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<document ID-DOI="10.11646/zootaxa.5263.1.7" ID-ISSN="1175-5326" ID-Zenodo-Dep="7797908" ID-ZooBank="D8DC9A40-3CDD-4B82-85B9-620F11B35F0A" IM.illustrations_approvedBy="juliana" IM.tables_approvedBy="juliana" IM.taxonomicNames_approvedBy="juliana" IM.treatments_approvedBy="juliana" approvalRequired="1" approvalRequired_for_treatments="1" checkinTime="1680599153946" checkinUser="plazi" docAuthor="Ailán-Choke, Lorena G., Arredondo, Nathalia J. &amp; Davies, Dora" docDate="2023" docId="3133879B7414EA1FFF7BF9EDE7B2FC2B" docLanguage="en" docName="zootaxa.5263.1.7.pdf" docOrigin="Zootaxa 5263 (1)" docSource="http://dx.doi.org/10.1094/PDIS-04-22-0755-PDN" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Hedruris anguila Ailán-Choke &amp; Arredondo &amp; Davies 2023, sp. nov." docType="treatment" docVersion="3" lastPageNumber="127" masterDocId="CD0AFFE37415EA1AFFECFF83E34BFFAA" masterDocTitle="A new species of Hedruris Nitzsch, 1821 (Nematoda: Hedruridae) parasitic in eel Synbranchus marmoratus Bloch (Synbranchiformes: Synbranchidae) from Argentina, Neotropical Region" masterLastPageNumber="134" masterPageNumber="122" pageNumber="123" updateTime="1680782107862" updateUser="juliana" zenodo-license-document="CLOSED">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>A new species of Hedruris Nitzsch, 1821 (Nematoda: Hedruridae) parasitic in eel Synbranchus marmoratus Bloch (Synbranchiformes: Synbranchidae) from Argentina, Neotropical Region</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Ailán-Choke, Lorena G.</mods:namePart>
<mods:affiliation>Instituto para el Estudio de la Biodiversidad de Invertebrados, Facultad de Ciencias Naturales, Universidad Nacional de Salta, Av. Bolivia 5150, (4400) Salta, Argentina; &amp; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Arredondo, Nathalia J.</mods:namePart>
<mods:affiliation>Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA, CONICET-UBA), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina; &amp; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Davies, Dora</mods:namePart>
<mods:affiliation>Instituto para el Estudio de la Biodiversidad de Invertebrados, Facultad de Ciencias Naturales, Universidad Nacional de Salta, Av. Bolivia 5150, (4400) Salta, Argentina;</mods:affiliation>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>Zootaxa</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2023</mods:date>
<mods:detail type="pubDate">
<mods:number>2023-04-04</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>5263</mods:number>
</mods:detail>
<mods:detail type="issue">
<mods:number>1</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>122</mods:start>
<mods:end>134</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>http://dx.doi.org/10.1094/PDIS-04-22-0755-PDN</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">10.11646/zootaxa.5263.1.7</mods:identifier>
<mods:identifier type="ISSN">1175-5326</mods:identifier>
<mods:identifier type="Zenodo-Dep">7797908</mods:identifier>
<mods:identifier type="ZooBank">D8DC9A40-3CDD-4B82-85B9-620F11B35F0A</mods:identifier>
</mods:mods>
<treatment LSID="urn:lsid:plazi:treatment:3133879B7414EA1FFF7BF9EDE7B2FC2B" httpUri="http://treatment.plazi.org/id/3133879B7414EA1FFF7BF9EDE7B2FC2B" lastPageId="5" lastPageNumber="127" pageId="1" pageNumber="123">
<subSubSection box="[151,462,1646,1673]" pageId="1" pageNumber="123" type="nomenclature">
<paragraph blockId="1.[151,462,1646,1673]" box="[151,462,1646,1673]" pageId="1" pageNumber="123">
<heading bold="true" box="[151,462,1646,1673]" fontSize="11" level="1" pageId="1" pageNumber="123" reason="1">
<emphasis bold="true" box="[151,462,1646,1673]" pageId="1" pageNumber="123">
<taxonomicName authority="Ailán-Choke &amp; Arredondo &amp; Davies, 2023" authorityName="Ailán-Choke &amp; Arredondo &amp; Davies" authorityYear="2023" box="[151,361,1646,1673]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="1" pageNumber="123" phylum="Nematoda" rank="species" species="anguila" status="sp. nov.">
<emphasis bold="true" box="[151,361,1646,1673]" italics="true" pageId="1" pageNumber="123">Hedruris anguila</emphasis>
</taxonomicName>
<taxonomicNameLabel box="[368,462,1647,1673]" pageId="1" pageNumber="123" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection box="[151,646,1719,1745]" pageId="1" pageNumber="123" type="type_taxon">
<paragraph blockId="1.[151,1436,1719,2033]" box="[151,646,1719,1745]" pageId="1" pageNumber="123">
<emphasis bold="true" box="[151,269,1719,1745]" pageId="1" pageNumber="123">Type-host</emphasis>
:
<taxonomicName authority="Bloch" authorityName="Bloch" authorityYear="1795" box="[284,646,1719,1745]" class="Actinopterygii" family="Synbranchidae" genus="Synbranchus" kingdom="Animalia" order="Synbranchiformes" pageId="1" pageNumber="123" phylum="Chordata" rank="species" species="marmoratus">
<emphasis box="[284,572,1719,1745]" italics="true" pageId="1" pageNumber="123">Synbranchus marmoratus</emphasis>
Bloch
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection pageId="1" pageNumber="123" type="description">
<paragraph blockId="1.[151,1436,1719,2033]" box="[199,656,1754,1781]" pageId="1" pageNumber="123">
<emphasis bold="true" box="[199,386,1754,1780]" pageId="1" pageNumber="123">Site of infection</emphasis>
: Stomach and intestine.
