Crossodactylus schmidti Gallardo, 1961, Neotropica, 7: 34. Holotype: MACN 2943, by original designation. Type locality: "Yacú-poí, sobre río Uruguaí, 30 km al E de Puerto Libertad, Misiones, Argentina".
Schmidt's Spinythumb Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 71).
Misiones, Argentina; western Paraná, extreme northern Rio Grande do Sul, and western Santa Catarina, Brazil; southeastern Paraguay, 300-750 m elevation.
In the Crossodactylus schmidti group of Caramaschi and Sazima, 1985, Rev. Brasil. Zool., 3: 43-49. See Cei, 1980, Monit. Zool. Ital., N.S., Monogr., 2: 316-317, for account. Brusquetti and Lavilla, 2006, Cuad. Herpetol., 20: 21, briefly discussed the range in Paraguay. See statement of geographic range, habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 619. Caldart, Iop, Santos, and Cechin, 2010, Biota Neotrop., 10: 143-147, provided a record for extreme northern Rio Grande do Sul, Brazil and provided a locality map for the species. Lucas and Garcia, 2011, Check List, 7: 13-16, provided records for western state of Santa Catarina, Brazil, and discussed the range. Machado, 2012, Check List, 8: 500-501, provided a record for northern Rio Grande do Sul, Brazil, and commented on the range. Bastiani, Garcia, and Lucas, 2012, Check List, 8: 262-263, provided a record for Santa Catarina, Brazil, and commented on the range.
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