776 MR. M. A. SMITH ON ASIATIC 



II, Somo or all of tlio lateral scab-rows directed obliquely. 

 a. Two prioanul shields. 



Frontal and fronto-iiasnl entire, 4tli supralabial 



largest, dorsal scales strongly niucronate T. assamensis. , 



Frontal and fronto-nasal entire, 4tli supralabial 



largest, dorsal scales not mucrouate, median row 



bicarinate T.liainanus. 



Frontal and fronto-nasal entire, otli supralabial 



largest T. cocincincnsis. 



Frontal entire, fronto-nasal divided T. sinious. 



Frontal and fronto-nasal divided P. thai. 



I. Three prajanal shields T. microlepis. 



The separation of many of the forms here mentioned is ex- 

 tremely slight, and depends sometimes upon a single scale- 

 character. "Most of them have a limited range of distribution, 

 and, so far as I am aware, no two forms have yet been found in 

 the same locality. 



1. TllOPIDOPIIOnUS DEllDMOREI. 



Aspris herdmorei Blyth, Journ. Asiat. Soc. Bengal, 1853, xxii. 



p. 6r>i. 



Tropidopliorus herdmorei Theob. Journ, Linn. Soc. 1868, p. 24 ; 

 Anderson, Zool. lies. Yunnan, 1878, p. 796, pi. Ixxvi, fig. 3; 

 Bouleng. Oat. Liz. Brit. Mus, 1887, iii. p. 362 ; Annandale, llec. 

 Ind. Mus. 1912, viii. p. 59 ; Mlcm. Smith, Journ. N. 11, S, Siam, 

 1919, iii. p. 225. 



Tropidophbrus yunnanensis Bouleng. Oat. Liz. Brit. Mus. 1887, 

 iii. p. 362 ; Mlcm. Smith, Journ. N. H. S. Siam, 1919, iii. 

 p, 224. 



Through the kindness of Dr. Annandale, Director of the 

 Indian Museum, 1 have been able to examine the types — three in 

 number — of this species. The specimens are somewhat faded 

 but are otherwise in excellent preservation. One has 32 scales 

 round the middle of the body, the other two have 34 each. In 

 the two smaller specimens the dorsal scales are distinctly, but not 

 strongly keeled, in the largest one I cannot find any keels at all. 

 Anderson, when comparing these types with his specimens from 

 Yunnan*, states that he found keels on all three, and, except 

 for this difference in the carination of the scales, they agreed 

 entirely. H(^ therefore labelled the Yunnan specimens herdmorei. 

 This view should certainly be maintained, and T. yunnanensis, 

 founded later evidently on a misunderstanding, became a 

 synonym of it. 



My own collections of this lizard from Siam, supplemented by 

 an excellent series from Burma in the Indian Museum, have 

 enabled me to examine a large nvimber of specimens. In the 

 number of scales round the body, and in the degree of carination 



* The Yunnan specimens are now lost. Dr. Annandale tells me ho has never been 

 able to discover what biii>peiied to the types of Anderson's vei)tilos and batrachians. 

 Many of them never seem to have been incorporated in the Museum collection. 



