Rare in the Solitary Islands Marine Park. Known from the Indo-West Pacific region, north to Japan.
Found on rocky reef substrate, depth to at least 15 m. Thought to feed on sponges, including Spongia oceania.
A spectacular species with a brown mantle edged with white frilly margin. The margin is itself edged with yellow/brown. Grows to around 50 mm.
Gary Cobb, David Mullins, Nudibranchs Encyclopedia, 2nd Edition, 2015. Publishers Thomas Slone, Masalai Press and Tim Hochgrebe, Underwater Australasia. p.139.