Cycloramphus carvalhoi Heyer, 1983, Arq. Zool., São Paulo, 30: 297. Holotype: AL-MNRJ 132, by original designation. Type locality: "Brasil; Rio de Janeiro, Brejo da Lapa, Alto Itatiaia, 2200 m".
Carvalho's Button Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 71).
Known from the type locality (Alto Itatiaia, Rio de Janeiro) and about 200 km to the southwest in the Municipality of Campos do Jordão (São Paulo), Brazil.
Martins, Gomes, Bernardo, and Suarez, 2007, Herpetol. Rev., 38: 473-474, provided the record from the state of São Paulo, Brazil.
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