THE PORPOISES. 





Closely allied to the Bperm whales are the pigmy whale--. 

 represented on the Californian coasl 1 » y Kogia Flowen 

 (Fig. 304), which is nearly three metres (nine feet) in 

 I h, wit ii a conical head. 



The narwhal' | \fonodon monoceros) is distinguished by 

 the long, spirally-twisted, horn-like tusk of i be male, formed 

 of the left upper incisor, which becomes nearly three metres 

 long, the female having no risible teeth; there being two 

 rudimentary incisors which never appear through the gum. 

 1 1 ranges from the coasl of northern Labrador to the Arctic 

 - as. 



To the family of dolphins and porpoises belong the white 



Fio 806. — South American Manatee From LUtken's Zoo! 



whale, or />' Iphinapterus leucas, which ranges from the 

 (lull* of St. Lawrence northward; the grampus (Grampus 

 griseus)', the black-fish, of which there are two spei 

 one Globicephalus melas, ranging north of New York, and 

 the other, G. brachypterus, extending to the southward; 

 and the porpoises, of which the mosl common on our c 

 is Phocama brachycium, the rarer being Phocama liar, tin. 

 On the coasl of Labrador, as well as northward, occurs the 

 thrasher or killer (Orca gladiator), which has large t< 

 ami a high dorsal fin; it attacks whales, gouging out the 

 flesh from their sides. Certain extinct whales, judging by 

 their fossil remains, were pygmies in size, while the . 

 glodon of the eocene tertiary beds of Alabama was an enor- 

 mous serpent-like whale, which must have measui 

 70 feet in length. 



