16,3 Taylor: Philippine Amphibia 349 
Measurements of Megalophrys stejnegeri sp. nov. 
mm. 
Length, snout to vent 
64 
Length of head, from jaw 
21 
Width of head 
30 
Eye to tip of snout 
8 
Diameter of eye 
9 
Diameter of tympanum 
4.5 
Interorbital distance 
9.2 
Foreleg 
39 
Longest finger 
15.5 
Hind leg 
86.5 
Femur 
27 
Tibia 
23.5 
Foot 
37 
Longest finger 
22 
Variation. — This species, like Megalophrys montana, is varia- 
ble in many characters. In Mindanao specimens the fingers 
vary in length. Sometimes the first, second, and fourth fingers 
are equal, and sometimes they vary progressively in length, but 
in none of the specimens is the difference great ; the nostrils are 
much nearer tip of snout than eye ; the tympanum is not clearly 
outlined, and is frequently somewhat triangular in shape, with 
or without a narrow, fairly distinct ridge bounding it in front; 
the vomerine teeth are constantly absent in the series at hand; 
a semicircular skin fold is frequently present in the middle of 
the back, arched forward; in some specimens the tongue has a 
small nick behind; the males have vocal sacs. The markings 
vary, chiefly in intensity; the black mark behind and somewhat 
below eye is invariably present. In younger specimens there are 
two rather distinctly defined cranial ridges running back from a 
point where the anterior part of eye meets canthus. These are 
not visible in the type, which is probably a full-grown female. 
The yellow tubercles on the posterior side of femur are distinct 
in some specimens and dim in others. 
Remarks. — Megalophrys stejnegeri is clearly differentiated 
from M. montana (Kuhl) , to which it is closely related, by the 
presence of vocal sacs in the male. The slits are large and dis- 
tinctly visible on either side of the posterior part of tongue near 
angle of jaws. The male has a loud “croak” which, during 
the breeding season, can be heard for a considerable distance. 
Nearly all the specimens were discovered by hearing the “croak.” 
During a rain they usually come out of their hiding places. 
All the specimens captured were taken in low mountains 
