124 JOVRNAL, NATURAL HIST. SOCIETY OF SI AM. T^ol I. 



that it would appear to be not uncommon and widely distributed, at 

 any rate in Central Siam. This species is known to extend into Burma 

 and Indo-China and southwards into the Malay Peninsula. In the 

 latter region it is extremely rare ( Boulenger ), whilst in Burma it is 

 uncommon ( Wall ). 



1. 



Koh Si 

 Chang 



Sriracha 



Pak Jong: 



Kanburi 



Lopburi 



Nong Kai 

 Ploi 



Paknampo 



263 



325 



288 

 465 



213 



285 

 260 



220 



18 



25 

 25 

 20 



181 



189 

 173 

 175 



22 



25 



24 



4 infralabials touch anterior chin- 



shields. Tail below thickly 

 spotted with black. 



5 infralabials touch anterior chin- 

 shields. 



Tail immaculate below, except for 

 the usual bands. 



Alt. 800 ft. R. side, 8 upper la- 

 bials, due to division of 3rd. 

 5 infralabials touch anterior 

 chin-shields on R. side, 4 on L. 

 side. Had eaten an earth 

 snake Typhlops nigroalbus. 



5 infralal)ials touch anterior ehiii- 

 shields. Tail thicklj spotted 

 below. 



4 infralabials touch anterior chin- 



shields. 



5 infralabials touch anterior chin- 



shields. 



R. side 6 upper labials, due to 

 fusion of 6 and 7. 5 infralabials 

 touch anterior chin-sliields. 



Nos. 1 — 5 have the usual series of small black dots down the 

 back and do not differ from the recognized description, except that 

 they have in addition a very faint, dark, vertebral line. 



Nob. 7 — 8 constitute a new color variet}^ similar to the var. uni- 

 virgatus of the allied CallopMs macdellandi (Macclelland's Coral Snake). 



