1922] Smith: Reptiles and Batrachians. 281 



of the back ; limbs with dark cross bars, and a dark patch 

 enclosing the vent and extending along the back of the 

 thighs. Below yellowish, spotted and speckled with brown. 



From snout to vent 17 mm. 



Variation. Five examples from the type locality 

 (author's numbers 5934 to 5938 inclusive) and one more 

 from Kuala Teku (5942) do not show much variation from 

 the type specimen. The tympanum is not so distinct in 

 two examples ; in one the series of tubercles along the 

 doso-lateral region is very conspicuous, and there is in 

 addition another series along the hinder side of each thigh 

 as in K. pleuro stigma. Two specimens have a pink tinge 

 upon the upper parts ; the dark forked mark on the back 

 varies considerably both in extent and shape. 



Kalophrynus robinsoni is related to K. heterochirus 

 Boulenger, from Borneo, from which it differs in the 

 shorter hind limb, shorter third finger, the strongly 

 tubercular skin and distinctive colouration.^ 



The specimens here described are evidently very 

 young. Their characters however are quite distinct 

 The dermal ridge across the palate behind the choanae 

 it obtusely V shaped and interrupted in the mid-line, as in 

 K. pleiirostigma ; the ridge in front of the oesophagus is 

 pronounced and strongly denticulate, while the one anterior 

 to it is curved and less strongly denticulate. Boulenger's 

 figure of K. pleurostigma in F.M.P., 257, represents the 

 anterior ridge as a continuous curve. In 22 specimens in 

 my collection from various parts of Siam and Indo-China, 

 it is in each one interrupted in the mid-line for some 

 distance. Miss Procter informs me that the palatal ridge 

 of K. heterochirus is almost straight, and is just inter- 

 rupted in the middle. 



Microhyla butleri Bouleng. 

 F.M.P., p. 261. 



One juvenile from Kuala Teku ; four adults from 

 Eraser's Hill. 



Recently also I have examined a specimen frorn the 

 He-Ho plain, Southern Shan States, Burma, sent me by Dr. 

 Anandale ; a considerable extension of the known 

 geographical range of this frog. 



Microhyla berdmorei (Blyth). 

 F.M.P., p., 263. 



Two juveniles, one from Kuala Teku, the other of 

 unknown origin — the label being lost. It is certainly 

 however from somewhere on this mountain. 



This specimen a $ (No. 6050) is somewhat remarkable, 

 in that although only 17 mm. in length from snout to vent 



1. Kindly compared for me by Miss Procter with the type 

 specimen, now in the British Museum. 



6 



