356 



REPORT OF NATIONAL MUSEUM, 1898. 



give ;i cross-buuded result; the tail is blackish, and the inferior sur- 

 faces are light bluish. In adults the colors are more brilliant. The 

 median dorsal scales have a blue spot at the base and a reddish spot 

 at each margin. On the laterals three or four spots are present, but 

 they may be blue, green, or reddish, giving on some scales an ocel- 

 lated effect, the whole being quite kaleidoscopic. The head, limbs, 

 and tail are dark blue, as are all the inferior surfaces excepting an 

 obscure paler space connecting the axilhe. 



This species is nearly related to the aS'. clarkii Baird and Girard, but 

 differs in the presence of two i)arietal plates on each side, in the absence 

 of keelson the scales, and in the coloration. The posterior parietal plates 

 articulate with the interparietal, and are not entirely posterior, as rep- 

 resented in Dr. Stejneger's otherwise excellent figures. The character 

 of the coloration is very handsome in adults and is unique in the genus. 



In its geographical range the 8. orcuttii is restricted to southwest 

 California in the mountainous region near the coast. It is named for 

 Mr. C. E. Orcutt. a well-known naturalist of San Diego. 



Sceloporus orcuttii Stejneger. 



SCELOPORUS ZOSTEROMUS Cope. 



"celoporus zosteromua Cope, Proc. Acad. Nat. Sci. Pbila., 1863, p. 105; Proc. Aiuer. 



Phil. Soc, XXII, 1885, p. 39.5.— Boulengeu, Cat. Liz. Brit. Mus., II, 1885, p. 



225.— Van Denuurgh, Proc. CaL Acad. Sci., V, 1895, p. 108— Stejneger, 



North Amer. Fauna, No. 7, 1893, p. 178, pi. i, fig. 3. 

 Sceloporus clarkii zosteromus Cope, Chock List Batr. Rept. N. Amer., 1875, p. 49. 

 Sceloporus rufidorsum Yarrow, Proc. U. S. Nat. Mus., V, 1882, p. 442. 



Scales large, strongly keeled, slightly denticulate, in ten longitudinal 

 rows on rump and nape, and eighteen to twenty transverse between 

 those points; six in a head length*. Lateral scales larger than abdom- 

 inal, not granular above and before shoulder. Auricular scales much 

 longer than those adjacent. Cephalic shields smooth ; prefrontal longer 

 than broad, single: supraoculars in one series, transverse, posteriorly 



