<?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>0065-1737</journal-id>
<journal-title><![CDATA[Acta zoológica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Zool. Mex]]></abbrev-journal-title>
<issn>0065-1737</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Ecología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0065-17372019000100212</article-id>
<article-id pub-id-type="doi">10.21829/azm.2019.3502078</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Leucism in Reithrodontomys Mexicanus Soederstroemi (Rodentia: Cricetidae), Quito, Ecuador]]></article-title>
<article-title xml:lang="es"><![CDATA[Leucismo en Reithrodontomys Mexicanus Soederstroemi (Rodentia: Cricetidae), Quito, Ecuador]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez Jaramillo]]></surname>
<given-names><![CDATA[Salomón M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bejarano Muñoz]]></surname>
<given-names><![CDATA[Patricia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Caiza]]></surname>
<given-names><![CDATA[Angélica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Novillo]]></surname>
<given-names><![CDATA[Marilyn]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreno Cárdenas]]></surname>
<given-names><![CDATA[Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Biodiversidad  ]]></institution>
<addr-line><![CDATA[Quito ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Groningen Faculty of Spatial Science ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Netherlands</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,University of North Carolina Wilmington Department of Biology and Marine Biology ]]></institution>
<addr-line><![CDATA[Wilmington North Carolina]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>35</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0065-17372019000100212&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0065-17372019000100212&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0065-17372019000100212&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Leucism is a hypopigmentary decrease of skin or fur coat, which is presented throughout the body or as isolated whitish patches on different parts of the body "piebald"; without altering the pigmentation of the eyes, lips, blood vessels or harm to the immune system of the specimen. The specimen was identified in the Tababela plateau located in the inter-Andean valley of Pichincha, Ecuador, site of the new Quito airport. By using glue traps used to capture lizards, one individual of Reithrodontomys mexicanus soederstroemi showing leucism, was trapped in the wild. This individual presents an irregular distribution of melanin pigments throughout it&#8217;s body. This is the first case reported with leucism in nature for this endemic species of the inter-Andean xeric valleys near Quito.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El leucismo es una disminución hipopigmentaria general, presente en la piel o pelo de todo el cuerpo de un animal, o en ocasiones, se presenta como parches blanquecinos en diferentes partes del cuerpo; sin alterar la pigmentación de los ojos, labios, vasos sanguíneos o perjudicar al sistema inmunológico del ejemplar que lo porta. En la plataforma de Tababela donde se construyó el nuevo aeropuerto de Quito localizado en el valle interandino de Pichincha, Ecuador; mediante el uso de trampas de goma usada para capturar herpetofauna, fue capturado un individuo de Reithrodontomys mexicanus soederstroemi que muestra leucismo. El individuo presenta una distribución irregular del pigmento de melanina en todo su cuerpo. Este es el primer caso de una especie silvestre endémica reportada con leucismo en un valle seco interandino cerca de Quito.]]></p></abstract>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arellano]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Genus Reithrontomys Giglioli]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Patton]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Pardiñas]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mammals of South America]]></source>
<year>2015</year>
<page-range>61-3</page-range><publisher-loc><![CDATA[Illinois, EE.UU ]]></publisher-loc>
<publisher-name><![CDATA[University of Chicago Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bauer]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sadlier]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The use of mouse glue traps to capture lizards]]></article-title>
<source><![CDATA[Herpetological Review]]></source>
<year>1992</year>
<volume>23</volume>
<page-range>112-3</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beermann]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Orlow]]></surname>
<given-names><![CDATA[S. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Lamoreux]]></surname>
<given-names><![CDATA[M. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Tyr (albino) locus of the laboratory mouse]]></article-title>
<source><![CDATA[Mammalian Genome]]></source>
<year>2004</year>
<volume>15</volume>
<page-range>749-58</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blomberg]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Shine]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reptiles]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Sutherland]]></surname>
<given-names><![CDATA[W. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ecological Census Techniques]]></source>
<year>2006</year>
<page-range>297-307</page-range><publisher-loc><![CDATA[Cambridge, UK ]]></publisher-loc>
<publisher-name><![CDATA[Cambridge University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brito]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Valdivieso-Bermeo]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[First records of leucism in eight species of small mammals (Mammalia: Rodentia)]]></article-title>
<source><![CDATA[Therya]]></source>
<year>2016</year>
<volume>7</volume>
