'3 9 3 Mr. Hunter’s Obfervatlons on the 
connected with their mode of catching the food, and adapting 
anddifpofing it for being fwallowed. It is probable, that thefe 
animals do not require either a divifion of the food, or a matti- 
cation of it in the mouth, but fwallow whatever they catch, 
whole ; for we do not find any of them furnifhed with parts ca- 
pable of producing either effedh The mouth in mott of this 
tribe is well adapted for catching the food ; the jaws fpread 
as they go back, making the mouth proportionally wider than 
in many other animals. 
There is a very great variety in the formation of the mouths 
of this tribe or animals, which we have many opportunities of 
knowing, from the head being often brought home when the 
other parts of the animal are rejettted ; a circumftance which 
frequently leaves us ignorant of the particular fpecies to which 
it belonged. 
Some catch their food by means of teeth, which are in 
both jaws, as the Porpoife and Grampus ; in others, they are 
only in one jaw, asln the Spermaceti Whale ; and in the large 
Bottle-nofe Whale, defcribed by Dale, there are only two final! 
teeth in the anterior part of the lower jaw. In the Narwhale 
only two tufks in the fore part of the upper jaw * ; while 
in fome others there are none at all. In thofe which have teeth 
in both jaws, the number in each varies confiderably ; the fmall 
Bottle-nofe had forty-fix in the upper, and fifty in the lower ; 
and in the jaws of others there are only five or fix in each. 
The teeth are not divifible into different claffes, as in qua- 
drupeds ; but are all pointed teeth, and are commonly a good 
deal fimilar. Each tooth is a double cone, one point being 
* I call thefe tulks to diftinguilh them from common teeth. A tufk is that 
kind of tooth which has no bounds fet to its growth, excepting by abrafion, as 
the tulk of the Elephant, Boar, Sea-horfe, Manatee, &c. 
fattened 
