54 



GECKONID^. 



Family I. GECKONID^. 



Skull without postorbital or postfronto-squamosal arch ; no 

 squamosal ; prsemaxjUary single ; nasals distinct ; parietals dis- 

 tinct ; frontals completely surrounding the olfactory lobes of the 

 brain; a fibro-cartilaginous iuterorbital septum; a columella cranii ; 



J-If / 



«/■• ano' 



pm 



B C 



Fig. 18. — Skull of Gecl'o verticillafii.H 



mandible containing only fi\e bones, the angular and articular 

 having coalesced. Teeth small, numerous, witli cylindrical shaft 

 anchylosed to the inner edge of the jaws (Pleurodoiit dentition) ; 



