MEXICAN TAILLESS AMPHIBIANS 



41 



Bufo canaliferus 



Museum 



Locality collected 



Date collected 



By whom collected or 

 from whom received 



A.M.N.H.... 



U.S.N. M.--- 



Do 



Do 



Oaxaca: 



Chivela 



Santa Eflgenia, Tehuantepec. 



Tapana, Tehuantepec 



Tehuantepec 



Paul D. R. Ruthling. 

 Francis Sumichrast. 



Do. 



Do. 



' Young. 



Cotypes. 



BUFO COCCIFER Cope 



Figure 6 



1866. Bufo coccifer Cope, Proc. Acad. Nat. Sci. Philadelphia, vol. 18, p. 130, 

 May.— Cope, 1876, Journ. Acad. Nat. Sci. Philadelphia, ser. 2, vol. 8, pt. 2, 

 p. 100, pi. 23. fig. 5. — NiEDEN, 1923, Das Tierreich, Lief. 46, Amphibia, 

 Anura I, pp. 76, 132. 



Type locality. — Arriba, Costa Rica. 



Range. — Specimens have been taken as far north as Tehuantepec, 

 in the State of Oaxaca, and as far south as San 

 Jose, Costa Rica. 



Remarks. — It is rather surprising that so httle 

 is known in regard to the habits of this toad, for 

 it has a rather extensive range on the Pacific 

 slope of South America. It is brownish colored, 

 with a yellowish vertebral line and irregular wavy 

 chestnut-brown markings on the upperparts, and 

 has a rather broad head, high cranial crests, 

 small tympanum, and small circular parotoid 

 glands. 



The type of this species (U.S.N.M. No. 6490) 

 was presented to the National Museum by 

 Charles N. Riotte, who was the United States 

 minister to Costa Rica for some years prior to 

 1868. 



Specimens examined.— One (U.S.N.M. No. 51175), collected by 

 Francis Sumichrast at Juchitan, Tehuantepec, Oaxaca. 



BUFO COGNATUS Say 



Plains Toad 



Figure 7 



1823. Bufo cognatus Say, in Long, Stephen H., Account of an expedition from 

 Pittsburgh to the Rocky Mountains, vol. 2, p. 190.— Cope, 1889, U. S. Nat. 

 Mus. Bull. 34, p. 275, fig. 67.— Dickerson, 1906, The frog book, pp. 99-102, 

 figs. 85-92, col. pi. 5, fig. 2. — Nieden, 1923, Das Tierreich, Lief. 46, Amphibia, 

 Anura I, pp. 75, 127, fig. 180.— Stober, 1925, Univ. California Publ. Zool., 

 vol. 27, pp. 187-192, pi. 11, fig. 31a. 



1879. Bufo dipternus Cope, Amer. Nat., vol. 13, no. 7, p. 437, July (Montana). 



3 



Figure 6.— Head of Bufo 

 cocci/er (U.S.N.M. No. 6490) 

 from Arriba, Costa Rica: a. 

 Lateral view; 6, dorsal view. 

 Type specimen 



