124 ZEBRA FROG. 



cular tribe : the fore feet are tetradactylous, and 

 the hind pentadactylous : the head is large in pro- 

 portion, the eyes protuberant, and the mouth wide. 

 The specimen figured by Seba measures about five 

 inches from the nose to the end of the body. 



VAR. { 



Rana Boans. R. pallida, rufo marmorata, pedibus. anterioribus 



subpalmatis, posterioribus palmatis. 

 Pale Frog, marbled with rufous, with the fore feet subpalmated, 



the hind feet palmated. 

 Rana boans ? JR. corpore Icevi, subtus punctis contiguis, pedibus 



palmatis vnguibus orbiculato-dilatatis. Un. Syst. Nat. p. 358. 

 Rana Surinamensis. Seb. 1. p. 114. t. 7l.Jig. 3 ? 4 ? 



THIS appears to differ so slightly from the above, 

 that it seems doubtful whether it should not be 

 considered as a variety, rather than as specifically 

 distinct. The size and general markings are simi- 

 lar, but the fore feet are not webbed ; or at least 

 not very distinctly. May it not constitute a sexual 

 difference ? 



VAR. ? 



Rana Vcnulosa. R. pallida, fusco Tenoso-maculata, pcdibusjissis, 

 Pale Frog, veined and spotted with brown, with unwebbed feet, 

 Rana Virginiana altera. Seb. Mvs. 1. p. 115. t. 72. f. 4. 



THIS appears to be no other than a younger or 

 less advanced specimen of the former animal ; dif- 

 fering only in being much smaller, less regularly 

 and beautifully marked, and having no apparent 