</paragraph>
<paragraph blockId="1.[151,1436,1719,2033]" pageId="1" pageNumber="123">
<emphasis bold="true" box="[199,354,1790,1816]" pageId="1" pageNumber="123">Type-locality</emphasis>
:
<materialsCitation country="Argentina" county="Lower Parana" latitude="-33.9" location="River Parana-Guazu" longLatPrecision="1202" longitude="-58.866665" municipality="River Parana" pageId="1" pageNumber="123" specimenCount="1" stateProvince="Entre Rios">
<location LSID="urn:lsid:plazi:treatment:3133879B7414EA1FFF7BF9EDE7B2FC2B:BC4560567414EA1BFE9BF97CE129F8B3" box="[375,610,1791,1817]" country="Argentina" county="Lower Parana" latitude="-33.9" longLatPrecision="1202" longitude="-58.866665" municipality="River Parana" name="River Parana-Guazu" pageId="1" pageNumber="123" stateProvince="Entre Rios">River Paraná-Guazú</location>
(tributary of the
<collectingMunicipality box="[826,982,1791,1817]" pageId="1" pageNumber="123">River Paraná</collectingMunicipality>
;
<collectingCounty box="[999,1166,1791,1817]" pageId="1" pageNumber="123">Lower Paraná</collectingCounty>
),
<collectingRegion box="[1191,1432,1791,1817]" country="Argentina" name="Entre Rios" pageId="1" pageNumber="123">Entre Ríos Province</collectingRegion>
,
<collectingCountry box="[151,262,1827,1853]" name="Argentina" pageId="1" pageNumber="123">Argentina</collectingCountry>
(
<geoCoordinate box="[278,371,1828,1855]" degrees="33" direction="south" minutes="54" orientation="latitude" pageId="1" pageNumber="123" precision="925" value="-33.9">33°54S</geoCoordinate>
;
<geoCoordinate box="[383,487,1828,1855]" degrees="58" direction="west" minutes="52" orientation="longitude" pageId="1" pageNumber="123" precision="925" value="-58.866665">58°52W</geoCoordinate>
)
</materialsCitation>
.
</paragraph>
<paragraph blockId="1.[151,1436,1719,2033]" box="[199,717,1863,1889]" pageId="1" pageNumber="123">
<emphasis bold="true" box="[199,329,1863,1889]" pageId="1" pageNumber="123">Prevalence</emphasis>
: 18.8% (6 of 32 fishes examined).
</paragraph>
<paragraph blockId="1.[151,1436,1719,2033]" box="[199,763,1898,1925]" pageId="1" pageNumber="123">
<emphasis bold="true" box="[199,378,1898,1925]" pageId="1" pageNumber="123">Mean intensity</emphasis>
: 28.7 (2124 nematodes per fish).
</paragraph>
<paragraph blockId="1.[151,1436,1719,2033]" box="[199,797,1935,1961]" pageId="1" pageNumber="123">
<emphasis bold="true" box="[199,406,1935,1961]" pageId="1" pageNumber="123">Mean abundance</emphasis>
: 6.6 nematodes per examined fish.
</paragraph>
</subSubSection>
<subSubSection pageId="1" pageNumber="123" type="materials_examined">
<paragraph blockId="1.[151,1436,1719,2033]" pageId="1" pageNumber="123">
<emphasis bold="true" box="[199,378,1970,1996]" pageId="1" pageNumber="123">Type-material:</emphasis>
<typeStatus box="[387,496,1971,1997]" pageId="1" pageNumber="123">Holotype</typeStatus>
: male (MACN-Pa 746);
<typeStatus box="[779,874,1971,1997]" pageId="1" pageNumber="123">allotype</typeStatus>
: female (MACN-Pa 747);
<typeStatus box="[1180,1292,1971,1997]" pageId="1" pageNumber="123">paratypes</typeStatus>
:
<specimenCount box="[1304,1395,1971,1997]" pageId="1" pageNumber="123" type="male">8 males</specimenCount>
,
<specimenCount pageId="1" pageNumber="123" type="female">10 females</specimenCount>
(MACN-Pa 748).
