SNAKES. 39 



"l^ff Hinder labials large, like others ; scales smooth ; rostral 



rounded. 



25. Hypsirhina. Seventli labial large ; eye over fourth and fiftli 

 labial ; loreal distinct. 



26. Farancia. The seventli labial large ; eye over the third and 

 fourth labial. 



27. Hydrops. The seventh labial large: eyes over the fourth 

 labial ; ventral shield broad ; body thick ; loreal none. 



28. Hygina. The seventh labial large ; eyes over the fourth la- 

 bial ; ventral shield narrow ; body slender ; loreal none. 



29. DiMADES. The seventh labial short, small ; eye over third and 

 fourth labial ; loreal none. 



*** Head moderate, depressed ; frontal 3 ; anterior elongate, erect, 

 between the nasals ; seventh smooth ; rostral rounded. 



30. FoRDONiA. Scales broad, rhombic; ventral shield rounded ; 



loreal none ; eye over third labial 



31. Gerarda. Scales broad, rhombic; ventral shields rounded; 

 eye over fourth shield ; loreal square. 



32. HiPisTEs. Scales narrow, flattened; ventral shields keeled at 

 each end ; loreal square. 



**** Head indistinct : frontal 4 ; anterior four-sided, rather 

 smaller ; scales smooth ; body cylindrical. 



33. Abastoe. Body cylindrical ; loreal shield none ; anterior 

 frontal four-sided ; posterior ocular 2. 



34. Kaclitia. Head small, conical ; body subcylindrical ; anterior 

 frontal very small, triangular; loreal distinct; posterior ocu- 

 lar 1. 



35. Miralia. "Head small, conical; body compressed ; frontal 

 plates 2 pairs ; loreal none ; posterior ocular 2." 



***** Head moderate, depressed : frontal shields 2, small, lateral, 

 rostral shield angular, high, erect, between frontals and nasal. 



36. FiciNiA. Head small ; rostral plate large, produced between 

 the frontal, angular and recurved in front. 



E 2 



