244 JOURNAL, NATURAL HIST. SOCIETY OF STAM. Vol. I. 
OPHIDIA. 
19. PYTHON RETICULATUS, Schneid. 
Mocquard, Les Reptiles de l’Indo-Chine, p 42 (1907); Smith, 
Journ Nat. Hist. Soc. Siam, 1, p. 9 (1914). 
One small example was obtained on Koh Chang where it was 
said to be common. The Reticulated Python has been found on most 
of the islands at the head of the Gulf, and is not uncommon on the 
mainland. 
20, CHERSYDRUS GRANULATUS, Schneid. 
Wall, Jour. Bombay. N. H Soc. XXIII, p 372. Barbour, Memoirs 
MOz., Novwl012, XLV, No.1. p. 106. 
One example from Koh Chang; this species is fairly common 
in the Gulf. 
21. PoLyoponropPHIs coLLaRis, Gray. 
One example from Koh Chang. This species, only recently 
recorded from Siam, appears to be widely, though sparingly distri- 
buted throughout the country. 
22. TROPIDONOTUS PISCATOR, Schneid. 
Tropidonotus piscator Mocquard, Les Reptiles de l’ Indo-Chine, p. 47 
(1907). Smith, Journ. Nat. Hist. Soc. Siam, 1, p. 14, (1914). 
Natrix piscator, Barbour, Memoirs M.C.Z., Nov. 1912, XLIV, No, 1 
p. 109. 
Two examples from Koh Chang ; common wherever it occurs. 
23. TroprponoTus cHRYsARGUS, Schleg. 
Faseic. Malay. Zool., 1, p. 161 (1908). 
Four examples from Klong Menao: the longest, 728 mm _ in 
length, appears to be greater than any yet recorded. 
24, 'TROPIDONOTUS NIGROCINCTUS, Blyth. 
Two examples from Klong Yai. The species has also lately 
been obtained in Northern Siam, and at Hup Bon, KE. of Sriracha. 
One of the two from Klong Yai was kept alive for some 
months. It was an active, graceful snake, diurnal in its habits. It 
fed greedily upon frogs and fish, picking the latter out of the water 
and bolting them with great rapidity. 
Colour (in life). Above, olive-green anteriorly, olive-brown 
posteriorly, with faint, narrow blackish cross-bars. Head copper 
coloured, paling on the sides. An oblique black band below the eye, 
another behind it anda third upon the neck. Belly white, beneath 
a 
