80 CALIFORNIA ACADEMY OF SCIENCES. 



Fresno (Los Gatos Canon), Santa Barbara (Santa Bar- 

 bara), and Ventura (San Buenaventura) Counties, 

 California. 



It ranges north across western Oregon and Washing- 

 ton to the Straits of Juan de Fuca. 



Habits. The Blue-bellied or Western Fence Lizard is 

 by far the most numerous of its tribe in western central 

 California. It is usually to be found about fences, piles 

 of wood or stone, the great brush-heap homes of the 

 wood-rat (Neotoma), or roadside banks honeycombed 

 with abandoned gopher (Thomomys) holes, which afford 

 it ample opportunity to hide upon the approach of 

 danger. Its coloration, especially the intensity of the 

 black of the lower surfaces and the blue of the throat, 

 is subject to much variation in the same individual, and 

 is more or less dependent upon the coloring of sur- 

 rounding objects. 



In winter it is sometimes found in the interior of de- 

 caying logs, but I believe that it more frequently hiber- 

 nates under ground. 



20. Sceloporus biseriatus Hallo well. FENCE LIZARD. 



Sceloporus bi-seriatus, HALLOW., Proc. Acad. Nat. Sci. Phila , 1854, 

 p. 93 (type locality border of El Paso Creek and in Tejon 

 Valley [California]); and U. S. Pac. E. R. Surv., Eept., X, 

 pt. IV, 1859, p. 6, pis. VI, figs. 2a-2f, & VIII. 



Sceloporus longlpes, BAIRD, Proc. Acad. Nat. Sci. Phila., 1858, p. 254 

 (type locality Fort Tejon, Cal.). 



Sceloporus smaragdinus, COPE, Wheeler's Surv. W. 100th Meridian, 

 V, p. 572, pi. XXIV, figs. 2, 2a (type localities Beaver, Utah; 

 Nevada; Dome Canon, Utah). 



Sceloporus bocourtii, BOULENGER, Cat. Lizards Brit. Mus., II, 

 1885, p. 229 [part], type localities Monterey, Cal., Mt. 

 Whitney, Cal., Santa Cruz). 



Description. Head and body little depressed. Nostril 

 opening much nearer to end of snout than to orbit. 



