THE BATRACIIIA OF NORTH AMERICA. 



277 



dusky brown above aud dingy white below. The posterior extremities 

 are colored, like the back above, with bars of yellowish brown, and are 

 dingy white below. 



After a study of the numerous specimens in the collection of the Na- 

 tional Museum, I am convinced that this species is entitled to full recog- 

 nition. The differences from the B. lentiginosus, its nearest ally, are 

 numerous. These include the form of the cranial crests, the shape of the 

 parotoid glands, and the development of the metatarsal spurs. It is also 

 easily recognizable by the coloration. 



What I believe to be a large young specimen of this species served 

 as the type of my Bnfo dipternus. Although an inch and a half long, 

 this individual had not developed a trace of the cranial crests. The 

 dorsal spots also are smaller than in any specimen I have seen. I ob- 

 tained two other specimens of about the size of the type and three 

 smaller ones near the Judith liiver, Montana. 



This is chiefly a species of the plains; but it extends into the Eocky 

 Mountains also. 



Bufo coguatiis Say. 

 RESERVE SERIES. 



Catalorjuo 



No. of 



uumljer. 



spec. 



4183 



2 



43GG 



8 



2)63 



1 



2502 



1 



25GI 



2 



2G35 



10 



25G7 



1 



5234 



1 



2564 



2 



2566 



6 



8507 



2 



4626 



1 



9429 



1 



9428 



1 



2565 



3 



9476 



1 



4180 



2 



11578 



8 



9450 



1 



Locality. 



When 

 collected. 



From whom received. 



Nature of 

 specimen. 



Colorado River 



Pole Creek, Ark . . 

 Red River, Ark . . . 

 Fort Pierre, Nebr. 



Salt Plains 



Fort Riley, Kans.. 



Kansas 



Goahuila, Mexico . . 



Sand Hills 



Fort Garland, Colo , 

 Nebraska 



July 9, 1857 



1853 



.J^^ly 23, 1873 



Fort Garland, Colo . 



MoUhausen 



Dr. Webb 



W.S.Wood 



Capt. R. B. Marcy 



Dr. Evans 



J.H.Clark 



Dr. W. A. Hammond, IJ. 



S.A. 



R. Kennicott 



Lieut. B. Uonch, U. S. A. . , 



Dr.F. V.Hayden 



H. W. Henshaw 



Capt. J. H. Simpson, U. S. 



A. 



Little Blue River, Kans 



Ralston, Ariz , 



Near Colorado River. .. 

 Fort Kearny, Nebr .... 

 California . ! 



Dr. J. G-. Cooper 



Dr. C.G.Newberry 



do , 



W. S. Wood 



Dr. J. G. Cooper — 



Alcoholic. 



Young. 



Alcoholic. 



Do. 



Do. 



Do. 



Do. 



Do. 

 Do. 

 Do. 

 Do. 

 Do. 



Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 



BUFO LENTIGINOSUS Shaw. 



Zoology, 1803, iii, i, p. 173, tab. Liii ; Giintli. Cat. Batr. Sal. BrU. Mas., 

 1868, p. 63; Cope Check List Batr. Rept. N. Am. IrtTf), p. 29, parte 

 maj.; Bonlenger, 2d ed., Catal. Batr. Sal. Brit. Mus.,1882, p. 308. 



Cranium with distinct osseous crests, which form straight lines, one 

 over each orbit, which is continued posterior to it for a short distance. 

 A postorbital crest extends at right angles to the supraorbital, and pre- 

 sents an obtuse angle or a short ridge posteriorly at the superior border 

 of tlie tympanic disk. No considerable crest directed inwards from the 



