24 



TYPflLOPID^. 



as long as broad or broader than long, ending in a spine. 24 

 scales round the body. Yellowish, with confluent brown spots 

 corresponding to the series of scales and forming longitudinal 

 lines which are broader than the interspaces. 



Total length 200 millim. 



Andamans. 



a-b. Ad. Table Id., Andamaus. E. W. Gates, Esq. [P.]. (Types.) 



19. Typhlops siamensis. 



Typhlops siamensis, Giinth. Rept. Brit. Ind. p. 175, pi. xvi. fig. D 

 (18G4). 



Snout rounded and moderately projecting ; nostrils lateral. 

 Rostral narrow, its upper portion hardly one third the width of the 

 head, extending to the level of the eyes ; nasal semidividcd, the 

 cleft strongly curved and proceeding from the second labial ; a 

 prjBocular, nearly as large as the ocular ; eyes distinct ; upper head- 

 scales a little larger than those on the body ; four upper labials. 

 Diameter of body 33 times in the total length ; tail not quite as 

 long as broad, ending in a spine. 22 scales round the body. 

 Brownish above, yellowish inferiorly. 



Total length 166 millim. 



Siam. 



a. Ad. Siam. M. Mouhot [C.]. (Type.) 



20. Typhlops nigroalbus. 



Typhlops nigroalbus, Dum. Sj- Bibr. vi. p. 295 (1844) ; Cantor, Cat. 

 Mai. Rej)t. p. 51 (1847) ; Ja«, Icon. Gen. p. 20, 1. 4, pi. vi. fig. 3 

 (1864) ; Gmith. Rept. Brit. Ind. p. 172, pi. xvi. fig. F (1864). 



Argyrophis bicolor, Gray, Cat, Liz. p. 136 (1845). 



Snout rounded and strongly projecting ; nostrils lateral. Rostral 

 narrow, its upper portion about one third the width of the eye, 

 extending to between the eyes ; nasal nearly completely divided, 

 the cleft proceeding from the second labial ; a prieocular, a little 

 broader than the ocular, in contact with the second and third labials; 

 eyes distinct; upper head-scales considerably larger than the scales on 

 the body ; four upper labials. Diameter of body 30 to 33 times in 

 the total length ; tail broader than long, ending in a spine. 2Q 

 scales round the body. Upper half black, lower yelloAvish white. 



Total length 360 millim. 



Sumatra and Malay Peninsula. 



