The characteristic feature of this dolphin is its conical head and slender nose. The flippers are set back further along the body than in other similar dolphins (at sea this dolphin may be confused with the Spinner, Spotted and Bottlenose Dolphins.) The dorsal fin is pronounced.
The lips, throat and belly are pinky-white. The flanks are a light grey and the back and dorsal fin a much darker grey. The dolphin grows up to about 2.5m in length and weighs about 150kg.
The species is social. Group sizes are commonly as large as fifty and groups as large as 100 have been reported. The dolphin has not been observed to bow-ride but does "skim" - swim with their heads and chin above the surface of the water.