A New Species of the Scinax granulatus Group (Hylinae: Scinaxini) from Northeastern Brazil

Abstract

We describe a new species in the Scinax granulatus group from the Atlantic Forest of northeastern Brazil and includethe new species in an updated phylogenetic hypothesis for the group. The new species differs from all other species inthe S. granulatus group by a combination of characters, such as a weakly bilobate vocal sac, moderately developed preandpostaxial webbing of Toe IV, and advertisement call features. The newly described taxon is more similar with S.tropicalia, a species that is not closely related; both can be distinguished by the red-colored iris in the new species anddifferences in pulse rate of the call. The new species was recovered as the sister taxon of a clade including all otherspecies of the S. granulatus group. However, the low support of some internal clades suggests that the knowledgeabout relationships in this group is still incomplete.