8 GECKONID^. 



Infradigital plates in a simple series ; inner digit rudimentary, of 

 fore limb clawless, of hind limb clawed. 



28. PerocliirTis, p. 154. 



B. The free distal joint at the extremity of the digital expan- 



sion ; a double series of infradigital lamellae. 



Pupil vertical ; digits narrow at the base, the dilatation strong and 

 discoid, the distal joint long and slender; inner digit rudimental. 



29. Spathoscalabotes, p. 156. 



Pupil round ; eyelid distinct all round the eye ; digits narrow at the 

 base, the dilatation strong and discoid, the distal joint free ; inner 

 digit rudimental, with strong, very distinct claw. 



30. Microscalabotes, p. 157. 



Pupil round ; eyelid distinct all round the eye ; digits narrow at 

 the base, the dilatation strong and discoid, the distal joint strongly 

 curved, the claw retractile between the anterior lamellae ; inner 

 digit rudimental, with very small, frequently indistinct claw. 



31. Lygodactylus, p. 158. 



Pupil vertical ; distal joint of digits short ; thumb clawless. 



32. Lepidodactylus, p. 162. 



C. The free distal joint at the extremity of the digital expan- 



sion ; a single series of infradigital lamellae. 



1. The distal joint long. 



Digits narrowing gradually towards the end, the narrower portion 

 not forming an angle with the dilated basal part ; eyelid distinct 

 all round the eye 33. Naultinus, p. 168. 



The slender distal portion of the digit forming an angle with tlie 

 dilated basal portion 34. Hoplodactylns, p. 171. 



2. The distal joint very short. 



Digits more or less webbed, inner clawed. 



35. Ehacodactylus, p. 176. 



Digits half-webbed, inner clawless. . 36. Luperosaurus, p. 181. 



Digits free or slightly webbed, inner clawless. 



37. Gecko, p. 182. 



Digits entirely webbed, inner clawless. 38. Ptychozoon, p. 189. 



VIII. Digits entirely dilated, clawed, without compressed un- 

 gual phalanx, inferiorly with a single series of lamellae. 



Body covered with small imbricate scales. 



39. Homopholis, p. 191. 



Body covered with large imbricate scales. 



40. Geckolepis, p. 192. 



