First record of Glyphonycteris daviesi to the state of Roraima in Brazil

Abstract

The genus Glyphonycteris comprises 3 species that inhabit lowlands and forested mountains of Central and South America.  Of the 3 species that occur in Brazil, Glyphonycteris daviesi is reported in humid forests but little is known about its distribution limits.  We started from a voucher specimen deposited in the Mammals Collection of the Department of Vertebrates at the National Museum, Rio de Janeiro, Brazil.  We analyzed the external, cranial, and dental features that have been reported as diagnostic in previous studies and documented georeferenced occurrences of the species in Brazil.  We verified that the specimen was an individual of G. daviesi.  Therefore, we describe the first record of this species for the state of Roraima, at approximately 407 km northwest of the previous closest known record in Manaus.  This collection belongs to a male, within the potential distribution for the species according to the IUCN.  The landscape from which the collection comes is mainly composed of campinaranas (Amazonian ecosystems associated with poor and sandy soils with periodic flooding), humid forests, and floodplains.  We confirm that G. daviesi occurs in regions of conserved tropical humid forests, corroborating other reports, and in variable vegetation types, from fields to forested areas.