''Phorcus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

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 ...

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 ...

mollusk 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 e ...

s in the subfamily

Cantharidinae The Cantharidinae are a taxonomic subfamily of very small to large sea snails, marine gastropod molluscs in the family Trochidae, common name top snails.Bouchet, P.; Gofas, S. (2011). Cantharidinae. Accessed through: World Register of Marine Spec ...

of the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Trochidae The Trochidae, common name top-snails or top-shells, are a family of various sized sea snails, marine gastropod molluscs in the subclass Vetigastropoda. This family is commonly known as the top-snails because in many species the shell resembles ...

, the top snails.

Distribution

These marine species are algal grazers in the northeastern

Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...

and

Mediterranean Sea The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the ea ...

Species

Species within the genus ''Phorcus'' include: * ''

Phorcus articulatus ''Phorcus articulatus'' is a species of sea snail, a marine (ocean), marine gastropod mollusk in the family (biology), family Trochidae, the top snails.Gofas, S. (2012). ''Phorcus articulatus'' (Lamarck, 1822). Accessed through: World Register o ...

'' ( Lamarck, 1822) * ''

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) * † ''

Phorcus burgadoi ''Phorcus'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the subfamily Cantharidinae of the family (biology), family Trochidae, the top snails. Distribution These marine species are algal grazers in the northeastern A ...

'' Martín-González, 2018 * † ''

Phorcus gallicophorcus ''Phorcus'' is a genus of sea snails, marine gastropod mollusks in the subfamily Cantharidinae of the family Trochidae, the top snails. Distribution These marine species are algal grazers in the northeastern Atlantic Ocean and Mediterranean Se ...

'' Landau, Van Dingenen & Ceulemans, 2017 * ''

Phorcus 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 of Mar ...

'' (da Costa, 1778) * ''

Phorcus mariae ''Phorcus mariae'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Gofas, S. (2012). ''Phorcus mariae'' Templado & Rolán, 2012. Accessed through: World Register of Marine Species The World Regist ...

'' Templado & Rolán, 2012 * ''

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) * ''

Phorcus punctulatus ''Phorcus punctulatus'', common name the punctate monodont, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Gofas, S. (2012). ''Phorcus punctulatus'' (Lamarck, 1822). Accessed through: World Register ...

'' ( Lamarck, 1822) * ''

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) * ''

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) * ''

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, 1780) ;Species brought into synonymy: * ''Phorcus margaritaceus'' Risso, 1826: synonym of ''Phorcus richardi'' (Payraudeau, 1826) * ''Phorcus semigranosus'' A. Adams, 1851: synonym of ''

Chlorostoma semigranosum ''Chlorostoma'' is a genus of sea snails, marine gastropod mollusks in the family Tegulidae.Bouchet, P. (2013). Chlorostoma Swainson, 1840. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails& ...

'' A. Adams, 1851

References

* Nordsieck, F. (1974). Il genere Osilinus Philippi, 1847 nei mari europei. La Conchiglia. 67-68: 21-23. * Vaught, K.C. (1989). ''A classification of the living Mollusca''. American Malacologists: Melbourne, FL (USA). . XII, 195 pp * 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 * Donald K.M., Preston J., Williams S.T., Reid D.R., Winter D., Alvarez R., Buge B., Hawkins S.J., Templado J. & Spencer H.G. 2012. ''Phylogenetic relationships elucidate colonization patterns in the intertidal grazers Osilinus Philippi, 1847 and Phorcus Risso, 1826 (Gastropoda: Trochidae) in the northeastern Atlantic Ocean and Mediterranean Sea''. Molecular Phylogenetics and Evolution, 62(1): 35–45

External links

Risso A. (1826-1827). Histoire naturelle des principales productions de l'Europe Méridionale et particulièrement de celles des environs de Nice et des Alpes Maritimes. Paris, Levrault: Vol. 1: XII + 448 + 1 carta [1826]. Vol. 2: VII + 482 + 8 pl. (fiori) [novembre 1827]. Vol. 3: XVI + 480 + 14 pl. (pesci) [settembre 1827]. Vol. 4: IV + 439 + 12 pl. (molluschi) [novembre 1826]. Vol. 5: VIII + 400 + 10 pl.

Philippi, R. A. (1847). Versuch einer systematischen Eintheilung des Geschlechtes Trochus. Zeitschrift für Malakozoologie. 4: 3-11, 17-26

Monterosato T. A. (di) (1884). ''Nomenclatura generica e specifica di alcune conchiglie mediterranee''. Palermo, Virzi, 152 pp.

Mörch, O. A. L. (1852-1853). Catalogus conchyliorum quae reliquit D. Alphonso d'Aguirra & Gadea Comes de Yoldi, Regis Daniae Cubiculariorum Princeps, Ordinis Dannebrogici in Prima Classe & Ordinis Caroli Tertii Eques. Fasc. 1, Cephalophora, 170 pp.

Bucquoy E., Dautzenberg P. & Dollfus G. (1882-1886). Les mollusques marins du Roussillon. Tome Ier. Gastropodes. Paris: Baillière & fils. 570 pp., 66 pls.
Trochidae Gastropod genera Taxa named by Antoine Risso {{Trochidae-stub