<?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>S1870-34532021000100621</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2021.92.3421</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A new species of Ampelisca (Crustacea: Amphipoda: Ampeliscidae) from Santa Margarita Island, west of the Baja California Peninsula, Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[Una especie nueva de Ampelisca (Crustacea: Amphipoda: Ampeliscidae) de la isla Santa Margarita, oeste de la península de Baja California, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Winfield]]></surname>
<given-names><![CDATA[Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Salazar]]></surname>
<given-names><![CDATA[Jan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Estudios Superiores Iztacala ]]></institution>
<addr-line><![CDATA[Tlalnepantla Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Centro Interdisciplinario de Ciencias Marinas ]]></institution>
<addr-line><![CDATA[La Paz Baja California Sur]]></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=S1870-34532021000100621&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532021000100621&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532021000100621&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A new species of the genus Ampelisca Krøyer, 1842 is described and illustrated in detail. The specimens were collected from soft bottom at 15 m depth in the northern coast of Santa Margarita Island, Mexico. Ampelisca capetilloi sp. nov. is characterized by: head as long as pereonite 1-2 combined; mandible with 8 rakers; maxilla 1 palp article 2 expanded distally; gnathopod 1 propodus anterior margin with 7 distal setae; pereopod 7 basis reaching middle portion of merus, posterodistal lobe of merus large, extending one-third of carpus; pleonite 3 dorsal margin smooth; urosomite 1 slightly sinuous dorsally; telson bilobate, each lobe with 3 dorsal setae. The new species is similar to Ampelisca mexicanaBarnard, 1954 and A. pugetica Stimpson, 1864, but can be easily recognized with the identification key included herein. A checklist for Ampelisca species documented from the Eastern Tropical Pacific, including their geographic distribution, habitat, and depth range, is provided.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Una especie nueva del género Ampelisca Krøyer, 1842 es descrita e ilustrada a detalle. Los organismos fueron recolectados de fondo suave a 15 m de profundidad, en la costa norte de la isla Santa Margarita, México. Ampelisca capetilloi sp. nov. es caracterizada por: cabeza tan larga como pereonites 1-2 combinados; mandíbula con 8 setas accesorias; artejo 2 del palpo de maxila 1 expandido distalmente; gnatópodo 1 con margen anterior del propodio con 7 setas distales; base del pereópodo 7 alcanzando la mitad del mero, lóbulo posterodistal del mero muy largo, extendiéndose un tercio del carpo; pleonite 3 con margen dorsal liso; urosomita 1 ligeramente sinuoso dorsalmente; telson bilobulado, cada lóbulo con 3 setas dorsales. La especie nueva es similar a Ampelisca mexicanaBarnard, 1954 y A. pugetica Stimpson, 1864, que pueden ser reconocidas con la clave de identificación incluida. Se presenta una lista de las especies del género Ampelisca registradas para el Pacífico tropical oriental con información sobre su distribución geográfica y profundidad del hábitat.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Crustacea]]></kwd>
<kwd lng="en"><![CDATA[Malacostraca]]></kwd>
<kwd lng="en"><![CDATA[Shallow water]]></kwd>
<kwd lng="en"><![CDATA[Taxonomy]]></kwd>
<kwd lng="es"><![CDATA[Crustacea]]></kwd>
<kwd lng="es"><![CDATA[Malacostraca]]></kwd>
<kwd lng="es"><![CDATA[Aguas someras]]></kwd>
<kwd lng="es"><![CDATA[Taxonomía]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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