THE 



JOURNAL 



OF THE 



Natural History Society of Siam. 



Volume IV. Bangkok. Number 4. 



NOTES ON REPTILES AND BATRACHIANS FROM SIAM AND 

 INDO-CHINA, (No. 1). 



By Malcolm A. Smith, f. z. s. 



With plate 8. 



Testudo impressa = Testudo latinuchalis. 



Natrix nigrocinctus = Tropidonotus eisenhoferi. 



Natrix groundwateri, sp. nov. 



HolarcJius longicauda = Simotes longicauda joynsoni. 



Lygosoma vittigerum kronfanum, ssp. nov. 



Bana aenea, sp nov. 



Bana nigrovittata = Bana mortenseni. 



MicroJiyla butleri = Microhyla latastii. 

 The present article contains descriptions of three new forms : — 

 (1) A new snake (Natrix groundwateri) from the extreme south of 

 Siam, obtained by the Robinson and Kloss expedition to that part of 

 the country in 1919, (2) a new race of the small but handsome 

 scink, Lygosoma vittigerum, obtained by myself on the Langbian 

 plateau, S. Annam, in 1918, and (3) a new frog, Rana aenea, found 

 by my native collector when accompanying Messrs. Carthew and 

 Godfrey on a trip to the extreme north of Siam early in 1921. 



Judging by the results of expeditions which have been under- 

 taken in Siam during the last few years, it would seem as if the 

 herpetological survey of the country was nearing completion. New 

 forms will still no doubt be found upon the higher hills, particularly 

 in the Nakon Sritamarat range and along the Burma frontier, where 

 many peaks still remain unexplored. The genus Philautus, in par- 

 ticular, should repay investigation. The small frogs included under 

 this group confine themselves almost entirely to mountain streams, 

 and in Siam, are seldom found below the 700 metre level. Their 

 diminutive size, protective colouration and nocturnal habits, make 

 them extremely difficult to find, and unless a definite search is made 

 for them they are seldom seen. They arc best found by hunting for 



