1885-1902. Biologia Centrali-Americana. Reptilia and Batrachia. 326 pp., 76 pls. Syrrhophus section dated 1900.
KELLOGG, R.
1932. Mexican tailless amphibians in the United States National Museum. Bull. U.S. Natl. Mus., 160.
LANGEBARTEL, D. A., and F. A. SHANNON
1956. A new frog (Syrrhophus) from the Sinoloan lowlands of Mexico. Herpetologica, 12:161-65.
LYNCH, J. D.
1963. The status of Eleutherodactylus longipes (Baird) of Mexico (Amphibia: Leptodactylidae). Copeia, (3):580-81.
1964. Additional hylid and leptodactylid remains from the Pleistocene of Texas and Florida Herpetologica. 20:141-42.
1967. Epirhexis Cope, 1866 (Amphibia: Salientia): request for suppression under the plenary powers. I. N. (S). Bull. Zool. Nomencl., 24:313-15.
1968. Genera of leptodactylid frogs in Mexico. Univ. Kansas Publs., Mus. Nat. Hist., 17:503-15.
MARTIN, P. S.
1958. A biogeography of reptiles and amphibians in the Gomez Farias region, Tamaulipas, Mexico. Misc. Publs. Mus. Zool. Univ. Michigan, 101:1-102.
MILSTEAD, W. M., J. S. MECHAM, and H. MCCLINTOCK
1950. The amphibians and reptiles of the Stockton Plateau in northern Terrell County, Texas. Texas J. Sci., 2:543-62.
NEILL, W. T.
1965. New and noteworthy amphibians and reptiles from British Honduras. Bull. Florida State Mus., 9:77-130.
NIEDEN, F.
1923. Anura I ... Das Tierreich. Lief., 46:1-584.
PETERS, W.
1871. Ueber neue Amphibien ... des Konigl. Zoologischen Museums. Monatsb. k. k. Preuss. Akad. Wiss. Berlin, 1870:641-52.
SCHMIDT, K. P., and T. F. SMITH
1944. Amphibians and reptiles of the Big Bend Region of Texas. Field Mus. Nat. Hist., zool. ser., 29:75-96.
SMITH, H. M.
1947. Notes on Mexican amphibians and reptiles. J. Washington Acad. Sci., 37:408-12.
SMITH, H. M., and E. H. TAYLOR
1948. An annotated checklist and key to the Amphibia of Mexico. Bull. U.S. Natl. Mus., 194:1-118.
STEJNEGER, L.
1915. A new species of tailless batrachian from North America. Proc. Biol. Soc. Washington, 28:131-32.
A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope · The Wunder Library — complete classics, free to read, with narration.