''Pomaulax japonicus'', the Japanese star shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Description The size of the shell attains 90 mm. The large, imperforate shell has a depress ...

'' (Dunker, 1845) * ''Trochus jonasi'' Philippi: synonym of '' Trochus maculatus'' Linnaeus, 1758 * ''Trochus jujubinus'' Gmelin, 1791: synonym of ''

Calliostoma jujubinum ''Calliostoma jujubinum'', common name the jujube top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. Description The size of the shell varies between 13 mm and 34 mm. The solid, heavy ...

'' (Gmelin, 1791) * ''Trochus kochii'' Kiener: synonym of ''

'' Brocchi, 1821 * ''Trochus labio'' Linnaeus, 1758: synonym of '' Monodonta labio'' (Linnaeus, 1758) * ''Trochus laceyi'' (G.B. Sowerby, 1889): synonym of ''

'' (Anton, 1838) * ''Trochus laevigatus'' Gmelin, 1791: synonym of '' Gibbula varia'' (Linnaeus, 1758) * ''Trochus laevigatus'' Sowerby J., 1817: synonym of '' Calliostoma zizyphinum'' (Linnaeus, 1758) * ''Trochus laevigatus'' Philippi, 1836: synonym of ''

'' (Philippi, 1848) * ''Trochus laevissimus'' Martens, 1881: synonym of ''

Ilanga laevissima ''Ilanga laevissima'' is a species of sea snail, a marine gastropod mollusk in the family Solariellidae.WoRMS (2012). ''Ilanga laevissima'' (Martens, 1881). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia ...

'' (Martens, 1881) * ''Trochus lamberti'' Souverbie, 1875: synonym of ''

Vaceuchelus roseolus ''Tallorbis roseola'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.WoRMS (2012). ''Tallorbis roseola'' G. Nevill & H. Nevill, 1869. Accessed through: World Register of Marine Species at http: ...

'' (G. Nevill & H. Nevill, 1869) * ''Trochus laminarum'' Jeffreys, 1883: synonym of '' Margarites laminarum'' (Jeffreys, 1883) * ''Trochus lapistina'' Philippi, 1844: synonym of ''

Astralium latispina ''Astralium latispina'' is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.Rosenberg, G. (2012). ''Astralium latispina'' (Philippi, 1844). Accessed through: World Register of Marine Species at ...

'' (Philippi, 1844) * ''Trochus largillierti'' Philippi, 1849: synonym of ''

Clanculus largillierti ''Clanculus largillierti'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.WoRMS (2012). ''Clanculus largillierti'' (Philippi, 1849). Accessed through: World Register of Marine Species at http:/ ...

'' (Philippi, 1849) * ''Trochus latior'' Monterosato, 1880: synonym of '' Gibbula umbilicaris'' (Linnaeus, 1758) * ''Trochus laugieri'' Payraudeau, 1826: synonym of ''

'' (Payraudeau, 1826) * ''Trochus leachii'' Philippi, 1846: synonym of '' Margarites costalis'' (Gould, 1841) * ''Trochus lehmanni'' Menke, 1843: synonym of ''

Prothalotia lehmanni ''Prothalotia lehmanni'', common name Lehmann's top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Prothalotia lehmanni'' (Menke, 1843). Accessed through: World Register ...

'' (Menke, 1843) * ''Trochus lentiginosus'' Fischer: synonym of ''

Monilea lentiginosa ''Monilea lentiginosa'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Marshall, B. (2014). Monilea lentiginosa (A. Adams, 1851). Accessed through: World Register of Marine Species at http://www ...

'' (A. Adams, 1853) * ''Trochus lepidus'' Philippi, 1846: synonym of ''

Strigosella lepida ''Cantharidus lepidus'' is a species of sea snail, a marine gastropod mollusc in the family Trochidae The Trochidae, common name top-snails or top-shells, are a family of various sized sea snails, marine gastropod molluscs in the subclass Veti ...

'' (Philippi, 1846) * ''Trochus leucophaeus'' Philippi, 1836: synonym of ''

(''Philippi, 1836) * ''Trochus lifuanus'' Fischer, 1878: synonym of ''

Monilea lifuana ''Monilea lifuana'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Monilea lifuana'' (P. Fischer, 1878). Accessed through: World Register of Marine Species at http://www.m ...

'' (P. Fischer, 1878) * ''Trochus ligulatus'' Menke, 1850: synonym of ''

Tegula ligulata ''Tegula ligulata'' is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.WoRMS (2012). ''Tegula ligulata'' (Menke, 1850). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=tax ...

'' (Menke, 1850) * ''Trochus lima'' Watson, 1879: synonym of ''

Trochus rhina ''Trochus'' is a genus of medium-sized to large, top-shaped sea snails with an operculum and a pearly inside to their shells, marine gastropod molluscs in the subfamily Trochinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. ...

'' Watson, 1886 * ''Trochus lineatus'' da Costa, 1778: synonym of '' Gibbula cineraria'' (Linnaeus, 1758) * ''Trochus lineatus'' Lamarck, J.B.P.A. de, 1822: synonym of ''

'' (Menke, 1829) * ''Trochus lineolatus'' O. G. Costa, 1830: synonym of ''

'' (Linnaeus, 1758) * ''Trochus lineolatus'' Potiez & Michaud, 1838: synonym of '' Gibbula cineraria'' (Linnaeus, 1758) * ''Trochus lineolatus'' Risso, 1826: synonym of '' Calliostoma zizyphinum'' (Linnaeus, 1758) * ''Trochus listeri'' Kiener: synonym of '' Trochus kochii'' Philippi, 1844 * ''Trochus lithophorus'' Blumenbach, 1803: synonym of '' Xenophora conchyliophora'' (Born, 1780) * ''Trochus littoralis'' Brusina, 1865: synonym of ''

'' (Linnaeus, 1758) * ''Trochus lucidus'' Risso, 1826: synonym of ''Calliostoma conulum'' (Linnaeus, 1758): synonym of '' Calliostoma conulus'' (Linnaeus, 1758) * ''Trochus luctuosus'' d'Orbigny, 1841: synonym of ''

Tegula luctuosa ''Tegula luctuosa'' is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.Bouchet, P. (2013). Tegula luctuosa (d'Orbigny, 1841). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php? ...

'' (d'Orbigny, 1841) * ''Trochus lugubris'' Gmelin, 1791: synonym of ''

Diloma aethiops ''Diloma aethiops'', whose common names include scorched monodont, spotted black topshell, and in the Māori language pūpū, pūpū-mai, or māihi is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, subfamily Mo ...

