Description of the advertisement call and morphometry of Haddadus binotatus (Spix, 1824) from a population from southern Bahia, Brazil.

Currently there are only two recognized species in the genus Haddadus; however advertisement calls are known for neither of them. Herein, we describe the advertisement call of Haddadus binotatus from males recorded at the Serra Bonita reserve in the municipality of Camacan in southern Bahia, Brazil and provide morphometric data to allow further comparison with individuals from other localities. The advertisement call of the studied population can be characterized as short and low-pitched, with a low volume sound, consisting of a single note made up of 3-6 pulses and a length of 0.012-0.033 s. The dominant frequency ranges from 1033.6-1464.3 Hz. The SVL of males ranged between 32-38.6 mm and females between 50-55.8 mm. Females were significantly larger than males. Our data can help solving identity problems within this species, which is thought to be a species complex. [ABSTRACT FROM AUTHOR]