74 PSEUDORCA. 



1. PSEUDORCA CRASSIDENS, Oiven (1846). 



Tasmanian Killer. 

 Black above, whitish below. 

 Dimensions. Same as preceding species, 



Habitat. Coast of Tasmania, New South Wales, Lord Howe 

 Island. 



References. Gray, B.M. Catal. Seals and Whales, p. 80; Scott, 

 Seals and Whales, pp. 91, 92. 



Genus IV. GLOBICEPHALUS, Lesson (1842). 



Pterygoid bones of normal form, meeting or very nearly so in 

 the median line. Upper surface of beak broad, flat, and concave 

 in front of the nostrils. Premaxillaj as wide, or wider, at the 

 middle of the beak as at its base. Bodies of the five or six anterior 

 cervical vertebrae united. 



Vertebra. C. 7, D. 11, L. 12 to 14, Cd. 28 or 29; total 58 or 59. 



Dentition. J^g to g=j| rarely J^; slightly curved at the tips. 



1. GLOBICEPHALUS MELAS, Traill (1809). 



Ca'ing or Pilot Whale. 



Smooth shining jet black above, paler below, with a white stripe 

 along the throat and abdomen. 



Dimensions. Up to twenty -five feet. 

 Habitat. Seas beyond the tropics ; Tasmania. 

 References. Gray, B.M. Catal. Seals and Whales, p. 314, and 

 Suppl. p. 83 ; Scott, Seals and Wales, pp. 99, 100, 139. 



Genus V. DELPHINUS, Linnceus (1776). 



Beak long and narrow, greatly exceeding the brain cavity in 

 length, its basal width about one-third of its length. Forehead 

 rounded. Dorsal fin falcate, situated on the middle of the back. 

 The two anterior cervical vertebrae united, the rest free. Palate 

 with lateral grooves. 



Vertebra. C. 7, D. 12 - 14, L. & Cd. 54 ; total 73-75. 



Dentition. J- - f . 



Note. Prof. Flower (P.Z.S. 1883, p. 502) appears to consider 

 the four following species as forms of a single widely disseminated 

 one. 



1. DELPHINUS DELPHIS, Linnmus (1766). 



Common Dolphin. 

 Black above ; sides gray ; beneath white. 



