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ON THE FAUNA OF IRELAND. 383 
PART IV. 
Crass REPTILIA. 
Order 1.—TEsTUDINATA. 
Treland. Great Britain. 
Chelonia Caouana, Schw. 
0 Chelonia imbricata, Schw. 
0 Sphargis coriacea, Gray. 
A single specimen of C. Caowana has been taken alive on 
the coast of Donegal*. In the British catalogue this species 
has a place from the occurrence of an individual on the 
Devonshire coast. 
C. imbricata and §. coriacea have each been obtained on 
three occasions on the coasts of Great Britain. 
Order 2.—Saurtia. 
Ireland. Great Britain. 
0 Lacerta agilis, Z. Beil. 
Zootoca vivipara, Wagl. Beil. ‘ == 
Z. vivipara prevails over the island. Lacerta viridis, stated 
by Ray to have been found in Ireland, is at present quite un- 
known. Mr. Bell in his “ British Reptiles” suggests that 
‘“a green variety of L. agilis, L.., was probably alluded to: this 
is more likely than that the true L. viridis was meant; but 
the L. agilis, L., has not been distinguished as an Irish spe- 
cies.” It has but lately been added to the British Fauna, and 
from specimens obtained in the South of England. 
Order 3.—OpruHipIA. 
Ireland. Great Britain. 
0 Anguis fragilis, Z. 
0 Natrix torquata, Ray. 
0 Pelius Berus, Merr. 
Ireland has ever been free from the presence of Ophidian 
Reptiles. As there is no physical obstacle to their being 
indigenous to the island, it can only be said, that as all 
animals have geographical limits assigned to them, so these 
have Great Britain as their western boundary within her 
parallel of latitude. 
* See Annals of Natural History, vol. v. p. 8. 