</paragraph>
</subSubSection>
<subSubSection box="[199,1003,151,177]" pageId="2" pageNumber="124" type="etymology">
<paragraph blockId="2.[151,1437,151,501]" box="[199,1003,151,177]" pageId="2" pageNumber="124">
<emphasis bold="true" box="[199,338,151,177]" pageId="2" pageNumber="124">Etymology:</emphasis>
The specific name refers to common name of the fish host.
</paragraph>
</subSubSection>
<subSubSection lastPageId="3" lastPageNumber="125" pageId="2" pageNumber="124" type="description">
<paragraph blockId="2.[151,1437,151,501]" box="[199,467,186,213]" pageId="2" pageNumber="124">
<emphasis bold="true" box="[199,337,186,212]" pageId="2" pageNumber="124">Description</emphasis>
(
<figureCitation box="[353,458,187,213]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStartId-0="2.[151,250,1428,1452]" captionStartId-1="3.[151,250,1182,1206]" captionStartId-2="4.[151,250,1872,1896]" captionTargetBox-0="[161,1423,531,1391]" captionTargetBox-1="[162,1424,422,1155]" captionTargetBox-2="[260,1350,219,1836]" captionTargetId-0="figure-157@2.[151,1436,522,1402]" captionTargetId-1="figure-157@3.[155,1433,417,1158]" captionTargetId-2="figure-18@4.[227,1361,181,1848]" captionTargetPageId-0="2" captionTargetPageId-1="3" captionTargetPageId-2="4" captionText-0="FIGURE 1. Hedruris anguila sp. nov. A. Anterior end of female, lateral view; B, C. Cephalic end of female, lateral view and dorsal view, respectively; D.Area rugosa with ventral longitudinal ridges in male, ventral view; E. Posterior end of male, lateral view; F. Spicule, lateral view." captionText-1="FIGURE 2. Hedruris anguila sp. nov. Female specimen. A. Tail showing caudal hook, ventral view; B. Posterior end showing the vulva, sublateral view; C. Egg." captionText-2="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi-0="http://doi.org/10.5281/zenodo.7797910" figureDoi-1="http://doi.org/10.5281/zenodo.7797912" figureDoi-2="http://doi.org/10.5281/zenodo.7797914" httpUri-0="https://zenodo.org/record/7797910/files/figure.png" httpUri-1="https://zenodo.org/record/7797912/files/figure.png" httpUri-2="https://zenodo.org/record/7797914/files/figure.png" pageId="2" pageNumber="124">Figs. 13</figureCitation>
)
</paragraph>
<paragraph blockId="2.[151,1437,151,501]" pageId="2" pageNumber="124">
<emphasis bold="true" box="[199,303,222,248]" pageId="2" pageNumber="124">General.</emphasis>
Medium-sized nematodes. Cuticle thick with fine transverse striations. Anterior end rounded, with two large pseudolabia, each bearing a pair of digitiform papillae, a pair of sessile papillae and an amphid (
<figureCitation captionStart="FIGURE 1" captionStartId="2.[151,250,1428,1452]" captionTargetBox="[161,1423,531,1391]" captionTargetId="figure-157@2.[151,1436,522,1402]" captionTargetPageId="2" captionText="FIGURE 1. Hedruris anguila sp. nov. A. Anterior end of female, lateral view; B, C. Cephalic end of female, lateral view and dorsal view, respectively; D.Area rugosa with ventral longitudinal ridges in male, ventral view; E. Posterior end of male, lateral view; F. Spicule, lateral view." figureDoi="http://doi.org/10.5281/zenodo.7797910" httpUri="https://zenodo.org/record/7797910/files/figure.png" pageId="2" pageNumber="124">Figs. 1B, C</figureCitation>
;
<figureCitation box="[183,251,295,321]" captionStart="FIGURE 3" captionStartId="4.[151,250,1872,1896]" captionTargetBox="[260,1350,219,1836]" captionTargetId="figure-18@4.[227,1361,181,1848]" captionTargetPageId="4" captionText="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi="http://doi.org/10.5281/zenodo.7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="2" pageNumber="124">3A, B</figureCitation>
). Base of each pseudolabium supported by posteriorly directed cuticular ridge (
<figureCitation box="[1125,1214,295,321]" captionStart="FIGURE 3" captionStartId="4.[151,250,1872,1896]" captionTargetBox="[260,1350,219,1836]" captionTargetId="figure-18@4.[227,1361,181,1848]" captionTargetPageId="4" captionText="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi="http://doi.org/10.5281/zenodo.7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="2" pageNumber="124">Fig. 3A</figureCitation>
). Dorsal and ventral interlabium between pseudolabia, each with two bifurcated lateral cuticular projections extending posteriorly, with cuticular ridge posteriorly directed between bifurcations (
