''Onchidella'' 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 ...

of small, air-breathing

sea slug Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are gastropods, i.e. they are sea snails (marine gastropod mollusks) that over evolutionary t ...

s, shell-less

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 * ...

pulmonate Pulmonata or pulmonates, is an informal group (previously an order, and before that a subclass) of snails and slugs characterized by the ability to breathe air, by virtue of having a pallial lung instead of a gill, or gills. The group includ ...

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 ...

mollusc 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 esti ...

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 ...

Onchidiidae Onchidiidae are a family of small, air-breathing sea (and land) slugs. They are shell-less marine (except for 2 species)preview pulmonate gastropod molluscs. Onchidiidae is the only family within the superfamily Onchidioidea. These animals are ...

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 list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialist ...

(WoRMS), the following species with valid names are included within the genus ''Onchidella'' :WoRMS : Onchidella; accessed : 30 September 2010
/ref> * '' Onchidella accrensis'' (Plate, 1893) * '' Onchidella armadilla'' (Mörch, 1863) * '' Onchidella binneyi'' Stearns, 1894 * '' Onchidella borealis'' Dall, 1871 - northwest ''Onchidella'' * '' Onchidella brattstroemi'' Ev. Marcus, 1978 * '' Onchidella campbelli'' Filhol, 1880 * '' Onchidella carpenteri'' (W. G. Binney, 1860) (nomen dubium) * '' Onchidella celtica'' (Cuvier, 1817) * '' Onchidella flavescens'' Wissel, 1904 * '' Onchidella floridana'' ( Dall, 1885) - Florida ''Onchidella'' * '' Onchidella incisa'' (Quoy & Gaimard, 1832) * '' Onchidella indolens'' (Couthouy in Gould, 1852) * '' Onchidella kurodai'' (Taki, 1935) * '' Onchidella maculata'' (Plate, 1893) * '' Onchidella marginata'' (Couthouy in Gould, 1852) * '' Onchidella miusha'' Ev. Marcus, 1978 * '' Onchidella monodi'' (Gabe, Prenant & Sourie, 1951) * ''

Onchidella nigricans ''Onchidella nigricans'' is a species of small, air-breathing sea slug, a shell-less marine pulmonate gastropod mollusc in the family Onchidiidae. Distribution This species occurs in New Zealand, as well as on the coast of south-eastern A ...

'' ( Quoy &

Gaimard Joseph Paul Gaimard (31 January 1793 – 10 December 1858) was a French naval surgeon and naturalist. Biography Gaimard was born at Saint-Zacharie on January 31, 1793. He studied medicine at the naval medical school in Toulon, subsequent ...

, 1832) * '' Onchidella oniscioides'' (Blainville, 1816) * '' Onchidella orientalis'' (Taki, 1935) * '' Onchidella pachyderma'' (Plate, 1893) * '' Onchidella philippei'' Ev. Marcus, 1979 * '' Onchidella reticulata'' (Semper, 1885) * '' Onchidella souriei'' (Gabe & Prenant, 1955) * '' Onchidella steindachneri'' (J. O. Semper, 1882) - Galapagos Islands * '' Onchidella wah'' Ev. Marcus, 1978 ;Synonymized species : * ''Onchidella capensis'' - South Africa : synonym of ''Onchidella maculata'' (Plate, 1893) * ''Onchidella chilensis'' (Huppé in Gay, 1854) accepted as Checked: verified by a taxonomic editorOnchidella marginata (Couthouy in Gould, 1852) * ''Onchidella condoriana'' Rochebrune, 1882 : synonym of ''

Oncis stuxbergi ''Onchidium stuxbergi'' is a species of air-breathing sea slug, a shell-less brackish water pulmonate gastropod mollusk in the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or ...

'' (Westerlund, 1883) * ''Onchidella griseofusca'' Tapparone-Canefri, 1874 accepted as '' Onchidium griseofuscum'' (Tapparone-Canefri, 1874) * ''Onchidella griseo-fusca'' Tapparone Canefri, 1874 accepted as Unreviewed: has not been verified by a taxonomic editorOnchidium griseofuscum (Tapparone Canefri, 1874) * ''Onchidella hardwickii'' Gray, 1850 accepted as '' Onchidium hardwickii'' (Gray, 1850) * ''Onchidella hildae'' (Hoffmann, 1928): synonym of '' Onchidella binneyi'' Stearns, 1894 * ''Onchidella irrorata'' (Gould, 1852) accepted as ''Onchidella nigricans'' (Quoy & Gaimard, 1832) * ''Onchidella juanfernandeziana'' (Wissel, 1898) accepted as ''Onchidella marginata'' (Couthouy in Gould, 1852) * ''Onchidella nigra'' Gray, 1850 accepted as ''

Scaphis atra ''Scaphis atra'' is a species of air-breathing sea slug, a shell-less marine pulmonate gastropod mollusk in the family Onchidiidae Onchidiidae are a family of small, air-breathing sea (and land) slugs. They are shell-less marine (except ...

'' (Lesson, 1830) * ''Onchidella obscura'' (Plate, 1893) accepted as ''Onchidella nigricans'' (Quoy & Gaimard, 1832) * ''Onchidella patelloida'' (Quoy & Gaimard, 1832) accepted as ''Onchidella nigricans'' (Quoy & Gaimard, 1832) * ''Onchidella patelloides'' ( Quoy &

, 1832) : synonym of ''Onchidella nigricans'' (Quoy & Gaimard, 1832) * ''Onchidella pulchella'' Watson, 1925 accepted as ''Onchidella maculata'' (Plate, 1893) * ''Onchidella reevesii'' Reeve in J.E. Gray, 1850 accepted as '' Paraoncidium reevesii'' (Reeve in J.E. Gray, 1850) * ''Onchidella remanei'' Er. Marcus & Ev. Marcus, 1956 accepted as ''Onchidella celtica'' (Cuvier, 1817)

References

* * G M Branch, C L Griffiths, M L Branch, & L E Beckley, ''Two Oceans, A Guide to the Marine Life of Southern Africa'', David Philip Publishers (Pty) Ltd, Claremont, South Africa 1994 * Powell A. W. B., ''New Zealand Mollusca'', William Collins Publishers Ltd, Auckland, New Zealand 1979
Onchidella celtica
* Dayrat, B. (2009) ''Review of the current knowledge of the systematics of Onchidiidae (Mollusca: Gastropoda: Pulmonata) with a checklist of nominal species''. Zootaxa 2068: 1–26 Onchidiidae Gastropod genera Taxa named by John Edward Gray {{Onchidiidae-stub