<?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>0034-7744</journal-id>
<journal-title><![CDATA[Revista de Biología Tropical]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. biol. trop]]></abbrev-journal-title>
<issn>0034-7744</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-77442021000500375</article-id>
<article-id pub-id-type="doi">10.15517/rbt.v69isuppl.1.46369</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Nuevos registros de la familia Cucumariidae (Holothuroidea: Dendrochirotida) en el Paci&#769;fico mexicano]]></article-title>
<article-title xml:lang="en"><![CDATA[New records of the family Cucumariidae (Holothuroidea: Dendrochirotida) for the Mexican Pacific]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sa&#769;nchez-Alonzo]]></surname>
<given-names><![CDATA[Daniel-M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soli&#769;s-Mari&#769;n]]></surname>
<given-names><![CDATA[Francisco-A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Conejeros-Vargas]]></surname>
<given-names><![CDATA[Carlos-A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Auto&#769;noma de Me&#769;xico  ]]></institution>
<addr-line><![CDATA[ Ciudad de Me&#769;xico]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México  ]]></institution>
<addr-line><![CDATA[ Ciudad de Me&#769;xico]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México  ]]></institution>
<addr-line><![CDATA[ Ciudad de Me&#769;xico]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<volume>69</volume>
<fpage>375</fpage>
<lpage>386</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0034-77442021000500375&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0034-77442021000500375&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0034-77442021000500375&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  Los cucumáridos son un grupo cosmopolita de pepinos de mar que habitan en sedimentos rocosos-arenosos, desde la zona intermareal hasta la zona abisal.  Objetivo:  Presentar nuevos registros para el Pacífico mexicano.  Métodos:  Se utilizó estereoscopio y microscopía electrónica de barrido para mostrar la morfología externa e interna de especímenes de la colección de la Universidad Nacional Autónoma de México.  Resultados:  Presentamos una sinopsis taxonómica de cucumáridos en el Pacífico mexicano y revisamos su taxonomía en las espículas. Se confirma la identidad taxonómica de Pseudocnus curatus, Pseudocnus dubiosus y Pseudocnus lubricus y se descarta la presencia de Trachythyone peruana.  Conclusiones:  Se presentan cuatro nuevos registros para el Pacífico mexicano: Leptopentacta nina, Pseudocnus curatus, Pseudocnus dubiosus y Pseudocnus lubricus.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Cucumarids are a cosmopolitan group of sea cucumbers that inhabit rocky-sandy sediments, from the intertidal zone to the hadal zone.  Objective:  To present new records for the Mexican Pacific.  Methods:  We applied stereoscope and scanning electron microscopy to external and internal morphology of specimens in the collection of the National Autonomous University, Mexico.  Results: We present a taxonomic synopsis of cucumarids in the Mexican Pacific and review their taxonomy on the ossicles. The taxonomic identity of Pseudocnus curatus, Pseudocnus dubiosus and Pseudocnus lubricus is confirmed, and the presence of Trachythyone peruana is ruled out.  Conclusions:  Four new records are presented for the Mexican Pacific: Leptopentacta nina, Pseudocnus curatus, Pseudocnus dubiosus and Pseudocnus lubricus.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[sea cucumbers]]></kwd>
<kwd lng="en"><![CDATA[Mexican Pacific]]></kwd>
<kwd lng="en"><![CDATA[biodiversity]]></kwd>
<kwd lng="en"><![CDATA[taxonomy]]></kwd>
<kwd lng="en"><![CDATA[morphology]]></kwd>
<kwd lng="es"><![CDATA[pepinos de mar]]></kwd>
<kwd lng="es"><![CDATA[Pacífico mexicano]]></kwd>
<kwd lng="es"><![CDATA[biodiversidad]]></kwd>
<kwd lng="es"><![CDATA[taxonomía]]></kwd>
<kwd lng="es"><![CDATA[morfología]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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