Tambja is a genus of colorful sea slugs, dorid nudibranchs, shell-less marine gastropod mollusks in the family Polyceridae. Known only from Brazil.
These nudibranchs feed on bryozoa.
Tambja stegosauriformis is yellow to orange ground colour and scattered bluish tubercles of varying sizes, some being quite large and raised. There are a series of thubercles forming a distinctive crest down the dorsal midline behind the gills, which give the species its name.
Pola, M.., Cervera, J.L. & Gosliner, T.M. (2005) A new species of Tambja (Nudibranchia: Polyceridae: Nembrothinae) from southern Brazil. Journal of the Marine Biological Association, U.K., 85: 979 - 984
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