CROCODILIANS, LIZARDS, AND SNAKES. 



591 



Measurements.— Tot-cil length, 190 mm.; length to angle of lower jaw, 

 15 mm.; to collar, 20 mm.; to axilla, 24 mm; to veut, 50 mm.; of fore 

 limb, 18 mm.; of fore foot, U mm.; of hind leg, 39 mm. of hind foot, 

 20 mm. 



Color uniform dark olivaceous above; pale olivaceous below. No 

 spots nor stripes. 



This species is distinguished by a combination of characters. The 

 rough scales are peculiar to it, and it is the only species known to me 

 in which the rows of brachial plates exceed the femoral in number. It 

 is the smallest species, and yet shows no indication of stripes. 



Fig. 114. 



CNEMIDOPHOEUS INOHNATUS BaIRD. 



X2. 



Nuevo Leon, Mexico. 



Cat. No. 3032, U.S.N. M. 



Cnemidophorus inornatns Baird. 



CNEMIDOPHORUS SEPTEMVITTATUS Cope. 



Cnemidophorus septemvUtatus CoPK, Trans. Amei'. Phil. Soc, 1893, p. 40, pi. ix, 

 fig. 8. 



Scales of collar large, in three or four transverse rows, the largest 

 row on the edge; scales of mesoptychium small, flat, those of gular 

 region larger. Head narrower than in any other species, the first and 

 second supraorbital plates longer than wide, the fourth well developed. 

 Interparietal plate twice as long as wide, considerably narrower than 

 the parietals; both bounded posteriorly by some small plates. Loreal 

 much longer than postnasal; no freuoorbital. Infralabials, six on each 



