Onchidoris muricata

Onchidoris muricata
Two specimens of the nudibranch Onchidoris muricata with egg spirals, Gulen Dive Resort, Norway.
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia clade Euthyneura clade Nudipleura clade Nudibranchia clade Euctenidiacea clade Doridacea
Superfamily:	Onchidoridoidea
Family:	Onchidorididae
Genus:	Onchidoris
Species:	O. muricata
Binomial name
Onchidoris muricata (O. F. Müller, 1776)[1]
Synonyms[2]
Doris muricata O. F. Müller, 1776 Doris aspera Alder & Hancock, 1842 Doris diaphana Alder & Hancock, 1845 Doris ulidiana Thompson W., 1845 Lamellidoris aspera (Alder & Hancock, 1842) Lamellidoris diaphana (Alder & Hancock, 1845) Lamellidoris muricata (O. F. Müller, 1776) Onchidoris aspera (Alder & Hancock, 1842)

Onchidoris muricata is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Onchidorididae.^[2]

Colour plate from Alder & Hancock Monograph, 1845-55, figs 1-9.^[3]

Distribution

This species was described from Norway. It is currently known from the European coasts of the North Atlantic Ocean as far south as the British Isles and the north-west Atlantic as far south as Maine.^[4][5] It is reported from the north-east Pacific Ocean coasts of North America from Friday Harbor, Washington south to Lion Rock, San Luis Obispo County, California.^[6]

References

1. Müller, Otto Frederik (1776) Zoologiae Danicae. Prodromus seu animalium Daniae et Norvegiae ingenarum characteres, nomina, et synonyma imprimis popularium, xxxii + 282 pp.
2. Rosenberg, G.; Gofas, S. (2015). Onchidoris muricata (O. F. Müller, 1776). In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2016-01-15.
3. Alder J. & Hancock A. (1845-1855). A monograph of the British nudibranchiate Mollusca: with figures of all the species. The Ray Society, London. Published in 8 parts:Part 6. Fam.1 Plate 9 [1854].
4. Picton, B.E. & Morrow, C.C. (2015). Onchidoris muricata Muller, 1776. [In] Encyclopedia of Marine Life of Britain and Ireland. Accessed on 2016-01-15.
5. Rudman, W.B., 2001 (July 3) Onchidoris muricata Muller, 1776. [In] Sea Slug Forum. Australian Museum, Sydney.
6. Behrens, D. W., & Hermosillo, A. (2005) Eastern Pacific nudibranchs, a guide to the opisthobranchs from Alaska to Central America. vi + 137 pp., 314 photos. Sea Challengers, Monterey, California, page 59.