210 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. 
Specimens from the southern islands—Ishigaki and Irio- 
mote—nearly always have a distinct whitish band under the 
eye. Those from Miyako and the more northern islands usu- 
ally lack this light band. Thus this band is present in eight 
from Ishigaki and in sixteen from Iriomote; is absent from 
eight from Miyako, thirteen out of fifteen from Okinawa, and 
ninety-two out of one hundred and nineteen from Amami 
Oshima. 
Specimens from Iriomote, Ishigaki, and Miyako usually 
show a distinct light streak along each side of the body, as 
do most of the Formosan and Botel Tobago Japaluras. This 
streak usually is absent in specimens from Okinawa and 
Amami. This is shown in the following table: 
Light STREAK Distinct Slight Absent 
BoteliWoObacovnyencea se aor uneeiee 2 2 
IF OETIOS A Man Manis etoRUt Ae iranian Dua cba Us 77 10 17 
TOMO BE etal ha CONES UU Rh NN Ra 11 5 
Dis llancraatlca iypeshy eles ALTAIR aE La 4 1 3 
AN OW MAE EN CNG LA GULING nN MIN aL UeNUpiiT a ek 6 2 
(Gieraia yeh IN Cee Mba Ry EAD RIS Meme RAUL 2 13 
PA TATE NG WCE eR UI OCP AR ese ga 47 72 
These data may be arranged in the form of a key, as 
follows: 
a.—Infralabials keeled; throat usually dark with whitish markings. 
b.—Width at superciliaries usually greater than length of third 
toe without claw. Formosa. 
Japalura polygonata. 
b.—Width at superciliaries not greater than length of third toe 
without claw. Botel Tobago. 
Japalura polygonata mitsukuri. 
a’ —Infralabials smooth; throat ‘light, unicolor or with narrow dark 
lines. 
bb.—A very distinct whitish band under eye; usually a lateral light 
band. Ishigaki and Iriomote. 
Japalura polygonata ishigakiensis. 
bb?—No distinct whitish band under eye. 
c.—Usually a distinct lateral light streak. Miyako. 
Japalura polygonata miyakensis. 
c?.—Lateral light streak absent or but slightly developed. Okinawa 
and Amami, 
Japalura polygonata polygonata. 
The three forms from the Loo Choo Islands seem worthy 
of rank as subspecies. Since Japalura polygonata was origin- 
ally established from specimens from one of the northern 
islands, we may regard the lizards of Okinawa and Amami as 
the typical form, and may name the other two as follows: 
