56 geckonid;e. 



I. Dig-its angularly bent, thus composed of a 

 basal and a terminal portion. 

 a' . Pupil vertical. 



a". Tail fragile Gymnodactylus, p. 59. 



h". Tail very thin, not fragile Agamuea, p. 71. 



h' . Pupil round. 



a" . Tail compressed, crested Pristueus, p. 72. 



b". Tail neither compressed nor crested Goxatodes. p. 73. 

 B. Digits -with strong dilatations. 

 a. Digits clawed : pupil vertical. 

 a'. Digits not dilated at the base, ending 

 in a suhtriaiigular or heart-shaped 

 expansion divided beneath by a 

 longitudinal groove into which the 

 claw is retracted. 

 a" . Digital expansions with two plates 

 beneath ; the penultimate joint 

 with an expansion similar to the 



distal Calodactylus, p. 80. 



h" . Each digit with only one expan- 

 sion, which is furnished beneath 



with fine lamellfe Ptyodactylus, p. 81. 



b' , Digits dilated at the base, the distal 



joint compressed. 



a" . The distal joint long, free, rising 



from within the extremity of the 



digital expansion. 



a. Inner digit with compressed, 



clawed phalanx ; dorsal scales 



granular or tubercular Hemidactylus, p. 82. 



/3. Inner digit with compressed, 

 clawed phalanx : dorsal scales 



large, imbricate Teratolepis, p. 9G. 



y. Inner digit clawless Gehyra, p. 90. 



h" . The distal joint at the extremity of 

 the digital expansion. 

 a. Digits free or slightly webbed. 

 a . A double series of subdigital 



lamellfe : inner digit clawless LKPiDODACTVLtTS, p. 97. 

 ft' . A single series of subdigital la- 

 mellae ; inner digit with com- 

 pressed, clawed phalanx .... Hoplodactylus, p. 100. 

 y . A single series of subdigital la- 



mella3 ; inner digit clawless. . Gecko, p. 101. 



/3. Digits entirely webbed Ptychozoox, p. 104. 



h. Digits clawless ; pupil round Phelsuma, p. 105. 



Genus STENODACTYLUS, 



Fitzinger, N. Classif. Rept. p. 13, 1826. 



Digits not dilated, nor bent at any of the articulations, 

 f urnislied M'itb a long cla«-, and a lateral fringe or denticulation of 

 pointed scales ; beneath with a series of keeled scales. Body 

 covered with juxtaposed or subimbricate scales. Pupil vertical. 

 No prseanal or femoral pores. 



