AMERICAN FROGS OF THE GENUS RANA. 473 



This species is known from a single female specimen from Ventanas 

 in Durango, Mexico. It is nearh' allied to R. palmipes. 



20. Rana palmipes. 



Raria palmipes Spix, Nov. Spec. Test. Ran. Bras., p. 5, PL v, fig. 1 (1824); 

 Peters, Mon. Berl. Ac. 1872, p. 205, and 1873, p. 622; Bouleng., Cat. Batr, 

 Ecaud., p. 48 (1882), Ann. and Mag. N. H. (6) II, 1888, p. 40, and VIII, 

 1891, p. 453; Gunth., Biol. C.-Am., Rept., p. 202 (1900); Bouleng., Proc. 

 Zool. Soc. 1913, p. 1026, and Ann. and Mag. N. H. (9) III, 1919, p. 412; Noble, 

 Bull. Amer. Mus. N. H. XXXVIII, 1918, p. 316, PI. xrv. 



Rana juninensis Tschudi, Faun. Per., Herp., p. 64 (1845). 



Ranula gollmeri Peters, Mon. Berl. Ac. 1859, p. 402. 



Rana affinis Peters, 1. c, and 1871, p. 402. 



Rana clamata var. guianensis Peters, Mon. Berl. Ac. 1863, p. 412. 



Ranula affinis Cope, Proc. Ac. Philad., 1866, p. 130, and 1868, p. 117; 

 SxJMiCHRAsr, BuU. Soc. Zool. France, 1880, p. 189. 



Pohlia palmipes Steind., Novara, Amph., p. 15, PI. i, fig. 5 (1867); Gunth., 

 Zool. Rec, IV, p. 147 (1867). 



Ranvla brevipalmaia Cope, Proc. Ac. Philad., 1874, p. 131. 



Ranvla nigritatus Cope, 1. c. 



Rana vaillanti Brocchi, Bull. Soc. Philom. (7) I, 1877, p. 175, and Miss. So. 

 Mex., Batr., p. 11, PI. ii, fig. 1 (1882). 



Hylarana brevipalmaia Brocchi, op. cit., p. 65. 



Rana copii Bouleng., Cat. Batr. Ecaud., p. 49. 



Rana nigrilatus Bouleng., 1. c. 



Ranula palmipes Cope, Bull. U. S. Nat. Mus., No. 32, 1887, p. 19. 



Rana bonaccana GItstth., Biol. C.-Am., Rept., p. 201, PI. lx, fig. B (1900). 



RaTia melanosoma Gunth., op. cit., p. 203, PI. lxiii, fig. B. 



Rana breinpalmata Fowler, Proc. Ac. Philad., 1913, p. 166, PI. ix. 



Rana brevipalmaia rhoadsi Fowler, 1. c. 



Vomerine teeth in small oblique groups or short transverse or oblique 

 series between the choanae or on a level with the posterior borders 

 of the latter, equally distant from each other and from the choanse 

 or nearer to each other. 



Head as long as broad or a little broader than long, rather strongly 

 depressed ; snout roimded or obtusely pointed, projecting beyond the 

 mouth, as long as or longer than the eye, which is large and very 

 prominent; canthus rostralis distinct; loreal region moderately ob- 

 lique, concave; nostril equally distant from the eye and from the tip 

 of the snout, or a little nearer the latter; distance between the nostrils 

 equal to or a little greater than the interorbital width, which is equal 



