''Jorunna'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

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 ...

s, dorid

nudibranch Nudibranchs () are a group of soft-bodied marine gastropod molluscs which shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to mat ...

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 * ...

gastropod molluscs in the family

Discodorididae Discodorididae is a taxonomic family of sea slugs, specifically dorid nudibranchs, marine gastropod mollusks in the superfamily Doridoidea.Bouchet, P. (2011). Discodorididae. Accessed through: World Register of Marine Species at http://www.ma ...

Biology

''Jorunna'' species are usually camouflaged to match the sponges they feed on, which in many cases belong to the family

Chalinidae Chalinidae is a family of marine demosponge Demosponges (Demospongiae) are the most diverse class in the phylum Porifera. They include 76.2% of all species of sponges with nearly 8,800 species worldwide (World Porifera Database). They a ...

. It is likely that many undescribed species exist.Rudman, W.B., 1999 (January 6
''Jorunna pantherina'' (Angas, 1864).
n/nowiki> Sea Slug Forum. Australian Museum, Sydney.

Species

There are more than 20 species in genus ''Jorunna''.Camacho-Garcia, Y. E. and T. M. Gosliner. (2008)
Systematic revision of ''Jorunna'' Bergh, 1876 (Nudibranchia: Discodorididae) with a morphological phylogenetic analysis.
''Journal of Molluscan Studies'' 74(2) 143. ;Species brought into synonymy: * ''Jorunna johnstoni'' (Alder & Hancock, 1845): synonym of ''Jorunna tomentosa'' (Cuvier, 1804) - type species of the genus ''Jorunna'' * ''Jorunna lemchei'' Ev. Marcus, 1976 : synonym of ''

Gargamella lemchei ''Gargamella lemchei'' is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Discodorididae.Bouchet, P. (2015). Gargamella lemchei (Ev. Marcus, 1976). In: MolluscaBase (2015). Accessed through: World ...

'' (Ev. Marcus, 1976) * ''Jorunna luisae'' Ev. Marcus, 1976: synonym of ''

Jorunna evansi ''Jorunna evansi'' is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollu ...

'' (Eliot, 1906) * ''Jorunna malcolmi'' Ev. Marcus, 1976: synonym of ''Jorunna labialis'' (Eliot, 1908) * ''Jorunna marchadi'' Risbec, 1956: synonym of ''

Asteronotus cespitosus ''Asteronotus cespitosus'' is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Discodorididae.Bouchet, P. (2016)''Asteronotus cespitosus'' (van Hasselt, 1824).In: MolluscaBase (2015). Accessed through: World R ...

'' van Hasselt, 1824 * ''Jorunna zania'' Ev. Marcus, 1976: synonym of ''Jorunna funebris'' (Kelaart, 1859) File:Jorunna Funebris, Shark Island, Ko Tao, Thailand (4571139196).jpg, ''

Jorunna funebris ''Jorunna funebris'', commonly called the dotted nudibranch, is a large species of sea slug. It is a dorid nudibranch, meaning it is a shell-less marine gastropod mollusc in the family Discodorididae.Bouchet, P. (2010)''Jorunna funebris'' (Kela ...

'' File:Jorunna rubescens.jpg, '' Jorunna rubescens'' File:BEP2 1174-1.jpg, ''

Jorunna tomentosa ''Jorunna tomentosa'' is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Discodorididae.Gofas, S. (2011)''Jorunna tomentosa'' (Cuvier, 1804).Accessed through: World Register of Marine Species on 20 ...

'' File:Jorunna_sp-Mauve_jorunna.JPG, ''

Jorunna sp-Mauve Jorunna ''Jorunna'' is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod molluscs in the family Discodorididae. Biology ''Jorunna'' species are usually camouflaged to match the sponges they feed on, which in many cases belong to the ...

References

* Valdés Á. (2002). ''A phylogenetic analysis and systematic revision of the cryptobranch dorids (Mollusca, Nudibranchia, Anthobranchia).'' Zoological Journal of the Linnean Society. 136: 535-636 {{Taxonbar, from=Q590796 Discodorididae