CONICET | Buscador de Institutos y Recursos Humanos

Juliomys pictipes, the type species of this sylvan cricetid genus, remains poorly known. In Argentina, country where thetype locality is placed, it is only known from the holotype. Here we report the first new Argentinean individuals, after agap of 80 years; the new specimens -three in total- include one topotype and allow adding two new recording localitiesfor the species. In addition, we refined the geographical location of their type locality and described in detail several morphologicaltraits of this peculiar mouse, producing an emended diagnosis of both the type species and the genus.Molecular data provided in this paper reinforce the identity of J. pictipes and the reference of the southern Brazilian populationsof this genus to the type species.