National Geographic : 1940 Jan
\VHALES, PORPOISES, AND DOLPHINS MYSTERY STILL. PARTLY CLOAKS TIIE RARELY SEEN ROUGH-TOOTIED DOLPHIN Few naturalists ever have observed one in the flesh. The crowns of its teeth are roughened by fine vertical ridges. The Romgh-tootheld Iolphin has been seen by sailors in most of the oceans. () National G(eorraphic Society Paintings by Else Bostelmain POCKET EDITION OF MOBY DICK IS THIE I'YGMY SPERM WIIALE Like its giant relative (Plate I), it has sharp, backward-curving teeth in the lower jaw only, a reservoir of spermaceti in its head, and lives largely on cuttlefish. The Pygmy Sperm is believed to inhabit both the Atlantic and Pacific Oceans.