Dolabrifera dolabrifera, South Pacific. The Aplysiidae have tentacles (rhinophores) shaped like the ears of rabbits, from which they get their common name, "sea hares." Commonly behind the head is a neck-like region that merges into a plump trunk. The entire body is often covered with warts or other projections.
John B. Burch (photographer; copyright holder), Mollusk Division, Museum of Zoology, University of Michigan-Ann Arbor