LITERATURE CITED
Reading edition
Dixon, J. R.
1957. Geographic variation and distribution of the genus Tomodactylus in Mexico. Texas Jour. Sci., 9:379-409, December.
Duellman, W. E.
1958. A review of the frogs of the genus Syrrhophus in western Mexico. Occas. Papers Mus. Zool. Univ. Michigan, 594:1-15, June 6.
1961. The amphibians and reptiles of Michoacan, Mexico. Univ. Kansas Publ. Mus. Nat. Hist., 15:1-148, December 20.
Firschein, I. L.
1954. Definition of some little understood members of the leptodactylid genus Syrrhophus, with a description of a new species. Copeia, 1:48-58, February 19.
Gallardo, J. M.
1965. A proposito de los Leptodactylidae (Amphibia Anura). Papeis Avulsos, 17:77-87, January 30.
Gorham, S. W.
1963. The comparative number of species of amphibians in Canada and other countries. III. Summary of species of anurans. Canadian Field-Nat., 77:13-48, March.
Griffiths, I.
1959. The phylogeny of Sminthillus limbatus and the status of the Brachycephalidae (Amphibia Salientia). Proc. Zool. Soc. London, 132:457-87, May.
Kellogg, R.
1932. Mexican tailless amphibians in the United States National Museum. Bull. U. S. Natl. Mus., 160:224 pp., March 31.
Lloyd, J. J.
1963. Tectonic history of the south Central-American orogen, in Childs and Beebe eds., Backbone of the Americas. Amer. Assoc. Petroleum Geol., pp. 88-100.
Lynch, J. D.
1965. A review of the eleutherodactylid frog genus Microbatrachylus (Leptodactylidae). Nat. Hist. Misc., 182:1-12, December 15.
Myers, G. S.
1962. The American leptodactylid frog genus Eleutherodactylus, Hylodes (= Elosia), and Caudiverbera (= Calytocephalus). Copeia, 1:195-202, April 11.
Noble, G. K.
1925. An outline of the relation of the ontogeny to phylogeny within the Amphibia. I. Amer. Mus. Nov., 165:1-17, April 16.
Piatt, J.
1934. The systematic status of Eleutherodactylus latrans (Cope). Amer. Midl. Nat., 15:89-91, February 15.
Smith, H. M. and Taylor, E. H.
1948. An annotated checklist and key to the Amphibia of Mexico. Bull. U. S. Natl. Mus., 194:1-118. June 7.
Taylor, E. H.
1952. A review of the frogs and toads of Costa Rica. Univ. Kansas Sci. Bull., 35:577-942, July 1.
Zweifel, R. G.
1956. A survey of the frogs of the augusti group, genus Eleutherodactylus. Amer. Mus. Novitates, 1813:1-35, December 23.
Transmitted July 11, 1967.
31-9418
Transcriber's Notes
Illustrations have been moved to avoid breaking up paragraphs of text.
Page 507: Changed know to known (are not know in Tomodactylus).
Page 507: Added closing parenthesis in Fig. 2 caption after × 3.
Page 509: Changed compeltely to completely (compeltely roofed skulls).
Page 512: Veracruuz may be a typo for Veracruz (Sinaloa to Veracruuz).
Page 514: Changed two occurrences of Hylatophryne to Hylactophryne.