<figureCitation box="[799,933,367,393]" captionStart="FIGURE 3" captionStartId="4.[151,250,1872,1896]" captionTargetBox="[260,1350,219,1836]" captionTargetId="figure-18@4.[227,1361,181,1848]" captionTargetPageId="4" captionText="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi="http://doi.org/10.5281/zenodo.7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="2" pageNumber="124">Figs. 3A, B</figureCitation>
). Buccal cavity thin walled. Oesophagus not clearly divided into muscular and glandular portions (
<figureCitation box="[755,844,403,429]" captionStart="FIGURE 1" captionStartId="2.[151,250,1428,1452]" captionTargetBox="[161,1423,531,1391]" captionTargetId="figure-157@2.[151,1436,522,1402]" captionTargetPageId="2" captionText="FIGURE 1. Hedruris anguila sp. nov. A. Anterior end of female, lateral view; B, C. Cephalic end of female, lateral view and dorsal view, respectively; D.Area rugosa with ventral longitudinal ridges in male, ventral view; E. Posterior end of male, lateral view; F. Spicule, lateral view." figureDoi="http://doi.org/10.5281/zenodo.7797910" httpUri="https://zenodo.org/record/7797910/files/figure.png" pageId="2" pageNumber="124">Fig. 1A</figureCitation>
). Deirids simple, situated just posterior to nerve ring and above the level of excretory pore (
<figureCitation box="[591,681,439,465]" captionStart="FIGURE 1" captionStartId="2.[151,250,1428,1452]" captionTargetBox="[161,1423,531,1391]" captionTargetId="figure-157@2.[151,1436,522,1402]" captionTargetPageId="2" captionText="FIGURE 1. Hedruris anguila sp. nov. A. Anterior end of female, lateral view; B, C. Cephalic end of female, lateral view and dorsal view, respectively; D.Area rugosa with ventral longitudinal ridges in male, ventral view; E. Posterior end of male, lateral view; F. Spicule, lateral view." figureDoi="http://doi.org/10.5281/zenodo.7797910" httpUri="https://zenodo.org/record/7797910/files/figure.png" pageId="2" pageNumber="124">Fig. 1A</figureCitation>
). Females with a sclerotized hook for attachment to host and male generally found encircling female (
<figureCitation box="[545,678,475,501]" captionStart="FIGURE 2" captionStartId="3.[151,250,1182,1206]" captionTargetBox="[162,1424,422,1155]" captionTargetId="figure-157@3.[155,1433,417,1158]" captionTargetPageId="3" captionText="FIGURE 2. Hedruris anguila sp. nov. Female specimen. A. Tail showing caudal hook, ventral view; B. Posterior end showing the vulva, sublateral view; C. Egg." figureDoi="http://doi.org/10.5281/zenodo.7797912" httpUri="https://zenodo.org/record/7797912/files/figure.png" pageId="2" pageNumber="124">Figs. 2A, B</figureCitation>
;
<figureCitation box="[690,725,475,501]" captionStart="FIGURE 3" captionStartId="4.[151,250,1872,1896]" captionTargetBox="[260,1350,219,1836]" captionTargetId="figure-18@4.[227,1361,181,1848]" captionTargetPageId="4" captionText="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi="http://doi.org/10.5281/zenodo.7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="2" pageNumber="124">3E</figureCitation>
).
</paragraph>
<caption ID-DOI="http://doi.org/10.5281/zenodo.7797910" ID-Zenodo-Dep="7797910" httpUri="https://zenodo.org/record/7797910/files/figure.png" pageId="2" pageNumber="124" startId="2.[151,250,1428,1452]" targetBox="[161,1423,531,1391]" targetPageId="2">
<paragraph blockId="2.[151,1437,1428,1524]" pageId="2" pageNumber="124">
<emphasis bold="true" box="[151,276,1428,1452]" pageId="2" pageNumber="124">FIGURE 1.</emphasis>
<taxonomicName authority="Ailán-Choke &amp; Arredondo &amp; Davies, 2023" authorityName="Ailán-Choke &amp; Arredondo &amp; Davies" authorityYear="2023" box="[283,458,1428,1452]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="2" pageNumber="124" phylum="Nematoda" rank="species" species="anguila" status="sp. nov.">
<emphasis box="[283,458,1428,1452]" italics="true" pageId="2" pageNumber="124">Hedruris anguila</emphasis>
</taxonomicName>
<emphasis bold="true" box="[465,546,1429,1453]" pageId="2" pageNumber="124">
<taxonomicNameLabel box="[465,546,1429,1453]" pageId="2" pageNumber="124" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
A. Anterior end of female, lateral view; B, C. Cephalic end of female, lateral view and dorsal view, respectively; D. Area rugosa with ventral longitudinal ridges in male, ventral view; E. Posterior end of male, lateral view; F. Spicule, lateral view.
