<?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>S1870-34532023000100421</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2023.94.5222</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A new species of Aplectana (Nematoda: Cosmocercidae) in Amphisbaena darwinii (Squamata: Amphisbaenidae) from Argentina]]></article-title>
<article-title xml:lang="es"><![CDATA[Nueva especie de Aplectana (Nematoda: Cosmocercidae) en Amphisbaena darwinii (Squamata: Amphisbaenidae) de Argentina]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramallo]]></surname>
<given-names><![CDATA[Geraldine]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Goldberg]]></surname>
<given-names><![CDATA[Stephen R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[Ana Lía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Stazzonelli]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Fundación Miguel Lillo  Instituto de Invertebrados]]></institution>
<addr-line><![CDATA[San Miguel de Tucumán ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Whittier College Department of Biology ]]></institution>
<addr-line><![CDATA[ CA]]></addr-line>
<country>USA</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de Tucumán Facultad de Ciencias Naturales Instituto Miguel Lillo]]></institution>
<addr-line><![CDATA[San Miguel de Tucumán ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>94</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532023000100421&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532023000100421&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532023000100421&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In the present study, we describe and illustrate Aplectana nananae n. sp. from the large intestine of Amphisbaena darwinii. Aplectana nananae n. sp. is the second species described in Argentinian amphisbaenian hosts and the 60th species assigned to the genus. This species differs from its congeners by a set of unique characters in males: the presence of 1 unpaired preanal papilla and gubernaculum, the papillae pattern (8+1:2:2) and total number (24+1), very conspicuous and prominent excretory pore, located anterior to the esophageal bulb and the size of spicules (60-70 &#956;m).]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En el presente estudio, se describe e ilustra a Aplectana nananae n. sp. localizada en el intestino grueso de Amphisbaena darwinii. Aplectana nananae n. sp. es la segunda especie descrita en anfisbenas argentinas y la 60ava especie válida del género. Esta especie se diferencia de las otras por las siguientes características de los machos: la presencia de una papila impar preanal y gubernaculum, el patrón de papilas caudales (8+1:2:2) y número total (24+1), el poro excretor que es muy conspicuo y prominente, situado anterior al bulbo esofágico y por la longitud de las espículas (60-70 &#956;m).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Aplectana nananae n. sp.]]></kwd>
<kwd lng="en"><![CDATA[Nematoda]]></kwd>
<kwd lng="en"><![CDATA[Squamata]]></kwd>
<kwd lng="en"><![CDATA[Argentina]]></kwd>
<kwd lng="en"><![CDATA[Amphisbaena]]></kwd>
<kwd lng="es"><![CDATA[Aplectana nananae n. sp.]]></kwd>
<kwd lng="es"><![CDATA[Nematoda]]></kwd>
<kwd lng="es"><![CDATA[Squamata]]></kwd>
<kwd lng="es"><![CDATA[Argentina]]></kwd>
<kwd lng="es"><![CDATA[Anfisbenas]]></kwd>
</kwd-group>
</article-meta>
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