Rostanga aureamala is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Discodorididae.

Distribution This species was described from Algoa Bay, South Africa, .Rudman, W.B., 2002 (February 15) Rostanga aureamala Garovoy, Valdés & Gosliner, 2001. [In] Sea Slug Forum. Australian Museum, Sydney.

Description This dorid nudibranch is bright orange to reddish-orange in colour and the dorsum is covered with caryophyllidia; in form it is very similar to other species of Rostanga. It grows to in length. It is illustrated as Rostanga sp. 3 in Gosliner, 1987.Gosliner, T., 1987 Nudibranchs of southern Africa: A guide to Opisthobranch molluscs of southern Africa. page 72, Fig. 99. Sea Challengers, Monterey.

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