Roboastra sp. 2

Suborder: DORIDINA
Family: Polyceridae
Subfamily: Nembrothinae


Gulf of California to Galapagos Ids


North Seymour Island, Galapagos Ids., July, 2003. 30-40 feet. Approx 30mm long. Photo: Patty Dilworth

This species is illustrated in A Field Guide to Marine Mollusks of the Galapagos by Cleveland Hickman Jr [1999 - p. 127 as Roboastra sp.].

"The edge of the foot is blue-black. The body is patterned with yellow ochre and blue-black stripes. The rhinophores are bright orange with blue-black at their bases and tips. The gills are white with blue-black tips." It is found in the Gulf of California and the Galapagos. It feeds on Tambja mullineri in the Galapagos and Tambja spp. in the Gulf. [See Ray Simpson's message].

Authorship details
Rudman, W.B., 2004 (January 22) Roboastra sp. 2 [In] Sea Slug Forum. Australian Museum, Sydney. Available from