''Onchidella'' 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 ...

of small, air-breathing

sea slug Sea slug is a common name for some Marine biology, marine invertebrates with varying levels of resemblance to terrestrial Slug, slugs. Most creatures known as sea slugs are gastropods, i.e. they are Sea snail, sea snails (marine gastropod moll ...

s, shell-less marine

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 inclu ...

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 ...

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

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 ...

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

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 with valid names are included within the genus ''Onchidella'' :WoRMS : Onchidella; accessed : 30 September 2010
/ref> * ''

Onchidella accrensis ''Onchidella accrensis'' is a species of air-breathing sea slug, a shell-less marine pulmonate gastropod mollusk in the family Onchidiidae. Description This species was first described by Ludwig Hermann Plate in 1893.Plate, L. H. (1893)Studien ...

'' (Plate, 1893) * '' Onchidella armadilla'' (Mörch, 1863) * '' Onchidella binneyi'' Stearns, 1894 * '' Onchidella borealis'' Dall, 1871 - northwest ''Onchidella'' * ''

Onchidella brattstroemi ''Onchidella brattstroemi'' 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 marin ...

'' 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 Austr ...

'' ( 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 ''Onchidella souriei'' 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 (ex ...

'' (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'' (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'' (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