Blue seems to take over this little nudibranch, from its finely speckled back to the broad folds of its mantle, with thick black lines cutting through the color like bold strokes. A bright yellow border runs all the way around the body, edged in white, while orange rhinophores and gills rise above it like small flames. The whole animal has an almost graphic quality, as though someone reduced a reef fish to its strongest possible lines and colors.
Size: Up to around 50 mm
Range: Indo-West Pacific; from Malaysia and Indonesia through the Philippines to the Marshall Islands
Habitat / Depth: Coral reefs and rocky substrates, typically found at depths of 15–30 m
Diet: Feeds on sponges, particularly Petrosaspongia