ANATOMY. OF BALiENOPTEBA EOSTBATA. 
205 
The subsidiary plates varied in number from one to six or seven for each pulp ridge, 
and occupied an extent of from f in the centre to \ of an inch in front, and towards 
the pharyngeal end they disappeared by merging into a series of short and fine bristles. 
The matrix or intermediate pulp was thick, tough, fibrous, and vascular. 
In colour the blades were pale yellow, becoming slightly bluish at the base ; on 
removing the pulp from the base of each lamina, the latter was divisible into an external 
horny whitish yellow cortical substance, and an inner fibrous or bristly portion of a 
purplish-blue colour ; this layer, by protruding beyond the external lamella, formed the 
terminal fringe of bristles. 
On removing the pulp from the attached margin of the baleen plates, it became 
obvious that just at the point of contact between the larger laminae and the subsidiary 
plates, the bases of both were transversely united for about half a line in extent, and a 
similar transverse union existed at every interval between the different blades. 
The following Table contains the measurements of the animal as compared with those 
of Hunter and Knox : — 
Specimen. 
Hunter’s. 
Knox's. 
ft. in. 
ft. in. 
ft. in. 
Total length of the animal from point of snout to the bifurcation 
of the tail 
13 11 
17 0 
9 11 
Total length from point of snout to extreme point of fluke of tail . . 
14 4 
Width of tail 
2 10 
5 0 
2 8f 
Length of upper jaw from point of snout to the commissure of the 
lips 
2 4 i 
3 3 
Length of lower jaw from the symphysis to the commissure of the 
2 
lips 
2 9 
2 0 
Distance from point of snout to the anterior angle of the eyelids . 
2 4 i 
3 4 
Length of the, long axis of the eye 
0 2 i 
0 2\ 
Distance from the point of the snout to the anterior boundary of 
the flippers or pectoral extremities 
4 4 
Length of flippers, external to integuments 
1 11 
2 4 
1 3 
Greatest width of flippers 
0 6i 
0 9 
Distance between the flippers measured across the thorax 
2 3 
Distance from the point of the snout to anus 
8 10 
Height of dorsal fin or fluke . . , 
0 6 
Length of dorsal fin 
0 .9 
1 0 
Distance from the bifurcation of the tail to the posterior edge of 
dorsal fin or fluke 
4 4 
2 10 
Distance from point of snout to the anterior commissure of cloaca 
8 4 
Length of the meatus of cloaca 
1 2 
Distance from the bifurcation of tail to the posterior commissure 
of cloaca 
4 4 
4 4 
Length of mammary sulci 
0 3 
Length of blowholes or external nares 
0 U 
Length of median sulcus between external nares 
0 5 
Distance between the posterior extremities of the blowholes .... 
0 2^ 
Distance between the anterior extremities of the blowholes 
0 £ 
Girth of the body, taken 2 feet behind the flippers, the largest part 
6 9 
5 0 
5 2 
Girth at the junction of the tail with the body 
1 6i 
1 0 
Length of the cranium, taken on palate-surface 
3 1 
2 11 
Breadth of the cranium, taken at the articulation of the lower jaw 
1 5 
1 3 
Length from the hamular process of the sphenoid bone to the 
foramen magnum 
0 6 
0 6| 
