10. UTA 185 



one hundred between interparietal plate 

 and backs of thighs. 



ff . Dprsal scales weakly keeled, largest along 

 central zone, changing gradually to smooth 

 granules before dorsolateral region is 

 reached. 



U. s. stansburiana. p. 227. 



ff*. Dorsal scales strongly keeled, changing 

 rather abruptly to smooth granules on dor- 

 solateral region. 



U. s. hesperis. p. 233. 



eeee*. Dorsal scales larger, average fewer than 

 100 between interparietal plate and backs 

 of thighs, usually strongly keeled, chang- 

 ing rather abruptly to smooth granules 

 on dorsolateral region, 

 fff. Size smaller j basal caudals more regular. 



U. s. elegans. p. 240. 



fff. Size larger j basal caudals more irregular j 

 San Martin Island. 



U. martinensis. p. 247. 



dddd*. No distinct dark blue blotch behind, axilla, 

 eeeee. Dorsal scales large, fewer than ninety 

 from interparietal plate to backs of thighs, 

 strongly keeled, mucronate; light stripes 

 on side of neck more distinct. Santa 

 Catalina Island. 



U. squamata. p. 249. 



eeeee*. Dorsal scales smaller, more than ninety 

 between interparietal plate and backs of 

 thighs, less strongly keeled, not mucron- 

 ate except near tail 5 light stripes on side 

 of neck less distinct. Carmen, Coronado 

 and Danzante islands. 



U. mannophorus. p. 252, 



