Gosliner & Johnson, 1999
Known from the Philippines and Okinawa.
Upper: Anilao, Luzon Island, Philippines, April, 2002. Lower: Juvenile animal. Anilao, Luzon Island, Philippines, (approximately 8-10mm), April, 2000. Photos: Jeff Rosenfeld
Adult Hypselodoris bollandi are very similar in external appearance to the yellow spotted species of Risbecia, R. pulchella, R. godeffroyana and R. imperialis but it differs in a number of features. Its rhinophores are translucent reddish orange and its gills are translucent white with red-orange edging. The gills of the Risbecia species are vibrate rhythmically and are arranged with secondary spirals while in H. bollandi they form a simple circle. The mantle glands in H. bollandi are restricted to the anterior and posterior ends of the mantle while in species of Risbecia there are glands down each side of the mantle as well. From the few photos available (see Gosliner & Johnson, 1999, Bob Bolland's website), in adults the blue becomes much darker and a diffuse reticulate pattern of dark blue develops over the mantle, much as in species of Risbecia.
• Gosliner, T.M. & Johnson, R.F. (1999) Phylogeny of Hypselodoris (Nudibranchia: Chromodorididae) with a review of the monophyletic clade of Indo-Pacific species, including descriptions of twelve new species. Zoological Journal of the Linnean Society, 125: 1-114.
Rudman, W.B., 2001 (May 23) Hypselodoris bollandi Gosliner & Johnson, 1999 . [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/hypsboll
Hypselodoris bollandi from the Philippines
From: Carlos R. Munda, June 24, 2006
Hypselodoris bollandi from Malaysia?
From: Sharif Forbes, May 2, 2006
Hypselodoris bollandi from Philippines
From: Jeff Rosenfeld, May 17, 2002
Re: Chromodorid from the Philippines
From: Rebecca Johnson, May 25, 2001
Chromodorid from the Philippines
From: Jeff Rosenfeld , May 24, 2001