<?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>S1870-34532016000300903</article-id>
<article-id pub-id-type="doi">10.1016/j.rmb.2016.06.011</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A new species of Characithecium (Monogenea: Dactylogyridae) from external surface and gills of two species of Astyanax (Ostariophysi: Characidae) in southern Brazil]]></article-title>
<article-title xml:lang="es"><![CDATA[Especie nueva de Characithecium (Monogenea: Dactylogyridae) de superficie externa y branquias de dos especies de Astyanax (Ostariophysi: Characidae) en el sur de Brasil]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gallas]]></surname>
<given-names><![CDATA[Moisés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calegaro-Marques]]></surname>
<given-names><![CDATA[Cláudia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Amato]]></surname>
<given-names><![CDATA[Suzana B.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Federal do Rio Grande do Sul Instituto de Biociências Departamento de Zoologia]]></institution>
<addr-line><![CDATA[Porto Alegre Rio Grande do Sul]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<volume>87</volume>
<numero>3</numero>
<fpage>903</fpage>
<lpage>907</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532016000300903&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532016000300903&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532016000300903&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: A new species of Characithecium, a genus of monogenean parasites of Neotropical characids, is described from specimens collected on the body surface and gills of Astyanax aff. fasciatus and Astyanax jacuhiensis from Lake Guaíba, State of Rio Grande do Sul, Brazil. The new species is similar to Characithecium costaricensis, but differs by having the haptor separated from the body by a long peduncle, and by having an accessory piece composed of 2 subunits in the male copulatory complex - 1 ventral pincer-shaped at the distal end, and 1 dorsal with an expanded rod-shaped proximal end and the distal end containing 3 elongated projections-, and the dorsal bar usually presenting a small median elevation in the anterior margin. This study increases the number of species of Characitecium to 7 and expands our knowledge on the diversity of monogenean parasites of characids.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Una especie nueva de Characithecium, género que comprende especies de parásitos monogenéticos de carácidos neotropicales, se describe a partir de especímenes colectados de la superficie corporal y las branquias de los peces Astyanax aff. fasciatus y Astyanax jacuhiensis en el lago Guaíba, estado de Rio Grande do Sul, Brasil. Esta especie nueva es similar a Characithecium costaricensis pero se diferencia por tener el haptor separado del cuerpo por un pedúnculo largo y por presentar una estructura accesoria compuesta por 2 subunidades en el complejo copulador masculino -una ventral con forma de pinza en el extremo posterior y otra dorsal con forma de barra en el extremo anterior y posterior, la cual tiene 3 prolongaciones alargadas-. Además, la barra dorsal usualmente presenta una pequeña elevación media en el margen anterior. Este estudio aumenta el número de especies de Characitecium a 7 y mejora nuestro conocimiento sobre la diversidad de parásitos monogenéticos en carácidos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Characids]]></kwd>
<kwd lng="en"><![CDATA[Dactylogyrid]]></kwd>
<kwd lng="en"><![CDATA[Ectoparasites]]></kwd>
<kwd lng="en"><![CDATA[Lake Guaíba]]></kwd>
<kwd lng="en"><![CDATA[Monogeneans]]></kwd>
<kwd lng="es"><![CDATA[Carácidos]]></kwd>
<kwd lng="es"><![CDATA[Dactylogyridae]]></kwd>
<kwd lng="es"><![CDATA[Ectoparásitos]]></kwd>
<kwd lng="es"><![CDATA[Lago Guaíba]]></kwd>
<kwd lng="es"><![CDATA[Monogéneos]]></kwd>
</kwd-group>
</article-meta>
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<article-title xml:lang=""><![CDATA[Characithecium (Monogenoidea: Dactylogyridae) parasitic on the Neotropical fish Oligosarcus jenynsii (Teleostei: Characidae) from the Pampasic region, Argentina, with the emendation of the genus]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rossin]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Timi]]></surname>
<given-names><![CDATA[J.T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Zootaxa]]></source>
<year>2014</year>
<volume>3893</volume>
<page-range>382-96</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
