A new species of spiny-backed tree frog, genus Osteocephalus (Anura, Hylidae), from the Yanachaga Chemillén National Park in central Peru

Dorsolateral and ventral views of Osteocephalus vasquezi sp. nov. A, B. Dorsolateral and ventral view of holotype CORBIDI 7284, SVL = 51.4 mm; C, D. Dorsolateral and ventral view of adult male, CORBIDI 7285, SVL = 40.8 mm; E, F. Dorsolateral and ventral view of adult female CORBIDI 7280, SVL = 65.9 mm; G. Dorsolateral view of a recently metamorphosed CORBIDI 7304, SVL = 13 mm; H. Dorsolateral view of tadpole in stage 42. Photographs by P.J. Venegas.