This species is known only from Japan and Hong Kong.
Hong Kong, April 1983. Photos: Bernard Picton.
This differs from Chromodoris orientalis in having smaller, more numerous black spots, a distinct white mantle border with a row of orange spots and a broad submarginal band of large elongate diffuse blue patches. On the foot there is an orange tip to the pointed posterior end but unlike C. orientalis there are no orange spots bordering the sides. It grows to at least 20 mm.
• Rudman, W.B. (1983a) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: Chromodoris splendida, C. aspersa and Hypselodoris placida colour groups. Zoological Journal of the Linnean Society, 78: 105-173.
• Rudman, W.B. & Darvell, B.W. (1990) Opisthobranch molluscs of Hong Kong. Part 1. Goniodorididae, Onchidorididae, Triophidae, Gymnodorididae, Chromodorididae, (Nudibranchia). Asian Marine Biology, 7: 31-79
Rudman, W.B., 2001 (July 5) Hypselodoris placida (Baba, 1949). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/hypsplac
Hypselodoris placida and egg ribbon from Japan.
From: Jun Imamoto, July 3, 2002
Hypselodoris placida from Japan
From: Nishina Masayoshi, September 1, 2001
Hypselodoris placida from Hong Kong
From: Bill Rudman & Brian Darvell, July 11, 2001