of feet they appear at firft view widely removed from 

 the reft of the Mammalia, yet thefe parts really exift, 

 though not outwardly vifible ; the two anterior fins be- 

 ing furnifhed with bones like the feet of other quadru- 

 peds, and the two pofterior ones (which from their 

 lituation, appear to form but one horizontal caudal fin,) 

 containing the analogous bones of the two hind feet. 

 All the internal parts of this tribe of animals are like- 

 wife formed on the fame plan as in other Mammalia : 

 having fimilar lungs, interlines, &c. They have alfo 

 warm blood, and the females, like other quadrupeds, 

 fuckle their young. The general characters of all the 

 Cetacea are fo fimilar, that, in an enlarged view, they 

 might all form one great genus ; but as this perhaps 

 would not facilitate the distinction of the feveral fpecies, 

 Linnaeus and moft other modern naturalifts have agreed 

 in dividing the cetaceous animals into different genera, 

 diftinguifhed by fecondary characters, as the fituation 

 of the teeth and of the fpouting-hole or fiftula on the 

 head. This distribution admits of four diftinct genera, 

 viz. Monodon, Balana, Phyfeter, Delphinus. Of thefe 

 the genera of Balaena and Phyfeter are the two principal, 

 and contain the largeft animals. The Balaena Myftice- 

 tus, or great northern Whale, is as it were the chief 

 of the whole tribe, and (unlefs the Kraken be not a fa- 

 bulous exigence,) is the largeft of all known animals 

 either of land or fea. Before the northern whale-fifhe- 

 ries had reduced the number of this fpecies, it was no 

 very uncommon circumftance to find fpecimens of an 

 hundred feet in length. Thefe are now rarely feen, and 

 It is not often that they are found of more than fixty 

 feet. 



In 



