7. UMA 133 



Description. — Head rather short and low, with snout 

 rounded when seen from above but pointed in profile. 

 Nostrils large, opening on upper surface of snout. Supra- 

 ocular regions covered with small plates and separated from 

 each other by two or three rows of similar plates. Upper 

 head plates small and irregular, largest on frontal and pre- 

 frontal regions, everywhere smooth and rather flat. Inter- 

 parietal plate small, usually less than half as large as ear- 

 opening. Several {3-6) subocular plates, middle one very 

 long and strongly keeled. Superciliaries rather small, but 

 strongly imbricate. Eyelids bearing a well developed 

 fringe. Ear-opening large, with four to six scales forming 

 a strong anterior denticulation. Supralabials strongly im- 

 bricate, keeled, usually about seven to 1 in number. Infra- 

 labials about 11 to 17, small, juxtaposed; below them an- 

 teriorly one or two and posteriorly several series of flat sub- 

 labial plates. Gulars granular and smooth, larger centrally 

 and on edge of fold. Back and sides covered with small 

 rounded or diamond-shaped granules, v/hich change gradu- 

 ally into much larger smooth, flat, ventrals, the laterals 

 being somewhat smaller. A dermal fold usually extending 

 along each side between limbs. Tail of moderate length, 

 rather broad and depressed basally, its scales posteriorly 

 becoming slightly imbricate, and along its edge, pointed. 

 Limbs very long and slender. Anterior and upper 

 surfaces of arm with somewhat imbricate, smooth, feebly 

 pointed scales. Hind limbs granular above; anterior sur- 

 face of thigh and ventral surface of leg with enlarged smooth 

 scales. Digits and external margin of foot from fifth to 

 fourth toe with fringes of narrow, elongate, projecting 

 scales, largest on fourth toe and margin of foot, and middle 

 three fingers, very small or lacking on first and fifth toes. 

 Males with enlarged postanal plates. Femoral pores in a 

 long main series and usually a shorter second row on each 



