11 
DESCRIPTION OF A NEW FROG, (RANA MIOPUS) FROM SIAM. 
By G. A. BoULENGER, LL.D., F.R.S. 
* (Published by permission of the Trustees, British Museum ). 
Dr. Malcolm Smith has recently recorded Rana humeralis 
Boulenger, from Siam (Khao Wang Hip and Nakon Sitamarat ), and 
has been so kind as to send me one of the specimens, an adult 
female from the latter locality. I first thought [ could confirm his 
identification, but a more careful comparison, which I have just made, 
with types of A. hwmeralis has convinced me that the Siamese frog is 
specifically distinct, and I propose for it the name FR. miopus. 
R. miopus differs trom R. hwmeralis in the shorter limbs, the 
tibio-tarsal articulation reaching only the centre of the eye; the tibia 
is a little less than half the length from snout to vent, and the 
hand and foot are shorter, as may be seen from the following measure- 
ments of female specimens of the same size (1, Tienzo, Upper Burma; 
2, Nakon Sitamarat). The toes are less fully webbed, two phalanges of 
the fourth being free; the proportions of the fingers are different; the 
loreal region is more oblique, and the interorbital region is a little 
narrower than the upper eyelid. 
Measurements, in millimetres. 1. Z. 
PPGat) SONG AES VEMEs 2.scncwdien bese seo veceddpesn. 73 79 
BAGG OE OIE oes car ae ae ane vedierscndedtocaciuceews 24 25 
We MULE GE heel sco! tae dL Sa et ee 24 25 
re tilCL ABS Aue ae Pee ene Rap 6 Re ee® Cee eee ne 10 9 
MY Ce uence in cee ss Misen ae SN te A ekn oan waits 8 8 
Sateruriitel. wanthyc 6.52. a tall 5) 9) 
FUCTTD OLD eine Ah ORS Re eae Te RE REE 5.5 6 
Pine Loan ye ts Se chs daca o cae boa cepsen goeents 50 46 
BRE ERS DIST os Bio bin fn aaccds Coe oe Sno tS unm Sas ainue's 11 11 
AMES fot Laon te ran conde cette destin sen seame aesedaas 1U 8 
STi) NS da Pee PEN eho alin OMEN ES OAT TE NAN otk oR 15 12 
BGP emt AGEs cates Seiten Jue” Jol ade Maeno 11 7 
1 rs See a AEP eR oe 127 108 
SEM ae eecred oc ch bad Seam aaa aae Lt heuldane tedls 40 35 
Paar ar, ee soc aldakus aeerav en esceees aes 43 33 
pinUn ete ae on Se. 8, Sok ot stee Bente pa tvanncpaas 25 16 
LN AE Ge akc aa aa re ede he See ROC =r 306 a 
sai eto a eaiee | ay: TPP Gi he ths Were hc Pe eee 27 18 
VOL. III, NO. I, 1918, 
