| Abstract | Two new species of Pristimantis are described from Cerro Las Antenas, on the Venezuelan versant of the Sierra dePerijá, a region that is being rapidly destroyed by extensive cultivation and civil unrest. The first species (P. lassoalcalaisp. nov.) has dirty-white spots surrounded by black in the groin and on the hidden surfaces of the hind limbs—acharacteristic shared by members of the "lentiginosus" group (Rivero 1982) from the Cordillera de Mérida—and marbledto reticulated venter. The second species (P. rivasi sp. nov.) is currently the largest member of the genus known fromPerijá, and presents conspicuous cranial crests. The two new species are assigned to the P. unistrigatus species group.
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