Known only from Timor and the Marshall Ids.
Enewetak Atoll, Marshall Islands, 12 to 19 mm long. Photos: Scott Johnson.
Mantle translucent white to cream with a scattering of slightly darker spots. There are also scattered opaque white spots. The gills and rhinophores are a translucent straw to orange in colour, matching the background colour of the mantle.
Go to Rostanga lutescens - anatomy.
Johnson, S. & Bertsch, H. (1985) Rediscovery and Redescription of Rostanga lutescens (Bergh, 1905), comb nov. (Gastropoda: Nudibranchia). The Veliger, 27(4): 406-410.
Rudman, W.B., 2002 (March 4) Rostanga lutescens (Bergh, 1905). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/rostlute