202 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. 
series between, and starting close to, the choanae; tibio-tarsal 
articulation reaching eye; color above uniform green in life, 
with dark markings on the legs and sides of body, usually tak- 
ing the form of reticulations or cloudings ; tibio-tarsal joints not 
meeting when the folded legs are held at right angles to body 
axis; nostril usually midway between tip of snout and eye. 
Japan proper. 
Polypedates schlegelii viridis (Hallowell) 
Diagnosis.—Like P. schlegelu but with tibio-tarsal joints 
usually meeting when the folded legs are held at right angles 
to the body axis; nostril usually nearer to tip of snout than to 
eye; dark markings on thighs and sides of body either reticula- 
tions, cloudings, or very numerous small spots. 
Amami O shima and Okinawa. 
The tree-frogs of Amami O shima and of Okinawa seem 
not separable, although those from Okinawa show a greater 
average difference from true P. schlegelii than do those of 
Amami O shima. This subspecies has been partly discussed 
in considering the Japanese form. 
No. 23845, an adult, has no vomerine teeth. WV 
The specimens were collected at Naze, Amami O shima 
and at Nago and Naha, Okinawa, in April and May, 1910. 
Polypedates schlegelii owstoni (Stejneger) 
Diagnosis.—Similar to P. schlegelu viridis but with spots 
on thighs and sides of body discrete, larger, and less numerous. 
Ishigaki shima. 
This form has been commented upon above under head 
of P. schlegelu. It is probable that the width of the head is 
greater than the distance from tip of a sacral diapophysis more 
constantly in this subspecies than in P. schlegeliu viridis of 
the more northern islands; but since this relation is found in a 
majority of the northern specimens, it is of but little value in 
classification. The dark spots are absent in young specimens, 
and are subject to considerable variation in adult ones. Never- 
theless the difference in the spotting of these two subspecies 
usually is quite characteristic. 
In life, the lower surfaces may be either white, cream, or 
yellow. The groin may be gray, straw or tinged with salmon. 