'' (Gmelin, 1791) * ''Trochus lunaris'' Gmelin, 1791: synonym of '' Limacina retroversa'' (Fleming, 1823) * ''Trochus luteus'' Quoy & Gaimard, 1834: synonym of ''

Bembicium melanostoma ''Bembicium melanostoma'' is a species of sea snail, a marine gastropod mollusk in the family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity ( ...

'' (Gmelin, 1791) * ''Trochus lyciacus'' Forbes, 1844: synonym of '' Gibbula albida'' (Gmelin, 1791) * ''Trochus lyonsii'' Leach, 1852: synonym of '' Calliostoma zizyphinum'' (Linnaeus, 1758) * ''Trochus macandreae'' Carpenter, 1857: synonym of ''

Calliostoma leanum ''Calliostoma leanum'', common name the pretty mouth, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.Rosenberg, G.; Bouchet, P. (2012). ''Calliostoma leanum'' (C. B. Adams, 1852). Accessed through: World Reg ...

'' (C. B. Adams, 1852) * ''Trochus maculatus'' Risso, 1826: synonym of ''

'' (Payraudeau, 1826) * ''Trochus maculatus verrucosus'' Gmelin, J.F., 1791: synonym of ''

'' Kiener, 1850 * ''Trochus magulus'' Deshayes, 1835: synonym of '' Gibbula albida'' (Gmelin, 1791) * ''Trochus magus'' Linnaeus, 1758: synonym of ''

'' (Linnaeus, 1758) * ''Trochus margaritarius'' (Philippi, 1846): synonym of ''

Clanculus margaritarius ''Clanculus margaritarius'', common name the beautiful clanculus, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. ''Clanculus margaritarius multipunctatus'' Jansen, 1995: synonym of ''Clanculus mul ...

'' (Philippi, 1846) * ''Trochus mariei'' Fischer, 1886: synonym of ''

Pagodatrochus variabilis ''Pagodatrochus variabilis'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This clas ...

'' (H. Adams, 1873) * ''Trochus marmoreus'' Pease, 1868: synonym of '' Cantharidus marmoreus'' (Pease, 1868) * ''Trochus martini'' Smith J., 1839: synonym of '' Clelandella miliaris'' (Brocchi, 1814) * ''Trochus matoni'' Payraudeau, 1826: synonym of ''

'' (Pennant, 1777) * ''Trochus mauritianus'' Gmelin, 1791: synonym of ''

Tectus mauritianus ''Tectus mauritianus'', common name the Mauritius top shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Description The height of the shell varies between 40 mm and 60 mm, it ...

'' (Gmelin, 1791) * ''Trochus mediterraneus'' Wood W., 1828: synonym of '' Clanculus cruciatus'' (Linnaeus, 1758) * ''Trochus melanostoma'' Gmelin, 1791: synonym of ''

'' (Gmelin, 1791) * ''Trochus merula'' Dillwyn, 1817: synonym of '' Oxystele merula'' (Dillwyn, 1817) * ''Trochus metallicus'' Reeve, 1861: synonym of '' Trochus intextus'' Kiener, 1850 * ''Trochus meyeri'' Philippi, 1848: synonym of ''

'' (Wood, 1828) * ''Trochus michaudi'' de Blainville, 1830: synonym of ''

Gibbula philberti ''Gibbula philberti'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 8 mm and 13 mm. The thin, small, umbilicate shell has a conical shap ...

'' (Récluz, 1843) * ''Trochus miliaris'' Brocchi, 1814: synonym of '' Clelandella miliaris'' (Brocchi, 1814) * ''Trochus millegranus'' Philippi, 1836: synonym of '' Clelandella miliaris'' (Brocchi, 1814) * ''Trochus miniatus'' Anton, 1838: synonym of ''

'' (Anton, 1838) * ''Trochus minimum'' Benoit, 1843: synonym of ''

Homalopoma sanguineum ''Homalopoma sanguineum'' is a species of sea snail, a marine gastropod mollusk in the family Colloniidae. Description The shell is very small, its length measuring 3.5 – 4 mm and it is 6.5 mm wide. The small, very solid, shell has ...

'' (Linnaeus, 1758) * ''Trochus minutulus'' Jeffreys, 1883: synonym of ''

Lissotesta minima ''Lissotesta minima'' is a species of sea snail, a marine gastropod mollusk, unassigned in the superfamily Seguenzioidea. Description The size of the shell varies between 0.8 mm and 1.5 mm. Distribution This bathyal species occurs ...

'' (Seguenza, 1876) * ''Trochus modestus'' Reeve, 1843: synonym of ''

Bolma modesta ''Bolma modesta'', common name the modest bolma, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Description The size of the shell varies between 33 mm and 55 mm. The imperforate, ...

'' (Reeve, 1843) * ''Trochus modulus'' Linnaeus, 1758: synonym of ''

Modulus modulus ''Modulus modulus'', commonly known as the buttonsnail, is a species of small sea snail, a marine gastropod mollusk in the family Modulidae Modulidae, common name modulids, is a family of small sea snails, marine gastropod molluscs in the sup ...

'' (Linnaeus, 1758) * ''Trochus mongenii'' Monterosato, 1872: synonym of ''

'' (Philippi, 1846) * ''Trochus montacuti'' Jeffreys, 1865: synonym of '' Jujubinus montagui'' (Wood, 1828) * ''Trochus montagui'' Wood, 1828: synonym of '' Jujubinus montagui'' (Wood, 1828) * ''Trochus multicolor'' Krauss, 1848: synonym of ''

Gibbula multicolor ''Gibbula multicolor'', common name the multicoloured topshell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The height of the shell attains 6½ mm, its diameter 7 mm. The small ...

'' (Krauss, 1848) * ''Trochus multigranus'' Philippi, 1848: synonym of '' Clanculus corallinus'' (Gmelin, 1791) * ''Trochus muricatus'' Linnaeus, 1758: synonym of ''

Cenchritis muricatus ''Cenchritis muricatus'' is a species of sea snail in the family Littorinidae, the winkles or periwinkles. It occurs in the Caribbean Sea, the Gulf of Mexico and the Lesser Antilles The Lesser Antilles ( es, link=no, Antillas Menores; fren ...

