Madre Selva field station, Depto Loreto, Peru. January 13, 2011.
Formerly Phrynohyas venulosus (if you look up the entry for Trachycephalus typhonius in the American Museum of Natural History’s Amphibian Species of the World list, you might be impressed by the long list of both common and scientific names that this frog has held). ‘Milk frog’ comes from the milky white toxins that flow from the many glands covering this frog when it is handled.
My Flickr album for this species is here.