91 



not the tongue, as I have stated in several places. In this Krepokak 

 especially, the tongue was found untouched, and was afterwards flensed 

 by the Greenlanders." " They are able to swallow whole porpoises, as 

 well as seals, even very large individuals, four at least immediately after 

 one another (according to Nilsson's observation), and in the course of a 

 few days as many as twenty-seven individuals ; nor do they fear to attack 

 and tear to pieces the very largest whalebone whales, in order to satisfy 

 their hunger on the blubber." 1 



Mr. E. Brown, who, from his position in the Arctic Eegions, and 

 long experience among the northern whales, must be regarded as a good 

 authority, also notices in the Proc. Zool. Socy., 1868, that " the Aidluik 

 is only seen in the summer-time along the whole coast of Greenland. 

 "Wherever the white whale, the right whale, or the seals are found, 

 there is also their ruthless enemy, the Killer. 2 The white whale and 

 seals often run ashore in terror of this Cetacean, and 1 have seen seals 

 spring out of the water when pursued by it." " Though subsisting chiefly 

 on large fishes, they will not hesitate to attack the largest whalebone 

 whales, and are able to swallow whole, large porpoises and seals." "I 

 know of a case in which they attacked a white-painted herring-boat in 

 the Western Islands, mistaking it for a Beluga." 



The Southern Killers have similar habits ; they* associate in groups, 

 and follow up their prey, the larger in the more open ocean, the smaller 

 in bays and shallower waters. 



Even to the most fastidious imagination, not hopelessly prepossessed, 

 can there be presented any possible barrier which would prevent beings, 

 endowed with such physical powers, emigrating, when overstocked, to 

 other feeding grounds, and thus, in the course of generations, spreading 

 out into families over the face of the ocean ? 



Genus PsEUDOBCA, 3 Eeinhardt. 



The generic characters are similar to those of the genus Orca, with 

 the exception that the dorsal fin is moderate, and the pectoral fin small, 

 falcate, not of that great breadth so peculiar to the larger killers. The 

 mandible is strong, but does not exhibit at its front the depth and 

 solidity of that of the Orca. The array of teeth is even more for- 

 midable from their strength and solidity, although the animals carrying 

 them are much smaller than the foregoing genus. 



PSETJDOKCA CKASSiDENS, 4 Owen. The Lincolnshire Killer. 



Synonyms Phocaena crassidens, Owen, Brit. Foss. Mamm. 



Pseudorca crassidens, Eeinhardt, Gray, S. & W., p. 290, 

 and Suppl., p. 80. 



1 Eschricht on the Northern species of Orca. Eay Society 1866, p. 168. 



2 "They (the Grampus of the' South. Seas) occur in herds, and their appearance 

 is supposed to indicate the resorts of the Cachalots." Bennett, Whaling Voyage. 



3 False Orca. 



4 crassu*, thick, and dens, tooth. 



