2. Skull. Barnegat City, New Jersey. Ventral aspect. ⅙ nat. size.

[Illustration: Plate 19 SKULLS OF ZIPHIUS CAVIROSTRIS]

_Ziphius cavirostris._

Fig. 1. Skull. (Type of _Ziphius grebnitzkii_.) Bering Island. Cat. No.

20993, U.S.N.M. Ventral aspect. ⅙ nat. size.

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