44 ZOOLOGY. 



BUFO AMERICANUS, Leconte. 

 PLATE XX V, FIG. 2. 



Bvfo amcricanus, LECONTE, Holbrook s N. Am. Herpetology, V, 1842, 17; pi. iv. GIRARD, in Keptiles U S. B. S. 

 1859, 25 ; pi. xxxix, fig. 1-4. 



SPEC. CHAR. Head above grooved, a ridge from the snout to the occiput, hence at almost right angle to the tympanum. 

 The ridge from either side is slightly diverging from before backwards. Skin upon the head thick, and adhering to the skull. 

 Parotids sub-reniform. Tympanum well developed. A subgular vocal sac in the male sex. Limbs large and stout. First 

 finger larger than the second. A large carpal corneous disk and a small one. No membranous fold at the inner lower edge of 

 the tarsus. Toes semi-palmated. Two metatarsal tubercles, the internal large and spade-shaped, the external small and 

 sub-conical. Large papilla on the back. Greenish or yellowish brown above, with scattered black patches or spots. A 

 vertebral fuscous vitta or streak. Two black patches under the eye, occasionally spotted about the nostrils and over the jaws. 

 Beneath dirty yellowish. (Girard.) 



2558, 2559. Fort Smith, Arkansas. Dr. Shumard. 



BUFO NEBULIFER, Girard. 







Bvfo granulosus, B. & G. Fr. A. N. Sc. VI, 1852, 173. (Not of Spix.) 

 Bufo nebidifer, GIRARD, Pr. A. N. Sc. VII, May, 1854, 87. 



SPEC. CHAR. Upper surface of head deeply excavated or concave ; concavity bordered with conspicuous ridges. Skin very 

 thin and firmly adhering to the skull. Parotid small ; eyes and tympanum rather large. Tongue moderate, broadest posteriorly. 

 Upper jaw emarginated. Inner finger much longer than the second, which is longer than the fourth. Two well developed 

 carpal disks. No membranous fold along the tarsus. Toes semi-palmated ; two metatarsal tubercles. Palm of hands and sole 

 of feet tuberculous. Yellowish brown with a dorsal broad streak of the same tint. An interocular black bar on either side of 

 the dorsal streak extending to the whole length of the body. Sides maculated ; upper part of limbs barred. Beneath unicolor 

 in the adult, spotted in the young. (Girard.) 



2592. San Pedro, Texas. 2601. San Antonio. Dr. Kennerly. 



BUFO WOODHOUSII, Girard. 

 PLATE XXV, FIG. 1. 



Bufo dorsalis, HALLOWELL, Pr. A. N. Sc. VI, 1852, 181. IB. Sitgreaves Report, 1853, J42 ; pi. xix. (Not of Spix.) 

 Bufo woodhousii, GIRARD, Pr. A. N. Sc. VII, May, 1854, 86. 



2632. Canadian river ; and 2646. Antelope Hills. H. B. Mollhausen. 



BUFO COGNATUS, Say. 

 PLATE XXVI. 



Bufo cognatus, SAY, Long s Exped. II, 1823, 190. HOLBROOK, N. Am. Herp. V, 1842, 21 ; pi. v. B. & G. Marcy s 

 Eeport, 1853,242; pi. xi. 



Ked river Arkansas. Bufo lentiginosus is represented on Plate XXVII for comparison. 



ACBIS CREPITANS, Baird. 



Hylodes gryllus, DEKAY, N. Y. Zool. Ill, 1842, 70; pi. xxii, fig. 61. (Not of Leconte ) 

 Acris crepitans, BAIRD, Pr. A. N. Sc. VII, 1854, 59. 



SPEC CHAR. Brownish above. The median region of head and body above bright green ; a dark triangle between the eyes. 

 Three oblique blotches on the sides, nearly equidistant ; the first behind the eye, the last on the flanks and running up on the 



