Physical Description

Diagnostic Description


Up to 8 cm long. A striking black species with a broad, pale or orange border and white bands. Habitat: diverse, among shallow coral reefs. Distribution: W Indian Ocean and Red Sea (Richmond, 1997).
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Source: World Register of Marine Species


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Chromodoris africana

Chromodoris africana, or four-coloured nudibranch, is a species of colorful sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.[1]


This species is known from the Red Sea and the western Indian Ocean to the southern KwaZulu-Natal coast of South Africa. It is found down to 30m.[2][3]


This species may grow to 75mm in total length. It is a smooth-bodied nudibranch, with a black ground colour, two pale blue lines running down the notum, which has a white rim, and an orange margin. The gills and rhinophores are yellow to orange.[4]


C. africana feeds on sponges.[2] It is known to eat a species of the sponge genus Negombata.[5][6]


  1. ^ Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdes A. & Warén A. 2005. Classification and nomenclator of gastropod families. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. ISBN 3-925919-72-4. ISSN 0076-2997. 397 pp.
  2. ^ a b King, D. & Fraser, V. 2001. More Reef Fishes and Nudibranchs Struik, Cape Town. ISBN 1-86872-686-X
  3. ^ Rudman, W.B., 1999 (July 19) Chromodoris africana Eliot, 1904. [In] Sea Slug Forum. Australian Museum, Sydney.
  4. ^ Branch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. Two Oceans: a guide to the marine life of southern Africa ISBN 978-1-77007-772-0
  5. ^ Rudman, W.B., 2005 (Oct 3). Comment on Chromodoris africana feeding by Lindsay Warren. [Message in] Sea Slug Forum. Australian Museum, Sydney
  6. ^ Rudman, W. B. & Bergquist, P. R. (2007) A review of feeding specificity in the sponge-feeding Chromodorididae (Nudibranchia: Mollusca). Molluscan Research, 27(2): 60-88
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