THE BATRACHIA OF NORTH AMERICA. 441 



RANA DRAYTONI Bd. & Gird. 



Bona draytoni Bd. & Gird., Proceed. Ac. Pbila. (1862), p. 174; Girard, U. S. Expl. Ex- 



pedi., Herp., p. 23, Pi. ii, tigs. 19-24. 

 Bana Jeconiei Bd. & Gird., Proceed. Ac. Phila. (1853), p. 301, Giinth., Cat., p. 15; 



Brocchi, Bull. Soc. Philom., (F.) i, p. 179, and Miss. Sc. Mex., Batr., p. 14, PL 



IV, f. 1. 

 Bana nigricans, Hallow., Proceed. Ac. Phila. (1854), p. 96; Boulenger, Bull. Soc. Zool. 



Fr. (1880), p. 207; Brocchi, Miss. Sc. Mex., Batr., p. 15, PI. iv, fig. 3. 

 Bana longipes, Hallow., U. S. Expl. Surv., x (1859), iv Zool., p. 20, PI. x, fig. 1. 

 Epirhexis longipes Yarrow, Check List and Catal. of Spec, of N. Amer. Reptiles, Batr.^ 



(1883), p. 176. Not of Baird & Cope. 



S]). ch. — Body stout. Head broader than long. Eye large; con- 

 tained two and a half times in chord of jaw, and distant one-half time 

 its diameter from the rictus. Tympanum three-fourths leugth of eye- 

 fissure. Body with tubercles above, each with a pore ; without decided 

 asperities. A glandular fold along upper jaw and a broad depressed 

 ridge on each side of back. Fem ur and tibia nearly equal, about half 

 the length of body, shorter than hind foot. Hind foot well webbed j 

 terminal joints free, as are second joints of second, third, and fourth 

 toes on inner edges. Above yellowish-olive, with blotches of darker, 

 interpersed with dark dots. Inferior and inner surfaces greenish- white, 

 everywhere obsoletely blotched finely with darker. 



There are two subspecies of the Bana draytoni, which inhabit differ- 

 ent zoological subregions. They diifer as follows : 



Hind foot two and a half times the length of the head; skin above tubercular ; a 

 dark ear-patch ; larger B, d. drayioni. 



Hind foot twice length of head; skin above smooth; no dark ear-patch; size 

 smaller B. d. onca^ 



Bana draytoni draytoni Bd. & Gird.* 



Body stout and heavy. Limbs massive and well developed. Head 

 rather broader than long. Nostrils moderate, with the usual papilla 

 behind, situated nearer the snout than the eye. A triangular exca- 

 vation in front of eye, extended backwards under the eye. Eye large, 

 contained two and one half times in chord of commissure, one-half 

 of its diameter from rictus. Tympanum small, indistinct, transversely 

 elongated; rather more than half the length of eye (its shortest diameter 

 about equal to half this length). A glandular fold or ridge on the back- 

 ward prolongation of the jaw, interrupted at rictus. Inner nostrils 

 elliptical. Vomerine teeth in two series, obtuse-angled behind, where 

 they are separated by an interval less than their distance anteriorly 

 from nostrils, the ridges ranging with the centers of the uares, and the 

 teeth on a line with their posterior margin. Tongue not large. 



Skin thick and leathery (apparently the case in most frogs from the 

 Pacific coast) ; above it is uniformly covered with depressed and soft- 

 ened tubercles, each tubercle with a distinct pore, sometimes with a^ 



'Phite 51, fig. 11. 



