CROroniLIANS, LIZARDS, AND SNAKES. 



357 



in immediate coiitnct with superciliary series. Abdominal scales emar- 

 giuate, accumulated on the posterior gular region, where many are tri- 

 cuspid. Hind limb extended, reachirfg orbit. Femoral pores 17-18. 



Length from muzzle to vent, 210 mm. ; from muzzle to axilla, lOG mm. ; 

 hind foot, 75 mm. Male, above bright olivaceous, with a reddish longi- 

 tudinal dorsolateral band on each side, crossed medially by numerous 

 indistinct brown bars; often obsolete; under surface and sides of tail 

 yellowish. Anterior face of fenuir, groin, a large spot anterior to 

 brachium, a broad band connecting the latter with the former, and the 

 latter of each side, across posterior gular region, black, which shades 



Fig. 53. 



SCF.r.OI'ORUS ZOSTEROMtTS COPE. 

 Xf. 



Lower Caliioniia. 



Cat. No. 12M19, U.S.N.M. 



into blue on sides and throat. Chin light green. P>rachiuni black in 

 front. In younger specinuMis the prebrachial spot often does not con- 

 nect with the lateral abdominal band. 



A large species to be compared with the S. clarlii, which is foun<l in 

 Texas and Arizona. The latter has a shorter prefrontal plate, greater 

 size, and different coloration. 



In two specimens received since the above descri]>tion was written 

 (Cat. No. 11071) the entire inferior surfaces, excepting the cliin, gular 

 region, tail, tibia", and feet, are bluish black. 



Mr. Van Denburgh' reports this species from various localities in the 



' Proceedings, f'alitoriiia AciMlinny of Sciences, V, 1895, p. 108. 



