390 



REPORT OF NATIONAL MUSEUM, 1898. 



SCELOPORUS VANDENBURGIANUS Cope. 

 Sceloporus vandenhurgiamis Cope, Americiiu Naturalist, XXX, 1896, p. 834. 



This is a small species with small scales and very dark colors. There 

 is not much difference in the sizes of the dorsal, lateral, and ventral 

 scales. Forty-five rows may be counted between the occiput and a line 

 connecting the groins, and twelve in a head length. Between the groin 

 and axilla thirty-five scales may be counted to an axillary area of smaller 

 and smooth scales. The dorsal and lateral scales are keeled and mucro- 

 nate; those of the inferior surfaces smooth and mostly feebly notched. 

 Caudal scales strongly keeled and mucronate, and larger than dorsals. 

 Two parietals on each side, the anterior the larger, and extending to 

 the narrow marginal supraocular row, so that there is only one frouto- 



Fig. 04. 

 SCELOPOKUS VANDENBURGIANUS COPE. 



X 1.5. 

 Sau Diego Couuty, California. 



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



parietal on each side. A third parietal external to the other two. The 

 frontal is not longitndinally divided. There is one series of six large 

 supraoculars, separated from the frontals and frontoparietals all round 

 by a series of small scales. External to the large supraoculars is a 

 series of four much smaller ])olygonal flat scales much as in S. hiseriatus. 

 Between these and the superciliaries is one row of still smaller scales 

 (with an extra scale or two). Two scales on the canthus rostralis. 

 Head scales all smooth. Six large free auricular scales. A single ver- 

 tical prehumeral fold, inclosing a pocket of granular scales. Temporal 

 scales keeled. 



The extended hind leg reaches to the auricular meatus. Femoral 

 pores 16. Male with postanal plates. 



Color of adult male dark-green above, with faint traces of a paler 

 strii)e on each side of the back and of a few darker spots on each side 

 of the middle line. Inferior surfaces dark blue, with a pale line in the 



