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 eye; four lower labials in contact with the anterior chin- 
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 chiefly 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 A 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:—lght 
brown above, white below, with markings as described. 
Total length 345 mm., tail 45. 
29. CERBERUS RHYNCHOPS, Schneid. 
Mocquard, Les Reptiles de ’Indo-Chine, p, 51 (1907). 
Hurria rynchops, Barbour, Memoirs Mus. Comp. Zool ( Harvard ), 
ALITY, No. 1, p: $25: (Nov. 1912). 
Six specimens from Koh Chang, one individual being of a pale 
pinkish-fawn colour. 
30. DiIpsADOMORPHUS CYANEUS, D. &. B. 
Dipsas cyanea, Boulenger, Faun, Brit. Ind., Rept., p. 261 (1890) 
Dipsadomorphus cyaneus, Mocqnard, Les Reptiles de 1’Indo-Chine, 
p- 50 (1907). 
A male and female from Klong Menao. 
The male, 1260 mm. long, contained when caught a freshly 
swallowed 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. Hye 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, EH. of Sriracha. It is nocturnal in its habits, 
remaining by day coiled up among the branches of some bush or tree. 
