Pacific coast of central America from Punta Eugenia, Baja California, Mexico to Costa Rica (Behrens, 2004).
Puerto Vallarta, Bahia de Banderas, Mexico. Pacific Coast. Depth: 30 feet. Length: from 7 to 15 mm. 13 May 2004. Walls. Photographer: Ali Hermosillo
The body is a translucent pink to reddish pink, the ceratal digestive gland ducts usually being a more intense reddish colour There are also opaque white specks on the ceratal wall, usually in the upper two thirds. The rhinophores, oral tentacles and posterior tip of tail can be tinged with purple, except for the tip which is a translucent white. The rhinophores are slightly verrucose (wrinkled). This species grows to about 30 mm in length.
Angulo-Campillo, Orso. 2002. New distributional records of opisthobranch molluscs from the Gulf of California, Mexico. The Festivus, 34(10): 117-121.
Bertsch, H., O.A. Campillo & J.L. Arreola. 2000. New distributional records of opisthobranchs from the Punta Eugenia region of the Baja California peninsula, a record based on 1997-1998 CONABIO-sponsored expeditions. The Festivus, 32(7): 99-104.
Behrens, David W. 1991. Pacific Coast Nudibranchs, A guide to the opisthobranchs Alaska to Baja California. Sea Challengers. Monterey, CA. 107pp. Second edition.
Behrens, David W. 2004. Pacific Coast Nudibranchs, Supplement II: New Species to the Pacific Coast and New Information on the Oldies. Proc. Calif. Academy Sciences, 55( 2): 11-54.
Gosliner, T.M. 1994. New records of Flabellinidae (Opisthobranchia: Aeolidacea) from the tropical Americas, with descriptions of two new species. Proceedings of the California Academy of Sciences, 48(9): 171-183.
Hermosillo-González. 2003. New distributional records (Mollusca: Opisthobranchia) for Bahia de Banderas, Mexico (Eastern Pacific). The Festivus, 35(3): 21-28.
Rudman, W.B., 2005 (November 17) Flabellina vansyoci Gosliner, 1994. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/flabvans