Papeis Avulsos de Zoologia - Hylodes new species - 2001 (original) (raw)

A new species ofthe leptodactylidfrog genus Hylodes is describedfrom Praia do Guarau (24°23' Sand 47°01' W), in the coastal Atlantic Forest ofthe State of sao Paulo, southeastern Brazil. The new species is a member ofthe Hylodes nasus group and is characterized by its small size, by a tubercular dorsal skin and by a conspicuous red coloration around the vent in males. Descriptions ofthe advertisement call, tadpole morphology and data on natural history are provided. The new species is thought to be related to the parapatric I Iylodes asper. Thesystematic status ofHylodes species groups and the allopatric speciation mechanisms probably involved in the differentiation ofthe Atlantic Forest stream-adaptedfrogs are discussed.