and of a new British Species of Viper. 51 



Feet have all five toes, with nails. 



Length 4-4- inches. 



This species I have at different times found in vast abun- 

 dance ; yet not having seen it described in any of the books 

 that I have had access to, I have ventured to call it a new spe- 

 cies, under the name, expressive of its conformation, of Oedura, 

 or Swelled-tail. 



3. LACERTA ANGUIFORMIS. VIPERINE LIZARD. 



Head very light brown above, with four dark spots ; yellowish 

 white beneath. 



Back with a black line along the middle, reaching from the head 

 to about half an inch beyond the hind legs ; on each side of 

 this a broader one of dark brown (these beyond the black line 

 unite, and reach to the end of the tail); next to these succeeds 

 a fine yellow stripe that extends to the end of the tail ; then a 

 black one, which reaches no further than the middle line, and 

 afterwards a dark brown stripe mixed with a few yellow spots 

 extending to the end of the tail. A little above the hind legs, 

 in some specimens, is a slight division of the scales, forming a 

 transverse line. 



Belli/ yellowish white, with a few black spots. 



Tail, under part dirty white, spotted with black as far as within 

 an inch of the end ; the remainder marked lengthways with long 

 bars of black. 



Legs dark brown spotted Avith black. 



Feet have all five toes, with nails. 



Length 7 inches and upwards : I saw one specimen above a foot 

 long, but was not able to catch it. 



This lizard, which I think may, with propriety, be described 

 under the name of Anguiformis, I have once or twice found 



H 2 near 





