PAINTINGS (a) NORTHERN RIGHT DOLPHIN (b)SOUTHERN RIGHT DOLPHIN

NORTHERN RIGHT WHALE DOLPHIN (Lissodelphis borealis)
This slim, graceful animal gets its common name from the lack of dorsal fin - a characteristic it shares with the right whale - and its scientific name can be translated as "smooth dolphin of the north wind." It is perhaps the slimmest of all dolphins, and, despite its name, could not possible look more different from its heavy, ponderous namesake. The northern right whale dolphin reaches a maximum length of 10 feet (although most specimens are smaller), and is found in the North Pacific from southern California to Alaska, Siberia, and Japan. When pursued, it makes rapid, low-angle leaps from the water.
28.

SOUTHERN RIGHT WHALE DOLPHIN (Lissodelphis peronii)
The white-faced southern right whale dolphin (which Melville called a "mealy-mouthed porpoise") can be found throughout the Southern Ocean. It differs from its northern relative in its coloration, and also it its body form; it is more flattened from top to bottom than other dolphins, an adaptation that is thought to give it the stability it needs since it lacks a dorsal fin. It was named for Francois Peron, a French naturalist who first described it from a specimen sighted south of Tasmania.
29.

Verso: Smithsonian label checklist # 28,29 Packing case # 2, AWHS accession number