236 CALIFORNIA ACADEMY OF SCIENCES  [Proc. 47H Ser. 
Miyako shima in the middle and southern Loo Choo groups. 
Dr. Stejneger has carefully compared the specimen from 
Miyako with the American lizards and agrees with Dr. Bou- 
lenger as to their identity. However, both were compelled 
to work with very limited material and it is possible that the 
examination of good series of specimens would change their 
conclusion. It is much to be regretted that we have not now 
at hand enough Chinese specimens to give trustworthy results 
upon comparison with the other series in the Academy’s col- 
lection. 
We have received no specimens of this lizard from either 
Okinawa or Miyakoshima, and have none from China, but 
have one from Tsushima and good series from Ishigaki, For- 
mosa, and the United States. 
While lack of Chinese specimens prevents any direct com- 
parison with the form found on the Asiatic mainland, the 
records in the literature make it evident that this Asiatic form 
usually has a greater number of scales around the middle of 
the body than is found in American specimens. The specimen 
from Tsushima agrees in every respect with the descriptions of 
the Chinese lizards. The American lizards also differ from all 
Asiatic specimens in coloration. Since the scale counts over- 
lap, the two forms cannot be regarded as distinct species, but 
are certainly entitled to stand as separate subspecies. 
When we consider the specimens from Formosa and Ishi- 
gaki we find that they differ from those from America and the 
Asiatic mainland in having fewer scales in a longitudinal dorsal 
row. The Ishigaki lizards differ from the American and For- 
mosan forms 1n the greater number of scales around the middle 
of the body, and differ from these last and from the Chinese in 
having the frontal nearly always separated from the fronto- 
nasal. These differences also are not constant, but occur in so 
large a percentage of individuals as to make their recognition 
as subspecies desirable. 
These principal differences are set forth in the following 
° Key. 
a.—Scales on back more numerous, average more than 65 in a row 
between parietals and backs of thighs, average more than forty 
on back between insertions of limbs; 
