62 MANUAL OF NATUKAL HISTOKY. 



series ; tail with a central series of larger 

 shields ; limbs 2, posterior, rudimentary. 



15. FAMILY. Aprasias (Aprasiidse). Body and tail 



cylindrical, tapering ; ears hidden ; nostrils 

 small ; head small, half-conic, shielded ; muzzle 

 rather produced ; eyelids edged with small 

 scales ; pupil round ; scales of back and belly 

 hexagonal ; limbs none ; prseanal pores none. 



16. FAMILY. Scaly-cheeked Lizards (LialisidaB). 



Body elongated, sub-cylindrical ; head elon- 

 gated, depressed ; head- shields subimbricate, 

 scale-like ; cheeks scaly, muzzle flattened ; 

 eyelid scaly, pupil elliptical, erect; ears dis- 

 tinct; scales oval, smooth, imbricate; belly 

 with 2, tail with 1 series of large shields; 

 limbs 2, posterior, short; series of prseanal 

 pores in front edge of a scale. 



B. Eyes distinct; eyelids distinct , valvular; head 

 conical. 



17. FAMILY. Skinks (Scincidse). Body fusiform, 



or sub -cylindrical; head sub-quadrangular, 

 shielded ; nostrils lateral ; rostral plate mode- 

 rate, triangular ; limbs 4, more or less strong, 

 sometimes hidden; femoral pores none. 



18. FAMILY. Snake-Lizards (Ophiomoridse). Body 



cylindrical, elongate; head shielded, muzzle 

 rather produced ; nostrils lateral ; teeth 

 straight, conical, blunt ; palate not toothless ; 

 tongue flat, scaly, feebly nicked ; ears hidden ; 

 rostral moderate, triangular; limbs none ex- 

 ternal ; scales smooth, 6-sided. 



