Distribution. E Ecuador and N Peru, S of the lower Rio Napo and the Rio Curaray (a right bank affluent of the Napo), W as far the Rio Tigre and its right bank affluent the Rio Corrientes, and E to the Rio Amazonas. Current understanding of the distribution of P. aequatorialis, following the 1987 review of P. Hershkovitz, has it extending NW to the Andes in Ecuador, but an ongoing revision of the systematics of this genus indicates that this is not the case, and the distribution is undoubtedly smaller and possibly restricted to Peru.