'' (Linnaeus, 1758) * ''Trochus mutabilis'' Philippi, 1846: synonym of ''

'' (Philippi, 1846) * ''Trochus nabateus'' Issel, 1869: synonym of ''

Priotrochus obscurus obscurus ''Priotrochus'' is a genus of sea snails, marine gastropod mollusks in the subfamily Cantharidinae of the family Trochidae, the top snails.Bouchet, P. (2012). Priotrochus P. Fischer, 1879. Accessed through: World Register of Marine Species at htt ...

'' (Wood, 1828) * ''Trochus nanus'' Lamarck, 1822: synonym of ''

Bembicium nanum ''Bembicium nanum'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Littorinidae, the winkles or periwinkles. References

Littorinidae Gastropods described in 1822 {{Littorinidae-stub ...

'' (Lamarck, 1822) * ''Trochus nebulosus'' Philippi, 1848: synonym of '' Gibbula umbilicaris'' (Linnaeus, 1758) * ''Trochus neritoides'' Philippi, 1849: synonym of ''

Monodonta neritoides ''Monodonta neritoides'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Monodonta neritoides'' (Philippi, 1849). Accessed through: World Register of Marine Species at http ...

'' (Philippi, 1849) * ''Trochus nigerrimus'' Gmelin, 1791: synonym of '' Omphalius nigerrimus'' (Gmelin, 1791) * ''Trochus niloticus'' Linnaeus, 1767: synonym of '' Tectus niloticus'' (Linnaeus, 1767) * ''Trochus nobilis'' Philippi, 1848: synonym of '' Astele rubiginosa'' (Valenciennes, 1846) * ''Trochus nucleus'' Philippi, 1849: synonym of ''

Rossiteria nucleus ''Rossiteria nucleus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2014). Rossiteria nucleus (Philippi, 1849). Accessed through: World Register of Marine Species at http://www.marine ...

'' (Philippi, 1849) * ''Trochus obliquatus'' Gmelin, 1791: synonym of '' Gibbula umbilicalis'' (da Costa, 1778) * ''Trochus obscurus'' Wood, 1828: synonym of ''

Priotrochus obscurus ''Priotrochus obscurus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. ;Subspecies: * ''Priotrochus obscurus obscurus'' (Wood, 1828) (synonyms: ''Gibbula (Priotrochus) sepulchralis'' (Melvill ...

'' (W. Wood, 1828) * ''Trochus occidentalis'' Mighels & Adams, 1842: synonym of '' Calliostoma occidentale'' (Mighels & C. B. Adams, 1842) * ''Trochus ochotensis'' Philippi, 1851: synonym of ''

Margarites ochotensis ''Margarites'' is a genus of sea snails, marine gastropod mollusks in the family Margaritidae. This genus belonged previously to the subfamily Margaritinae in the family Turbinidae. Description This genus consists of small species of varia ...

'' (Philippi, 1851) * ''Trochus ochraceus'' Philippi, 1846: synonym of '' Pomaulax gibberosus'' (Dillwyn, 1817) * ''Trochus ochroleurcus'' ic synonym of ''

'' Gmelin, 1791 * ''Trochus olfersii'' Philippi, 1850: synonym of '' Lithopoma tectum'' ( ightfoot 1786) * ''Trochus olivaceus'' Anton, 1838: synonym of '' Gibbula adriatica'' (Philippi, 1844) * ''Trochus ornatus'' Lamarck, 1822: synonym of ''

Calliostoma ornatum ''Calliostoma ornatum'', common name the ornate topshell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. Description The height of the shell attains 20 mm. The ornate topshell is conical shaped. ...

'' (Lamarck, 1822) * ''Trochus ottoi'' Philippi, 1844: synonym of ''

Calliotropis ottoi ''Calliotropis ottoi'', common name Otto's spiny margarite, is a species of sea snail, a marine gastropod mollusc in the family Eucyclidae. Description The size of the shell varies between 6 mm and 18 mm (1/4 to 3/4-inch). The thin an ...

'' (Philippi, 1844) * ''Trochus pagodus'' Linnaeus, 1758: synonym of '' Tectarius pagodus'' (Linnaeus, 1758) * ''Trochus pallidus'' Hombron & Jacquinot, 1854: synonym of '' Cantharidus purpureus'' (Gmelin, 1791) * ''Trochus papillosum'' Da Costa, 1778: synonym of ''

'' (Born, 1778) * ''Trochus papillosus'' da Costa, 1778: synonym of ''

'' (Born, 1778) * ''Trochus parvulus'' Philippi, 1844: synonym of '' Jujubinus montagui'' (Wood, 1828) * ''Trochus patagonicus'' d'Orbigny, 1835: synonym of ''

Tegula patagonica ''Tegula patagonica'' is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.Rosenberg, G. (2012). ''Tegula patagonica'' (d'Orbigny, 1838). Accessed through: World Register of Marine Species at http://www.marinespecies.org ...

'' (d'Orbigny, 1835) * ''Trochus patholatus'' Dillwyn, 1817: synonym of ''

Gibbula tumida ''Gibbula tumida'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 4 mm and 10 mm. The small, narrowly umbilicate shell has an elevated co ...

'' (Montagu, 1803) * ''Trochus pauperculus'' Lischke, 1872: synonym of ''

Herpetopoma pauperculum ''Herpetopoma pauperculum'' is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae.Bouchet, P. (2012). ''Herpetopoma pauperculum'' (Lischke, 1872). Retrieved through: World Register of Marine Species at http://www ...

'' (Lischke, 1872) * ''Trochus pellucidus'' Valenciennes, 1846: synonym of ''

Calliostoma pellucidum ''Calliostoma pellucidum '' (pellucid top shell) is a species of medium-sized sea snail, a marine gastropod mollusc in the family Calliostomatidae, the calliostoma top snails.WoRMS (2012). Calliostoma pellucidum (Valenciennes, 1846). Accesse ...

'' (Valenciennes, 1846) * ''Trochus pennanti'' Philippi, 1846: synonym of ''

Gibbula pennanti ''Steromphala pennanti'' is a species of small sea snail, a marine gastropod mollusc in the family Trochidae, the top snails.MolluscaBase eds. (2020). MolluscaBase. Steromphala pennanti (Philippi, 1846). Accessed through: World Register of Mari ...

