THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIC. 



175 



head from eye to eye was 11 ft. 2 in. In No. 15, $, length 68 ft. 3 in., the length 

 of the blowholes was 18 inches. 



EYE. 



The eyeball in a male Newfoundland Sulphurbottom 71 feet long, as shown in 

 the table on p. 157, was 5 inches in antero-posterior diameter and 4 in. in vertical 

 diameter. The iris was 1-J inches antero-posteriorly and 1 inches vertically. The 

 color of the iris is brown. The pupil is oblong with a straight superior margin. 



The eye in the Newfoundland Sulphurbottom is situated behind and a little 

 above the corner of the mouth, and with the lids forms a semi-elliptical swelling 

 on the side of the head, below which is a quite deep depression, or furrow, directed 

 obliquely downward in front toward the corner of the mouth. On the upper and 

 lower lids are one or two shallow, curved furrows, and at the anterior commissure 

 is a prominent ridge, bounded by a groove above and below, as in S, phy solus. 

 (PI. 16, figs. 1 and 2.) 



CIRCUMFERENCE AND DIAMETER OF BODY AND DEPTH OF THE CAUDAL PEDUNCLE. 



The caudal peduncle, called "the small" by whalemen, is strongly compressed 

 and ends abrupt at its union with the flukes, not gradually diminishing in breadth, 

 as commonly represented in figures. In various specimens of Newfoundland 

 Sulphurbottoms the vertical depth of the caudal peduncle was as follows : 



BALJENOPTERA MUSCULUS (L.). NEWFOUNDLAND. CAUDAL PEDUNCLE. 



The greatest diameter of the body and largest semi-circumference of several of 

 the Newfoundland Sulphurbottoms were measured, with the following results : 



1 At insertion of flukes. 



