THE MAMMALS OF NEW JERSEY. 53 



dark slate or blackish shading gradually into white on the belly, 

 sides somewhat tinged with pink or yellowish and a dark band 

 fromi the lower jaw half way toi the flipper. Teeth, 26 on each 

 side above and below. 



This is the commonest of the roimd headed or beakless Dol- 

 phins and is essentially a coast and harbor species, though it is 

 apparently not as plentiful on this coast as in Europe. 



Dr. True records two from Cape May in the U. S. National 

 Museum, and another from New York Harbor. 



There is a stuffed specimen in the Museum of the Philadelphia 

 Academy said to have been taken in the Delaware River. 



Cassin, Abbott and Rhoads mention this species as ascending 

 the Delaware, Passaic, Raritan and Hudson, but these state-, 

 ments are apparently not based upon actual identified specimens. 



Phoccsna communis Abbott, Cook's Geol. of N. J., 1868, p. 

 760.— True, Bull. 36 U. S. Nat. Mus., 1889, p. 118.— Rhoads, 

 Mam. Pa. and N. J., 1903, p. 20. 



Delphinus Phoccena Cassin, Hist. Del. Co. Pa., 1862, p. 434. 



Genus Orcinus Fitzinger. 



Orcinus orca (Linnaeus). 



Killer. 



Plate 13, Fig. 2. 



Length, 20 feet. Forehead flat, dorsal fin enormous (6 feet 

 high in the male), flippers short and rounded. Colors black 

 above and white below, in strong contrast; the white extends 

 upward in two stripes on the side, and there is a white spot above 

 each eye and a purplish area behind the dorsal fin. Teeth, lo' 

 to 13 on each side above and below, large and sharp. 



These animals are the "wolves of the ocean," to quote Cap- 

 tain Scammon, and pursue, kill and devour "blackfish" porpoises, 

 whales, seals and large fishes'. Frequently schools of easy-going 

 porpoises are driven into wild disorder by their approach, and 

 rush madly into the shallows where they are stranded and fall 

 prey to their enemies on the land. 



