202 Journal of the F.M.S. Mii.seiims. [Vol. ,X, 



This curious snake is easily identified by means of the 

 rostral appendages which occur on either side of the snout : 

 for an account of these see Smilli. Journ. Nat. Hist. Soc. 

 Siam, I, 1914, p. 109 and plate. 



To include these the " Synopsis of the Genera " in 

 Mr. Bouleni^er's volume of Reptilia and Batraclia of the 

 Vertebrate Fauna of the Malay Peninsula (p. 158) may be 

 altered as follows : — 



No tentacles on the upper lip 



II. Loreal present ; parietals well developed ; 

 ventrals large, not keeled 



Scales in 19 rows, nasals scmidivided .. Cantoria 

 Scales in 17 rows, navals undivided ... Gerardiu 



With tentacles on the upper lip 



(a single species only) Herpeton 



