234 COLTJBRID^. 



One postocular ; loreal present ; third 



and fourth labials entering the 



gyg 7. notospilus, p. 239. 



Two postoculars ; loreal present 8. everetti, p. 239. 



2. Nasal undivided ; two post- 

 oculars 9- propinquiis, p. 240. 



B. Anal divided. 

 1. Nasal divided. 



a. No internasals 10. brevicauda , p. 240. 



h. A pair of internasals. 



a. A single postocular 11. dorsalis, p. 241. 



(3. Two postoculars. 



* Ventrals not more than 160, subcaudals not more 

 than 35. 



Portion of rostral seen from above about 

 half as long as its distance from the 

 frontal 12. templetonU, p. 241. 



Portion of rostral seen from above mea- 

 suring about two thirds its distance 

 from the frontal 13- sublineatus, p. 242. 



Portion of rostral seen from above as 



long as its distance from the frontal. 14. ellioti, p. 242. 



** Ventrals 154 or more, subcaudals more than 35. 



Portion of rostral seen from above as 

 long as or a little shorter than its 

 distance from the frontal 15. suhfjriseus, p. 243. 



Portion of rostral seen from above con- 

 siderably shorter than its distance 

 from the frontal 16. vertehrahs, p. 24o. 



2. Nasal undivided. 



Two postoculars ; six upper labials ; 



ventrals 145-151 17. luaandersii, p. 245. 



One postocular; seven upper labials ; 



ventrals 181-229 18. melanocepludus, p. 24b. 



Oligodon dorsale, Berthold, Getting. Nachr. 1859, p. 179, stated 

 to bo from Bengal, perhaps belongs to a different genus. It is 

 described as :— " Grey above, with a white median line, and a curved 

 brown interocular band; white beneath; rostral shield large; 

 scales rhomboidal, smooth, in 13 rows ; ventrals 183, anal single, 

 subcaudals 46 ; tail one fifth of total length." 



