THE SNAKES OF BANGKOK, 17 
His measurements refer to specimens in India. The largest one 
that I have seen, taped 600 mm. in total lengil the tail forming 
i105 mm. This suake is very variable in its markings, but I have 
up to the present seen only ona variety in Siam, although I have 
examined specimens from widely separated parts of the country— 
Chiengmai, Den Chai, Lopburi, Bangtaphan and Siracha. It ac- 
cords precisely with Koulenver’s description of the one feand in the 
Peninsula, Jt would appear therefore that the variety found in 
this region does not grow as large as the ones found in India 
Color (in life). Above, greyish brown, with fine pale yellow 
(in spirits, white) reticulaticus, sometimes arranged apon the back 
as distinet cross bars. A triungular y-Llowish bloteh ou either site 
of: the occiput, which may be fused into a collar. Upper labials 
white or yellowish, each seale with a dark spot. Beneath, greyish 
or whitish. 
Hlulitaf, India, Ceylon, Burma and !ndo-Chine to the Malay 
Archipelago. 
13. Pswinmophis condunarus. 
Major Wall calls it the Indo-Burmese Sand-snake* but in no 
way can the title be considered particulariy appropriate to this 
loeality. This handsome snake has not previously been recorded 
from Siam, its nearest known habitut being Pegu and Bassein in 
Burma. It is not common in Bangkok. At Sala Deng, om the 
waste land commonly known as “the Ditches,” there is a sini! 
colony, aud | have seen specimens from other purts of the 
town. My acquaintance with this suake alive is confined to the 
colony just mentioned, and to a certain time of the day when, 
after heavy rain, the sky clears for an hour or two before sunset. 
Then. as it seeking to dry and warm themselves, they climb to the 
topmost boughs of the bushes amongst which they live, and bask 
in the depirting rays. They are very shy and unless approached 
with great caution dive like a flash into the andergrowcth below and 
are lost to sight. I have only once met one on the ground. This 
was by the side of a K!ong, in the heat of the day. and it took 
without hesitation to the water and escaped. When caught first 
* Journal, Bombay Nat. Hist. Society, Vol. XX, No. 3 
