246 JOURNAL, NATURAL HIST. SOCIETY OF SIAM. Vol. I. 



of snout, equal to the parietals ; loreal longer than deep ; one prae- 

 and two post-oculars ; temporals 1 + 2 ; seven upper labials, fourth 

 entering the ej^^e ; four lower hxbials in contact with the anterior cliin- 

 shields, which are about twice as long as the posterior. 



Scales in 15 rows, smooth throughout. Ventrals 172 ; anal 

 entire ; subcaudals 32. 



Colour in life: — dull sealing-wax red above with numerous ill- 

 defined blackish cross-bars, the colour of which is chieflj^ confined to 

 the edges of the scales. Upper side of head brownish with a darker cross 

 band passing through the eye to the fourth and fifth labials, a dark 

 spot on the frontal, an oblique dark bar from the parietals to the side 

 of the neck, and a large ^ shaped marking from the frontal shield to 

 the nape. Labials and lower parts pink, with a series of dark quad- 

 rangular spots on each side of the ventrals. Colour in spirit: — light 

 brown above, white below, with markings as described. 



Total length 345 mm., tail 45. 



29. Cerberus rhynchops, Schneid. 



Mocquard, Les Reptiles de I'lndo-Chine, p. 51 (1007). 



Hurria ryncliops, Barbour, Memoirs Mus. Conip. Zot)l ( Harvard ), 



XLIV, No. 1, p. 123 (Nov. 11)12). 



Six specimens from Koh Chang, one individual being of a pale 



pinkish-fawn colour. 



30. DiPSADOMORPHUS CYANEUS, D. &. E. 



Dipsas cijdneu, Bonlenger, Faun. Erit. Ind., Rept., p. S61 (1890) 

 Dipmdomorj)])us cyanens, Mocqnard, Les Reptiles de I'Jiido-Cliine, 

 p. 50(1907). 



A male and female from Klong Menao. 



The male, 1260 mm. long, contained when caught a freshly 

 Bwallowed female, 1350 mm. in length. 



The anterior palatine teeth are considerably larger than the 

 posterior. 



Emerald-green above, with the skin between the scales purplish 

 black ; yellowish-green below ; chin and throat sky-blue ; inside of 

 mouth purplish black. Eye large and brownish grey. 



This snake, until recently not known from Siam, has been 

 found also upon Koh Phai, where it is not uncommon, and upon the 

 adjoining mainland, E. of Sriracha. It is nocturnal in its habits, 

 remaining by day coiled up among the branches of some bush or tree. 



