334 



COLUBRID^. 



C. Scales in 15 rows. 



1. Erontal once and three fourths as long as broad ; ventrals 



160 ; subcaudals 25 13. punctata, p. 341. 



2. Frontal not more than once and a half as long as broad. 

 a. Eye at least as long as its distance from the mouth. 



a. Nasal in contact with the praeocular. 



Ventrals 140-170 ; subcaudals 22-33 . . 14. gouUii, p. 342. 

 Ventrals 170-200 ; subcaudals 30-46 . , 15. nigrescens, p. 343. 

 Ventrals 180-184; subcaudals 50-64 .. W. nig rostriata, -p. 343. 



^. Second labial in contact with the prsefrontal ; ventrals 

 166-183; subcaudals 31-43. 



17. earpentarice, p. 344. 



h. Eye hardly as long as its distance from the mouth ; 

 ventrals 170-178 ; subcaudals 37-38. 



18. palUdiceps, p. 344. 



IV. Anal divided ; frontal much broader than the supraocular, as 

 long as broad or a little .longer than broad; ventrals 164-172; 

 subcaudals 38-49. 



Scales in 15 or 17 rows ; subcaudals 



single 19. melanura, p. 345. 



Scales in 16 rows ; subcaudals single. . . . 20. par, p. 345. 

 Scales in 17 rows ; subcaudals paired . . 21. woodfordii, p. 346. 



Table showins Nttmbbes op Scales and Shields. 



