Appearance''Ardeadoris cruenta'' has a pale-lemon colored body with a bright yellow and white lined frilly mantle and foot. There are red dots in a circular pattern on its dorsum next to the mantle edge. Both its rhinophores and gills have the same pale-lemon color as its body, although there is some color variation among individuals. It reaches a length of at least 50 mm.
This species has similar coloring to the seaslug ''Ardeadoris rubroannulata'', although that species lacks the red dots present in ''Ardeadoris cruenta''.
DistributionThis species was described from Osprey Island, Great Barrier Reef, Australia, in the tropical Western Pacific Ocean. It has also been recorded from the Philippines, the Lembeh Strait in northern Sulawesi, East Timor and the Solomon Islands. This species of nudibranch is not common.Rudman, W.B., 2000 [In] Sea Slug Forum. Australian Museum, Sydney.
HabitatLike other Chromodorids, this species feeds on sponges.Rudman, W.B., 2006 [Message in] Sea Slug Forum. Australian Museum, Sydney.
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