1922] Smith: Reptiles and Batrachians. 273 



Rana luctuosa (Peters). 

 F.M.P., p. 238. 

 Fourteen examples from Fraser's Hill. 



Rana miopus Bouleng. 



Rana miopus Bouleng., Journ. N.H.Soc. Siani, 1918, III, p. 11 ; 

 idem, Rec. Ind. Mus., 1920, XX, p. 149. 



Rana lateralis, Laidlaw, P.Z.S., 1900, p. 886, pi. LVII, figs. 1 & 2 ; 

 Bouleng. (in part) F.M.P., 1912, p. 239. 



Two adult males (Nos. 5911 & 5912) from Kuala 

 Tembeling, and 1 juvenile (No. 6037) from Kuala Tahan. 



Originally discovered in the mountains of Nakon 

 Sritamarat, Peninsular Siam, this frog was described from 

 an adult female specimen and a juvenile. A male taken 

 at the same time, and until recently in my possession,* 

 agrees well with these individuals from Gunong Tahan. 

 They have the curious blackish, obliquely-running fine 

 glandular folds across the back which are to be found only 

 in one other species of frog from this region, namely 

 R. lateralis. It turns out also that the frog recorded and 

 figured by Laidlaw from Kuala Aring, Kelantan (P.Z.S., 

 1900) as this latter species, must be referred to miopus. 

 Miss Procter has kindly examined this specimen, now in 

 the Museum at Cambridge for me, and confirms my 

 suspicions as to its identity. 



In the three males examined by me the canthus 

 rostralis is distinct ; the hind limb reaches to between 

 the nostril and the eye ; the skin of the back is smooth 

 in one and more or less studded with minute horny 

 tubercles in two. 



The vocal sacs are very prominent, appearing as 

 distended pouches through a slit on either side of the throat 

 in front of the fore-arm. They have a large fiat oval gland 

 at the shoulder and a thick pad on the inner side of the 

 first finger. 



Colour. Greyish-brown above and on the side, the 

 glandular dorsal fold not darker ; a dark brown patch 

 enclosing the tympanum ; upper lip lightish ; the limbs 

 with dark bars ; a series of fine black lines running oblicfuely 

 downwards from left to right between the dorso-laleral 

 folds. Below yellowish-white. 



The juvenile from Gunong Tahan is coloured pink, like 

 the juvenile from the type locality. 



As the Kuala Aring specimen is the only record of 

 Rana lateralis in the Malay Peninsula, it must disappear 

 from the fauna of this region. 



* Now in the British Museum of Natural History. 



