CROCODIl.IANS, LIZARDS, AND SNAKES. 



581 



CNEMIDOPHORUS TESSELLATUS MELANOSTETHUS Cope. 



Cnemiduphonis teHnellatiis inelanostetlms (.'ope, Check List Batr. Kept. N. Amer., 



187."), p. 46. 

 Cnemidopliorus melanostethus Cope, Proc Acad. Nat. Sci. Phila., 1863, p. 104. 



Fig. 109. 

 CNEMIDOPHORUS TESSELLATUS MELANOSTETHUS COPE. 

 = 1. 



Arizona. 



Cat. No. 3067, U.S.N.M. 



Introparietal plate longer but narrower than the parietals. Posterior 

 supraorbital, not nidimental. First pair of infralabials divaricate 

 behind. Mesoi)ty(;hial scales honiojicneons, smaller, but not granular 

 at the border. Anal plates four, two marginal, the others anteropos- 

 terior. Dorsal scales coarse, in transverse rows, the posterior edges 



