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 
from the lower jaw half way to the flipper. ‘Teeth, 26 on each 
side above and below. 
This is the commonest of the round 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. 
Phocena 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 Phocena Cassin, Hist. Del. Co. Pa., 1862, p. 434. 
Genus Orcinus Fitzinger. 
Orcinus orca (Linnzus). 
Killer. 
Pravin; Frc; 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, 10° 
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. 
