212 DR. MALCOLM SMITH ON 



tympanum more distinct, and the dorsolateral fold present only half 

 way down the back. 



Rani, aenea is nearest to R. palava/rwmsis Boulenger, from 

 the Malay Archipelago. It differs from it in the smaller and less 

 distinct tympanum, in the smaller digital discs and shorter 1st 

 linger, in the convergence of the dorso-lateral folds and in 

 colouration.* 



Type presented to the British Museum ; paratype in my own 

 collection. 



Foot 20 22 



Rana nigrovittata (Blyth). 



liana nigrovittata, Bouleng., Rec. Ind. Mus., 1920, xx, p. 144; 



Smith, P. Z. S. 1921, p. 433. 

 Rana mortenseni, Bouleng., Rec. Ind. Mus., 1920, xx, p. 135. 



In P. Z. S. 1921, I endeavoured to show that R. nigrovittata 



(Blyth) and R. Tnortenseni Boulenger were very closely related to 



each other. The chief point of distinction between them was, that 



while the male of the former had external vocal vesicles, that of the 



latter had internal. In many of my specimens of nigrovittata 



I had found a blackened patch of skin on either side of the throat at 



•Compared with two specimens from N. Borneo. 



JOURN. NAT. HIST. SOC. SUM. 



