HEMIDACTTLUS. 89 



the eye and the ear-opening, 1| the diameter of the orbit ; fore- 

 head concave ; cant h us rostraUs swollen ; ear-opening large, oval. 

 Body aad limbs moderate. Digits moderately dilated, free, inner 

 well developed ; infradigital lamella? almost perfectly straight, 

 9 to 11 under the inner digit, 12 or 13 under the median. 

 Head covered anteriorly with convex granular scales, smaller in 

 the frontal concavity, posteriorly with minute granules intermixed 

 with round tubercles ; rostral subtetragonal, not twice as broad 

 as deep, with median cleft above ; nostril pierced between the 

 rostral, the first labial, and three or four nasals ; 10 to 12 

 upper and 9 or 10 lower labials ; mental large, triangular or 

 pentagonal, twice as long as the adjacent labials ; two pairs of 

 chin-shields, the inner the larger, elongate, in contact behind the 

 mental. Upper surfaces with minute, granular scales intermixed 

 with moderate-sized trihedral, more or less strongly keeled tubercles, 

 the largest not measuring more than one third the diameter of the 

 eye ; they are arranged very irregularly on the back, in about 20 

 longitudinal series. Abdominal scales smooth, roundish, imbricate. 

 Male with a long series of femoral pores, 19 to 25 on each side, 

 interrupted on the praeaual region. Tail rounded, tapering, 

 depressed ; above \\ith small irregular keeled scales, and 6 or 8 

 longitudinal series of large trihedral tubercles ; beneath with a 

 median series of transversely enlarged plates. Brown above, with 

 darker spots, generally confluent into transverse undulating bands 

 on the back ; two more or less distinct dark streaks on each side 

 of the head, passing through the eye ; lower surfaces dirty white. 



From snout to vent 4'5 inches ; tail 5. 



Hah. Deccan and Southern India. 



90. Hemidactylus triedrus. 



Gecko triedrus, Daud. Ilcpt. iv, p. 155 ; Lesson, in Belang. Voi/, Ind. 



Or. p. 311, pi. v, fig. 1. 

 Ileniidactyhis triedrus, Kelaarf, Prodv. p. 157; Gihith. liept. B. I. 



p. 107 ; 'llieob. Vat. p. 75 ; Boidencj. Cat. Liz. \, p. 133. 



Head large, oviform ; snout longer than the distance between 

 the eye and the ear-opening, 1| the diameter of the orbit; fore- 

 head concave ; ear-opening large, siiboval, oblique, measuring 

 about half the diameter of the eye. Body and limbs moderate. 

 Digits free, moderately dilated, inner well developed ; infra- 

 digital lamellte slightly oblique, 6 or 7 under the inner digits, 

 8 to 10 under the median digits. Snout covered with convex 

 granules, ^^•hich may be keeled ; hinder part of head with minute 

 granules intermixed with, roundish tubercles, l^ostral subquad- 

 rangular, not twice as broad as deep, with median cleft above; 

 nostril pierced between the rostral, the first labial, and three or 

 four nasals ; b to 10 upper and 7 or 8 lower labials ; mental large, 

 triangular or pentagonal, at least twice as long as the adjacent 

 labials ; four chin-shields, median pair largest and in contact 

 behind the mental. Upper surface of body covered «ith small 



