The nudibranchs called by this name are probably an aggregate species consisting of Doto
species which share the characteristics of red pigment spots on the tips of the ceratal tubercles and red pigment in the pseudobranch region on the inner face of each ceras. There are red to maroon pigment spots or streaks on the body. The smooth rhinophores have sheaths with dilated margins. The body is translucent white. Typically about 10mm in length. The newly described species Doto hydrallmaniae
and Doto sarsiae
have only recently been separated from this complex by electrophoretic methods. It is likely that other morphs are also good sibling species.