</paragraph>
</caption>
<paragraph blockId="2.[151,1437,1571,2029]" pageId="2" pageNumber="124">
<emphasis bold="true" box="[199,271,1571,1597]" pageId="2" pageNumber="124">Males</emphasis>
(based on
<specimenCount box="[400,580,1571,1597]" pageId="2" pageNumber="124" type="generic">nine specimens</specimenCount>
). Body length 7.111.1 (8.7) mm, maximum body width 202317 (274.4). Pseudolabia 81110 (96) long. Oesophagus 1.21.6 (1.4) mm long. Nerve ring 260324 (291), deirids 217295 (250) and excretory pore 363485 (427) from anterior extremity. Posterior end of body spirally coiled. Caudal alae present, narrow, supported by caudal papillae (
<figureCitation box="[685,818,1679,1705]" captionStart="FIGURE 3" captionStartId="4.[151,250,1872,1896]" captionTargetBox="[260,1350,219,1836]" captionTargetId="figure-18@4.[227,1361,181,1848]" captionTargetPageId="4" captionText="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi="http://doi.org/10.5281/zenodo.7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="2" pageNumber="124">Figs. 3F, G</figureCitation>
). Precloacal papillae absent, eight pairs of postcloacal subventral papillae; in
<specimenCount box="[408,512,1715,1741]" pageId="2" pageNumber="124" type="male">one male</specimenCount>
, arrangement of subventral papillae asymmetrical, 7 papillae on one side and 8 on opposite site (
<figureCitation box="[309,407,1751,1777]" captionStart="FIGURE 1" captionStartId="2.[151,250,1428,1452]" captionTargetBox="[161,1423,531,1391]" captionTargetId="figure-157@2.[151,1436,522,1402]" captionTargetPageId="2" captionText="FIGURE 1. Hedruris anguila sp. nov. A. Anterior end of female, lateral view; B, C. Cephalic end of female, lateral view and dorsal view, respectively; D.Area rugosa with ventral longitudinal ridges in male, ventral view; E. Posterior end of male, lateral view; F. Spicule, lateral view." figureDoi="http://doi.org/10.5281/zenodo.7797910" httpUri="https://zenodo.org/record/7797910/files/figure.png" pageId="2" pageNumber="124">Figs. 1E</figureCitation>
;
<figureCitation box="[420,486,1751,1777]" captionStart="FIGURE 3" captionStartId="4.[151,250,1872,1896]" captionTargetBox="[260,1350,219,1836]" captionTargetId="figure-18@4.[227,1361,181,1848]" captionTargetPageId="4" captionText="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi="http://doi.org/10.5281/zenodo.7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="2" pageNumber="124">3F, G</figureCitation>
). A single pair of phasmids present. Area rugosa with six ventral longitudinal ridges with scale-like knobs, extending 1.61.7 (1.7) mm from cloaca (
<figureCitation box="[893,984,1787,1813]" captionStart="FIGURE 1" captionStartId="2.[151,250,1428,1452]" captionTargetBox="[161,1423,531,1391]" captionTargetId="figure-157@2.[151,1436,522,1402]" captionTargetPageId="2" captionText="FIGURE 1. Hedruris anguila sp. nov. A. Anterior end of female, lateral view; B, C. Cephalic end of female, lateral view and dorsal view, respectively; D.Area rugosa with ventral longitudinal ridges in male, ventral view; E. Posterior end of male, lateral view; F. Spicule, lateral view." figureDoi="http://doi.org/10.5281/zenodo.7797910" httpUri="https://zenodo.org/record/7797910/files/figure.png" pageId="2" pageNumber="124">Fig. 1D</figureCitation>
). Spicules 127177 (160) long, slender fused on its mid-length, curved in distal tip with lateral membranous expansions (
<figureCitation box="[1076,1161,1823,1849]" captionStart="FIGURE 1" captionStartId="2.[151,250,1428,1452]" captionTargetBox="[161,1423,531,1391]" captionTargetId="figure-157@2.[151,1436,522,1402]" captionTargetPageId="2" captionText="FIGURE 1. Hedruris anguila sp. nov. A. Anterior end of female, lateral view; B, C. Cephalic end of female, lateral view and dorsal view, respectively; D.Area rugosa with ventral longitudinal ridges in male, ventral view; E. Posterior end of male, lateral view; F. Spicule, lateral view." figureDoi="http://doi.org/10.5281/zenodo.7797910" httpUri="https://zenodo.org/record/7797910/files/figure.png" pageId="2" pageNumber="124">Fig. 1F</figureCitation>
). Gubernaculum absent. Tail 228344 (293) long, with caudal spike (
<figureCitation box="[649,778,1859,1885]" captionStart="FIGURE 3" captionStartId="4.[151,250,1872,1896]" captionTargetBox="[260,1350,219,1836]" captionTargetId="figure-18@4.[227,1361,181,1848]" captionTargetPageId="4" captionText="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi="http://doi.org/10.5281/zenodo.7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="2" pageNumber="124">Figs. 3F, G</figureCitation>
).
