Chelidonura philinopsis
Eliot, 1903

Order: CEPHALASPIDEA
Family: Aglajidae

DISTRIBUTION

Known only from eastern Africa.

PHOTO

Seaward side of Fungu Yasin, Dar es Salaam, Tanzania. Oct 1976. PHOTO: Bill Rudman.

Perhaps this is a colour form of Chelidonura hirundinina but there are consistent colour differences with C. philinopsis being brown while C. hirundinina is black. Also the blue-black T shaped mark on C. philinopsis is edged in yellow or pale orange-brown while in C. hirundinina the yellow-orange lines are distinctly separate.

Reference:
• Rudman,W.B., 1973. On some species of Chelidonura (Opisthobranchia: Aglajidae) from Zanzibar and Fiji. Zoological Journal of the Linnean Society, 52: 201-215.

Authorship details
Rudman, W.B., 1998 (October 14) Chelidonura philinopsis Eliot, 1903. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/chelphil