Eleutherodactylus megalotympanum Shannon and Werler, 1955, Trans. Kansas Acad. Sci., 58: 372. Holotype: F.A. Shannon 4084, by original designation; now presumably in UIMNH. Type locality: "on the slopes of Volcán San Martín, Veracruz, elevation 3-4000 ft.", Mexico.
Eleutherodactylus (Craugastor) megalotympanum — Hedges, 1989, in Woods (ed.), Biogeograph. W. Indies: 317. by implication.
Craugastor megalotympanum — Crawford and Smith, 2005, Mol. Phylogenet. Evol., 35: 551. by implication; Frost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 360.
Craugastor (Hylactophryne) megalotympanum — Hedges, Duellman, and Heinicke, 2008, Zootaxa, 1737: 45.
San Martin Robber Frog (Liner, 1994, Herpetol. Circ., 23: 20; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 77; Liner and Casas-Andreu, 2008, Herpetol. Circ., 38: 10).
Sierra de los Tuxtlas, Veracruz, Mexico, ca. 900-1200 m elevation.
In the Eleutherodactylus (Craugastor) alfredi group of Lynch and Duellman, 1997, Univ. Kansas Mus. Nat. Hist. Spec. Publ., 23: 228. Removed from a monophyletic Craugastor by Lynch, 2000, Rev. Acad. Colomb. Cienc. Exact. Fis. Nat., 24: 130. In the Craugastor (Hylactophryne) bocourti species series of Hedges, Duellman, and Heinicke, 2008, Zootaxa, 1737: 45. See map, description of geographic range and habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 306.
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