and of a new British Species of Viper. 51 
Feet have all five. toes, with nails. 
Length 4-f 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 4 , 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. 
Belly 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 with 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 
