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Licensed Unlicensed Requires Authentication Published by De Gruyter November 8, 2014

The subgenus Micoureus (Didelphidae: Marmosa) in Paraguay: morphometrics, distributions, and habitat associations

Paul Smith and Robert D. Owen
From the journal Mammalia


Two species of Marmosa (Micoureus) have been documented from Paraguay. Based, in part, on a recently collected series of Marmosa constantiae, we review the morphometric relationships, distributions, and habitat associations of the two species in Paraguay. Marmosa paraguayana is documented from nine localities, all in eastern Paraguay, in the region originally covered by Upper Paraná Atlantic Forest (UPAF). Marmosa constantiae is documented from five localities, all of which are forested areas (generally gallery forest) embedded within Cerrado patches bordering UPAF, or within the Humid Chaco or Dry Chaco ecoregions. Specimens of M. constantiae from the Dry Chaco locality Parque Nacional Defensores del Chaco are morphometrically distinct from both M. paraguayana and other M. constantiae specimens and may represent an unrecognized taxon.

Corresponding author: Paul Smith, FAUNA Paraguay,; and Para La Tierra, Reserva Natural Laguna Blanca, Departamento San Pedro, Paraguay, e-mail:


We very much appreciate the thoughtful and detailed reviews and comments from Pablo Teta and Guillermo D’Elía. Thanks to Teresa Florentín, Nicolás Martínez, and Frederico Bauer, for facilitating a specimen loan from the Museo Nacional de Historia Natural del Paraguay. Karina Atkinson, Helen Pheasey, and Rebecca Smith authorized and assisted with specimen loans from Para La Tierra, Depto. San Pedro, Paraguay. Heath Garner provided information on specimens housed at the Natural Science Research Laboratory, Texas Tech University. Cesar Balbuena very generously worked with us to produce the map in Figure 4.


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Received: 2014-4-7
Accepted: 2014-10-7
Published Online: 2014-11-8
Published in Print: 2015-11-1

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