FAIWA AND FLORA, RATBURT, PFTCHABURL 155 



OPHIDIA. 

 Python reticulatus, Schneid. 



POLTODONTOPHIS COLLAEIS, GraiJ. 



This snake, not previously recorded from Siani. appears to be 

 fairly widely distributed throughout the country. 

 Trirhinopolis nuchalis, Blgr. 



Two specimens of this rare snake were obtained near the border 

 at an elevation of 700 m. Details are as follows : — 



No. 1. (sex undermined, owing to damage). Total lengtli, 



1-58 mm., tail 53. Costals 15 throughout, the median scales faintly 



keeled on the posterior part of the bodJ^ Yentrals 141. Sub- 



caudals 24. 



Colour {in spirits). Above purplish brown, most of the scales 



edged with black so arranged across the back as to present a series 



of fairly well-defined circular or oval rings. Below whitish, freely 



speckled with black, and with large, black rectangular spots, placed 



laterally. A black arrowheaded mark upon the nape, beginning at 



the frontal shield, and a pale chevron behind it. Most of the head 



scales edged with black. Chin and throat white. 



No. 2. Male. Total length 458 mm, tail 47. Dorsal keels more 

 stronly marked than in No. 1. Ventrals 132. Subcaudals 24. 



Colour (in sj^i'riis). Light pinkish-brov\n above, the black edging 

 to the scales forming posteriorly, fairly well defined crossbars. Belly 

 only sparely sprinkled with black. The rectangular spots become 

 crescentic in shape in the posterior half. 



The intralabials in this species are unusual, in that the first pair 

 are not in contact with each other, but are separated b}' the chin- 

 shields which are in contact with the mental. 

 Tegpidonotus piscator, Kiihl. 

 Tropidonotus chrysaegus, Schleg. 



This species does not yet appear to have been recorded from the 

 country except from Patani. It is fairly common in the jungle east 

 of Sriracha. 



Coluber radiatds, Schleg. 

 Coluber oxycephalus, Boie. 



A large specimen of this handsome snake was foiind in the Bong- 

 Tee valley. It has not previously been recorded from Siam. 



SiMOTES violac'EUS, Cantor. 



