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...

by Frederick W. True

Plate 1 SKULLS OF MESOPLODON

Fig. 1. Mesoplodon bidens. Skull. Nantucket, Mass. Mus. Comp. Zoölogy, No. 1727. Female, adult. Dorsal aspect. About ¼ nat. size.

Extremity of beak defective.

2. Mesoplodon densirostris? Skull. Annisquam, Mass. Female, young. Boston Society of Natural History. Dorsal aspect. ¼ nat. size.

Defective on the left side.

Plate 2 SKULLS AND TOOTH OF MESOPLODON

Fig. 1. Mesoplodon europæus. Skull. Atlantic City, New Jersey. Male, young. Cat. No. 23346, U.S.N.M. Dorsal aspect. ¼ nat. size.

2. Mesoplodon europæus. Skull. North Long Branch, New Jersey. Female, adult. Mus. Comp. Zoölogy. Dorsal aspect. ¼ nat. size.