''Prisogaster'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of sea snails,

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

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 es ...

s in the subfamily Prisogasterinae of the

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

Turbinidae Turbinidae, the turban snails, are a family of small to large marine gastropod molluscs in the superfamily Trochoidea.Bouchet, P. (2014). Turbinidae Rafinesque, 1815. Accessed through: World Register of Marine Species at http://www.marinespec ...

, the turban snails.

Description

"The very solid, imperforate shell has an ovate or subglobular shape. It is dark colored. The large

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 ...

is oblique. The inner surface of the operculum is yellow, subconcave, with a submarginal, basal nucleus. Its outer surface is very convex."

Radula The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food ...

: "The median tooth has a very wide body, and supporting wings. The cusp narrowly reflects along the whole upper margin of the tooth. The laterals show prominent cusps, their bases are denticulate. The inner marginals are not enlarged, but rather narrow, with long simple cusps. The outer marginals show long serrate cusps. In the denticulate cusps of the lateral teeth, and the narrow inner marginals this form approaches more closely than any other to ''

Leptothyra ''Leptothyra'' is a genus of sea snails, marine gastropod mollusks in the family Colloniidae. This genus was previously placed in the family Turbinidae. The name ''Leptothyra'' is generally attributed to Pease (1869), and the name "Leptothyra ...

''. "

Species

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

Prisogaster elevatus ''Prisogaster elevatus'' is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.Bouchet, P. (2012). ''Prisogaster elevatus'' (Eydoux & Souleyet, 1852). Accessed through: World Register of Marine Spe ...

'' (Eydoux & Souleyet, 1852) * ''

Prisogaster niger ''Prisogaster niger'' 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 10 mm and 35 mm. The very solid, imperforate shell has an ovate shape ...

'' (Wood, 1828)

References

* Alf A. & Kreipl K. (2011) ''The family Turbinidae. Subfamilies Turbininae Rafinesque, 1815 and Prisogasterinae Hickman & McLean, 1990''. In: G.T. Poppe & K. Groh (eds), A Conchological Iconography. Hackenheim: Conchbooks. pp. 1–82, pls 104-245

External links

Mörch, O. A. L. (1850). Catalogus conchyliorum quae reliquit C.P. Kierulf, MD, DR, nunc publica auctione X decembris MDCCCL Hafniae dividenda / scripsit O. A. L. Mörch; c. tab. II lithogr.. Hafniae, Typis Trieri. 33 pp., 2 pls

Williams, S.T. (2007). ''Origins and diversification of Indo-West Pacific marine fauna: evolutionary history and biogeography of turban shells (Gastropoda, Turbinidae).'' Biological Journal of the Linnean Society, 2007, 92, 573–592
{{Taxonbar, from=Q7245714 Turbinidae Gastropod genera