Tambja morosa
Introduction '''''Tambja morosa''''', also known as '''''Tambja kushimotoensis''''' or '''gloomy nudibranch''', is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the subfamily Nembrothinae within the family Polyceridae.This species is instead sometimes placed in the family Gymnodorididae.
Distribution The distribution of this species is primarily Indo-Pacific. It is found in the Philippines, Indonesia, Thailand, Myanmar, Malaysia, New Zealand, Solomon Islands, Taiwan, Australia, French Polynesia, Fiji and Hawaii.
Description This large species of ''Tambja'' grows to approximately 70–75 mm in length. This species is normally black with blue markings, although dark green specimens are found in the cooler waters of New South Wales and northern New Zealand. The skin of this slug is wrinkled, and it appears nearly black underwater. It has approximately five round, blue spots on its back, a blue band around its head, and a bright blue margin.
Diet ''Tambja morosa'' feeds on arborescent bryozoan colonies.
References * Pola M., Cervera J.L. & Gosliner T.M. (2006) ''Taxonomic revision and phylogenetic analysis of the genus Tambja Burn, 1962 (Mollusca, Nudibranchia, Polyceridae)''. Zoologica Scripta 35(5):491-530.
Further reading * Baba, K. (1987) Two new green colored species of Tambja from Japan (Nudibranchia: Polyceridae). Venus, The Japanese Journal of Malacology, 46(1): 13-18. * Marshall, J.G. & Willan, R.C. (1999) Nudibranchs of Heron Island, Great Barrier Reef.
External links *  Image of ''Tambja morosa''*  Images of ''Tambja morosa''*  ''Tambja morosa'' at Sea Slugs of Hawaii*