These nudibranch carnivores feed principally on hydroids, anemones and corals and store their prey's nematocysts (stinging cells) in the dorsal processes , useful for defense. Length 35 mm, depth 10 m.
Also known with the species name of pugnax, this species is known to be very aggressive, attacking and dismembering other eolid nudibrachs. It is known to feed on cnidarian animals.
