Favorinus mirabilis
Baba, 1955

Family: Glaucidae


First described from Japan and reported here from the Marshall Islands, Guam, Singapore and Mayotte (Indian Ocean).


Specimens from the Marshall Ids showing colour variation. All less than 10mm long. PHOTOS: Scott Johnson.

First described from Japan from a cream coloured specimen similar to the bottom right photo. Baba's specimen had black perfoliate rhinophores, yellow oral tentacles and a yellow margin to the leading edge of the foot. In his painting there is a reddish median line on the head. Scott Johnson's photos suggest that there is some variability in the colour details in this species but that the purple spot and white speckling on the cerata are very consistent.

See Favorinus cf. mirabilis for an animal with orange-yellow cerata, and feeds on Hexabranchus eggs.

  • Baba, K. (1955) Opisthobranchia of Sagami Bay. Supplement. Iwanami Shoten, Tokyo.

Authorship details
Rudman, W.B., 1999 (December 5) Favorinus mirabilis Baba, 1955. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/favomira

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