'' (Philippi, 1846) * ''Trochus perlatus'' Gmelin, 1791: synonym of ''Modulus perlatus'' (Gmelin, 1791) represented as ''

'' (Linnaeus, 1758) * ''Trochus perspectiviunculus'' Dillwyn, 1817: synonym of ''

Heliacus variegatus ''Heliacus'' is a genus of gastropods belonging to the family Architectonicidae. The genus has cosmopolitan distribution. Species: *'' Heliacus anaglyptus'' *''Heliacus areola'' *'' Heliacus asteleformis'' *'' Heliacus bisulcatus'' *'' Heli ...

'' (Gmelin, 1791) * ''Trochus perspectivus'' Linnaeus, 1758: synonym of ''

Architectonica perspectiva ''Architectonica perspectiva'', whose common name is the clear or perspective sundial shell, is a species of sea snail, a marine (ocean), marine gastropod mollusk in the family Architectonicidae, which are known as the staircase shells or sundi ...

'' (Linnaeus, 1758) * ''Trochus perversus'' Linnaeus, 1758: synonym of ''

Monophorus perversus ''Monophorus per versus'' is a species of minute sea snail with left-handed shell-coiling, a marine gastropod mollusk or micromollusk in the family Triphoridae.Bouchet, P.; Gofas, S. (2011). ''Monophorus perversus'' (Linnaeus, 1758). Accessed th ...

'' (Linnaeus, 1758) * ''Trochus pharaonius'' Linnaeus, 1758: synonym of '' Clanculus pharaonius'' (Linnaeus, 1758) * ''Trochus phasianellus'' (Deshayes, 1863): synonym of ''

Calliotrochus marmoreus ''Calliotrochus marmoreus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Calliotrochus marmoreus'' (Pease, 1861). Accessed through: World Register of Marine Species at http:/ ...

'' (Pease, 1861) * ''Trochus philberti'' Récluz, 1843: synonym of ''

'' (Récluz, 1843) * ''Trochus philippensis'' R. B. Watson, 1881: synonym of ''

Spectamen philippense ''Spectamen philippense'' is a species of small sea snail, a marine gastropod mollusk in the family Solariellidae. Description The size of the shell attains 8 mm. The shell has a trochiform shape with a broad base, more conical and less sc ...

'' (Watson, 1881) * ''Trochus philippii'' Aradas, 1847: synonym of '' Gibbula cineraria'' (Linnaeus, 1758) * ''Trochus pictus'' W. Wood, 1828: synonym of '' Thalotia conica'' (Gray, 1827) * ''Trochus pictus'' Philippi, 1846: synonym of ''

'' (Forbes, 1844) * ''Trochus pileus'' Lamarck, 1822: synonym of ''

Trochita pileus ''Trochita'' is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails. Species Species within the genus ''Trochita'' include: * '' Troc ...

'' (Lamarck, 1822) * ''Trochus piperinus'' Philippi, 1849: synonym of ''

Diloma piperina ''Austrocochlea piperina'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Marshall, B. (2015). Austrocochlea piperina (Philippi, 1849). In: MolluscaBase (2015). Accessed through: World Register of Ma ...

'' (Philippi, 1849) * ''Trochus planus'' Quoy & Gaimard, 1834: synonym of ''

Bembicium nanum ''Bembicium nanum'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Littorinidae, the winkles or periwinkles. References

Littorinidae Gastropods described in 1822 {{Littorinidae-stub ...

'' (Lamarck, 1822) * ''Trochus polaris'' Philippi, 1846: synonym of '' Margarites costalis'' (Gould, 1841) * ''Trochus ponsonbyi'' G.B. Sowerby, 1888: synonym of ''

Priotrochus obscurus ponsonbyi ''Priotrochus'' is a genus of sea snails, marine gastropod mollusks in the subfamily Cantharidinae of the family Trochidae, the top snails.Bouchet, P. (2012). Priotrochus P. Fischer, 1879. Accessed through: World Register of Marine Species at ...

'' (G. B. Sowerby, 1888) * ''Trochus poupineli'' Montrouzier in Souverbie & Montrouzier, 1875: synonym of '' Calliostoma comptum'' A. Adams, 1855 * ''Trochus prodicta'' Fischer, 1879: synonym of ''

Ethminolia probabilis ''Ethminolia probabilis'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell attains 8 mm. Distribution This marine species occurs off the Philippines and Aust ...

'' Iredale, 1924 * ''Trochus profugus'' de Gregorio, 1889: synonym of '' Danilia tinei'' (Calcara, 1839) * ''Trochus pruninus'' Gould, 1849: synonym of ''

'' (Philippi, 1849) * ''Trochus pulligo'' Gmelin, 1791: synonym of '' Tegula pulligo'' (Gmelin, 1791) * ''Trochus punctulatus'' Martyn, 1784: synonym of ''

'' (Martyn, 1784) * ''Trochus puniceus'' (Philippi, 1846): synonym of '' Clanculus puniceus'' (Philippi, 1846) * ''Trochus purpureus'' Risso, 1826: synonym of '' Clanculus cruciatus'' (Linnaeus, 1758) * * ''Trochus pustulosus'' Philippi, 1849: synonym of ''Trochus calcaratus'' Souverbie in Souverbie & Montrouzier, 1875 * ''Trochus pyramidatus'' Lamarck, 1822: synonym of ''

'' (Pennant, 1777) * ''Trochus quadricarinatus'' Holten, 1802: synonym of ''

'' (Gmelin, 1791) * ''Trochus quadricostatus'' W. Wood, 1828: synonym of ''

Tegula quadricostata ''Tegula quadricostata'' is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.Bouchet, P. (2013). Tegula quadricostata (W. Wood, 1828). Accessed through: World Register of Marine Species at http://www.marinespecies.org ...

'' (W. Wood, 1828) * ''Trochus racketti'' Payraudeau, 1826: synonym of ''

Gibbula racketti ''Gibbula racketti'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Trochidae, the top snails. Description The size of the shell varies between 4 mm and 8 mm. This species form differs from typi ...

'' (Payraudeau, 1826) * ''Trochus radians'' Lamarck, 1816: synonym of ''

Trochita trochiformis ''Trochita trochiformis'' is a species of sea snail, a marine gastropod mollusk in the family Calyptraeidae The Calyptraeidae are a family of small to medium-sized marine prosobranch gastropods. MolluscaBase. Calyptraeidae Lamarck, 1809. Ac ...

'' (Born, 1778) * ''Trochus radiatus'' Anton, 1838: synonym of ''

Phorcus richardi ''Phorcus richardi'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The length of the shell varies between 10 mm and 23 mm. The umbilicate, conoidal shell is olivaceous or ye ...

