Onchidoris

Onchidoris
A live individual of Onchidoris bilamellata , head end towards the right
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Nudibranchia
Family:	Onchidorididae
Genus:	Onchidoris Blainville, 1816 [1]
Type species
Onchidoris leachiiBlainville, 1816: synonym of Onchidoris bilamellata(Linnaeus, 1767)
Synonyms [2]
AtalodorisIredale O'Donoghue, 1923 LamellidorisAlder & Hancock, 1855 Oicodespina Gistel, 1848 (unnecessary substitute name for Villiersia d'Orbigny, 1837) Onchidorus Blainville, 1816 (incorrect original spelling) ProctaporiaMörch, 1857 Villiersiad'Orbigny, 1837

Onchidoris is a genus of dorid nudibranchs in the family Onchidorididae. ^{[2] [3] [4] [5]} One of its members is known to prey on barnacles and the others eat bryozoans. ^[6] The radula contains a rachidian tooth when fully developed, but this is vestigial in some species. ^[6] A molecular phylogeny study showed that they aren't closely related to some other species of Knoutsodonta within which genus they were formerly placed. ^[7]

Species

Species within the genus Onchidoris include: ^[2]

• Onchidoris aureopuncta (A. E. Verrill, 1901)
• Onchidoris bilamellata (Linnaeus, 1767) - type species
• Onchidoris derjugini (Volodchenko, 1941)
• Onchidoris diademata (Gould, 1870)
• Onchidoris grisea (Gould, 1870)
• Onchidoris hystricina (Bergh, 1878)
• Onchidoris lactea (A. E. Verrill, 1900)
• Onchidoris loveni (Alder & Hancock, 1862)
• Onchidoris macropompa Martynov, Korshunova, Sanamyan & Sanamyan, 2009
• Onchidoris maugeansis (Burn, 1958)
• Onchidoris miniata (A. E. Verrill, 1901)
• Onchidoris muricata (Müller O.F., 1776)
• Onchidoris olgae (Martynov, Korshunova, Sanamyan & Sanamyan, 2009)
• Onchidoris olivacea (A. E. Verrill, 1900)
• Onchidoris perlucea Ortea & Moro, 2014
• Onchidoris proxima (Alder & Hancock, 1854)
• Onchidoris quadrimaculata (A. E. Verrill, 1900)
• Onchidoris slavi (Martynov, Korshunova, Sanamyan & Sanamyan, 2009)
• Onchidoris sparsa (Alder & Hancock, 1846)
• Onchidoris tenella (Gould, 1870)
• Onchidoris tschuktschica (Krause, 1885)

Species brought into synonymy

• Onchidoris albonigra(Pruvot-Fol, 1951): synonym of Knoutsodonta albonigra (Pruvot-Fol, 1951)
• Onchidoris aspera(Alder & Hancock, 1842): synonym of Onchidoris muricata (O. F. Müller, 1776)
• Onchidoris bouvieri(Vayssière, 1919): synonym of Knoutsodonta bouvieri (Vayssière, 1919)
• Onchidoris brasiliensisAlvim, Padula & Pimenta, 2011: synonym of Knoutsodonta brasiliensis (Alvim, Padula & Pimenta, 2011)
• Onchidoris cervinoiOrtea & Urgorri, 1979: synonym of Knoutsodonta cervinoi Ortea & Urgorri, 1979
• Onchidoris depressa(Alder & Hancock, 1842): synonym of Knoutsodonta depressa (Alder & Hancock, 1842)
• Onchidoris fusca(Müller O.F., 1776): synonym of Onchidoris bilamellata (Linnaeus, 1767)
• Onchidoris inconspicua(Alder & Hancock, 1851): synonym of Knoutsodonta inconspicua (Alder & Hancock, 1851)
• Onchidoris leachiiBlainville, 1816 accepted as Onchidoris bilamellata (Linnaeus, 1767)
• Onchidoris luteocincta(M. Sars, 1870): synonym of Diaphorodoris luteocincta (M. Sars, 1870)
• Onchidoris maugeansis(Burn, 1958): synonym of Knoutsodonta maugeansis (Burn, 1958)
• Onchidoris neapolitana(delle Chiaje, 1841): synonym of Knoutsodonta neapolitana (delle Chiaje, 1841)
• Onchidoris oblonga(Alder & Hancock, 1845): synonym of Knoutsodonta oblonga (Alder & Hancock, 1845)
• Onchidoris pusilla(Alder & Hancock, 1845): synonym of Knoutsodonta pusilla (Alder & Hancock, 1845)
• Onchidoris reticulataOrtea, 1979: synonym of Knoutsodonta reticulata Ortea, 1979
• Onchidoris sparsa(Alder & Hancock, 1846): synonym of Knoutsodonta sparsa (Alder & Hancock, 1846)
• Onchidoris tridactilaOrtea & Ballesteros, 1982: synonym of Knoutsodonta tridactila Ortea & Ballesteros, 1982
• Onchidoris tuberculatusHutton, 1873: synonym of Archidoris wellingtonensis(Abraham, 1877): synonym of Doris wellingtonensis Abraham, 1877

Taxonomy

Many authors prefer Onchidorus Blainville, 1816 as the valid name for the genus, changed to Onchidoris (Winckworth, 1932; Bouchet & Tardy, 1976; Thompson & Brown, 1976; Cattaneo & Barletta, 1984). According to Pruvot-Fol (1954) however this latter is a nomen nudum, while the elder synonym Villiersia is a nomen oblitum (see also Abbott, 1974). This is why Odhner (1907), Pruvot-Fol (1954), Swennen (1961) and Abbott (1974) are followed in the use of Lamellidoris Alder & Hancock, 1855. ^[2]

References

1. Blainville H.M.D. de (1816). Quatrième mémoire sur les mollusques, de l'ordre des Cyclobranches. Bulletin des Sciences, par la Société Philomathique de Paris, 1816: 93-97.
2. Bouchet, P.; Gofas, S. (2015). Onchidoris. In: MolluscaBase (2018). Accessed through: World Register of Marine Species on 2018-09-10.
3. Backeljau, T. (1986). Lijst van de recente mariene mollusken van België [List of the recent marine molluscs of Belgium]. Koninklijk Belgisch Instituut voor Natuurwetenschappen: Brussels, Belgium. 106 pp
4. Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN   0-915826-22-4. XII, 195 pp.
5. Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213
6. Thompson, T.E. and Brown, G.H., 1984. Biology of Opisthobranch Molluscs, Volume II. The Ray Society. 229 pages 41 plates, 40 figures, p. 125.
7. Hallas, Joshua M.; Gosliner, Terrence M. (2015-07-01). "Family matters: The first molecular phylogeny of the Onchidorididae Gray, 1827 (Mollusca, Gastropoda, Nudibranchia)". Molecular Phylogenetics and Evolution. 88: 16–27. doi:10.1016/j.ympev.2015.03.015. ISSN   1055-7903.

External links

• SEM images of the radula can be found at Thompson, T.E.; Bebbington, A. (1973). "Scanning electron microscope studies of gastropod radulae". Malacologia . 14: 147–165.