Chromodoris fidelis
(Kelaart, 1858)
Order: NUDIBRANCHIA
Suborder: DORIDINA
Family: Chromodorididae
DISTRIBUTION
Tropical Indo-West Pacific.
PHOTO
UPPER: Heron Is, Qld, PHOTO: Julie Booth.
LOWER LEFT: Suakin, Sudan, Red Sea, April 1980. PHOTO: C. Todd
LOWER RIGHT: Koumac, New Caledonia, October 1993. PHOTO: Bill Rudman.
The mantle is creamy white with a broad orange band around the mantle edge and a thin wine red line between the white and the orange. On the inner edge of the orange band there are usually a series of tongue-like patches running into the white region. In some cases they are almost all wine red while in others there is only a slight thickening of the red band. Grows to 20-25mm long. Three common variations are illustrated here and all seem present throughout the Indo-West Pacific. Equally characteristic are the black rhinophores and gills and the white foot. In northern New South Wales there is, what I consider to be a unique colour form of this species.
Reference:
• Rudman, W.B. (1985) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: Chromodoris aureomarginata, C. verrieri and C. fidelis colour groups. Zoological Journal of the Linnean Society, 83: 241-299.
Authorship details
Rudman, W.B., 1999 (June 1) Chromodoris fidelis (Kelaart, 1858). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/chrofide
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