'' (Payraudeau, 1826) * ''Trochus rarilineatus'' Michaud, 1829: synonym of ''

'' (Michaud, 1829) * ''Trochus reinierius'' Risso, 1826: synonym of ''

'' (Pennant, 1777) * ''Trochus rhina'' Watson, 1886: synonym of ''

Calliotropis rhina ''Solariella rhina'' is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae. Description The shell grows to a length of 10 mm. The shell has a conical shape, with a broad and tumid base and a wide narrowed umbil ...

'' (Watson, 1886) * ''Trochus rhodostomus'' Lamarck, 1822: synonym of ''

Astralium rhodostomum ''Astralium rhodostomum'', common name the rosemouth star shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Description The length of the shell varies between 16 mm and 55 m ...

'' (Lamarck, 1822) * ''Trochus rhysus'' Watson, 1879: synonym of ''

Calliotropis rhysa ''Calliotropis rhysa'' is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae.Bouchet, P.; Rosenberg, G. (2012). ''Calliotropis rhysa'' (Watson, 1879). Retrieved through: World Register of Marine Species at http://www.mar ...

'' (Watson, 1879) * ''Trochus richardi'' (Payraudeau, 1826): synonym of ''

'' (Payraudeau, 1826) * ''Trochus rigatus'' Philippi, 1849: synonym of ''

'' (Lamarck, 1822) * ''Trochus roissyi'' Payraudeau, 1826: synonym of '' Gibbula varia'' (Linnaeus, 1758) * ''Trochus roseolus'' G. Nevill & H. Nevill, 1869: synonym of ''

'' (G. Nevill & H. Nevill, 1869) * ''Trochus roseus'' Salis Marschlins, 1793: synonym of '' Clanculus corallinus'' (Gmelin, 1791) * ''Trochus rostratus'' Gmelin, 1791: synonym of '' Cantharidus purpureus'' (Gmelin, 1791) * ''Trochus rotellina'' Gould, 1849: synonym of ''

Camitia rotellina ''Camitia rotellina'', common name the wheel top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Camitia rotellina'' (Gould, 1849). Accessed through: World Register of Ma ...

'' (Gould, 1849) * ''Trochus rotularius'' Lamarck, 1822: synonym of ''

Astralium rotularium ''Astralium rotularium'', common name the rotary star shell or the knob star shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.Bouchet, P. (2012). ''Astralium rotularium'' (Lamarck, 1822). A ...

'' (Lamarck, 1822) * ''Trochus rubiginosus'' Valenciennes, 1846: synonym of '' Astele rubiginosa'' (Valenciennes, 1846) * ''Trochus rugulosus'' Koch, 1848: synonym of '' Trochus maculatus'' Linnaeus, 1758 * ''Trochus ruscurianus'' Weinkauff, 1868: synonym of ''

Jujubinus ruscurianus ''Jujubinus ruscurianus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 4 mm and 7 mm. Distribution This species occurs in the Atla ...

'' (Weinkauff, 1868) * ''Trochus rusticus'' Gmelin, 1791: synonym of ''

Omphalius rusticus ''Tegula rustica'' is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.MolluscaBase eds. (2022). MolluscaBase. Tegula rustica (Gmelin, 1791). Accessed through: World Register of Marine Species at: https://www.marinespec ...

'' (Gmelin, 1791) * ''Trochus sacellus'' Philippi, R.A., 1854: synonym of '' Trochus calcaratus'' Souverbie in Souverbie & Montrouzier, 1875 * ''Trochus sagittiferus'' Lamarck, 1822: synonym of ''

'' (Koch, 1845) * ''Trochus sandwichiensis'' Souleyet, F.L.A., 1852: synonym of '' Trochus intextus'' Kiener, L.C., 1850 * ''Trochus sarniensis'' Norman, 1888: synonym of '' Gibbula umbilicalis'' (da Costa, 1778) * ''Trochus sauciatus'' Koch, 1845: synonym of ''

'' (Koch, 1845) * ''Trochus saulcyi'' d'Orbigny, 1840: synonym of ''

'' (Koch, 1845) * ''Trochus scaber'' Linnaeus, 1758: synonym of '' Euchelus scaber'' (Linnaeus, 1758) * ''Trochus scabrosus'' Philippi, 1850: synonym of ''

Clanculus scabrosus ''Clanculus scabrosus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Rosenberg, G. (2012). ''Clanculus scabrosus'' (Philippi, 1850). Accessed through: World Register of Marine Species at http ...

'' (Philippi, 1850) * ''Trochus scabrosus'' Jeffreys, 1883: synonym of ''

'' (Calcara, 1842) * ''Trochus schantaricus'' Middendorff, 1849: synonym of '' Margarites schantaricus'' (Middendorff, 1849) * ''Trochus scrobiculatus'' Souverbie & Montrouzier, 1866: synonym of ''

Vaceuchelus clathratus ''Vaceuchelus clathratus'' is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae.Bouchet, P. (2012). ''Vaceuchelus clathratus'' (A. Adams, 1853). Retrieved through: World Register of Marine Species at http://www.mari ...

'' (A. Adams, 1853) * ''Trochus scrobiculatus'' Souverbie, 1886: synonym of ''

Vaceuchelus scrobiculatus ''Vaceuchelus scrobiculatus'' is a species of sea snail, a marine gastropod mollusc in the family Chilodontidae. Description The height of the shell attains 8 mm. The imperforate, dull white shell has an ovate-conic, subventricose shape. ...

'' (Souverbie, 1866) * ''Trochus selectus'' Dillwyn, 1817: synonym of '' Calliostoma selectum'' (Dillwyn, 1817) * ''Trochus semicostatus'' Kiener, 1850: synonym of ''

Astralium semicostatum ''Astralium semicostatum'', common name the half-ribbed star shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.Bouchet, P. (2012). ''Astralium semicostatum'' (P. Fischer, 1875). Accessed ...

'' (Kiener, 1850) * ''Trochus semiglobosus'' Aradas, 1847: synonym of ''

'' (Philippi, 1846) * ''Trochus semistriatus'' d'Orbigny, 1842: synonym of ''

Teinostoma semistriatum ''Teinostoma'' is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Teinostomatidae.Williams S. T., Karube S. & Ozawa T. (September 2008) "Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and ...