</paragraph>
<paragraph blockId="2.[151,1437,1571,2029]" lastBlockId="3.[151,1437,150,393]" lastPageId="3" lastPageNumber="125" pageId="2" pageNumber="124">
<emphasis bold="true" box="[199,297,1895,1921]" pageId="2" pageNumber="124">Females</emphasis>
(based on 11 gravid specimens). Body length 10.6 14.8 (12.7) mm, maximum body width 432634 (525.1). Pseudolabia 83130 (106) long. Oesophagus 1.52.2 (1.9) mm long. Nerve ring 295383 (329), deirids 221363 (295) and excretory pore 432579 (509) from anterior extremity (
<figureCitation box="[1014,1106,1967,1993]" captionStart="FIGURE 1" captionStartId="2.[151,250,1428,1452]" captionTargetBox="[161,1423,531,1391]" captionTargetId="figure-157@2.[151,1436,522,1402]" captionTargetPageId="2" captionText="FIGURE 1. Hedruris anguila sp. nov. A. Anterior end of female, lateral view; B, C. Cephalic end of female, lateral view and dorsal view, respectively; D.Area rugosa with ventral longitudinal ridges in male, ventral view; E. Posterior end of male, lateral view; F. Spicule, lateral view." figureDoi="http://doi.org/10.5281/zenodo.7797910" httpUri="https://zenodo.org/record/7797910/files/figure.png" pageId="2" pageNumber="124">Fig. 1A</figureCitation>
). Vulva 530786 (701) from posterior end, 216383 (322) from anus (
<figureCitation box="[627,764,2003,2029]" captionStart="FIGURE 2" captionStartId="3.[151,250,1182,1206]" captionTargetBox="[162,1424,422,1155]" captionTargetId="figure-157@3.[155,1433,417,1158]" captionTargetPageId="3" captionText="FIGURE 2. Hedruris anguila sp. nov. Female specimen. A. Tail showing caudal hook, ventral view; B. Posterior end showing the vulva, sublateral view; C. Egg." figureDoi="http://doi.org/10.5281/zenodo.7797912" httpUri="https://zenodo.org/record/7797912/files/figure.png" pageId="2" pageNumber="124">Figs. 2A, B</figureCitation>
). Uterus prodelphic, filled with eggs. Tail curved dorsally, 314452 (377) long (
<figureCitation box="[392,494,151,177]" captionStart="FIGURE 2" captionStartId="3.[151,250,1182,1206]" captionTargetBox="[162,1424,422,1155]" captionTargetId="figure-157@3.[155,1433,417,1158]" captionTargetPageId="3" captionText="FIGURE 2. Hedruris anguila sp. nov. Female specimen. A. Tail showing caudal hook, ventral view; B. Posterior end showing the vulva, sublateral view; C. Egg." figureDoi="http://doi.org/10.5281/zenodo.7797912" httpUri="https://zenodo.org/record/7797912/files/figure.png" pageId="3" pageNumber="125">Figs. 2A</figureCitation>
;
<figureCitation box="[507,577,151,177]" captionStart="FIGURE 3" captionStartId="4.[151,250,1872,1896]" captionTargetBox="[260,1350,219,1836]" captionTargetId="figure-18@4.[227,1361,181,1848]" captionTargetPageId="4" captionText="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi="http://doi.org/10.5281/zenodo.7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="3" pageNumber="125">3D, E</figureCitation>
). Caudal eversible prehensile structure armed with sclerotized hook 98147 (113) long and two lateral projections 3069 (46) long (
<figureCitation box="[800,903,187,213]" captionStart="FIGURE 2" captionStartId="3.[151,250,1182,1206]" captionTargetBox="[162,1424,422,1155]" captionTargetId="figure-157@3.[155,1433,417,1158]" captionTargetPageId="3" captionText="FIGURE 2. Hedruris anguila sp. nov. Female specimen. A. Tail showing caudal hook, ventral view; B. Posterior end showing the vulva, sublateral view; C. Egg." figureDoi="http://doi.org/10.5281/zenodo.7797912" httpUri="https://zenodo.org/record/7797912/files/figure.png" pageId="3" pageNumber="125">Figs. 2A</figureCitation>
