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''Rostanga'' 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 ...
of
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 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 ...
. Some sources, such as ''The Sea Slug Forum'' still classify ''Rostanga'' in the family
Dorididae Sea lemon is a loosely applied common name for a group of medium-sized to large shell-less colorful sea slugs or nudibranchs, specifically dorid nudibranchs in the taxonomic family Dorididae and other closely related families. These are marine ...
.


Phylogeny

A phylogenetic analysis shows that the species ''Rostanga aureamala'', ''Rostanga elandsia'', ''Rostanga pepha'' and ''Rostanga setidens'' form a sister group with the other species in this genus. The species from Japan and the
Marshall Islands The Marshall Islands ( mh, Ṃajeḷ), officially the Republic of the Marshall Islands ( mh, Aolepān Aorōkin Ṃajeḷ),'' () is an independent island country and microstate near the Equator in the Pacific Ocean, slightly west of the Internati ...
form the basal clade. The species from the tropical Indo-Pacific are not
monophyletic In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic ...
. The species from the
Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth#Surface, Earth's surface and about 29% of its water surface area. It is known to separate the "Old World" of Afr ...
and the Eastern Pacific from a clade that is a sister group to ''R. australis''. The Indo-Pacific species ''Rostanga bifurcata'' forms a sister group to ''Rostanga dentacus''.abstract


Species

Species within the genus ''Rostanga'' include: ;Species brought into synonymy: * ''Rostanga australis'' Rudman & Avern, 1989: synonym of ''
Rostanga crawfordi ''Rostanga crawfordi'' is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Discodorididae. Originally described as ''Discodoris crawfordi'', it was redescribed by Rudman & Avern as ''Rostanga australis''. Th ...
'' (Burn, 1969) * ''Rostanga evansi'' Eliot, 1906 : 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) * ''Rostanga hartleyi'' Burn, 1958 : synonym of '' Jorunna hartleyi'' (Burn, 1958)


References


Further reading

*Bergh, L. S. R. 1881b. Malacologische Untersuchungen. In: Reisen im Archipel der Philippinen von Dr. Carl Gottfried Semper. Zweiter Theil. Wissenschaftliche Resultate. Band 2, Theil 4, Heft 2, pp 79–128, pls. G, H, J-L. *Bergh, L. S. R. 1892. Malacologische Untersuchungen. In: Reisen im Archipel der Philippinen von Dr. Carl Gottfried Semper. Zweiter Theil. Wissenschaftliche Resultate. Band 2, Theil 3, Heft 18, pp. 995–1165. *Eliot, C. N. E. 1910d. A monograph of the British nudibranchiate Mollusca: with figures of the species. pt. VIII (supplementary). Figures by the late Joshua Alder and the late Albany Hancock, and others, pp. 1–198, pls. 1-8. Ray Society, London. *Fez Sanchez, S. de. 1974. Ascoglosos y Nudibranquios de España y Portugal. Consejo Superior de Investigaciones Científicas, Valencia, pp. 1–325, pls. 1-86. *Franc, Andre. 1968. Sous-classe des opisthobranches, pp. 608–893. In: E. Fischer, Andre Franc, Micheline Martoja, G. Termier, & H. Termier. Traite de zoologie. Anatomie, systematique, biologie. Tome V, mollusques gasteropodes et scaphopodes (fascicule III), 1083 pp. 1 pl. *Mcdonald, G. R. 1983. A review of the nudibranchs of the California coast. Malacologia 24(1-2):114-276. *Mcdonald, G. R., & J. W. Nybakken. 1980. Guide to the nudibranchs of California, including most species found from Alaska to Oregon, 72 pp., 112 photos. American Malacologists. *Muniain, C., & A. Valdés. 2000. Rostanga byga Er. Marcus, 1958 from Argentina: redescription and comparison to Rostanga pulchra MacFarland, 1905 (Mollusca, Nudibranchia, Doridina). Proceedings of the California Academy of Sciences 52(1):1-10. *Nordsieck, Fritz. 1972. Die europäischen Meeresschnecken (Opisthobranchia mit Pyramidellidae; Rissoacea), Vom Eismeer bis Kapverden, Mittelmeer und Schwarzes Meer, xiii + 327. Gustav Fischer Verlag, Stuttgart. *Odhner, Nils Hjalmar. 1907. Northern and Arctic invertebrates in the collection of the Swedish State Museum (Riksmuseum). III. Opisthobranchia and Pteropoda. Kungl. Svenska Vetenskaps Akademiens Handlingar, Neue Følge 41(4):1-113, pls. 1-3. *Pruvot-Fol, A. 1954b. Mollusques Opisthobranches. Faune de France, Paris 58:1-460, pl. 1. *Risbec, J. 1953. Mollusques nudibranches de la Nouvelle-Calédonie. Faune de l'Union Française Paris, Libraire Larose 15:1-189. *Schmekel, R. L., & Adolf Portmann. 1982. Opisthobranchia des Mittelmeeres, Nudibranchia und Saccoglossa. Fauna e flora del Golfo di Napoli 40, Monografia della Stazione Zoologica di Napoli, pp. i-viii, 1-410, pls. 1-36. Springer-Verlag. *Thiele, J. 1931. Handbuch der Systematischen Weichtierkunde. Band 1, vi + 778 pp. A. Asher & Co., Amsterdam, reprint 1963. *Thiele, J. 1992. Handbook of Systematic Malacology, part 2 (Gastropoda: Opisthobranchia and Pulmonata). Scientific editors of Translation: Rüdiger Bieler & Paula M. Mikkelsen. xiv + 1189 pp. Smithsonian Institution Libraries & National Science Foundation, Washington, D. C. *Thompson, T. E. 1975. Dorid nudibranchs from eastern Australia (Gastropoda, Opisthobranchia). Journal of Zoology 176(4):477-517, pl. 1. *Thompson, T. E. 1988. Molluscs: benthic opisthobranchs (Mollusca: Gastropoda) keys and notes for the identification of the species. Synopses of the British fauna (new series) no. 8, 2nd edition, v + 356 pp. Linnean Society of London & the Estuarine & Brackish-water Sciences Association; E. J. Brill. *Thompson, T. E., & G. H. Brown. 1984. Biology of opisthobranch molluscs, vol. 2, 229 pp., 41 pls. Ray Society, no. 156. *Valdés, Á., & T. M. Gosliner. 2001. Systematics and phylogeny of the caryophyllidia-bearing dorids (Mollusca, Nudibranchia), with descriptions of a new genus and four new species from Indo-Pacific deep waters. Zoological Journal of the Linnean Society 133(2):103-198. *Vayssière, A. J. B. M. 1901a. Recherches zoologiques et anatomiques sur les mollusques Opistobranches du Golfe de Marseille (suite et fin). Memoire No. 1, Annales du Musee d'Histoire Naturelle de Marseille (Zoologie) 6:1-130, pls. 1-7. *Vayssière, A. J. B. M. 1913a. Mollusques de la France et des régions voisines, tome premier, amphineures, gasteropodes opisthobranches, heteropodes, marseniades et oncidiides. Encyclopedie Scientifique, publiee sous la direction du Dr. Toulouse, Bibliothèque de Zoologie Doin, Paris, pp. 1–420, I-XII, pls. 1-37. udibranchia pp. 243–365 * {{Taxonbar, from=Q3061362 Discodorididae Gastropod genera