THE MAMMALS OF NEW JERSEY. 47 



is in the Museum of the Wistar Institute, which I examined in 

 the flesh. It was captured November 2d, 1899. 



Kogia hreviceps Rhoads, Mam. Pa. and N. J., 1903, p. 15. 



Kogia Goodei True Nat. Hist. Useful Acjuat. Anim., 1884, 

 pi. 2. 



FamUy ZIPHIID^. 



Botti.e-Nose;d Whales. 



These whales are intermediate in size, between the large 

 whales and the dolphins. They have protruding snouts and 

 never more than two teeth. The front of the skull enlarges with 

 age and sometimes protrudes over the snout. 



Three genera occur in the north Atlantic : 



a. No teeth visible. hyperoodon 

 aa. One tooth on each side of the lower jaw. 



b. Teeth at the front of the jaw. ziphius 



bb. Teeth at the middle of the jaw in male. (Female toothless.) 



MESOPLODON 



Genus Hyperoodon Lacepede. 

 Hyperoodon rostratus (Miiller). 



Bottle-Nosed Whale. 



Plate 8. 



Length, 20 feet. Head nearly vertical in front, beak promi- 

 nent, a depression around the blow-hole, flippers and dorsal fin 

 moderate. No teeth visible, although one may be found on each 

 side of the lower jaw in front, buried in the gums. Color, 

 blackish, head somewhat lighter below. This species is common 

 in the northern oceans, but the only record on the New Jersey 

 coast is one mentioned by DeKay in his Zoology of New York, 

 I., p. 131, taken in the lower bay in 1822. 



Genus Ziphius Cuvier. 



Ziphius cavirostrls Cuvier. 



Ziphius Whale, Cuvier's Whale. 



Length, 15-20 feet. Similar to the preceding, but with the 

 teeth at the front of the lower jaw usually visible. Three of the 



