Rhinoceros Dolphin

The Rhinoceros Dolphin (Delphinus rhinoceros), is an unrecognized species of dolphin said to have two dorsal fins.

Off the coast of the Sandwich Islands and New South Wales, Quoy and Gaimard discovered a new type of dolphin. Described as Delphinus rhinoceros, these are dolphins - or dolphin-like whales - which possess two dorsal fins. One is near the head, where the neck would be on terrestrial animals, and the other is farther back than usual. These have a somewhat large size, and are black with large white blotches. However, their existence was never proven and their identity remains unknown. They may belong to a new genus, in which case the name Cetodipterus rhinoceros has been proposed by Raynal.