390 BEPTILIA. 



ends of these toes. The length of the whole leg is about half an inch. 

 The hind-legs are exactly similar to these : they are placed near the 

 anus, but are somewhat before that part. 



The animal has a pretty thick cuticle, which is continued over the 

 cornea of the eye, but in this part it is transparent. The lip of the 

 lower jaw, on each side of the mouth, has a thin fold which is turned 

 outwards and downwards, terminating in a thin edge. The lip of the 

 upper jaw on each side is thin and bi*oad, where it laps over that of the 

 under jaw, when the mouth is shut ; but, at the fore part, both lips 

 seem to come simply into contact. 



There are two rows of teeth on each side in the upper jaw, and only 

 one in the lower. The internal [vomerine] row in the upper jaw is 

 placed entirely in the roof of the mouth, and opposite to the tongue. 

 They are small pointed bodies, placed pretty near one another, and 

 standing perpendicular to the general surface of the mouth : they are a 

 little bevelled off on their inner surface, similar to the incisors of the 

 human subject 1 . 



The external nostrils are placed at the anterior point of the head : 

 the internal open at the roof of the mouth, on the posterior ends of the 

 internal row of teeth. There is no external ear. 



The cavity of the fauces is very large, and will hold a considerable 

 quantity of water. The oesophagus is large and short. The stomach 

 looks like a continuation of the oesophagus, being in the same direction ; 

 and, indeed, is only to be distinguished from it by the thickness of the 

 coats, and by its soft, spongy, internal surface at tbe lower end ; 

 towards which it becomes smaller. The first intestine runs on in the 

 same direction for some way, then becomes convoluted, making some 

 pretty quick serpentine turns, and, pretty near the anus, it becomes 

 larger and less serpentine, which part may therefore be called the 

 rectum. The anus is a slit in the direction of the canal, a little pro- 

 jecting, so as to form two protuberant lips, like those in the same part 

 in the newt. 



The lower end of the oesophagus, the stomach, and the whole track 

 of intestines, are connected to the back by a thin membrane. There is 

 no proper mesenteric artery, but the descending aorta sends forwards 

 small branches along the mesentery, &c. to the intestine as it passes 

 along ; and, although the stomach might be supplied in the same 

 manner, yet it has a pretty large branch reflected upwards expressly to 

 its lower end by the aorta descendens. 



! [The aniphiiune has about 20 maxillary, 15 vomerine, and 16 mandibular 

 teeth.] 



