Priocharax conwayi sp. nov. A Live paratype, MZUSP 129746, female, not measured, Brazil, Pará State, Santarém municipality: Rio Mentaí, in vicinity of settlement Boca do Mentaí, tributary of Rio Arapiuns, Rio Tapajós drainage. B Paratype, MZUSP 129746, male, 10.7 mm SL, collected with holotype. C Holotype, MZUSP 129745, female, 12.2 mm SL, Brazil, Pará State, Santarém municipality: Rio Mentaí, in vicinity of settlement Boca do Mentaí, tributary of Rio Arapiuns, Rio Tapajós drainage. D Paratype, same specimen as (B).