132 SCINCUS FASCIATUS. 



vulgaris, the Rana esculenta, tlie Rana temporaria, all of which arc beautifully 

 represented in the northern parts of the United States by the Bufo Americaiius, 

 the Rana helecina, and the Rana sylvatica; while in South Carolina many of the 

 animals of Egypt (nearly in the same parallel) are represented by many closely 

 alUed species — the Crocodile by the Alligator, the Trionyx iEgyptiacus by the 

 Trionyx ferox, &c. &c. Yet none of these animals are identical. 



I cannot place this and the preceding animal as Dumeril and Bibron have done 

 in their genus Plestiodon, because they lack the sphenoidal teeth, which is one of 

 its strongest characters; and though the nostril really opens in a single plate, it is 

 not in its middle, but so near its upper part, and the superior margin is so thin 

 that the plate appears almost cresuntic. 



