Gosliner in Millen & Gosliner, 1985
Known from both the Atlantic and Indian Ocean coasts of the Cape Peninsula, South Africa.
Brazenhead, Eastern Cape, 25 m, South Africa, July 2001. Size: 2.5cm Photo: Valda Fraser.
Characterised by three brown spots. Although the size of the spots can vary their placing seems to be constant in the specimens that have been studied. Little is known of its natural history other than that it has been found in association with an unidentified white sponge. It grows to at least 25mm long.
Reference: Millen, S.V. & Gosliner, T.M. (1985) Four new species of dorid nudibranchs belonging to the genus Aldisa (Mollusca: Opisthobranchia), with a revision of the genus. Zoological Journal of the Linnean Society, 84: 195-233. (Figs 1-21.)Authorship details
Rudman, W.B., 2001 (August 1) Aldisa trimaculata Gosliner in Millen & Gosliner, 1985. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/alditrim