<?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>S1870-34532015000300629</article-id>
<article-id pub-id-type="doi">10.1016/j.rmb.2015.03.001</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A new species of Pinnixa (Crustacea: Brachyura: Pinnotheridae) from Mazatlan, Sinaloa, Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[Una nueva especie de Pinnixa (Crustacea: Brachyura: Pinnotheridae) en Mazatlán, Sinaloa, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salgado-Barragán]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Ciencias del Mar y Limnología Laboratorio de Invertebrados Bentónicos]]></institution>
<addr-line><![CDATA[Mazatlán Sinaloa]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2015</year>
</pub-date>
<volume>86</volume>
<numero>3</numero>
<fpage>629</fpage>
<lpage>633</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532015000300629&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532015000300629&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532015000300629&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[A new pinnotherid crab, Pinnixa hendrickxi n. sp., is described from Isla de la Piedra, Mazatlán, Sinaloa, Mexico. The new species can be distinguished from most species of Pinnixa of the Eastern Pacific because males have an abdomen narrowed medially and widened distally. However, due to this characteristic, P. hendrickxi resembles P. darwiniGarth, 1960, P. plectrophorosGlassell, 1935, P. transversalisMilne-Edwards &amp; Lucas, 1842, and P. bahamondeiGarth, 1957 from the eastern Pacific and P. faxoniRathbun, 1918, from the western Atlantic. Pinnixa hendrickxi can easily be distinguished from P. plectrophoros and P. transversalis by the absence of spines on third and fourth legs. On the other hand, the new species can be separated from P. transversalis , P. bahamondei , and P. faxoni by the absence of dorsal ridges on the carapace. It can be distinguished from P. darwini by the fingers of the chelae (which, when closed, leave a gap in P. darwini , but close almost completely in the new species), the exopod of the third maxiliped with a non-segmented flagellum in the new species, and first pleopod with slender terminal process and without bulbous subterminal swelling in the new species.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se describe a Pinnixa hendrickxi (P. hendrickxi) , una nueva especie de cangrejo pinotérido de Isla de la Piedra, Mazatlán, Sinaloa, México. La nueva especie puede distinguirse de la mayoría de las especies de Pinnixa del Pacífico oriental porque los machos poseen un abdomen angosto en su parte media y ensanchado distalmente. Por esta característica, P. hendrickxi tiene mayor similitud con P. darwiniGarth, 1960, P. plectrophorosGlassell, 1935, P. transversalisMilne-Edwards y Lucas, 1842 y P. bahamondeiGarth, 1957 del Pacífico oriental y con P. faxoniRathbun, 1918, del Atlántico occidental. Pinnixa hendrickxi puede distinguirse fácilmente de P. plectrophoros y P. transversalis por carecer de espinas en las patas 3 y 4, y se diferencia de P. transversalis , P. bahamondei y P. faxoni por no presentar crestas o hileras de gránulos en el dorso del caparazón. La nueva especie también puede distinguirse de P. darwini porque los dedos de las quelas no forman una abertura interna amplia, el flagelo del exopodito del tercer maxilípedo es más corto y simple en lugar de esbelto y bisegmentado y porque los machos tienen un primer pleópodo con la porción terminal más esbelta y no bulboso en la porción subterminal.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Brachyura]]></kwd>
<kwd lng="en"><![CDATA[Pea crabs]]></kwd>
<kwd lng="en"><![CDATA[New species]]></kwd>
<kwd lng="en"><![CDATA[Taxonomy]]></kwd>
<kwd lng="en"><![CDATA[Mexican Pacific]]></kwd>
<kwd lng="es"><![CDATA[Brachyura]]></kwd>
<kwd lng="es"><![CDATA[Cangrejos chícharo]]></kwd>
<kwd lng="es"><![CDATA[Nueva especie]]></kwd>
<kwd lng="es"><![CDATA[Taxonomía]]></kwd>
<kwd lng="es"><![CDATA[Pacífico mexicano]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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