1910.] AND Ulor.OfJV OF TlIK T.AlfOKll CKTACEA. 785 



Penit. ~\n tlu' Cetafwi the poiiis wlieii not in use is cajnible of 

 ))eing- entirely \vitli(Ii'avvu into the hoily-oavity. The ventral 

 surface of tlie body is thus left free from any protuberance which 

 would hinder the animal in swimming. The testes remain 

 permanently inside the body-cavity. The penis of an adult 

 li. nnusculus measures from 5 to 6 feet in length when fully 

 extended ; it is about a, foot in diameter at the base, taporino- to 

 a relatively fine point. 



Text-fig. 75. 



Ventral view of anterior extremity of the bcuk of Ba!a:nnptern musculus Liiuutnia 

 a = hairy inner surface of baleen plates; b = external openings of tlie orca,; 

 Jacobson. ^ 



Food. — An examination was made of the stomach-contents of 

 nearly all the specimens of this species caught during the months 

 of July and August, and it was found that only one individuaJ, 

 kdled on July 13th, had fed upon herrings. The alimentaiy 



