preocular tentacles detect distant odor and the lateral digital tentacles detect nearby odor.

Digestive system

The radula is wide and distinctively has nine teeth.

The mouth consists of a parrot-like beak made up of two interlocking jaws capable of ripping the animal's food -- mostly crustaceans -- from the rocks to which they are attached. Males can be superficially differentiated from females by examining the arrangement of tentacles around the

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