288 REPTILIA. 



separate, unequal, armed with claws: scales dis- 

 posed, under the belly and round the tail, in 

 transverse parallel bands. 



3. LACERTA Palate armed with two rows of teeth : 



upper part of the head protected by large squamous plates, 

 terminating posteriorly in a line with the orifices of 

 the ears: a collar on the under side of the neck formed 

 by a transverse row of flat broad scales, separated from 

 those of the breast by a space covered with small granu- 

 lated scales* : scales on the abdomen much broader than 

 those on the back, and not keeled : one row of femoral 

 pores on each thigh. 



ORDER III. OPHIDIA. 



Skin covered with scales : body cylindrical, very much 

 elongated : jaws furnished with teeth : no feet. 



I. ANGUID^E A third eyelid: body entirely 



covered with imbricated scales: jaws not dilat- 

 able : rudimentary scapular and clavicular bones 

 beneath the skin. 



4. ANGUIS. No appearance of extremities visible 

 externally : tympanum concealed beneath the skin : 

 maxillary teeth compressed and hooked ; no teeth on 

 the palate. 



* This last character, though applicable to the few species met with in this country, must bo 

 received with some limitation in the case of two or three others found on the Continent, in which 

 the collar, though still free at the sides, is interrupted in the middle. 



