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Two new species of hylid frogs, genus Osteocephalus, from Amazonian Ecuador

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image of Amphibia-Reptilia

We describe two new species of treefrogs of the genus Osteocephalus from primary forests in northeastern Amazonian Ecuador. One is a small to medium-sized species without or with only few flat dorsal tubercles in males and a large light subocular area. Tadpoles assigned to this species were found in a bromeliad and had eaten fertilized frog eggs, most likely provided by the parents. The second species is small to medium, has a smooth dorsum both in males and females and no light subocular spot.

Resumen. Describimos dos nuevas especies de ranas arborícolas del género Osteocephalus de bosques primarios en la Amazonía nororiental en Ecuador. La primera especie es de pequeña a mediana sin o con pocos tubérculos dorsales aplanados en machos y una mancha clara subocular grande. Los renacuajos asignados a esta especie fueron encontrados en una bromelia y habían comido huevos de rana fertilizados, probablemente proveídos por la madre. La segunda especie es de pequeña a mediana, tiene dorso liso tanto en hembras como en machos y no tiene manchas suboculares claras.

Affiliations: 1: Panoramastr. 14, 74405 Gaildorf, Germany; 2: Departamento de Ciencias Biológicas, Pontifica Universidad Católica del Ecuador, Apartado 17-01-2184, Quito, Ecuador; 3: Forschungsinstitut Senckenberg, Senckenberganlage 25, 60325 Frankfurt am Main, Germany; 4: Escuela Politécnica Nacional, Departamento de Ciencias Biológicas, Apartado 25759, Quito, Ecuador


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