A new species of the bokermannohyla circumdata group (anura: Hylidae) from the coastal forests of bahia, Northeastern Brazil

Abstract

We describe a new species of tree frog related to the Bokermannohyla circumdata group, the northernmost record from Atlantic Forest remnants in eastern Bahia, northeastern Brazil, within regions known as Vale do Jiquiri, Baixo Sul, and Litoral Sul. The new species is diagnosed by medium size (snoutvent length 46.864.1 mm), head longer than wide, small tympanum, posterior surfaces of thighs with dark brown transverse stripes without additional thin stripes between them, vocal slits in adult males, and distinct advertisement call with a single note composed of 30110 pulses distributed within 29 pulse groups, similar to the bleating of a goat. The new species is morphologically similar to B. hylax and B. lucianae, but is readily distinguished by the presence of barred posterior surfaces on the thighs without thin stripes between them (immaculate in B. lucianae; thin stripes intercalated with wider stripes in B. hylax) and by its distinct vocalization. © 2009 by the American Society of Ichthyologists and Herpetologists.