THE WHALEBONE WHALES OF THE WESTERN NORTH ATLANTIC. 175 
head from eye to eye was 11 ft. 2in. 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 44 in. in vertical 
diameter. The iris was 13 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 tlie 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 B. physalus. 
(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: 
BALA@NOPTERA MUSCULUS (L.). NEWFOUNDLAND, CAUDAL PEDUNCLE, 
Depth of Caudal Peduncle. 
Ne: BES Jere ecat Midway between Anus) Midway between Anus} Midway between post. 
and Insertion of and Notch of Base of Dorsal and 
Flukes. Flukes. Insertion of Flukes. 
4 Q re (Oe Rays Says 5' 8” 
18 3 riakee\ Gy ia nate 
9 Q 2’ o” 6! wu 
II 2 pie 6" 16M 
5 4 65 Uy 30 6! Rit 
13 | } 65/11" sarees Gaon 
17 | 4 65' fey G eu 
i | 2 63! 6" eee 6) io! | 
8 fe) 6 1! o” 5 10” | 
| | 
The greatest diameter of the body and largest semi-circumference of several of 
the Newfoundland Sulphurbottoms were measured, with the following results : 
* At insertion of flukes. 
