204 CALIFORNIA ACADEMY OF SCIENCES  [Proc. 4TH SER. 
The specimens at hand agree very well with the original 
description, and upon direct comparison there appears to be 
no difference between the Loo Choo and the Formosan ex- 
amples. There is considerable individual variation in the 
large series from Kanshirei. 
The skin of many specimens is perfectly smooth almost 
everywhere on the upper surfaces of the head, body, and 
limbs. In others it is dotted everywhere with little white 
warts or asperities. Some have these asperities only on the 
limbs and head, others only on the supraocular regions and 
sides of head. Every degree of intergradation is found be- 
tween the smoothest and roughest specimens. The white 
dots on the feet and arms usually are raised on little warts, 
but may be level with the rest of the skin. 
. The vomerine teeth normally are in two rounded patches 
near the choanae; but in several specimens they are in trans- 
verse series very much as in P. buergeri, but never longer than 
the interval. A few specimens seem to have no vomerine | 
teeth. In other specimens the teeth are intermediate between 
these three conditions. One has a single large clump near the 
median line and no lateral patches. 
In alcoholic specimens, the color above may be uniform 
light bluish gray, yellowish or brownish gray, dark brown, or 
slate, with only a few small dark spots on the sides of the 
body; or there may be definite dark markings on the back, 
head, and limbs. There may be an X-shaped blotch between 
the shoulders, or only spots there and posteriorly, or nearly 
the whole back may be covered by one large dark blotch. 
Often there is a dark band across the head, passing over the 
upper eyelids. The limbs may be cross-barred. There is often, 
especially in large females, a bright purplish pink suffusion 
about the dark blotches in the upper surfaces, recalling the 
coloration of Microhyla fissipes. The lower surfaces may be 
white or yellow, immaculate or clouded, or sparsely or densely 
spotted, marbled, or reticulated with dark brown. The rows 
of white dots along the foot and arm are almost always evi- 
dent and are very characteristic. 
One of the Ishigaki specimens, No. 23740, was colored in 
life as follows :—Iris bronze. Above light gray, a light green- 
