448 



AMBLTCBHPALID^. 



c. Ventrals 204-215 ; subcaudals 122-135. 



No prseociilar ; two labials entering the 



eye 16. articulata, p. 458. 



A prseocular above the loreal ; three 



labials entering the eye 17. incerta, p. 458. 



3. Vertebral scales not enlarged. 



Ventrals 149-159; subcaudals 41-51; 



no azygous chin-shield 12. turgida, p. 456. 



Ventrals 195 ; subcaudals 129 ; three 



azygous ohin-shields 21. bieolor, p. 460. 



C. Lower labials all separated by chin-shields. 



1. No azygous anterior chin-shield ; vertebral scales mode- 



rately enlarged. 



Ventrals 164 ; subcaudals 113 15. annulata, p. 457. 



Ventrals 212 ; subcaudals 121 18. argus, p. 458. 



2. An azygous chin-shield in contact with the symphysial; 



vertebral scales not enlarged. 



Ventrals 156 ; subcaudals 55 . .' 19. sanniola, p. 459. 



Ventrals 186-193 ; subcaudals 98-126. 20. dimidiata, p. 459. 



Table showing- Numbees of Scales and Shields. 



