Risso's dolphin


Ris·so's dolphin

R5281750 (rĭs′ōz)n. A marine mammal (Grampus griseus) having a bulbous head, a tall curved dorsal fin, and a gray body with white streaks or scars. Also called grampus.
[After Antoine Risso (1777-1845), French naturalist born in Nice.]