Sperm Whale and other Cetaceans. 153 
The fourth specimen was from a young animal, said to have 
been 18 feet long, and to have made 14 bbls. of oil; taken 
within three days’ sail of Nantucket. It was about 5 feet 8 
inches in length, and had 23 teeth on each side, but, as these 
were cemented in, the number cannot be so fully depended 
upon ; all of them were pointed. 
The sixth specimen, which is in the Society’s Cabinet, is 
5; feet in length, 2 feet 9 inches between the articulating sur- 
faces, and the same to the back tooth. The teeth, which are 
connected by a strip of dried gum, and are perfectly loose in 
the sockets, are 25 in number on the right side, and 24 on 
the left, besides an anterior one on the left side, which has 
evidently been lost; all of them pointed, and some hardly 
Piercing the gum. With the jaw, is the entire cranium, 6: feet 
long, and corresponding generally with G. Cuvier's description 
and figures (Oss. Foss. vol. v. pl. xxiv.) ; the petrous portion 
of the temporal bone, however, remains on one side, and, in- 
Stead of being free, as usual in the cetaceans, is as closely 
connected with the base of the skull as any other bone. 
The seventh specimen (these three last were examined by 
D r. Wyman) was 15! feet in length on the median line, 5 feet 
1 inch between the articulating surfaces, and 4 feet 9 inches to 
the back tooth. On the right side 26 teeth; on the left 25, 
ides a back one, which seems to have been removed. ` 
The eighth specimen is 7: feet in length, between the 
articulating surfaces 3 feet 8 inches, and to the back tooth 3 
feet 2 inches ; 24 teeth on each side. 
The ninth specimen is 8 feet 2 inches in length, between 
articulating surfaces 4 feet 2 inches, and to the back tooth 
3 feet 8 inches; 23 teeth on each side. d 
DISSECTION OF A FGETAL DOLPHIN. aga 
About a fortnight after the dissection of the whale, I re- 
ceived from Dr. Storer a specimen of the above, which was sent 
E him by Dr. William Prescott, of Lynn, with the following 
description of the mother, from whom it had just been removed. 
11 ' 
" Da 
E dd 
VOL. v. 
