Abstract
The present study describes for the first time the advertisement call of Ceratophrys joazeirensis Mercadal de Barrio, 1986. This rare explosive breeding species is endemic to the semi-arid Caatinga biome and is known only from four localities in northeastern Brazil: Municipality of Juazeiro, State of Bahia (type locality); Municipalities of Araruna and Triunfo, State of Paraíba; and Municipality of Passa and Fica, State of Rio Grande do Norte (Mercadal de Barrio, 1986; Vieira et al. 2006; Santos et al. 2009).
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