SNAKES. 39 
+t+ Hinder labials large, like others ; scales smooth ; rostral 
rounded, 
25. Hypstrwina. Seventh labial large; eye over fourth and fifth 
labial ; loreal distinct. 
26. Farancia. The seventh labial large; eye over the third and 
fourth labial. 
27. Hyprors. The seventh labial large: eyes over the fourth 
labial ; ventral shield broad; body thick; loreal none. 
28. Hyeina. The seventh labial large; eyes over the fourth la- 
bial; ventral shield narrow; body slender; loreal none. 
29. Dimapxs. 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. Forponia. 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. Hiprtstes. 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. ABAsToR. Body cylindrical; loreal shield none; anterior 
frontal four-sided ; posterior ocular 2. 
34. Raciiria. Head small, conical ; body subcylindrical ; anterior 
frontal very small, triangular; loreal distinct; posterior ocu- 
lar 1. 
35. Mrrauia. “ 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. Frernta. Head small; rostral plate large, produced between 
the frontal, angular and recurved in front. 
E? 
