544 APPENDIX. 



formed in the second, and the use of the third 

 and fourth is not exactly ascertained. 



The coecum and colon do not assist in pointing 

 out the nature of the food and mode of digestion 

 in this tribe. The Porpoise, which has teeth, and 

 four cavities to the stomach, has no caecum, simi- 

 lar to some land animals, as the Bear, Badger, 

 Raccoon, Ferret, Polecat, &c. neither has the 

 Bottle-nose a coecum, which has only two small 

 teeth in the lower jaw ; and the Piked Whale, 

 which has no teeth, has a caecum, almost exactly 

 like the Lion, which has teeth, and a very dif- 

 ferent kind of stomach. 



The food of the whole of this tribe is, I believe, 

 fish : probably each may have a peculiar kind of 

 Avhich it is fondest ; yet does not refuse variety. 

 In the stomach of the large Bottle-nose I found 

 the beaks of some hundreds of Cuttle-fish. In 

 the Grampus I found the tail of a Porpoise ; so 

 that they eat their own genus. In the stomach 

 of the Piked Whale I found the bones of different 

 fish, but particularly those of the Dog-fish. From 

 the size of the oesophagus we may conclude, that 

 they do not swallow fish so large in proportion to 

 their size as many fish do which we have reason to 

 believe take their food in the same way : for fish 

 often attempt to swallow what is larger than their 

 stomachs can at one time contain, and part re- 

 mains in the oesophagus till the rest is digested. 



The epiploon, on the whole, is a thin mem- 

 brane : on the right side it is rather a thin net- 



