464 



ACCOUNT OF THE ARCTIC REGIONS. 



iug " swimming paws." The posterior extremity of 

 the whale, however, is a real tail ; the termination of 

 the spine or os coccygis, running through the middle 

 of it almost to the edge. 



Few opportunities of examining the internal struc- 

 ture of the mysticetus occur ; hence, what is known 

 respecting its anatomy, is deduced principally from 

 its analogy to other cetaceous animals. 



Table of the Comparative Dimensions of Six Mys- 

 ticete, from my own 3Ieasiirements. 



Longest bladeof whalehone, 



Extreme length, 



Length of the head, 



Breadth of under-jaw, 



Length from tip of Up to fin 



to greatest circumf 



Circumference at the neck. 



Greatest circumference, 



Circumfer. by the genitalia. 

 near the tail , . , . 



Fin, — Length, 



Breadth, 



Tail, — Length, 



Breadth, 



Lip, — Length, 



Breadth, 



Produce in oil, (tons). 

 Sex, 



Ft. In. 



1.0 

 17.0 



5.0 



5.Q 



7.0 



10.0 



12.0 



9.0 



2.11 



2.3 



1.3 



4.9 



i 



Ft. In. 



6.0 



28.0 



8.6 



10.0 



18 6 



20.0 



15.6 



4.0 



8.2 



4 

 M. 



Ft. In 

 10.10 



51. 

 16. 



7.0 



4.0 



5.6 



20.0 



15.6 



16 



Ft.In. 

 11.2 



50.0 



15.6 



9.6 



18.0 



24.0 



31.6 



34.0 



19.0 



6.8 



6.4 



4.0 



5.6 



17.6 



15.0 



16 

 F. 



Ft.In. 



n.6 



58.0 

 19.0 

 12.0 



35.0 



8.6 



5.0 



6.0 



24.0 



18.6 



19 



Ft. In- 

 13.7 



52.0 

 20.0 



34.0 



9.0 



6.0 

 20.10 

 19. 6 



6. 2 

 24 



M. 



The whale seems dull of hearing. A noise in 

 the air, such as that produced by a person shouting, 



