Brachycephalus hermogenesi (Giaretta and Sawaya 1998) is a minute leaf-litter frog described from coastal and montane localities (0700 m) in Picinguaba (23o22' S, 44o50' W), Fazenda Capricornio, and Corcovado localities, municipality of Ubatuba, state of Sao Paulo, but it is also known to occur in the municipality of Paraty (23o13' S, 44o43' W), state of Rio de Janeiro, southeastern Brazil (Giaretta and Sawaya 1998). These are adjacent localities only ca. 20 airline km distant from each other. Dixo and Verdade (2006) later recorded the species at the Reserva Florestal Morro Grande (23o39' to 23o48' S, 47o01' to 46o55' W; coordinates taken from Metzger et al. 2006), a protected area in the municipality of Cotia, state of Sao Paulo, ca. 215 km SW-W from Picinguaba. They also stated that other records of B. hermogenesi were made for the highlands of the state of Sao Paulo, but no additional data were presented for these other localities.
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Pimenta et al. (2007) studied this question.
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