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''Rostanga'' 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
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 in the family
Discodorididae Discodorididae is a Taxonomy (biology), taxonomic family (biology), family of sea slugs, specifically dorid nudibranchs, marine (ocean), marine gastropod mollusks in the superfamily Doridoidea.Bouchet, P. (2011). Discodorididae. Accessed through: ...
. 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 Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...
and the
Marshall Islands The Marshall Islands, officially the Republic of the Marshall Islands, is an island country west of the International Date Line and north of the equator in the Micronesia region of the Northwestern Pacific Ocean. The territory consists of 29 c ...
form the basal
clade In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach t ...
. The species from the tropical Indo-Pacific are not
monophyletic In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent co ...
. The species from the
Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...
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'' (Burn, 1969) * ''Rostanga evansi'' Eliot, 1906 : synonym of '' Jorunna evansi'' (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