226 3. IGUANIDM 



and projecting. Central subocular very long, narrow and 

 striDngly keeled. Rostral and supralabials long and low; 

 usirc:lly six or seven supralabials. Symphyseal moderately 

 small, followed by two or three pairs of larger plates sep- 

 araTd (except first) from the infralabials by one or two 

 series of moderately enlarged sublabials. Gular region 

 covered with small, smooth, hexagonal or rounded scales 

 whicii change gradually to granules on sides of neck and to 

 larger imbricate scales on strong gular fold, largest on den- 

 ticulate edge of gular fold where somewhat larger than 

 ventrals. Several enlarged plates in front of ear-opening. 

 Ear denticulation short, of two to four scales, the largest 

 not exceeding in length diameter of largest plate in front 

 of ear. Back covered with tubercular scales of nearly uni- 

 form size becoming granular toward neck and sides of body, 

 scales of central rows very weak keeled, not imbricate, not 

 niucronate, often separated by minute granules. ;Scales 

 largest on tail, weakly keeled, shortly mucronate above and 

 on sides, not imbricate. Posterior surfaces of thighs and 

 arms covered with small granular scales similar to those on 

 sides of body; other surfaces of limbs provided with imbri- 

 cate scales, nearly smooth on arm, forearm, and thigh, 

 keeled on upper surface of leg. Femoral pores 12 to 18 

 usually 14 to 16. Twenty-six to 30 largest dorsals equal 

 shielded part of head. Fifth finger not reaching end of 

 second; fifth toe not reaching end of second; adpressed 

 fore limb not reaching insertion of thigh. 



The head is uniform olive brown above. The central 

 portion of the neck, back and base of tail are uniform brown 

 with thickly scattered dots of pale blue on single scales. The 

 sides are yellowish brown with scattered scales of pale yel- 

 low. The upper surfaces of the limbs and tail are light 

 brown or bluish gray, sometimes dotted with pale blue. The 

 chin and gular region are deep indigo with yellowish mark- 



