376 CLASSIFICATIOX OF REPTILES. 



Lacerta. Toes simple^ without any fringe^ the hindef 

 ones very long ; in general there is a collar of broad 

 scales round the neck ; palate with two rows of 

 teeth ; dorsal and caudal scales smooth, rarely ca- 

 rinated : the Old World. 

 L. viridis Linn. nigra Wolf. 



longicauda Rupp. saxicola Evers. 



Dugesii. Miles, Ed. quadrilineata Gray. 



Lalandii. lb. 



velos Pallas. No collar.* 



ocellata Daud. punctata Gray. 



Senegal ensis Gray? Cuvieri lb. 



Isevis Gray. Hispanicus FUz. 



vivipera Jacq. 



Ameiva Cuv. No collar round the neck ; all the scales 

 of the throat being small ; molar teeth none ; scales 

 of the belly broader than long : the New World. 

 A. punctata. Spis, pi. 23. undulata. Seba,ii. pi. 88. 2. 



Scapteira Fitz. Toes fringed on the external margin ; 

 the claws very long and acute : the Old World, 

 inequalis. Sav. Egyp. pi. 1.10. Knoxii.Miles, Ed.pl. 6. 8. 



Acranthus Wag. Only four toes on the hinder feet; 

 tail round. 



A. viridis Wag. (Lacerta Teyou Daitd.) 



Drac(Fnaf Daud. Tail compressed, surmounted by a 

 double serrated crest ; throat with a coUar of large 

 shields. 

 Guinensis Daud. Amazonicus. Spix, pi. 21. 



ZoNURus (?). " Lizard-like ; ears exposed ; legs four ; 

 femoral pores distinct; head depressed, broad be- 

 hind ; supra-orbital plate expanded ; tail depressed, 

 with whorls of large square-keeled spinous scales ', 

 back with keeled sub-spinose, belly with smooth scales ; 

 five toes on each foot : Old World." — Gray.;}: 

 Z. Novae Guinea. Schlegel, pi. 7. fig. 2. 



* Aberrant species apparently leading to Ameiva. 



+ Is not this the same as the Hydrosaurus of Wagler ? 



I Mr. Gray's definition of this group makes me conclude it is to be the 

 exact representation of Stellio among the thick-tongued lizards ; but, as he 

 brings within it several genera which do not agree with the above defini- 

 tion, I am fearful of inserting the minor divisions. 



