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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">102</journal-id>
      <journal-id journal-id-type="index">urn:lsid:arphahub.com:pub:73abe0ce-d97c-5d7c-bee5-b8e6e6fe6a17</journal-id>
      <journal-title-group>
        <journal-title xml:lang="en">ARPHA Preprints</journal-title>
        <abbrev-journal-title xml:lang="en">preprints</abbrev-journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name>Pensoft Publishers</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.3897/arphapreprints.e103470</article-id>
      <article-id pub-id-type="publisher-id">103470</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Research Article</subject>
        </subj-group>
        <subj-group subj-group-type="biological_taxon">
          <subject>Platyhelminthes</subject>
          <subject>Tricladida</subject>
          <subject>Turbellaria</subject>
        </subj-group>
        <subj-group subj-group-type="scientific_subject">
          <subject>Invertebrates</subject>
          <subject>Physiology</subject>
          <subject>Reproductive Biology</subject>
          <subject>Zoology &amp; Animal Biology</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Regeneration in a Neotropical land planarian (Platyhelminthes, Tricladida)</article-title>
      </title-group>
      <contrib-group content-type="authors">
        <contrib contrib-type="author" corresp="yes">
          <name name-style="western">
            <surname>Boll</surname>
            <given-names>Piter</given-names>
          </name>
          <email xlink:type="simple">piterkeo@gmail.com</email>
          <uri content-type="orcid">https://orcid.org/0000-0002-3029-0841</uri>
          <xref ref-type="aff" rid="A1">1</xref>
        </contrib>
        <contrib contrib-type="author" corresp="no">
          <name name-style="western">
            <surname>Rossi</surname>
            <given-names>Ilana</given-names>
          </name>
          <xref ref-type="aff" rid="A2">2</xref>
        </contrib>
        <contrib contrib-type="author" corresp="no">
          <name name-style="western">
            <surname>Amaral</surname>
            <given-names>Silvana Vargas do</given-names>
          </name>
          <uri content-type="orcid">https://orcid.org/0000-0001-9695-1393</uri>
          <xref ref-type="aff" rid="A1">1</xref>
        </contrib>
        <contrib contrib-type="author" corresp="no">
          <name name-style="western">
            <surname>Leal-Zanchet</surname>
            <given-names>Ana Maria</given-names>
          </name>
          <uri content-type="orcid">https://orcid.org/0000-0003-3927-5629</uri>
          <xref ref-type="aff" rid="A1">1</xref>
        </contrib>
      </contrib-group>
      <aff id="A1">
        <label>1</label>
        <addr-line content-type="verbatim">Universidade do Vale do Rio dos Sinos, São Leopoldo, Brazil</addr-line>
        <institution>Universidade do Vale do Rio dos Sinos</institution>
        <addr-line content-type="city">São Leopoldo</addr-line>
        <country>Brazil</country>
      </aff>
      <aff id="A2">
        <label>2</label>
        <addr-line content-type="verbatim">Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Vacaria, Brazil</addr-line>
        <institution>Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul</institution>
        <addr-line content-type="city">Vacaria</addr-line>
        <country>Brazil</country>
      </aff>
      <author-notes>
        <fn fn-type="corresp">
          <p>Corresponding author: Piter Boll (<email xlink:type="simple">piterkeo@gmail.com</email>).</p>
        </fn>
        <fn fn-type="edited-by">
          <p>Academic editor: </p>
        </fn>
      </author-notes>
      <pub-date pub-type="collection">
        <year>2023</year>
      </pub-date>
      <pub-date pub-type="epub">
        <day>20</day>
        <month>03</month>
        <year>2023</year>
      </pub-date>
      <volume>4</volume>
      <uri content-type="arpha" xlink:href="http://openbiodiv.net/1BA9F205-95AF-5573-A3E2-DF12FF09032D">1BA9F205-95AF-5573-A3E2-DF12FF09032D</uri>
      <history>
        <date date-type="received">
          <day>13</day>
          <month>03</month>
          <year>2023</year>
        </date>
        <date date-type="accepted">
          <day>13</day>
          <month>03</month>
          <year>2023</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>Piter Boll, Ilana Rossi, Silvana Vargas do Amaral, Ana Maria Leal-Zanchet</copyright-statement>
        <license license-type="creative-commons-attribution" xlink:href="http://creativecommons.org/licenses/by/4.0/" xlink:type="simple">
          <license-p>This is an open access preprint distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p>
        </license>
      </permissions>
      <abstract>
        <label>Abstract</label>
        <p>Planarians are known for their ability to regenerate missing body parts. However, little is known about the regeneration ability of land planarians, especially regarding Neotropical species. Herein, we investigated the regeneration in the Neotropical land planarian <i>Luteostriata abundans</i>. Specimens were cut in two at different points along the body and monitored for 50 days. Larger and anterior pieces survived more than smaller posterior pieces. Anterior pieces that retained the pharynx continued to feed normally as intact animals, while posterior pieces that retained the pharynx lost its function temporarily. The growth rate was similar among all pieces across 50 days. Anterior mouthless pieces regenerated the pharynx and mouth significantly faster than posterior mouthless pieces. After 50 days, the relative position of the mouth along the body reached values close to intact animals in all regenerating pieces. In general, anterior pieces showed higher survival and regenerated faster than posterior fragments, which agrees with observations with other planarian species. However, surviving posterior pieces were able to retain the proportions of intact animals as well. Overall, our results suggest that <i>L. abundans</i> has a good regenerative capacity similar to many freshwater planarians.</p>
      </abstract>
    </article-meta>
  </front>
</article>
