Rostanga sp

For a town in Sweden see Röstånga.

Rostanga is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks in the family Discodorididae. Some sources, such as The Sea Slug Forum still classify Rostanga in the family Dorididae.

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 form the basal clade. The species from the tropical Indo-Pacific are not monophyletic. The species from the Atlantic Ocean 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.

Species

Species within the genus Rostanga include:

• Rostanga alisae Martynov, 2003
• Rostanga aliusrubens Rudman & Avern, 1989
• Rostanga ankyra Valdés, 2001
• Rostanga anthelia Perrone, 1991
• Rostanga arbutus (Angas, 1864)
• Rostanga aureamala Garovoy, Valdés & Gosliner, 2001
• Rostanga bassia Rudman & Avern, 1989
• Rostanga bifurcata Rudman & Avern, 1989
• Rostanga byga Er. Marcus, 1958
• Rostanga calumus Rudman & Avern, 1989
• Rostanga crawfordi (Burn, 1969)
• Rostanga crocea Edmunds, 2011
• Rostanga dentacus Rudman & Avern, 1989
• Rostanga elandsia Garovoy, Valdés & Gosliner, 2001 - red sponge nudibranch
• Rostanga lutescens (Bergh, 1905)
• Rostanga muscula (Abraham, 1877)
• Rostanga orientalis Rudman & Avern, 1989
• Rostanga phepha Garovoy, Valdés & Gosliner, 2001
• Rostanga pulchra (MacFarland, 1905)
• Rostanga risbeci Baba, 1991
• Rostanga rubra (Risso, 1818)
• Rostanga setidens (Odhner, 1939)

• 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)