LIZARDS. 231 



ff Ears exposed. 



8. GoNYOCEPHALus. Scales of the belly smooth, of the back un- 

 equal. Eyelids angular, produced. 



9. DiLOPHYRus. Scales of the belly smooth, of the back equal. 



Eyebrow rounded, simple. 



10. TiARis. Scales of the belly keeled, of the back unequal. 

 Eyebrow and paratoids unarmed. 



11. AcANTHOsAURA. Scalcs of the belly keeled, of the back un- 

 equal. Eyebrows and paratoids armed. 



*** Toes D-b. Tail luith hroad rhombic keeled scales beneath. 



Scales of back uniform. 



12. Bronchocela. Nuchal crest simple. Scales in descending 

 series. 



13. Salea. Nuchal crest double. Scales large, in longitudinal 

 series. 



14. Calotes. Back crested. Scales in ascending series. Head 

 swollen behind, with 1 or 2 ridges of spines. 



**** Toes 5-5. Tail with truncated^ keeled scales beneath ; scales 



small, keeled, in cross rings. 



15. Chelasonia. Paratoids swollen, armless. Throat lax. The 

 nape and back with a low crest. Tail rather compressed. 

 Face-ridge rounded, with small scales. 



16. Charasia. Paratoids swollen, with some spines above. The 

 nape and back with a low crest. Tail tapering. Face-ridge 

 distinct, with enlarged imbricate scales. 



17. GiNDALiA. Paratoids rather swollen, with 2 or 3 spines 

 above. Nape and back not crested. Tail tapering, round. 

 Face-ridge indistinct. 



B. Femoral pores distinct. 



a. Scales rhombic, placed in rings. Toes fringed on each side. 

 Back crested. Throat lax, folded across. 



18. Lophura. Back and tail with a fin-like crest, supported by 

 bony rays. Head squarish. 



19. Phrysigxathus. Back and tail with a crest of compressed 

 scales. Head swollen behind. 



b. Scales irregular, imbricate, Australian. 

 * Neck with a frill-like expansion on each side. 



20. Chlamydosaurus. Head rhombic. 



X 2 



