TEIID LIZAEDS OF THE GENUS CNEMIDOPHOHUS 59 



pair, may disappear with development, or the 3 dorsal stripes may 

 united into a sinirle broad, middorsal streak, and at times all of the 

 stripes are ver}- faint, almost obsolete. 



Although they may usually be diagnosed at once, examples of dep- 

 pil are sometimes so close to guttatus that s-eparation is almost im- 

 possible. There are apparently no ditl'erences in scutellation. How- 

 ever, most individuals of (/utfatiis exceed the maximum length of 

 deppll indicated above, and although there are usually two distinct, 

 lateral lines at the base of the tail in deppil, there is usually only 

 one in guttatus. Also, the femora of dcppii are usually covered by 

 distinct, rounded, light spots, while those of guttatus are usually 

 unicolor or obscurely marked. 



Anal spurs, although often found in the adults of letuniscatus, are 

 universally absent in deppii. 



Descr-iption.- — Snout moderately elongate; nostril anterior to nasal 

 suture; anterior nasal usually not in contact with second upper 

 labial; supraoculars normally 3; superaocular granules usually small, 

 forward extent variable; frontoparietals normally 2; parietals 3; 

 anterior gulars moderate to large, graded, largest centrally ; posterior 

 gulars smaller, contrasted with anterior gulars; mesoi^hychial scales 

 moderate to large, largest centrally, or medio-laterally. graded and 

 smaller laterally, in 2-5 roAvs; postmesoptychial granules minute, 

 sometimes extending to edge of posterior mesoptychial fold. 



Bod}' elongate; ventral plates in 8 longitudinal and 30-38 trans- 

 verse rows; dorsal granules minute to moderate; limbs well devel- 

 oped; brachials 3-8; antebrachials 2-4; brachials and antebrachials 

 more or less continuous at a point of contact; postantebrachials 

 small or slightly enlarged; femorals 4r-9; tibials 2-4; femoral pores 

 12-23; tail elongate, tapering; subcaudals smooth; lateral and dorsal 

 caudals w'eakly keeled, slightly oblique and moderate in size, keels 

 usually irregularly arianged. 



Coloration variable; lower surfaces white to blue-black, often 

 slaty or slaty-blue, especially in the 3'oung; lower surfaces of tail 

 usually Avhite or yellowish, upper surface brown, blue, gray or 

 olivaceous, usually not spotted or reticulated; tail usually Avith tAvo 

 narroAv, diminishing, lateral stripes on each side of its base; femora 

 usually strongh' spotted or reticulated Avitli white, especially in the 

 young, but sometimes nearly unicolor; back usually lined, rarely 

 spotted; sides si)otted, lined and spotted, or only lined; if fully 

 lined, 6 to 13 strijies present; Avidth of stripes variable, stripes usually 

 straight, seldom Avavy, dorsal ])air often converging on the median 

 line posteriorly and anteriorly to ])roduce an elongate, double- 

 pointed oval, and sometimes united Avith the middorsal strii)e to 

 produce a broad, light streak; dorsal ground color usually blackish 

 or gray, but sometimes broAvnish. 



