152 



1. Rostral almost as broad as deep; 

 ventrals 133 151; subcaudals 



12 23 21. C. leucogaster p. 164. 



2. Rostral as broad as deep; ventrals 



178; subcaudals 26 22. C.quinquetaeniata p. 164. 



3. Rostral slightly more broad than 



deep; ventrals 247; subcaudals 14. 23. C. albopunctata p. 165. 

 XX Frontal more than twice as broad as the 

 supraocular. 



1. Ventrals 143 152; subcaudals 24 29. 24. C, bicolor p. 165. 



2. Ventrals 147 155; subcaudals 23. ... 25. C. brocket p. 166. 



3. Ventrals 154; subcaudals IO 26. C. sondaica p. 166. 



4. Ventrals 182 210; subcaudals 9 19. . 27. C. brachyura p. 167. 



5. Ventrals 232 265; subcaudals 10 30. 28. C. collaris p. 167. 



b. A praeocular; no postocular 29. C, lateralis p. 168. 



c. A praeocular; two postoculars 30. C. beccarii p. 168. 



d. No praeocular. 



1. Ventrals 142; subcaudals 29; uniform yel- 

 lowish inferiorly 31. C. rebentischi p. 169. 



2. Ventrals 150 152; subcaudals 22 23; tail 



with a dark median streak below 32. C. ceramensis p. 169. 



3. Ventrals 187 194; subcaudals 14 16; ven- 

 trals with blackish spots on their outer ends. 33. C. mecheli p. 169. 



BB. Frontal as broad as long. 



t First lower labial in contact with its fellow. 

 aa. Rostral as broad as deep; ventrals 157; 



subcaudals 22 34. C. picteti p. 170. 



bb. Rostral more broad than deep. 



1. Praeocular present; ventrals 136 171; 



subcaudals 19 45 35. C. leucocephala p. 171. 



2. No praeocular; ventrals 135 174; sub- 

 caudals 21 38 36. C. agamensis p. 171. 



cc. Rostral more deep than broad. 



1. Ventrals 140; subcaudals 27 37. C. semiannulata p. 172. 



2. Ventrals 164; subcaudals 22 38. C. doderleini p. 172. 



ft Mental in contact with the chin-shields. 



1. Praeocular present; ventrals 170; sub- 

 caudals 22 39. C. bungaroides p. 173. 



2. No praeocular; ventrals 138; subcaudals 33. 40. C. schlegeli p. 173. 

 II. Four upper labials, second and third entering 



the eye. 

 a. Frontal more long than broad. 



t Mental in contact with the chin-shields. 



