16 



NILS GYLDENSTOLPE, THE SWKDISH ZOOLOGICAL EXPEDITIONS TO SIAM. 1. SNAKES. 



This species seems to be nocturnal in its habits which is also stated by Dr. 

 Smith. The specimens were always collected verv early in the mornings. It is verv 

 sluggish and never made any attempt to move ont of the way. 



N:o 



Locality 



Vrntrals 



Sub- 



caudals 



Total 

 length 



Tail 



Scales 



Sub- 

 ocular 



Temporal U. 



labials 



1 



Bangkok- .... 



189 



41 

 41 



(530 mm. 



80 mm. 



21 



1 



2 4 2 



8 



•j 



Bangkok .... 



178 



49 

 49 



645 » 



100 » 



21 



1 



2 4- 3 



8 



3 



Bangkok .... 



173 



50 

 50 



325 » 



50 



21 



1 



2 + 3 



8 



4 



Hat Sami k . . . 



177 



37 

 37 



380 » 



4S 



21 



1 



2 + 3 



8 



5 



Chieng Mai . . . 



177 



47 

 47 



063 • 



98 » 



21 



1 



|2 ■ 2 

 (2 4-3 



s 



22. Simotes violaceus Cant. 



One specimen, Chieng Ilai. Northern Siarn. J fa 1914. 



Not recorded from Siarn before, but Movhot obtained it in Cambodia. It haa 

 also been found in Bengal, Assam, Burma and Southern China. 



My specimen, which belongs to Var. A. in the Catalogue Brit. Mus., haa the 

 portion of the rostral seen from above shorter than its distance to the frontal. The 

 suture between the internasals is as long as that between the pnefrontals. Theie is 

 only 1 pra30cular and 1 small subocular on one side and 2 prseoculars and 1 small 

 subocular on the other; 2 postoculars; 1+2 temporals on one side and 2 + 2 on the 

 other; 7 upper labials on one side and 8 on the other; 4 th upper labial entering the 

 eye on one side and 4 th and 5 th on the other; 4 lower labials are in contact with 

 the anterior chin-shields; posterior chin-shields are less than one half the size of the 

 anterior. 



Total length 640 mm. 



Length of tail - ST 



Ventrals = 178. 



Subcaudals 



41 



2:*. Simotes taeniatus var. Mouhoti Bio k. 



Two Bpecimens, Bangkok, 1914 i.M. Smith coll.). 

 Two specimens, Bangkok, i * » 1 1 (December). 



Siamese name: ikjk ngori (M. Smith). 



Boi LBNGBB liar lcccntly (.lounial Xal. Ilist. Soc. of Siarn \'ol. I X:o 2 |>. 69) 

 remarked thal there are two distinot lönns of Simotes tceniatus, one which isdistin- 

 guishable by having 17 rows of scales among other characteristics. This form which 



