<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-3364</journal-id>
<journal-title><![CDATA[Therya]]></journal-title>
<abbrev-journal-title><![CDATA[Therya]]></abbrev-journal-title>
<issn>2007-3364</issn>
<publisher>
<publisher-name><![CDATA[Asociación Mexicana de Mastozoología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-33642017000100067</article-id>
<article-id pub-id-type="doi">10.12933/therya-17-457</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The first record of Calomys hummelincki (Rodentia: Sigmodontinae) from the Lavrados of northern Brazil]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Brandão]]></surname>
<given-names><![CDATA[Marcus Vinicius]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salgueiro]]></surname>
<given-names><![CDATA[Yolanda Oliveira]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salazar-Bravo]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Federal de São Carlos Campus Sorocaba Programa de Pós-Graduação em Diversidade Biológica e Conservação]]></institution>
<addr-line><![CDATA[ Sao Paulo]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Texas Tech University Department of Biological Sciences ]]></institution>
<addr-line><![CDATA[ Texas]]></addr-line>
<country>USA</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2017</year>
</pub-date>
<volume>8</volume>
<numero>1</numero>
<fpage>67</fpage>
<lpage>70</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-33642017000100067&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-33642017000100067&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-33642017000100067&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The South American genus Calomys exhibits a disjunct distribution with most species inhabiting grasslands, savannas, and forest edges from ca. latitude 8° S in the highlands of Peru and the Caatinga of Brazil to ca. latitude 16° S in central Bolivia, and from there south into Argentine Patagonia. Only a single species (Calomys hummelincki) occurs in open habitats in northern South America. We report the first known specimen of Calomys hummelincki for Brazil. The specimen is deposited in the mammal collection of Museu de Zoologia da Universidade de São Paulo, São Paulo. It is a young adult female with two embryos collected on 13 March 1989 by C. M. Carvalho at Fazenda Salvamento, Roraima state, during a herpetofaunal survey. The specimen shares qualitative and quantitative characters with specimens from Venezuela and Curaçao, but also differs substantially in others. The record presented herein extends the known range of the species about 630 km southeast-ward from the nearest previous record (in Venezuela, Estado Bolívar, Sipao). This new record was obtained in a locality representative of the savannas of the Rio Branco - Rupununi region that supports a poorly known, but distinctive mammalian fauna. This entire eco-region represents a piece of the biogeographic puzzle resulting from the climate-dependent vegetation shifts that dominated the Quaternary of South America. This new record highlights the need to investigate and protect the biodiversity of the Rio Branco-Rupununi savannas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El género Sudamericano Calomys presenta una distribución discontinua, con la mayoría de sus especies presentes en los pastizales, sabanas y bordes del bosque desde 8 °S latitud S en el altiplano de Perú y la Caatinga de Brasil hasta lat 16 °S en el centro de Bolivia y desde allí hacia el sur, hacia la Patagonia Argentina. En este trabajo presentamos el primer registro de Calomys hummelincki para Brasil, basado en un espécimen que se encuentra depositado en la colección de mamíferos del Museo de Zoología de la Universidade de São Paulo, São Paulo. Específicamente, se trata de una hembra adulta joven con dos embriones y que fue atrapada el 13 de marzo de 1989 por C. M. Carvalho en la Fazenda Salvamento, en el estado de Roraima, durante un levantamiento de herpetofauna. Este espécimen comparte caracteres métricos y cualitativos con individuos de la misma especie y de poblaciones en Venezuela y Curaçao, aunque al mismo tiempo, difiere substancialmente en otros. El registro presentado en este trabajo extiende en alrededor de 630 km SE la distribución de la especie desde el registro más cercano (Venezuela, Estado Bolívar, Sipao). El registro aquí reportado proviene del sistema de sabanas denominadas del Río Branco-Rupununi, un ecosistema que contiene una fauna de mamíferos única y poco conocida. Este ecosistema representa una pieza importante en el rompecabezas biogeográfico que resultó de los cambios de vegetación que dominaron el Cuaternario de Sudamérica. Se destaca la necesidad de estudiar y proteger la biodiversidad de las sabanas Rio Branco-Rupununi.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Cerrado enclaves]]></kwd>
<kwd lng="en"><![CDATA[Hummelinck's vesper mouse]]></kwd>
<kwd lng="en"><![CDATA[Neotropical savannas]]></kwd>
<kwd lng="en"><![CDATA[range extension]]></kwd>
<kwd lng="es"><![CDATA[Cerrado enclaves]]></kwd>
<kwd lng="es"><![CDATA[Hummelinck's vesper mouse]]></kwd>
<kwd lng="es"><![CDATA[Neotropical savannas]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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