,
<figureCitation box="[917,955,187,213]" captionStart="FIGURE 3" captionStartId="4.[151,250,1872,1896]" captionTargetBox="[260,1350,219,1836]" captionTargetId="figure-18@4.[227,1361,181,1848]" captionTargetPageId="4" captionText="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi="http://doi.org/10.5281/zenodo.7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="3" pageNumber="125">3D</figureCitation>
). Accessory elongate sclerotized structure formed by two arms, 187314 (230) long; both arms extending lateroventrally from hook base to anterior part of body, not reaching the anus. Cuticular spines in posterior part of body, distributed in two areas: perianal and dorsal on tail tip. Dorsal area densely covered by large, sharply pointed spines, distributed in transverse lines and decreasing in size anteriorly (
<figureCitation box="[482,572,331,357]" captionStart="FIGURE 3" captionStartId="4.[151,250,1872,1896]" captionTargetBox="[260,1350,219,1836]" captionTargetId="figure-18@4.[227,1361,181,1848]" captionTargetPageId="4" captionText="FIGURE 3. SEM micrographs of Hedruris anguila sp. nov. A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region)." figureDoi="http://doi.org/10.5281/zenodo.7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="3" pageNumber="125">Fig. 3D</figureCitation>
). Perianal spiny area with irregular rows of small spines extending anteriorly to vulval area. Non-mammillated larvated eggs, 3744 (40) long, 12 wide, operculated at each end (
<figureCitation box="[1269,1358,367,393]" captionStart="FIGURE 2" captionStartId="3.[151,250,1182,1206]" captionTargetBox="[162,1424,422,1155]" captionTargetId="figure-157@3.[155,1433,417,1158]" captionTargetPageId="3" captionText="FIGURE 2. Hedruris anguila sp. nov. Female specimen. A. Tail showing caudal hook, ventral view; B. Posterior end showing the vulva, sublateral view; C. Egg." figureDoi="http://doi.org/10.5281/zenodo.7797912" httpUri="https://zenodo.org/record/7797912/files/figure.png" pageId="3" pageNumber="125">Fig. 2C</figureCitation>
).
</paragraph>
</subSubSection>
<caption ID-DOI="http://doi.org/10.5281/zenodo.7797912" ID-Zenodo-Dep="7797912" httpUri="https://zenodo.org/record/7797912/files/figure.png" pageId="3" pageNumber="125" startId="3.[151,250,1182,1206]" targetBox="[162,1424,422,1155]" targetPageId="3">
<paragraph blockId="3.[151,1436,1182,1243]" pageId="3" pageNumber="125">
<emphasis bold="true" box="[151,275,1182,1206]" pageId="3" pageNumber="125">FIGURE 2.</emphasis>
<taxonomicName authority="Ailán-Choke &amp; Arredondo &amp; Davies, 2023" authorityName="Ailán-Choke &amp; Arredondo &amp; Davies" authorityYear="2023" box="[281,456,1182,1206]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="anguila" status="sp. nov.">
<emphasis box="[281,456,1182,1206]" italics="true" pageId="3" pageNumber="125">Hedruris anguila</emphasis>
</taxonomicName>
<emphasis bold="true" box="[463,543,1182,1206]" pageId="3" pageNumber="125">
<taxonomicNameLabel box="[463,543,1182,1206]" pageId="3" pageNumber="125" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
Female specimen. A. Tail showing caudal hook, ventral view; B. Posterior end showing the vulva, sublateral view; C. Egg.
