Vou. II] VAN DENBURGH—REPTILES—CHINA, JAPAN, FORMOSA 249 
The large chin-shields are as follows :— 
NUMBER OF CHIN-SHIELDS 3-3 3-4 4-4 
Kikaiga specimens .........-.-.-...4-5- 70 11 8 
Amami ©) shima) specimens! .): 1). )...2).- 36 5 3 
Okinawa PORN RIL NM Tawi CGN LANG 2 He Pails 18 0 0 
Miyako SM NPAT Cae sretetene eke 1 0 1 
The supralabials normally are six, but may be either five 
or seven. Both specimens from Miyako have seven. 
The large preanals may be two separate keeled scales, or two 
keeled scales partially united, or a single large plate with two 
keels. The last is the usual condition except on Okinawa, 
where two is the more frequent number. These conditions are 
shown in the following table: 
Two Two One One 
PREANALS Separate United 2 Keels Smooth 
Kikaiga shima ......... 28 3 58 0 
Amami ©) shima...).<- 15 0 26 1 
Okinawa shima 2. :-2.. 11 1 6 0 
Wiel eoislapiine ys Beene 1 0) 1 0 
The rostral is in contact with the internasal in about sixty- 
nine per cent of the specimens from Amami, about ten per cent 
of those from Kikaiga, and about five per cent of those from 
Okinawa. It is not in contact in either specimen from Miyako. 
RosTRAL AND INTERNASAL In contact Separated 
Kicanoay (SOM excAlITE@) perce. salsa yee iar abe 4 34 
NEN ag MOU SHIATA/ a ean ah Cote Na A See 29 13 
Oksana ete ai eetete as Unicaarchayte maaiensi 1 17 
VIniyrcliconwn nyse ian nape dicted, dealatovetal t=) 0 2 
Neither of the specimens from Miyako shows any trace of 
the light lateral lines, even on the head. They are bright green 
above, and greenish white below and on the sides of the head. 
All of the other specimens from all the islands have very defin- 
ite yellow lateral lines on the row of enlarged lateral scales, 
and this line extends the whole length of the body except in 
four specimens from Kikaiga (Nos. 21055, 21084, 21099, 
21101) in which it covers only one-third or one-half the dis- 
tance between the limbs, being absent posteriorly. There is 
considerable variation in the coloration of individual speci- 
mens from the northern islands. The entire area above the 
yellow lateral line may be bright green (turning in alcohol to 
blue and then to brownish or grayish slate) ; or the back may 