'' (d'Orbigny, 1842) * ''Trochus seriatus'' Megerle von Mühlfeld, 1824: synonym of ''

'' (Linnaeus, 1758) * ''Trochus seriopunctatus'' de Blainville, 1830: synonym of ''

'' (Payraudeau, 1826) * ''Trochus shinagawaensis'' Tokunaga, 1906: synonym of '' Calliostoma shinagawaense'' (Tokunaga, 1906) * ''Trochus signatus'' Jonas, 1844: synonym of ''

'' (Wood, 1828) * ''Trochus sinensis'' Gmelin, 1791: synonym of '' Oxystele sinensis'' (Gmelin, 1791) * ''Trochus sismondae'' Issel, 1869: synonym of ''

Peasiella isseli ''Peasiella isseli'' is a species of sea snail, a marine gastropod mollusk in the family Littorinidae The Littorinidae are a Taxonomy (biology), taxonomic family (biology), family of over 200 species of sea snails, marine (ocean), marine gas ...

'' (Semper in Issel, 1869) * ''Trochus smaragdinus'' Monterosato, 1880: synonym of ''

'' (Linnaeus, 1758) * ''Trochus smaragdus'' Reeve, 1862: synonym of '' Trochus maculatus'' Linnaeus, 1758 * ''Trochus smithi'' Wood, 1828: synonym of ''

Monilea smithi ''Monilea smithi'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2014). Monilea smithi (Wood, 1828). Accessed through: World Register of Marine Species at http://www.marinespecies.org/a ...

'' (Wood, 1828) * ''Trochus socius'' Fischer P., 1895: synonym of ''

'' (Pennant, 1777) * ''Trochus solaris'' Linnaeus, 1764: synonym of ''

Stellaria solaris ''Stellaria solaris'', common name the sun carrier shell, is a species of large sea snail, a marine gastropod mollusk in the family Xenophoridae Xenophoridae, commonly called carrier shells, is a family of medium-sized to large sea snails, ...

'' (Linnaeus, 1764) * ''Trochus solaris'' Brocchi, 1814: synonym of ''

Bolma rugosa ''Bolma rugosa'' is a species of large sea snail with a calcareous operculum, a marine gastropod mollusc in the family Turbinidae, the turban snails.Gofas, S. (2014). Bolma rugosa (Linnaeus, 1767). Accessed through: World Register of Marine Spe ...

'' (Linnaeus, 1767) * ''Trochus solidus'' Jonas: synonym of ''

'' Philippi, 1849 * ''Trochus splendidus'' Philippi, 1855: synonym of '' Astele rubiginosa'' (Valenciennes, 1846) * ''Trochus spongiarum'' Bucquoy, Dautzenberg & Dollfus, 1885: synonym of ''

'' (Payraudeau, 1826) * ''Trochus spratti'' Forbes, 1844: synonym of ''

'' (Forbes, 1844) * ''Trochus spurcus'' Gould, 1856: synonym of ''

Gibbula spurca ''Gibbula spurca'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of an adult shell varies between 8 mm and 12 mm. The small, solid shell is globose-conical, scu ...

'' (Gould, 1856) * ''Trochus squamiferus'' Koch, 1844: synonym of ''

Bellastraea squamifera ''Bellastraea squamifera'', the scaly star shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Description The size of the shell varies between 15 mm and 30 mm. Distribution Thi ...

'' (Koch, 1844) * ''Trochus stellaris'' Röding, 1798: synonym of ''

Trochus stellatus ''Trochus stellatus'', common name the stellate trochus, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

'' Gmelin, 1791 * ''Trochus stenomphalus'' G. B. Sowerby III, 1890: synonym of ''Jujubinus suarezensis fultoni'' (G. B. Sowerby III, 1890) † * ''Trochus stramineus'' Gmelin, 1791: synonym of ''

Heliacus (Grandeliacus) stramineus ''Heliacus'' is a genus of gastropods belonging to the family Architectonicidae. The genus has cosmopolitan distribution. Species: *'' Heliacus anaglyptus'' *''Heliacus areola'' *''Heliacus asteleformis'' *''Heliacus bisulcatus'' *''Helia ...

'' (Gmelin, 1791) * ''Trochus striatulus'' Garrett, 1857: synonym of ''

'' (Pease, 1861) * ''Trochus striatus'' (Linnaeus, 1758): synonym of ''

'' (Linnaeus, 1758) * ''Trochus strigosus'' Gmelin, 1791: synonym of '' Gibbula cineraria'' (Linnaeus, 1758) * ''Trochus suavis'' Philippi, 1850: synonym of ''

Pictodiloma suavis ''Pictodiloma suavis'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Bouchet, P. (2012). ''Pictodiloma suavis'' (Philippi, 1850). Accessed through: World Register of Marine Species at http://w ...

'' (Philippi, 1850) * ''Trochus subcarinatus'' (Swainson, 1855): synonym of ''

Astele subcarinata ''Astele subcarinata'', common name the subcarinate top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.Rosenberg, G. (2012). ''Astele subcarinata'' Swainson, 1855. Accessed through: World Register of ...

'' Swainson, 1855 * ''Trochus subviridis'' Philippi, 1848: synonym of ''

'' Reeve, 1861 * ''Trochus succinctus'' Monterosato, 1880: synonym of ''

'' (Salis Marschlins, 1793) * ''Trochus sulcatus'' Gmelin, 1791: synonym of '' Cookia sulcata'' (Lightfoot, 1786) * ''Trochus sulcatus'' Martyn, 1784: synonym of '' Cookia sulcata'' (Lightfoot, 1786) * ''Trochus surgillatus'' Reeve, 1861: synonym of '' Trochus radiatus'' Gmelin, 1791 * ''Trochus suturalis'' Philippi, 1836: synonym of ''

Callumbonella suturalis ''Callumbonella suturalis'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 13 mm and 32 mm. The oblique, umbilicate shell has a depresse ...

'' (Philippi, 1836) * ''Trochus tampaensis'' Conrad, 1846: synonym of ''

Calliostoma tampaense ''Calliostoma tampaense'' is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. Description The shell grows to a height of 24 mm. The shell has a straight conical form, broader than '' Calliostoma jujub ...

'' (Conrad, 1846) * ''Trochus tamsii'' Dunker in Philippi, 1845: synonym of ''

Phorcus atratus ''Phorcus atratus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The height of the shell varies between 17 mm and 24 mm, its diameter between 16 mm and 19 mm. The ...

'' (Wood, 1828) * ''Trochus tantillus'' Gould, 1849: synonym of ''

'' (Gould, 1849) * ''Trochus tectum'' Gmelin, 1791: synonym of ''

Modulus tectum ''Indomodulus tectum'' is a species of small sea snail, a marine gastropod mollusk in the family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinit ...

