We saw several of these at a site called Secret Bay, and more at Murals and Red Palm. Similar in color to Hypselodoris infucata and H. confetti, they are easiest to distinguish from the former by the morphology and coloration of the gills, which have flattened outer surfaces with a series of light-colored spots running from base to tip. Gill morphology is similar to H. confetti, but the lower half of the gills and the rhinophore bases of that species are dark blue to black instead of red. There are also differences in the internal anatomy and molecular data. However, H. roo and H. confetti are very similar in appearance and even the gill color seems to blend together, so some of our IDs may be incorrect.
Created 13 June 2015
Updated 17 April 2020