American Species of Rana. 415 
identical with Levirana vibicaria, Cope, 1894. Except for 
the presence of feebly developed vomerine teeth, the longer 
inner finger, and the more extensive palmation of the toes 
in the former, there is almost complete agreement between 
the descriptions of the two, which are from the same part of 
Costa Rica. 
16. Rana areolata, B. & G., 1852. 
R. circulosa, Rice & Davis, 1878. 
Indiana, Illinois, Georgia, Texas. 
17. Rana capito, Leconte, 1855. 
R. areolata esopus, capito, Cope, 1886. 
Georgia, Florida. 
18. Rana tarahumare, Blgr., 1917. 
Sierra Tarahumari, N.W. Mexico, about 3000 ft. 
19. Rana boylii, Baird, 1854. 
R, pachyderma, Cope, 1883.—R. boylit muscosa, sierre, Camp, 1917. 
Oregon and California, up to 11,500 ft. altitude. 
20. Rana pustulosa, Blgr., 1883. 
Ventanas in Durango, Mexico. 
21. Rana palmipes, Spix, 1824. 
R. juninensis, Tschudi, 1845.—Ranula gollmer, Peters, 1859.—R. cla- 
mata, var. guianensis, Peters, 1863.—Ranula affinis, Cope, 1866,.— 
Pohlia palmipes, Steind., 1867.—Ranula brevipalmata, nigrilatus, 
Cope, 1874.—R. vaillanti, Brocchi, 1877.—Hylarana brevipalmata, 
Brocchi, 1882.—R. copi?, Bouleng., 1882.—. bonaccana, melano- 
soma, Giinth., 1900.—R. brevipalmata rhoadsi, Fowler, 1913. 
Central and South America, from Southern Mexico to 
Pernambuco and Peru. 
This frog is interesting as the only representative of the 
genus Rana in South America. Few species have been 
more misunderstood and have given rise to more discussion 