'' (Gmelin, 1791) * ''Trochus tectumchinense'' Noodt, 1819: synonym of Pomaulax gibberosus (Dillwyn, 1817) * ''Trochus tectus'' Lightfoot, 1786: synonym of '' Lithopoma tectum'' (Lightfoot, 1786) * ''Trochus tenebricus'' Reeve, 1861: synonym of '' Trochus intextus'' Kiener, 1850 * ''Trochus tentoriiformis'' Jonas, 1845: synonym of ''

Astralium tentoriiforme ''Astralium tentoriiforme'' , common name the common tent shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Description The length of the shell varies between 25 mm and 45 m ...

'' (Jonas, 1845) * ''Trochus tentorium'' Gmelin, 1791: synonym of '' Tectus tentorium'' (Gmelin, 1791) * ''Trochus tenuis'' Montagu, 1803: synonym of ''

'' (Born, 1778) * ''Trochus tessulatus'' Born, 1778: synonym of ''

Phorcus turbinatus ''Phorcus turbinatus'', common name the turbinate monodont, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Gofas, S. (2012). ''Phorcus turbinatus'' (Born, 1780). Accessed through: World Register of ...

'' (Born, 1778) * ''Trochus tetragonostoma'' Jordan, 1895: synonym of ''

'' (Philippi, 1836) * ''Trochus textilis'' Reeve, 1861: synonym of ''

'' Reeve, 1861 * ''Trochus texturatus'' Gould, 1849: synonym of '' Cantharidus purpureus'' (Gmelin, 1791) * ''Trochus tiaratus'' Quoy & Gaimard, 1834: synonym of ''

'' (Quoy & Gaimard, 1834) * ''Trochus tiberianus'' Crosse, 1863: synonym of ''

Cantharidella tiberiana ''Cantharidella tiberiana'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Marshall, B. (2013). Cantharidella tiberiana (Crosse, 1863). Accessed through: World Register of Marine Species at http ...

'' (Crosse, 1863) * ''Trochus tigrinus'' Anton, 1838: synonym of ''

Oxystele tigrina ''Oxystele tigrina'', common name the tiger top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of an adult shell varies between 25 mm and 43 mm. The more or l ...

'' (Anton, 1838) * ''Trochus tigris'' Gmelin, 1791: synonym of '' Calliostoma tigris'' (Gmelin, 1791) * ''Trochus tornatus'' Röding, 1798: synonym of ''

Calliostoma tornatum ''Calliostoma tornatum'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class ...

'' (Röding, 1798) * ''Trochus torosus'' Kiener, 1850: synonym of '' Cantharidus purpureus'' (Gmelin, 1791) * ''Trochus torquatus'' Anton in Philippi, 1848: synonym of ''

'' (Valenciennes, 1846) * ''Trochus tranquebaricus'' Röding, 1798: synonym of ''

Calliostoma tranquebaricum ''Calliostoma tranquebaricum'' is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. Description The size of the shell varies between 10 mm and 18.5 mm. The imperforate, solid shell has a conical s ...

'' (Röding, 1798) * ''Trochus tricarinatus'' Lamarck, 1818: synonym of ''

'' (Gmelin, 1791) * ''Trochus tricolor'' Risso, 1826: synonym of ''

'' (Pennant, 1777) * ''Trochus trisulcatus'' Forsskål in Niebuhr, 1775: synonym of '' Terebralia palustris'' (Linnaeus, 1767) * ''Trochus triumphans'' Philippi, 1841: synonym of '' Guildfordia triumphans'' (Philippi, 1841) * ''Trochus tuber'' Linnaeus, 1758: synonym of '' Lithopoma tuber'' (Linnaeus, 1758) * ''Trochus tuberculatus'' da Costa, 1778: synonym of ''

'' (Linnaeus, 1758) * ''Trochus tuberculatus'' Risso, 1826: synonym of ''

'' (Gmelin, 1791) * ''Trochus tuberculosus'' d'Orbigny, 1842: synonym of ''

Parviturbo tuberculosus ''Parviturbo tuberculosus'' is a species of minute sea snail, a marine gastropod mollusk in the family Skeneidae.Bouchet, P. (2013). Parviturbo tuberculosus (d'Orbigny, 1842). Accessed through: World Register of Marine Species at http://www.ma ...

'' (d'Orbigny, 1842) * ''Trochus tubifer'' ic synonym of ''

'' Kiener, 1850 * ''Trochus tumidulus'' Nardo, 1847: synonym of '' Jujubinus montagui'' (Wood, 1828) * ''Trochus tumidulus'' Aradas, 1846: synonym of ''

Jujubinus tumidulus ''Jujubinus tumidulus'' is a species of sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class co ...

'' (Aradas, 1846) * ''Trochus tumidus'' Montagu, 1803: synonym of ''

'' (Montagu, 1803) * ''Trochus turbiformis'' Salis Marschlins, 1793: synonym of '' Phorcus articulatus'' (Lamarck, 1822) * ''Trochus turbinatus'' Born, 1778: synonym of ''

Osilinus turbinatus ''Phorcus turbinatus'', common name the turbinate monodont, is a species of sea snail, a marine gastropod mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as moll ...

'' (Born, 1778) * ''Trochus turbinoides'' Deshayes, 1835: synonym of ''

Gibbula turbinoides ''Gibbula turbinoides'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 4 mm and 10 mm. The globose shell was previously thought to be a s ...

'' (Deshayes, 1835) * ''Trochus umbilicalis'' da Costa, 1778: synonym of '' Gibbula umbilicalis'' (da Costa, 1778) * ''Trochus umbilicaris'' Linnaeus, 1758: synonym of '' Gibbula umbilicaris'' (Linnaeus, 1758) * ''Trochus umbilicatus'' Montagu, 1803: synonym of '' Gibbula umbilicalis'' (da Costa, 1778) * ''Trochus undosus'' W. Wood, 1828: synonym of '' Megastraea undosa'' (W. Wood, 1828) * ''Trochus undulatus'' Risso, 1826: synonym of ''

'' (Gmelin, 1791) * ''Trochus unguis'' W. Wood, 1828: synonym of '' Uvanilla unguis'' (W. Wood, 1828) * ''Trochus unicus'' Dunker, 1860: synonym of '' Calliostoma unicum'' (Dunker, 1860) * ''Trochus unidentatus'' Philippi, 1844: synonym of ''

Jujubinus unidentatus ''Jujubinus unidentatus'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 6 mm and 13 mm. Distribution This species occurs in the Mediter ...

