THE SKULL IN THE CHAMELEONS. 



103 



With many Birds the Chameleon agrees in the position of the nasal glands, which is 

 a correlate of the azygous vomer, and the suppressed septo-maxillaries : yet many Birds 

 have two vomers originally ; the Chameleon has only one from the first. 



In mere form, the head of the Chameleon resembles that of many high-skulled 

 Teleostean Fishes ; but the height is obtained by very different methods in the two types 

 of skull. 



In conclusion, it is self-evident that the Chameleons are a very isolated group of 

 Lizards. Like Snakes, they are low in certain respects, and yet in others are specialized 

 to the utmost. 



List of Abbrevutions. 



The Roman figures in the Plates indicate the nerves or nerve-foramina. 



