''Perrinia'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

s, marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Chilodontaidae Chilodontaidae is a taxonomic family of mostly small deepwater sea snails, marine gastropod molluscs in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Taxonomy The family was previously in ...

. This genus has a long time been regarded as a subgenus of ''

Turcica ''Turcica'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family (biology), family Eucyclidae. Kano et al. (2009) have argued that ''Turcica'' belongs in the family Calliotropidae. Description The thin, subdiaphano ...

'' H. & A. Adams, 1854. Previously it was considered a (problematic) subgenus of ''

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

'' Philippi, 1847.

Description

The imperforate shell is small (less than 20 mm) and has a trochiform shape. The

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). In nature File:Photograph and axial plane floral diagra ...

s are flattened and cancellated with a strongly indented suture. The

aperture In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...

is quadrangular. The outer

lip The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. Mammal lips are soft, movable and serve to facilitate the ingestion of food (e.g. sucklin ...

is lirate (= with fine linear elevations) within. The

columella Lucius Junius Moderatus Columella (, Arabic: ) was a prominent Roman writer on agriculture in the Roman Empire. His in twelve volumes has been completely preserved and forms an important source on Roman agriculture and ancient Roman cuisin ...

is short, nearly straight, with several tubercles near the base.Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
/ref>

Species

According to the

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

(WoRMS) the following species are included within the genus ''Perrinia'' : * ''

Perrinia angulifera ''Perrinia angulifera'' is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae.Bouchet, P. (2012). ''Perrinia angulifera'' (A. Adams, 1853). Retrieved through: World Register of Marine Species at http://www.marinespe ...

'' A. Adams, 1853 * ''

Perrinia cantharidoides ''Perrinia'' is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae. This genus has a long time been regarded as a subgenus of ''Turcica'' H. & A. Adams, 1854. Previously it was considered a (problematic) subgenus of ' ...

'' Vilvens, 2017 * ''

Perrinia chinensis ''Perrinia'' is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae. This genus has a long time been regarded as a subgenus of ''Turcica'' H. & A. Adams, 1854. Previously it was considered a (problematic) subgenus of ' ...

'' (G. B. Sowerby III, 1889) * ''

Perrinia concinna ''Perrinia concinna'' is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae.Bouchet, P. (2012). ''Perrinia concinna'' (A. Adams, 1864). Retrieved through: World Register of Marine Species at http://www.marinespeci ...

'' (A. Adams, 1864-f) * ''

Perrinia docili ''Perrinia docili'' is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae. Description The size of the shell varies between 4.3 mm and 5.7 mm. Distribution This marine species occurs off the Philippines ...

'' Poppe, Tagaro & Dekker, 2006 * ''

Perrinia elisa ''Perrinia elisa'' is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae.Bouchet, P. (2012). ''Perrinia elisa'' (Gould, 1849). Retrieved through: World Register of Marine Species at http://www.marinespecies.org/aphi ...

'' (Gould, 1849) * ''

Perrinia guadalcanalensis ''Perrinia'' is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae. This genus has a long time been regarded as a subgenus of ''Turcica'' H. & A. Adams, 1854. Previously it was considered a (problematic) subgenus of ' ...

'' Vilvens, 2017 * ''

Perrinia konos ''Perrinia konos'' is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae.Bouchet, P. (2012). ''Perrinia konos'' (Barnard, 1964). Retrieved through: World Register of Marine Species at http://www.marinespecies.org/ap ...

'' (Barnard, 1964) * ''

Perrinia morrisoni ''Perrinia'' is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae. This genus has a long time been regarded as a subgenus of ''Turcica'' H. & A. Adams, 1854. Previously it was considered a (problematic) subgenus of ' ...

'' (Ladd, 1966) * ''

Perrinia nigromaculata ''Perrinia nigromaculata'' is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae.Bouchet, P. (2012). ''Perrinia nigromaculata'' (Schepman, 1908). Retrieved through: World Register of Marine Species at http://www.mar ...

'' (Schepman, 1908) * ''

Perrinia squamicarinata ''Perrinia squamicarinata'' is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae.Bouchet, P. (2012). ''Perrinia squamicarinata'' (Schepman, 1908). Retrieved through: World Register of Marine Species at http://www.m ...

'' (Schepman, 1908) * ''

Perrinia stellata ''Perrinia stellata'' is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae . Description The shell size varies between 9 mm to 17 mm Distribution This species is distributed in the Red Sea The Re ...

'' (A. Adams, 1864) ;Species brought into synonymy: * ''Perrinia cancellata'' (

Schepman Mattheus Marinus Schepman (17 August 1847 – 19 November 1919) was a Dutch malacologist. He was one of the foremost collectors of mollusc shells in the Netherlands, and was also high on the overall list of European collectors. Dutch collectors ...

, 1908): synonym of '' Clypeostoma cancellatum'' (Schepman, 1908) * ''Perrinia cecileae'' Poppe, Tagaro & Dekker, 2006: synonym of '' Clypeostoma cecileae'' (Poppe, Tagaro & Dekker, 2006) (original combination) * ''Perrinia plicifera'' (Schepman, 1908): synonym of ''

'' (A. Adams, 1853)

References

External links

Adams, H. & Adams, A. (1853-1858). The genera of Recent Mollusca; arranged according to their organization. London, van Voorst. Vol. 1: xl + 484 pp.; vol. 2: 661 pp.; vol. 3: 138 pls.

Herbert D.G. (2012) A revision of the Chilodontidae (Gastropoda: Vetigastropoda: Seguenzioidea) of southern Africa and the south-western Indian Ocean. African Invertebrates, 53(2): 381–502
{{Taxonbar, from=Q7169644 Chilodontaidae Gastropod genera