'' (Philippi, 1844) * ''Trochus vaillanti'' P. Fisher, 1882: synonym of ''

Solariella vaillanti ''Calliotropis vaillanti'' is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae. Description The height of the shell attains 8 mm. Distribution This species occurs in the Atlantic Ocean off Portugal, the Azores ...

'' (P. Fischer, 1882) * ''Trochus varians'' O. G. Costa, 1830: synonym of ''

'' (Linnaeus, 1758) * ''Trochus varians'' Deshayes, 1835: synonym of '' Gibbula adriatica'' (Philippi, 1844) * ''Trochus variegatus'' Gmelin, 1791: synonym of ''

Heliacus (Heliacus) variegatus ''Heliacus'' is a genus of gastropods belonging to the family Architectonicidae. The genus has cosmopolitan distribution. Species: *'' Heliacus anaglyptus'' *''Heliacus areola'' *''Heliacus asteleformis'' *''Heliacus bisulcatus'' *''Helia ...

'' (Gmelin, 1791) * ''Trochus varius'' Linnaeus, 1758: synonym of '' Gibbula varia'' (Linnaeus, 1758) * ''Trochus venosus'' Megerle von Mühlfeld, 1816: synonym of ''

'' (Philippi, 1844) * ''Trochus vernus'' Gmelin, J.F., 1791: synonym of '' Trochus maculatus'' Linnaeus, 1758 * ''Trochus verrucosus'' Gmelin, 1791: synonym of '' Trochus maculatus'' Linnaeus, 1758 * ''Trochus vestiarius'' Linnaeus, 1758: synonym of ''

Umbonium vestiarium ''Umbonium vestiarium'', common name the button tops, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The solid, rounded shells are up to 2 cm wide. They are similar to ''Oxystele ...

'' (Linnaeus, 1758) * ''Trochus vieillioti'' (Payraudeau, 1826): synonym of '' Clanculus cruciatus'' (Linnaeus, 1758) * ''Trochus villicus'' Philippi, 1844: synonym of ''

'' (Récluz, 1843) * ''Trochus violaceus'' Risso, 1826: synonym of ''Calliostoma conulum'' (Linnaeus, 1758): synonym of '' Calliostoma conulus'' (Linnaeus, 1758) * ''Trochus virgatus'' Gmelin, 1791: synonym of ''

Tectus virgatus ''Rochia virgata'', common name the striped top shell, is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.MolluscaBase eds. (2022). MolluscaBase. Rochia virgata (Gmelin, 1791). Accessed through: World Register of Ma ...

'' (Gmelin, 1791) * ''Trochus viridis'' Gmelin, 1791: synonym of ''

'' (Gmelin, 1791) * ''Trochus viridulus'' Gmelin, 1791: synonym of '' Tegula viridula'' (Gmelin, 1791) * ''Trochus vividus'' Reeve, 1861 : synonym of '' Trochus radiatus'' Gmelin, 1791 * ''Trochus vulgaris'' Risso, 1826: synonym of ''

'' (Pennant, 1777) * ''Trochus wilsi'' Pickery, 1989: synonym of '' Trochus cariniferus'' Reeve, 1842 * ''Trochus wiseri'' Calcara, 1842: synonym of ''

'' (Calcara, 1842) * ''Trochus yokohamensis'' Bock, 1878: synonym of ''

Kanekotrochus infuscatus ''Kanekotrochus infuscatusis'', common name the dusky jewel top shell, a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails Description The size of the adult shell of this species varies between 7 ...

'' (Gould, 1861) * ''Trochus zelandicus'' Quoy & Gaimard, 1834: synonym of ''

Diloma zelandica ''Diloma zelandicum'' is a species of sea snail, a marine (ocean), marine gastropod mollusc in the family (biology), family Trochidae, the top snails or top shells.Bouchet, P. (2010). Diloma zelandicum(Quoy & Gaimard, 1834). Accessed through: Wor ...

'' (Quoy & Gaimard, 1834) * ''Trochus ziczac'' Gmelin, 1791: synonym of '' Echinolittorina ziczac'' (Gmelin, 1791) * ''Trochus zizyphinus'' Linnaeus, 1758: synonym of '' Calliostoma zizyphinum'' (Linnaeus, 1758) * ''Trochus zonatus'' Jeffreys, 1856: synonym of ''

'' (Born, 1778) * ''Trochus (Collonia) verruca'' Gould, 1845: synonym of ''

Collonista verruca ''Collonista verruca'' is a species of sea snail, a marine gastropod mollusc in the family Colloniidae.MolluscaBase eds. (2021). MolluscaBase. Collonista verruca (Gould, 1845). Accessed through: World Register of Marine Species at: https://www.ma ...

'' (Gould, 1845) ;The following species are

nomina dubia In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a s ...

(names of unknown or doubtful application): * ''Trochus bicinctus'' Philippi, 1849 * ''Trochus quadricinctus'' Mühlfeld, 1824 ;Species inquirenda: * ''Trochus artensis'' P. Fischer, 1878 * ''Trochus fabrei'' Montrouzier in Fischer, 1878 * ''Trochus incarnatus'' Philippi, 1846 * ''Trochus pulchellus'' Philippi, 1846 * ''Trochus reevei'' Montrouzier in Souverbie & Montrouzier, 1866 * ''Trochus rhodomphalus'' Souverbie in Souverbie & Montrouzier, 1875 * ''Trochus saga'' Philippi, 1846 * ''Trochus scrobiculatus'' Souverbie in Souverbie & Montrouzier, 1866 * ''Trochus sublaevis'' Geinitz, 1842 * ''Trochus subviridis'' Philippi, 1848

References

* A. Adams, ''Contributions toward a Monograph of the Trochidae'', in Proc. Zool. Soc, 1851, pp. 150–192. * R- A. Philippi, ''Monograph of Trochus'' in Syst. Conchylien Cabinet, ed. 2 (1846 to about 1856). * Lovell Reeve, In Conchologia Iconica vol. xiii. (1861) (a very incomplete work) * Herbert G.G. (1993). ''Revision of the Trochinae, tribe Trochini (Gastropoda: Trochidae) of southern Africa''. Annals of the natal Museum 34(2):239-308. * Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). ''European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification''. Collection Patrimoines Naturels, 50: pp. 180–213

History

Shell description

Species

Synonyms

References

Further reading