''Peristichia'' 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

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 ...

Pyramidellidae Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs. The great majority of species of pyrams are micromol ...

, the pyrams and their allies.WoRMS (2010). ''Peristichia''. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. 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=415795 on 31 January 2012

Taxonomy

In his original paper, Dall proposed ''Peristichia'' as a genus of dubious affinities and placed it later in the family Pyramidellidae. Paul Bartsch, his collaborator, later thought it was a subgenus of ''

Turbonilla ''Turbonilla'' is a large genus of ectoparasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.Bouchet, P.; Gofas, S. (2011). ''Turbonilla'' Risso, 1826. Accessed through: World Register of Mari ...

''.P. Bartsch (1904), Proc. Biol. Soc. Washington, vol. 17. p. 9

Johannes Thiele Johannes Thiele may refer to: *Johannes Thiele (zoologist) *Johannes Thiele (chemist) {{hndis, Thiele, Johannes ...

does not even mention this genus in his ''Handbuch der Systematischen Weichtierkunde''. (1929).

Wilhelm August Wenz Wilhelm August Wenz (21 October 1886 – 12 September 1945) was a German malacologist, born in Frankfurt am Main. He is the author of the 7-part Gastropoda section of ''Handbuch der Paläozoologie'' (1938-1944), a very important review that d ...

in his ''Handbuch der Paläozoologie, Band 6, Gastropoda'', also thought it was probably a subgenus of ''Turbonilla'', but added a question mark. However, a close examination shows that it belongs in the family Pyramidellidae, close to '' Tryptichus'' Mörch, 1875, differing from it only in having one (instead of two) basal central spiral cords and having no columellar fold.

Species

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

Peristichia agria ''Peristichia agria'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Peristichia agria'' Dall, 1889. Accessed through: World Register of Marine Species at ...

'' Dall, 1889 * ''

Peristichia bathyraphe ''Peristichia bathyraphe'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Peristichia bathyraphe'' (Sowerby I, 1901). Accessed through: World Register of M ...

'' (G.B. Sowerby I, 1901) * ''

Peristichia hermosa ''Peristichia hermosa'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.WoRMS (2011). ''Peristichia hermosa'' (Lowe, 1935). Accessed through: World Register of Marine Species Th ...

'' (Lowe, 1935) * ''

Peristichia lepta ''Peristichia lepta'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.WoRMS (2010). ''Peristichia lepta'' Pimenta, Santos & Absalao, 2008. In: Bouchet, P.; Gofas, S.; Rosenberg, G. ...

'' Pimenta, Santos & Absalao, 2008 * ''

Peristichia pedroana ''Peristichia pedroana'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Peristichia pedroana'' (Dall & Bartsch, 1909). Accessed through: World Register of ...

'' (Dall & Bartsch, 1909) * ''

Peristichia pliocena ''Peristichia pliocena'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.WoRMS (2010). ''Peristichia pliocena'' (Bartsch, 1955). Accessed through: World Register of Marine Species ...

'' (Bartsch, 1955) * ''

Peristichia toreta ''Peristichia toreta'', common name the tower pyram, is a species of small sea snail, a marine (ocean), marine gastropod mollusc in the family (biology), family Pyramidellidae, the pyrams and their allies.Rosenberg, G. (2011). ''Peristichia toret ...

'' Dall, 1889

References

External links

ITIS

World Register of Marine Species

Dall, W.H. (1889). Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U.S. Coast Survey Steamer "Blake", Lieut.-Commander C.D. Sigsbee, U.S.N., and Commander J.R. Bartlett, U.S.N., commanding. XXIX. Report on the Mollusca. Part 2, Gastropoda and Scaphopoda. Bulletin of the Museum of Comparative Zoölogy at Harvard College. 18: 1-492, pls. 10-40
{{Taxonbar, from=Q3138148 Pyramidellidae