SNAKE-LIZARDS. 



139 



length attained by this reptile, though it has been 

 known considerably longer. It is nearly of equal 

 thickness throughout, but rather more slender 

 towards the tail, the tip of which is abrupt. The 

 colour is brownish grey, with a silvery gloss ; 



SLOW-WORM. 



several rows of obscure dark dots run down the 

 sides, and a black line down the middle of the 

 back. In some varieties, however, these marks are 

 scarcely visible. The under-j^arts are bluish-black. 

 The Slow-worm is spread over nearly the whole 

 of Europe, from Sweden and Russia to the shores 

 of the Mediterranean : it is found in the Swiss 

 Alps at an elevation of nearly 6000 feet ; it is 

 well known in every part of Great Britain, but 



