SNAKE-LIKE LIZARDS. 



147 



Blind-Worm. 



the Miocene deposits of Germany, some of which belong to an extinct genus 

 {Propseudopus). 



The want of a lateral fold along the body distinguishes the 

 blind-worm, or slow-worm (Anguis fragilis), in common with the 

 remaining members of the family, from the scheltopusiks ; the blind- worm being 

 further distinguished from the other genera devoid of this fold by the absence of 

 all external trace of limbs, and the fang-like form of its cheek-teeth. The 

 appearance of the blind- worm, which, by the way, is the sole representative of its 

 genus* is so well known as not to call for much description. It may be observed, 

 however, that the scales are rounded in form, and arranged on the back in a 

 quincuncial pattern, while on the sides they are disposed in transverse rows ; the 



the blind-worm (§ nat. size). 



ears are usually covered with integument ; and the palate is toothless. Attaining 

 a length of from 10 to 12, or even 14, inches, of which at least half is occupied 

 by the tail, the blind-worm is of almost equal thickness throughout, although 

 tapering slightly at the tail. The head is short and small; the eyes, although 

 minute, are bright and piercing ; and the tongue is but slightly notched. In 

 the immature state the upper-parts are silvery, with a dark line down the middle 

 of the back, while the sides and under-parts are blackish. The markings, however, 

 often disappear in the adult, or may be replaced by dark dots, the upper surface 

 becoming at the same time brown or bronzy. The range of the species includes 

 Europe, Western Asia, and Algeria. 



Gentle and inoffensive in its habits, and rarely attempting to bite even when 

 rudely handled, the blind- worm is commonly regarded as one of the most noxious 

 of reptiles. When captured, it usually contracts its muscles so forcibly as to 



