new Lizards from Madagascar. 445 



central tubercle ; symphysial in contact with a pair of small 

 chin-shields. Body covered above with small, irregular, flat 

 granules intermixed with roundish, obtusely keeled, sub- 

 trihedral tubercles forming about 18 longitudinal series ; these 

 tubercles nearly as large as the largest tubercles on the snout, 

 as long as or a little shorter than the greatest interspaces 

 between them ; ventral scales small, smooth, imbricate, 48 

 across the middle of the belly. Limbs granular above, with 

 large tubercles, which are keeled on the fore limb and crus, 

 conical on the thigh. Tail short, swollen, carrot-shaped, 

 covered with unequal-sized scales and keeled tubercles. Pale 

 greyish above ; with five crescentic cross-bands interrupted 

 on the vertebral line ; these bands light in the middle, dark 

 brown on the borders ; the first band extends from eye to 

 eye, across the nape ; an oblique dark band from the eye to 

 the lip below the nostril ; lower lip with three vertical dark 

 bars ; lower parts white. 



millim. 



Total length 104 



Head 22 



Width of head 17 



Body 48 



Fore limb 28 



Hind limb 32 



Tail 34 



South-western Madagascar. A single female specimen, 

 collected by Mr. Last. 



Diplodactylus gracilis. 



Head once and three fourths as long as broad ; the skin 

 confluent with the cranial ossification ; middle of snout and 

 interorbital region deeply concave ; ear-opening vertically 

 oval. Limbs slender; digits moderate, granular inferiorly, 

 feebly dilated at the end ; the granules replacing the sub- 

 digital lamellse forming two or three longitudinal series. 

 Upper surface of head with polygonal, juxtaposed, flat scales, 

 the largest on the sides of the snout and bearing a slight 

 central tubercle ; temporal region with small granules and 

 round tubercles. Kostral twice as broad as deep, entering 

 the nostril ; 11 or 12 upper labials, first entering the rostral, 

 all except the two anterior with a small central tubercle ; 

 symphysial in contact with a pair of chin-shields, followed 

 by an azygous subcircular shield. Body covered above with 

 rough granules intermixed with numerous small conical 

 tubercles ; the largest of the tubercles smaller than the largest 



