The species Pseudoloris reguanti (Microchoerinae, Omomyidae, Primates) was described by Miquel Crusafont-Pairó in 1967, based on a single lower molar from the Late Eocene Spanish site Sant Cugat de Gavadons. Sometime later, the holotype and unique material of P. reguanti was lost from the collections of the Institut Català de Paleontologia Miquel Crusafont. Recently, several isolated teeth of Pseudoloris from the type locality have been found in the collections of the Naturhistorisches Museum Basel, Switzerland, including two lower molars. According to the description of Crusafont-Pairó, one of the specimens may correspond to the holotype, but this statement cannot be proved due to the lack of illustrations accompanying the original definition of the species. In this work we designate this specimen as a neotype, also providing proper descriptions, measurements and illustrations of the new material and an emended diagnosis for the species.