Paagoumène, near Koumac, New Caledonia, intertidal, coral platform with coral blocks, October 1993, 59mm long. Lower photos showing rhinophores, skin texture, narrow visceral ridge and gills. PHOTOS: Bill Rudman.
This species is characterised by the narrow visceral hump, (which forms a narrow median ridge from the rhinophores to the gills), and wide mantle skirt, often autotomised when disturbed. Risbec's illustrations of an apparently misshapen specimen from New Caledonia, records the twisted and distorted shape the leathery, semi-rigid, but thin mantle skirt attains when nestling in coral crevices. Colour usually translucent white with dark brown patches, the amount of dark brown varying beween individuals. The gill and rhinophore pockets are raised. The rhinophore stalk and club are dark brown with a white line up the posterior midline of the stalk and along the anterior (upper) surface of the club. The dark brown gills have a distinct pattern of white lines.
• Bergh, L.S.R. (1877). Malacologische Untersuchungen. In: C.G. Semper, Reisen im Archipel der Philippinen, Wissenschaftliche Resultate. Band 2, Heft 12: 495-546, Pls. 58-61.
Rudman, W.B., 1999 (September 21) Discodoris boholiensis Bergh, 1877. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/discboho
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