834 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XIX. 



which come prominently into view when the snake dilates itself. The 

 dentition in my skulls is as follows : — Maxillary 2 or 3 small teeth 

 followed by 2 large and fang-like ; succeeded by 5 or 6 small and 

 subequal, and then 2 large, grooved, obliquely placed, fang-like teeth. 



Palato-pterygoid, 8 to 10 + 22 to 25 ; small, subequal. Mandibular 

 2 or 3 small followed by two large and fang-like: then 13 to 16 

 small teeth. 



Dryophis prasimis (Boie). 



Of six specimens, one was captured in Dibrugarh, one in Sadiya, 

 one near Jaipur (Namsang), and three in North Lakhimpur (Dejoo 

 and at foot of Duffla Hills). The Dibrugarh, Sadiya and Dejoo 

 specimens were green, i.e., forma typica, the rest buff, or drab 

 colour. This latter is a distinct colour variety, which appears to 

 have escaped being christened. I propose for it the name flavescens. 



In the eggs noted above, though so large, there was no trace of 

 embryos. It will be noticed that in the $ the costals reduce 

 posteriorly to 11, but in the 9 only to 13. This is no coincidence, for 



