dd 
16, 8 Taylor: Philippine Amphibia 265 
smali, rounded blackish spots with grayish centers; tip of snout 
whitish, a dorsolateral silver-gray line from tip of snout to end 
of body; sides of head and temporal region dark blackish brown, 
somewhat lighter on sides of body; sides with darker grayish- 
centered spots; a white line from tip of snout to above arm; 
arm with dark purple stripe on posterior side, and a dark stripe 
on underside near insertion; hind limb lighter brown than back, 
strongly barred with blackish to purplish brown; underside of 
foot purplish, the outer tubercle white; belly silvery white; 
chin slightly dusky; hind legs dusky white, below yellowish 
white; posterior part of thigh dark, marbled and reticulated 
with yellowish. 
Measurements of Rana suluensis sp. nov. 
mm. 
Length, snout to vent 47.5 
Length of head 19.5 
Width of head 13.5 
Diameter of eye 6.1 
Diameter of tympanum 4.8 
Tympanum, from eye 1.25 
Eye to nostril : 51 
Length of snout 7.3 
Distance between nostrils 4.6 
Foreleg 30 
Longest finger 13.5 
Hind leg 81 
Femur 238.2 
Tibia 26 
Longest toe 24 
Largest tee disk 11 
Variation.—The chief variation noted is the presence of a 
harrow, glandular, dorsolateral fold on several younger speci- 
mens, which is dim or wanting on older specimens. 
One specimen from the same island was uniformly light brown 
above, with a distinct dorsolateral fold, the back strongly gran- 
ular, the granules of different sizes; upper part of legs strongly 
granular and with longitudinal folds; younger specimens are 
darker on throat and belly, usually lighter on back, the dark 
spots not round. 
Remarks.—This species is related to Rana sanchezi, from Pa- 
lawan, and R. labialis, from Borneo, Java, and Malay Peninsula. 
It differs from these in the lesser extent of webbing between 
toes, in color and markings, and in the smaller finger disks, which 
are smaller than those on toes. The species was taken only on 
