Plate 23 MANDIBLES OF ZIPHIUS CAVIROSTRIS - The Beaked Whales of the Family Ziphiidae / An Account of the Beaked Whales of the Family Ziphiidae in the Collection of the United States Museum... - 45 - Frederick W. True

Plate 22 MANDIBLES OF ZIPHIUS CAVIROSTRIS Plate 24 MANDIBLES AND VERTEBRÆ OF ZIPHIUS CAVIROSTRIS

Plate 23 MANDIBLES OF ZIPHIUS CAVIROSTRIS

Mandibles of Ziphius cavirostris.

Fig. 1. Bering Island. (Type of Ziphius grebnitzkii Stejneger.) Cat. No. 20993, U.S.N.M. About ⅕ nat. size.

2. Newport, Rhode Island. Symphysis. Dorsal aspect.

3. The same. Ventral aspect.