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. il. pallida, rufo marmorata, pedibus anterioribus 



subpabnatisj posterioribus palmatis. 

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



the hind feet palmated. 

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



palmatis miguibus orbiculato-dilatatis. Lin. Syst. Nat. p. 358. 

 Eana Suriiiamensis. Seb. I. p. 114. t. Tl.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 asexual 

 difference ? 



VAR. ? 



Rana Vcnulosa. R, pallida, fusco venoso-maculata, pedibus Jissis, 

 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 



