New records of the rare little rufous mouse opossum, <em>Marmosa lepida</em> (Thomas,1888) (Mammalia, Didelphidae) in southeastern Amazonia, Brazil

Check List 14(1): 113-119, doi: 10.15560/14.1.113

New records of the rare little rufous mouse opossum, Marmosa lepida (Thomas,1888) (Mammalia, Didelphidae) in southeastern Amazonia, Brazil

Roger Rodrigues Guimarães^‡, Ana Carolina Loss^‡, Leonora Pires Costa^‡

‡ Universidade Federal do Espírito Santo, Vitória, Brazil

Corresponding author: Roger Rodrigues Guimarães ( guimavix@gmail.com )

Academic editor: Terrence C Demos

This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Citation: Guimarães RR, Loss AC, Costa LP (2018) New records of the rare little rufous mouse opossum, Marmosa lepida (Thomas,1888) (Mammalia, Didelphidae) in southeastern Amazonia, Brazil. Check List 14(1): 113-119. https://doi.org/10.15560/14.1.113

Abstract

Here we present new records of the mouse opossum Marmosa (Stegomamosa) lepida (Thomas, 1888) collected in the recently flooded region of the Xingu River during the construction of the Belo Monte hydropower dam in the state of Pará, Brazil. This taxon is rarely captured, and it has often been misidentified as other similar genera of arboreal marsupials, such as Gracilinanus. Our specimens were identified morphologically and genetically using partial DNA of the mitochondrial cytochrome b gene. The new records increase the known distribution by about 250 km to the southeast.

Keywords

Didelphimorphia; range extension; Marmosa (Stegomarmosa); marsupial; Xingu River; Belo Monte dam