254 CALIFORNIA ACADEMY OF SCIENCES [Proc. 47H Ser. 
these spots are sometimes continued on the tail as a single 
row of black spots along the mid-dorsal line on each alternate 
whorl of caudal scales. 
This seems to be the rarest species of grass lizard in For- 
mosa. It has been taken only at Kanshirei and Taipeh. 
Achalinus werneri Van Denburgh 
Diagnosis —Similar to Achalinus spinalis, but with more 
numerous urosteges (88 to 96). 
Type.—California. Academy of Sciences, No. 22064. 
Nase, Amami O shima, Loo Choo Islands, Japan. 
Description—In general similar to A. spinalis. The internasal suture 
is about equal to that of the prefrontals. Loreals are absent. There is one 
preocular on each side. Temporals are 2+2+73 on each side. The supra- 
labials are 6-6, the fourth and fifth reaching eye, the sixth largest. The 
sixth supralabial is semi-divided on one side. Infralabials are 6-6, the 
first in contact with its fellow of the opposite side, the first to fourth in 
contact with the anterior genials, the fifth and sixth largest. There are 
two pairs of genials, the posterior smaller. The scales are in twenty-three 
rows, with one keel except in the outer row, the scales of which are smooth 
and about twice the size of those above. The gastrosteges are one hun- 
dred and fifty-seven in number. The anal is entire. There are ninety- 
three undivided urosteges. 
The back is nearly uniform dark brown, without definite dark 
lines. The lower surface of the tail is uniform dark brown like 
the back. 
Wemereh tO AMS pet y yma inet nse tol Minas emma tants 235 mm. 
dene tod tal eeu ie ea ito Ain, URL Reta ta LOZ i 
V ariation.—A second specimen, No. 22091, agrees with the 
type in essential characters. It has scales in twenty-three 
rows, gastrosteges one hundred and seventy-two, anal entire, 
urosteges eighty-nine. The genials are two on one side and 
three on the other. The internasal suture is longer than the 
prefontal. The temporals are 2+2+3 and 2+274. There is a 
dark mid-dorsal line, and an indefinite dark subcaudal streak. 
The ventral surfaces are grayish white. The length to anus is 
296 mm., of tail, 96 mm. 
A tail 110 mm. long, taken from the stomach of a Hemi- 
bungarus japonicus (No. 22063) is now No. 22065 of the 
Academy’s collection. It has ninety-six undivided urosteges. 
Distribution.—This species has been taken only at Nase, 
Amami O shima, Loo Choo Islands, Japan. 
