CATALOGUE OF VERTEBRATES. 517 



Nat. Mus., to whom I am indebted for this list of identifications, 

 includes Atlantic City, New Jersey, in the habitat of this species. 

 It is rare south of Cape Cod. 



GLOBICBPHALUS, Gr. 



Q-. melas, Traill. (Phocxna, Delphinus, intermedius.) Blackfisb. Black 

 Whale. Social Whale. Pilot Fish. 



Forehead protuberant ; body deep at dorsal fin ; uniformly 

 black, except a white arrow-shaped line on belly; teeth, 10; 

 length, 15 feet. Breed in summer about Cape Cod. Rare on 

 New Jersey coast. 



G. brachypterus, Cope. 



Like preceding, but with shorter pectorals ; dorsal fin far for- 

 ward and color all black ; teeth, 8. Rare. 



ORCA, Gr. 

 O. gladiator, Lac. Gladiator Dolphin. Killer, &c. 



Dorsal fin very high in male ; head broad and flat ; no beak ; 

 pectorals short ; color black, with a trident-shaped white mark 

 on belly. Pelagic and of great size, and a terror to all other 

 Cetaceans. Both jaws studded with conical teeth. Rare in- 

 shore. 



ORDER MARSUPIALIA. 



Family DIDELPHIDJE. 



DIDBLPHY8, L. 

 D. virginiana, Shaw. Opossum. 



Tail long, nearly naked, scaly, with few hairs ; toes prehensile ; 

 dirty white color ; legs dark. Length, 35 inches ; tail, 14 inches. 

 " Common, and about equally abundant in the several counties 

 of the State. It frequents wooded tracts principally, and spends 

 the greater portion of its time in trees, or in burrows at the roots 

 of large trees. They are nocturnal in their habits, and it is 



