i. Gymnodactylus Spix. 



(Spix, Spec. Nov. Lacert. p. 17, 1825). 



Digits strong, clawed, cylindrical or depressed at the base; 

 the distal phalanges compressed, forming an angle with the 

 other part of the digit; the claw between two enlarged scales, 

 the lower of which is notched under the claw; digits beneath 

 with enlarged transverse plates (fig. 8). Body granular, the 

 granules intermixed with tubercles. Pupil vertical. Males with 

 or without praeanal or femoral pores. 



Distribution. Borders of the Mediterranean; S. Asia; Aus- 

 tralia; islands of the Pacific; tropical America. 



Key to the Indo-Australian species. 



A. No lateral fold; dorsal tubercles forming regular 



longitudinal series ' i. G. pelagicus p. 6. 



B. A fold from axilla to groin ; large species with 

 large head. 



I. Lateral fold with larger and smaller pointed 

 tubercles. Tail with whorls of keeled spiny 



tubercles. Ventral scales small 2. G. lateralis p. 7. 



II. Lateral fold with round tubercles. 



a. No praeanal nor femoral pores. 



1. Ventral scales very small. Body brown 

 above with small darker spots and V- or 



M-shaped cross bands 3. G. jellesmae p. 8. 



2. Ventral scales larger. Body light brown 

 above with 6 paired blackish, quadrangular 

 spots on the back, the interspaces light 

 with small dark brown spots; head with 



a dark brown network 4. G. sermowaiensis p. 9. 



b, Male with femoral or praeanal pores, or both. 



1 . Dorsal tubercles very large ; male with 



18 19 femoral pores along the thigh . . 5. G. d' 'armandvillei p. II. 



2. Dorsal tubercles small. 



f Male with praeanal and femoral pores. 

 a. On each side 4 6 femoral pores; 

 12 or 13 praeanal pores in a longi- 

 tudinal groove. Tail covered below 

 with small scales. Body light brown 

 above with dark brown spots, some- 

 times forming cross bands on the back. 6. G. marmoratus p. 13* 



