I 7 I 



* Limbs meeting or overlapping; 

 tail as long as head and body; 



rostral very low 9. Z. modiglianli p. 175. 



** Limbs not meeting; tail much 



longer than head and body . . . 10. Z. malayanum p. 176. 

 ft 30 32 scales round the body ; inter- 

 parietal very large II. Z. consobrinum p. 176. 



2. Dorsal scales larger than ventrals. 

 aa. 20 smooth lamellae under the fourth 

 toe; 32 scales round the body; 

 interparietal smaller than fronto- 



parietals 12. Z. rufuni p. 177. 



bb. 22 smooth lamellae under the fourth 

 toe; 24 scales round the body; 

 interparietal as long as fronto- 



parietals 13. Z. buttlkoferi p. 177. 



cc. 28 smooth lamellae under the fourth 

 toe; 30 scales round the body; 

 interparietal as long as fronto- 



parietals 14. Z. maindroni p. 178. 



dd. 29 smooth lamellae under the fourth 

 toe; 34 scales round the body; 

 interparietal as long as fronto- 



parietals. 15. Z. shelf ordi p. 179. 



b. Praefrontals separated. 



1. No regular nuchals; some enlarged 

 scales bordering the parietals. 



f 26 scales round the body; 18 20 



smooth lamellae under the fourth toe 1 6. Z. emigrant p. 179. 

 ft 26 scales round the body ; 22 smooth 



lamellae under the fourth toe ... 17. Z. tenuiculum p. 1 80. 



2. One or more pair of large, transverse 

 nuchals. 



a. 22 scales round the body 18. Z. minutum p. 181. 



b. 24 scales round the body, the 2 

 vertebral series enlarged, more than 

 twice as broad as long; three pair 



of nuchals 19. Z. nototaenia p. 181. 



c> 26 28 scales round the body, the 

 2 vertebral series enlarged; three 



or four pair of nuchals 20. Z. clegantulum p. 182. 



d. 28 scales round the body; the 2 

 vertebral series more than twice as 



broad as long; six pair of nuchals 21. Z. nigrolineatum^ p. 183. 

 II. Five or more supraoculars. 

 a. One anterior loreal. 



t 20 30 scales round the body; (one) 

 three or four pair of nuchals. 



