Vou. II] VAN DENBURGH—REPTILES—CHINA, JAPAN, FORMOSA 241 
Diagnosis —Like Lygosaurus pellopleurus but with scales 
less strongly keeled; the lateral nuchals usually smooth; the 
laterals smooth or weakly keeled. 
Type.—California Academy of Sciences No. 21408, 
Amami O shima, Loo Choo Islands, Japan, April 26 to May 
1 TES NOY 
Description—The description of Hallowell’s species given by Stejneger 
applies so completely to this subspecies that no detailed description is 
needed here. 
Teer et ly EO amiss oie paeiceers nessa erate tslavetalaictaial lates = 61 mm. 
Wen obhima iiatail ese slants tt Vs of yelavetevekete afore AG) en 
SHOU POM CAT eT EE DAs Mie ec bate suai ray elLeNeyataD as ig ihO) 
1 Pact soa hap) ON aa Bae ete eR ACea LN RN OTR UES Calc ER ER Ue 10 
TELE AA ATLANTA RE os aeet  e e gL cae cor cree Ey /ateen 
Base of fifth to end of fourth toe...............-. Byhoer 
V ariation—There is considerable variation as regards the 
keeling of the scales in different specimens. As stated above, 
a few approach the condition found in the Okinawa examples. 
One, No. 21445, has all scales smooth except on the posterior 
part of the back and the base of the tail, where they are very 
weakly keeled. A considerable number have the laterals and 
a few (usually two) of the central rows of nuchals weakly 
keeled. A very large number have the laterals and nuchals 
smooth. The number of keels on a scale is usually three, but 
may be five. 
Fifty specimens, taken at random from the series have been 
examined as to the number of scale-rows and the condition of 
the frontal. One has twenty-eight rows, twenty-nine have 
twenty-six rows, and twenty have twenty-four rows. The 
frontal is transversely divided in thirty-five specimens, and 
entire in fifteen. 
Cryptoblepharus boutonii nigropunctatus (Hallowell) 
Two specimens (Nos. 14959 and 14960), secured from Mr. 
Owston, are from Haha shima, Bonin Islands. One has 
twenty-six, and the other only twenty-four scales around the 
middle of the body, the numbers found by Stejneger in ten 
specimens examined by him (six 24, four 26). Both have 
distinct postnasals. 
