Cycloramphus juimirim Haddad and Sazima, 1989, Herpetologica, 45: 425. Holotype: MZUSP 65376, by original designation. Type locality: "near the Rio Verde, Estação Ecológica de Juréia, Iguape, São Paulo, Brazil (approximately 24° 30′ S, 47° 15′ W)".
Rio Verde Button Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 71).
Known only from the type locality (Estação Ecológica de Juréia, Iguape, São Paulo, Brazil).
In the Cycloramphus fuliginosus group, most similar to Cycloramphus bandeirensis according to the original publication.
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