GECKONID^. 



33 



dentition) ; no teeth on the paLate. Vertebrie amphicoelous (bi- 

 concave). Clavicle dilated and perforated proximally ; iuterclaA'icle 

 rhomboidal or cruciform. 



Tongue short, very feebly nicked in front, smooth or villose. 

 Eye usually large, frequently with vertical pupil, usually without 

 connivent eyelids. Scales usually granular or tubercular above ; 

 no symmetrical shields on the top of the head. Limbs well 

 developed ; digits often dilated, adapted for climbing up smooth 



■i 







Fig. 9. — Pectoral arch of Gcc/co verticillatus, Fi^. 10.— Tongue of same. 



cl. Clavicle. 

 cor. Coracoid. 



i.cl. Interclavicle. 

 st. Sternuiu. 



\co7\ Epicoracoid. 

 sc. Scapula. 



surfaces. Eemoral or praeanal pores frequently present in the 

 males. Tail usually very fragile. 



More or less nocturnal lizards occurring over all the hotter 

 parts of the world. So far as is known, the Malay Geckos lay 

 round, hard-shelled eggs. 



We have here to deal with representatives of nine genera. 



Synopsis of the Genera, 



I. Digits not dilated, all clawed. 

 Pupil vertical ; claw between two scales. . 

 Pupil round ; claw between two scales . . 

 Pupil vertical j claw between three scales. 



II. Digits strongly dilated. 



A. Digits with a compressed distal 

 joint, rising from within the ex- 

 tremity of the expansion ; sub- 

 digital lamellae paired. 

 Inner digit clawed ; lateral expansion of 

 body, if present, scaled like the body . . 

 Inner digit clawed ; a mucli developed 

 lateral expansion covered with large 

 tetragonal scales arranged like bricks 



Gymnodactylus, p. 35. 



GONATODES, p. 38. 



tEluroscalabotes, p. 39. 



Hemidactylus, p. 40. 



MiMETOZOOX, p. 45. 



Inner digit clawless Gehyra, p. 4(1 



