WHALES 



Pacific Right Whale. — Euhalcena sieholdii (Gray). 



Resembling EtihalcBna glacialis, but with a large, rough 

 protuberance at end of upper jaw, and wart-iike bunches on 

 lips and head ; superior outline of Viead not so convex as in 

 the Bowhead; baleen coarse; length 60-70 feet. Found in 

 the North Pacific from California to the Aleutian Islands. 



Fig. 123. Right Whale 



Genus Balaena 



Bowhead; Greenland Right Whale. — Balaena mys- 

 ticetus Linnaeus 



General Description. — A large Whale, 50 to 65 feet long, 

 with very large head and highly arched upper jaw; head more 

 than one-third of total length; baleen very long, finely fringed. 



Geographical Distribution. — Circumpolar seas. 



Fig. 124. Bowhead Whale 



Family Rhachianectidae. Gray Whale 



Mandible heavy and slightly bowed outward; rostrum deep 

 rather than broad; supraorbital process of frontal depressed; 

 nasals greatly enlarged. 



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