320 



MAMMALIA. 



Distribution. — Bay of Bengal. 



The above synonymy also refers partly to what Blyth consi- 

 dered the young form of this species, but which was subsequently 

 shown by Anderson to be really a different species (Orcella brevi- 

 rostris, see supra). 



The skull of Globicephalus indicus differs from that of G. melas, 

 in having the premaxillae on the rostrum so broadened, as to cover 

 the maxillae completely; the teeth are also much larger and less 

 numerous than in G. melas. 



This is exactly the difference pointed out by Prof. Flower be- 

 tween the skull of G. melas and G. macrorhynchus (Gray Zool. 

 Ereb. Terr., p. 33) which was got from the Cape of Good Hope. 



To this broad-snouted group of the genus Globicephalus, 

 there also belong G. scammoni Cope from the Pacific, and G. 

 brachypterus Cope from the Atlantic coasts of the Southern States 

 and also G. guadaloupensis C-G. intermedins) ; True (Contribu- 

 tions to the Natural History of the Cetaceans in Bull. U. S. Nat. 

 Mus. no. 36) considers that G. scammoni of the Pacific and G. 

 brachypterus of the Atlantic differ specifically, and G. indicus seems 

 to be rather more allied to the latter than to the former. 



The follot»ing are the measurements of the two skulls of G. 

 indicus and also of the one of G. melas above ; the measurements 

 are the same as those given by True in the paper quoted above and 

 are given in centimetres. 



G. indicus. G. indicus. G. melas. 



Total length . t , . •. . ^« 



Length of beak 



Breadth of beak, at its base 

 „ ,, at its middle 



Breadth of premaxillae at middle of 

 beak ...... 



Greatest breadth between the outer 

 margins of the premaxillae proxi- 

 mally ...... 



Length of tooth line 



Last tooth to base of maxillary notch 



Extremity of beak to the anterior mar- 

 gin of the narial opening 



Extremity of beak to the end of the 

 pterygoid crest .... 



Breadth between the orbits 



Breadth between the hinder margins 

 of the temporal fossae . . 



Length of the temporal fossae 



Depth of the temporal fossae . 



Length of the mandible . 



Length of mandibular symphysis 



Length of the mandibular tooth row 



Number of teeth . . . . 



