The Johns Hopkins University Press. All rights reserved. This document may be used, with this header included, for noncommercial purposes within a subscribed institution . No copies of this work may be distributed electronically outside of the subscribed institution, in whole or in part, without written permission from the JHU Press .
Most species have a gray or black back, a paler belly, and various bands and stripes on the sides.
In L. albirostris the beak is white, and in L. obliquidens there are conspicuous yellowish brown and grayish streaks on the sides. The dorsal and pectoral fins are pointed. The beak is poorly defined and only about 5 cm long. These dolphins generally occur in cool waters. Such movements are probably related to the availability of food.