40 MARINE 3IAMMALS OF THE NORTH-WESTERN COAST. 



Ft. In. 



Distance from genital slit to flutes 17 



Length of folds on belly 16 



Whole breadth of folds on belly 10 



Distance from flutes to hump 12 3 



Length of hump along the bact 3 



Height of hump 1 



Depth of small close to flutes 2 6 



Thictness of small close to flutes 1 6 



Thickness of blubber, five to ten inches ; color of blubber, yellowish white ; 

 yield of oil, forty barrels; number of folds on belly, twenty- six, averaging from 

 four to six inches in width. These folds, which extend from the anterior portion 

 of tlie throat over the belly, terminating a little behind the pectorals, are capable 

 of great expansion and contraction, which enables the Humpbacks, as well as all 

 other rorquals, to swell their maws when their food is in abundance about them. 



The following additional measurements, etc., were taken from Humpbacks capt- 

 ured on the coast of Upper California, in 1872. 



1. Sex, female. Color of body, black above, but more or less marbled with 

 white below. Fins, black above, and dotted with white beneath. Color of blub- 

 ber, white. Number of folds on throat and breast, twenty- one, the widest of which 

 were six inches. Yield of oil, thirty- five barrels. The yield of bone, which is of 

 inferior quality, is about four hundred pounds to a hundred barrels of oil. 



rt. In. Ft. In. 



Length of animal 48 Anus to notch of caudal fin 12 6 



Length of each pectoral 13 Genital slit to notch of caudal fin 12 11 



Thictness of each pectoral 8 Length of genital slit 3 6 



Breadth of each pectoral 3 5 Size around the body behind pectorals . . 25 



Expansion of caudal fin, or flutes 18 Average thictness of blubber 5 



Breadth of each lobe 3 G Depth of small at junction with caudal fin, 1 9 



Thictness of each lobe 9 Thictness of small at junction with caud- 



From nib - end to pectorals 16 al fin 1 6 



Pectorals to top of bact 4 6 From nib- end to hump 28 



Corner of mouth to nib -end 10 Height of hump 10 



Corner of mouth to top of head 5 4 Length of hump 4 



Eye* to nib-end 10 10 Thictness of blact stin Q\ 



Eye to top of head 4 6 Eye to ear 2 



Spiracles to nib -end 8 Length of ear slit 1\ 



Length of exterior opening of spiracles. . 1 6 Navel to genital slit 5 



The nib -end, or point of the upper jaw, fell short of the extremity of the 



*We refer the reader to fig. 4, plate x, for forty -six feet in length. The figure is drawn 

 illustration of an eye taten from a Humpbact to natural size. 



