Bolivian Spiny-backed Frog

Osteocephalus castaneicola is a species of frog in the family Hylidae. It is found in lowland Amazonia of northern Bolivia, adjacent southeastern Peru, and western Brazil (Acre, south-central Amazonas, and Rondônia). It breeds in water-filled fruit capsules of the Brazil nut, a characteristic also alluded to in its specific name castaneicola derived from the Latin castanea (horse chestnut, Aesculus), the root of the vernacular name castaña for the Brazil nut, together with the Latin colō meaning