Project Description

This white-and-orange-tipped nudibranch (Janolus fuscus) has large colourful lobes on its back called cerata that help with respiration.  The two spiked structures on top of its head are called rhinophores, and the ridges that can be seen on these rhinophores help this animal locate nearby food by smell.  This nudibranch is relatively small reaching only about one inch (2.5 cm) in length.  The white-and-orange-tipped nudibranch lives in the shallow intertidal area down to about 100 feet (30 m) of depth, and has a range that includes the Sea of Japan, and southern Alaska to southern California.