82 



GECKONID^. 



Genus HEMIDACTYLUS, 



Gmy, Auu. Phil. (2) x. 1825, p. 199. 



Digits free or more or less webbed, dilated, beneath with two 

 ro\AS of lamellae ; all the digits provided with slender distal clawed 

 joints angularly bent and rising from within the extremity of the 



a 



Fig. 26. — Foot of Hcmidacti/lus coctai. 

 a. Upper surface, b. Lower surface. 



dilated portiou. Dorsal lepidosis uniform or heterogeneous. Pupil 

 vertical. Males with prseanal or femoral pores. 



Distrihution. Southern Europe ; Southern Asia ; Africa; Tropical 

 America; Polynesia. 30 species are known. 



H. nficiilatns, p. 84. 



Syno2'>sis of Indian^ Cei/lonese, and Burmese Species. 



A. Slender compressed joint of inner digit very 



short, not half as long as dilated basal 

 portiou ; 4 to 6 lamellas under inner, and 

 7 to 10 under median toe *. 

 u. Dorsal granules intermixed with nume- 

 rous small, roundish, keeled tubercles . . 



b. Dorsal granules intermixed with longi- 



tudinally oval or elliptical, strongly 



keeled tubercles H. (/fftcilis, p. 84. 



c. Dorsal granules uniform, or with scattered 



small, round, convex tubercles H.frenatus, p. 85. 



B. Slender compressed joint of inner digit at 

 least half as long as dilated portion. 



^ " dorsal tubercles strongly 



keeled. 



a. Enlarged 



* The infradigital lamellae are counted longitudinally, those which are 

 divided on the median line being reckoned as one. See fig. 26, above, which 

 represents a foot with 8 lumellaj under the inner, and 11 under the median toe. 



