SNAKE-LIKE LIZARDS. 
147 
the Miocene deposits of Germany, some of which belong to an extinct genus 
( Propseudopus). 
Blind-Worm. 
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 (§ liat. 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 
