Eubranchus tricolor

Comment from expert, Richard Willan: Growing to a maximum size of 45 mm, this aeolid is probably the largest species in the family. Unlike most other members of the family (which have ‘lumpy’ cerata), the cerata of Eubranchus tricolor are completely smooth. Eubranchus tricolor is easily recognised by the highly transparent body and cerata, the cerata are large and each has a cream-yellow tip with a narrow black digestive diverticulum internally. The rhinophores are long and they stand well above the cerata.