''Jujubinus suarezensis'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

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 ...

, a

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 ...

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 (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.Rosenberg, G. (2012). ''Jujubinus suarezensis'' (P. Fischer, 1878). Accessed through:

World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialist ...

at http://www.marinespecies.org/aphia.php?p=taxdetails&id=605511 on 2012-11-23 ;Subspecies: * † ''Jujubinus suarezensis fultoni'' (G. B. Sowerby III, 1890) (synonyms: ''Calliostoma stenomphalum'' (G. B. Sowerby III, 1890), ''Cantharidus fultoni'' (G. B. Sowerby III, 1890) †, ''Cantharidus suarezensis fultoni'' (G. B. Sowerby III, 1890) †, ''Trochus (Calliostoma) fultoni'' G. B. Sowerby III, 1890 † (basionym), ''Trochus fultoni'' G. B. Sowerby III, 1890 † (original combination), ''Trochus stenomphalus'' G. B. Sowerby III, 1890 (junior synonym) ) * ''Jujubinus suarezensis suarezensis'' (P. Fischer, 1878) (synonym: ''Cantharidus suarezensis suarezensis'' (P. Fischer, 1878) )

Description

The size of the shell varies between 10 mm and 18 mm, the diameter is up to 13 mm. The narrowly perforate shell has a conic-acute shape. The 9 to 10

whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral ...

s are planulate. The embryonic whorls are smooth, buff, the remaining whitish-buff. The whorls are ornamented with longitudinal wavy streaks of brown or rosy, and sometimes spiral zones. They are spirally lirate with 7 lirae on the penultimate whorl, upper and lower ones most prominent, the intermediate 5 slightly granose. The interstices are sharply obliquely striate. The

body whorl The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk. In gastropods In gastropods, the b ...

is angular, convex beneath and contains about 8 concentric lirae. The

aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An opt ...

subquadrate. The lip is acute. The columella is subtruncate. The parietal wall bears a callus in adults.Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
(described as ''Cantharidus suarezensis'')

Distribution

This marine species occurs in the following locations: *

Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...

References

* Fischer, P., 1878. Diagnoses Trochorum novorum. Journal de Conchyliologie 26: 62-67 * Fischer P. , 1880 Spécies général et iconographie des coquilles vivantes, comprenant la Collection du Muséum d'Histoire naturelle de Paris, la collection Lamarck, celle du Prince Masséna (appartenant maintenant à M. B. Delessert) et les découvertes récentes des voyageurs par L.-C. Kiener continué par le docteur P. Fischer. Genres Calcar, Trochus, Xenophora, Tectarius et Risella, p. 717 pp, 120 pls * Dautzenberg, Ph. (1929). ''Contribution à l'étude de la faune de Madagascar: Mollusca marina testacea''. Faune des colonies françaises, III(fasc. 4). Société d'Editions géographiques, maritimes et coloniales: Paris. 321–636, plates IV-VII pp.

External links

World Register of Marine Species

R.N. Kilburn (1975), Pleistocene Molluscs from the West and South Coasts of the Cape Province, South Africa
* {{Taxonbar, from=Q6305368 suarezensis Gastropods described in 1878