<?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>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532021000100640</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2021.92.3833</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[New species of crayfish of the genus Procambarus, and notes on Procambarus pilosimanus (Decapoda: Cambaridae) from Chiapas, Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[Especie nueva de acocil del género Procambarus y notas sobre Procambarus pilosimanus (Decapoda: Cambaridae) de Chiapas, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villalobos]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Biología ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>92</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532021000100640&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532021000100640&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532021000100640&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A new species of crayfish is described from the Cave of Sótano de La Lucha, in the border between the Mexican states of Chiapas and Oaxaca. The new species is completely adapted to the cave environment with reduced eyes lacking cornea and visual pigments, an almost unpigmented body and elongated appendages. We also report on crayfish populations from the &#8220;Lagunas de Montebello&#8221; area, which fit well the description of Procambarus pilosimanus (Ortmann, 1906), a heretofore problematic species in southern Mexico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se describe una especie nueva de acocil del Sótano de La Lucha, en la frontera entre los estados mexicanos de Chiapas y Oaxaca. La especie nueva está completamente adaptada al ambiente de cueva con ojos reducidos sin córnea ni pigmentos visuales, un cuerpo casi despigmentado y apéndices alargados. También reportamos sobre poblaciones de acociles del área de las Lagunas de Montebello, que coinciden bien con la descripción de Procambarus pilosimanus (Ortmann, 1906), que es hasta ahora una especie problemática del sur de México.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Stygobitic crayfish]]></kwd>
<kwd lng="en"><![CDATA[Sótano de La Lucha]]></kwd>
<kwd lng="en"><![CDATA[Lagunas de Montebello]]></kwd>
<kwd lng="en"><![CDATA[Chiapas]]></kwd>
<kwd lng="es"><![CDATA[Acocil estigobítico]]></kwd>
<kwd lng="es"><![CDATA[Sótano de La Lucha]]></kwd>
<kwd lng="es"><![CDATA[Lagunas de Montebello]]></kwd>
<kwd lng="es"><![CDATA[Chiapas]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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