Key to the I nd o- Aust rali 



A. Digits not or slightly dilated at the base, all 



clawed. 

 a. Claw between two scales, a smaller superior 

 and a larger latero-inferior. 



1. Pupil vertical I. 



2. Pupil round, eyelid distinct round the eye 2. 

 d. Claw between three scales, a smaller superior 



and two large latero-inferior; upper and 

 lower eyelids well developed, movable ... 3. 



B. Digits strongly dilated. 



a. The free distal joint long, rising from within 

 the extremity of the digital expansion (fig. 3). 



1. Inner digit clawed; lateral expansion of 

 body, if present, scaled like the body ; a 

 double series of infradigital lamellae ... 4. 



2. Inner digit clawed ; limbs, sides of head, 

 body and tail with a dermal expansion, 

 covered with large tetragonal scales; a 

 double series of infradigital lamellae ... 5. 



3. Inner digit clawless; infradigital lamellae 



in a double or single series 6. 



b. The free distal joint at the extremity of the 

 digital expansion ; a double series of infra- 

 digital lamellae. 



1. The distal joint long and slender; inner 

 digit rudimentary 7. 



2. The distal joint short; inner digit clawless. 8. 



c. The free distal joint at the extremity of the 

 digital expansion (fig. 4); a single series of 

 infradigital lamellae. 



1. Digits free or webbed 9. 



2. Digits entirely webbed; limbs, sides of 

 head, body and tail with a membranous 

 expansion 10. 



an genera. 



Gymnodactyhis^ p. 5. 

 Gonatodes^ p. 22. 



Aehiroscalabotes^ p. 26. 



Hemidactyhis^ p. 28. 



Mimetozoon^ p. 36. 

 Gchyra^ p. 37. 



Hemiphyllodactylus^ p. 46. 

 Lepidodactylus^ p. 47. 



Gecko^ p. 51. 



Ptychozoon^ p. 58. 



Fig. 3. Hemidactylus frenattis D. B. 

 Distal part of digit X 8. 



Fig. 4. Gecko verticillatus Laur. 

 Distal part of digit X 4- 