<page-range>483-9</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Camargo]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Rios]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Cornejo-Latorre]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez-Castañeda]]></surname>
<given-names><![CDATA[S. T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[First Record of Leucism in the Genus Peromyscus (Mammalia: Rodentia)]]></article-title>
<source><![CDATA[Western North American Naturalist]]></source>
<year>2014</year>
<volume>74</volume>
<page-range>366-8</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chávez]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Diferenciación morfológica y genética de las poblaciones del ratón cosechador mexicano (Reithrodontomys mexicanus Seassure, 1860 Rodentica: Cricetidae) en los Andes del Ecuador]]></source>
<year>2012</year>
<publisher-name><![CDATA[Pontificia Universidad Católica del Ecuador]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Egoscue]]></surname>
<given-names><![CDATA[H. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Albinism in the western harvest mouse]]></article-title>
<source><![CDATA[Journal of Mammalogy]]></source>
<year>1958</year>
<volume>39</volume>
<page-range>306</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hershkovitz]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The South American harvest mice of genus Reithrodontomys]]></article-title>
<source><![CDATA[Occasional Papers of the Museum of Zoology]]></source>
<year>1941</year>
<volume>411</volume>
<page-range>1-7</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martínez-Coronel]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Verona-Trejo]]></surname>
<given-names><![CDATA[M. I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Albinismo platinado en Liomys pictus (Mammalia: Heteromyidae)]]></article-title>
<source><![CDATA[Therya]]></source>
<year>2013</year>
<volume>4</volume>
<page-range>641-5</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Metallinos]]></surname>
<given-names><![CDATA[D. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Oppenheimer]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rinchik]]></surname>
<given-names><![CDATA[E. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Russell]]></surname>
<given-names><![CDATA[L. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Dietrich]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Tilghman]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fine Structure Mapping and Deletion Analysis of the Murine]]></article-title>
<source><![CDATA[Genetics]]></source>
<year>1994</year>
<volume>136</volume>
<page-range>217-23</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<collab>Ministerio del Ambiente del Ecuador (MAE)</collab>
<source><![CDATA[Sistema de Clasificacion de los Ecosistemas del Ecuador Continental]]></source>
<year>2013</year>
<publisher-loc><![CDATA[Quito, Ecuador ]]></publisher-loc>
<publisher-name><![CDATA[Subsecretaria de Patrimonio Natural]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Roman]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Brito]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Pardiñas]]></surname>
<given-names><![CDATA[U. J. F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The taxonomic status of Copemyodon ecuadorensis (Rodentia:Cricetidae), supposedly extinct muroid from Ecuadorean Quaternary]]></article-title>
<source><![CDATA[Mammalia]]></source>
<year>2017</year>
<volume>82</volume>
<page-range>89-92</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nedyalkov]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Koshev]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Raykov]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Bardarov]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Color variation of small mammals&#8217;s (Mammalia: Rodentia and Insectivora) coats from Bulgaria]]></article-title>
<source><![CDATA[North-Western Journal of Zoology]]></source>
<year>2014</year>
<volume>10</volume>
<page-range>314-7</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acromelanic albinism in mammals]]></article-title>
<source><![CDATA[Genetica]]></source>
<year>1973</year>
<volume>44</volume>
<page-range>454-8</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Racines-Márquez]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Brito]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A short review and worldwide list of wild albino rodents with the first report of albinism in Coendou rufescens (Rodentia: Erethizontidae)]]></article-title>
<source><![CDATA[Mammalia]]></source>
<year>2018</year>
<volume>82</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1&#8722;7</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Slominski]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tobin]]></surname>
<given-names><![CDATA[D. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Shibahara]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Wortsman]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Melanin Pigmentation in Mammalian Skin and Its Hormonal Regulation]]></article-title>
<source><![CDATA[Physiological Reviews]]></source>
<year>2004</year>
<volume>84</volume>
<page-range>1155-228</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Treitler]]></surname>
<given-names><![CDATA[J. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Baucells]]></surname>
<given-names><![CDATA[A. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Gomez-Farias]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Tenacol]]></surname>
<given-names><![CDATA[J. F. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rocha]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[First record of leucist piebald Phyllostomus discolor (Chiroptera: Phyllostomidae)]]></article-title>
<source><![CDATA[Chiroptera Neotropical]]></source>
<year>2013</year>
<volume>19</volume>
<page-range>1179-81</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
