Plate 7 SKULLS OF MESOPLODON
Fig. 1. Mesoplodon bidens. Skull. Nantucket, Massachusetts. Female, adult. Mus. Comp. Zoöl. No. 1727. Lateral aspect. ¼ nat. size.
Tip of beak, left pterygoid and malar defective.
2. Mesoplodon densirostris? Skull. Annisquam, Massachusetts. Female, young. Boston Soc. Nat. Hist. Lateral aspect. ¼ nat. size.
Distal portion of beak defective and warped.