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Psychrophrynella usurpator

Psychrophrynella usurpator is a species of frogs in the Craugastoridae family. It is endemic to the Cusco Region, Peru, and only known from near Abra Acjanacu, a mountain pass in the Cordillera de Paucartambo, the easternmost Andean range towards the Amazonian lowlands, at elevations of 3,270–3,539 m (10,728–11,611 ft) asl. It is named usurpator because these frogs were previously misidentified as Noblella peruviana—in a sense, they had "usurped" the name of another frog species.