132 COLTJBRID^. 



broader than deep; internasals much shorter than the prsefrontals ; 

 frontal once and one third to once and two thirds as long as broad, 

 usually shorter than its distance from the end of the snout, 

 shorter than the parietals ; loreal elongate, not entering the eye, 

 extensively in contact with the internasal ; one prseocular, usually 

 in contact with the frontal ; 2 (rarely 3) postoculars ; temporals 

 small, 2 + 3 or 3 + 3 ; 9 upper labials, third, fourth, and fifth 

 entering the eye ; 4 or 5 lower labials in contact with the anterior 

 chin-shields, which are longer than the posterior. Scales smooth, 

 in 17 rows. Ventrals 178-224, obtusely angulate laterally ; anal 

 divided ; subcaudals 57-80. Brown above, with fine yellow reti- 

 culations ; a yellow collar or a triangular yellow blotch on each 

 side of the occiput; back often with yellow cross-bands bifurcating 

 on the sides, or with a dorsal series of quadrangular yellow 

 blotches ; labials yellow, some or all of them with a brown spot ; 

 'niform white or pale yellow. 



Total length 510 millim. ; tail 110. 



India and Ceylon, Burma and Cochin China to Malay Peninsula 

 And Archipelago. Eecorded from Penang, Singapore, and Kui ; 

 not unfrequeutly found in inhabited houses. Lays 3 to 9 eggs. 



137. Lycodon laoensis. 



Guuth. Ptept. Brit. Ind. p. 317 (1864) ; Boiilenir. Cat. Sn. i, p. 354 

 (1893) ; Laidlaw, P. Z. S. 1901, ii, p. 570. 



Snout much depressed but not spatulate. Eostral much 

 broader than deep ; internasals much shorter than the prsef rontals ; 

 frontal once and one third to once and a half as long as broad, as 

 long as its distance from the end of the snout, shoi'ter than the 

 parietals ; loreal elongate, separated from or but just touching the 

 internasals ; one prseocular, in contact v\ith the frontal ; 2 post- 

 oculars ; temporals small, 2 -1- 3 ; 9 upper labials, third, fourth, 

 and fifth entering the eye ; 4 or 5 lower labials in contact with 

 the anterior chin-shields, which are longer than the posterior. 

 Scales smooth, in 17 rows. Ventrals 175-185, obtusely angulate 

 laterally ; anal divided ; subcaudals 67-73. Dark brown above, 

 with a whitish cross-band on the occiput and others on the back, 

 which bifurcate on the sides ; lower parts white. 



Total length 470 millim. ; tail 100. 



Siam, Malay Peninsula (Kota Bharu, Kelantan and Jalor, 

 Patau i States). 



138. Lycodon effrenis. 



Cantor, Journ. Asiat. See. Bengal, xvi,p. 917, pi. xl, fig. 2(1847); 



Bouleng. Cat. Sn. i, p. 356 (1893). 

 Tetragonosoma effrene, Giintb. Kept. Brit. Ind. p. 320, pi. xxiv, 



fig. K (1864). 



Snout much depressed, subspatulate. Rostral twice as broad as 

 deep ; internasals half as long as the praefrontals ; frontal once 



