CATALOGUE 



or 



LIZARDS. 



Order LACERTILIA. 



" Quadrate bone articulated to the skull ; parts of the ali- and 

 orbito-sphenoid regions fibro-cartilaginous ; rami of the mandible 

 united by suture ; temporal region without or with only one hori- 

 zontal bar. Anal cleft transverse, Copulatory organs present, 

 paired." — Guniher, Phil. Trans, clviii. 1867, p. 625. 



Suborder I. LACERTILIA VERA. 



Nasal bones entering the border of the nasal apertures ; pterygoid 

 in contact with quadrate. Clavicle present whenever the limbs are 

 developed. Tongue flattened. 



A. Tongue smooth, or with villose papillae ; clavicle dilated, loop- 



shaped proximally; no postorbital or postfronto-squamosal 

 arches. 



Fam. 1. GeckonidaB. Vertebrae amphiccelian ; parietal bones di- 

 stinct. 



Fam. 2. Eublepharidse. Vertebrae procoelian ; parietal single. 



B. Tongue smooth or with viUose papillae ; clavicle not dilated 



proximally. 



Fam. 3: XTroplatidae. Vertebrae amphiccelian ; interclavicle minute; 

 no postorbital or postfronto-squamosal arches. 



Fam. 4, Pygopodidae. No postorbital or postfronto-squamosal 

 arches ; pre- and postfrontal bones in contact, separating 

 the frontal from the orbit. 



