The tadpole of Scinax nebulosus (Spix, 1824) is described and illustrated from specimens collected in the state of Pernambuco, Northeastern Brazil. The presence of a labial arm in the oral disc, a diagnostic feature of the tadpole of the Scinax rostratus group, is reported. The previous identification of S. nebulosus tadpoles in the literature is questioned and a comparison with all other known tadpoles of the Scinax rostratus group is provided, based on literature.
Scinax rostratus group; labial arm; Brazil; Pernambuco
