This dolphin features a body type similar to most other short-beaked oceanic dolphins, with a sleek overall shape and a sickle-shaped dorsal fin. It is colored black above with gray sides and a white underside, with black pectoral fins.
Its most distinctive feature that helps separate it from other short-beaked dolphins is the large patch on either side that runs diagonally from the dorsal fin to the tail. The patch is white near the dorsal fin, and becomes yellowish as it reaches closer to the tail.
These dolphins can reach up to 9 feet long and weigh over 500 pounds when full grown.