Uncommon to rare in the Solitary Islands Marine Park. Recorded from Japan, in Australia from Lord Howe Island and the Great Barrier Reef.
Found on sea grass and rocky reef to about 15 m depth. A voracious predator of other opisthobranchs.
Translucent pale body with large white pustules and orange spots. The gills and rhinophores are similar to the body colour, the large gills opening widely when the animal is active. Grows to 40 mm.
Gary Cobb, David Mullins, Nudibranchs Encyclopedia, 2nd Edition, 2015. Publishers Thomas Slone, Masalai Press and Tim Hochgrebe, Underwater Australasia. p.247.
Undersea Jewels, A colour guide to nudibranchs, Gary Cobb and Richard C Willan. Australian Biological Resources Study, Canberra, 2006. p.91.