</paragraph>
</caption>
<subSubSection lastPageId="5" lastPageNumber="127" pageId="3" pageNumber="125" type="discussion">
<paragraph blockId="3.[151,1437,1288,1999]" pageId="3" pageNumber="125">
<emphasis bold="true" box="[199,315,1288,1314]" pageId="3" pageNumber="125">Remarks.</emphasis>
To date,
<taxonomicName authorityName="Nitzsch" authorityYear="1821" box="[438,539,1288,1314]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="genus">
<emphasis box="[438,539,1288,1314]" italics="true" pageId="3" pageNumber="125">Hedruris</emphasis>
</taxonomicName>
comprises 25 valid species described from amphibians, reptiles and fishes distributed worldwide (
<bibRefCitation author="Bursey, C. R. &amp; Goldberg, S. R." box="[409,694,1324,1350]" pageId="3" pageNumber="125" pagination="556 - 559" refId="ref6279" refString="Bursey, C. R. &amp; Goldberg, S. R. (2000) Hedruris hanleyae n. sp. (Nematoda: Hedruridae) from Hemidactylus garnotii (Sauria: Gekkonidae) from the Cook Islands. Oceania. Journal of Parasitology, 86, 556 - 559. https: // doi. org / 10.1645 / 0022 - 3395 (2000) 086 [0556: HHNSNH] 2.0. CO; 2" type="journal article" year="2000">Bursey &amp; Goldberg 2000</bibRefCitation>
;
<bibRefCitation author="Brugni, N. L. &amp; Viozzi, G. P." box="[704,952,1324,1350]" pageId="3" pageNumber="125" pagination="109 - 115" refId="ref6218" refString="Brugni, N. L. &amp; Viozzi, G. P. (2010) A new hedrurid species (Nematoda) from galaxiid fishes in Patagonia (Argentina), and infection of amphipods as intermediate host. Journal of Parasitology, 96, 109 - 115. https: // doi. org / 10.1645 / GE- 2251.1" type="journal article" year="2010">Brugni &amp; Viozzi 2010</bibRefCitation>
;
<bibRefCitation author="Rossin, M. A. &amp; Timi, J. M." box="[962,1189,1324,1350]" pageId="3" pageNumber="125" pagination="899 - 904" refId="ref8247" refString="Rossin, M. A. &amp; Timi, J. M. (2016) A new species of Hedruris Nitzsch, 1821 (Nematoda: Hedruridae) parasitic in the freshwater fish Oligosarcus jenynsii (Gunther, 1864) (Characidae) from Argentina. Systematic Parasitology, 93, 899 - 904. https: // doi. org / 10.1007 / s 11230 - 016 - 9675 - 3" type="journal article" year="2016">Rossin &amp; Timi 2016</bibRefCitation>
;
<bibRefCitation author="Palumbo, E. &amp; Servian, A. &amp; Sanchez, R. &amp; Diaz, J. I." box="[1199,1425,1324,1350]" pageId="3" pageNumber="125" pagination="1 - 11" refId="ref7765" refString="Palumbo, E., Servian, A., Sanchez, R. &amp; Diaz, J. I. (2020) A new species of Hedruris (Nematoda: Hedruridae) from freshwater turtles, its life cycle and biogeographic distribution of the genus. Journal of Helminthology, 94 (e 93), 1 - 11. https: // doi. org / 10.1017 / S 0022149 X 19000877" type="journal article" year="2020">
Palumbo
<emphasis box="[1304,1359,1324,1350]" italics="true" pageId="3" pageNumber="125">et al.</emphasis>
2020
</bibRefCitation>
). The specimens examined in the present study were assigned to
<taxonomicName authorityName="Nitzsch" authorityYear="1821" box="[889,990,1360,1386]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="genus">
<emphasis box="[889,990,1360,1386]" italics="true" pageId="3" pageNumber="125">Hedruris</emphasis>
</taxonomicName>
based on the presence of a retractable sclerotized hook on the female tail (
<bibRefCitation author="Baker, M. R." box="[561,697,1396,1422]" pageId="3" pageNumber="125" pagination="1567 - 1572" refId="ref6030" refString="Baker, M. R. (1986) Revision of Hedruris Nitzsch (Nematoda: Habronematoidea) from aquatic vertebrates of North America. Canadian Journal of Zoology, 64, 1567 - 1572. https: // doi. org / 10.1139 / z 86 - 234" type="journal article" year="1986">Baker 1986</bibRefCitation>
;
<bibRefCitation author="Anderson, R. &amp; Chabaud, A. &amp; Willmott, S." box="[709,953,1396,1422]" pageId="3" pageNumber="125" refId="ref5810" refString="Anderson, R., Chabaud, A. &amp; Willmott, S. (2009) Keys to the nematode parasites of vertebrates: archival volume. CABI Publising. Wallingford, 463 pp. https: // doi. org / 10.1079 / 9781845935726.0000" type="book" year="2009">
Anderson
<emphasis box="[826,884,1396,1422]" italics="true" pageId="3" pageNumber="125">et al.</emphasis>
2009
</bibRefCitation>
). Species of
<taxonomicName authorityName="Nitzsch" authorityYear="1821" box="[1098,1199,1396,1422]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="genus">
<emphasis box="[1098,1199,1396,1422]" italics="true" pageId="3" pageNumber="125">Hedruris</emphasis>
</taxonomicName>
are distinguished on the basis of the morphology of cephalic structures, the number and arrangement of caudal papillae in males, the shape of eggs in females, the size of spicules, and the female caudal hook (
<bibRefCitation author="Baker, M. R." box="[996,1131,1468,1494]" pageId="3" pageNumber="125" pagination="1567 - 1572" refId="ref6030" refString="Baker, M. R. (1986) Revision of Hedruris Nitzsch (Nematoda: Habronematoidea) from aquatic vertebrates of North America. Canadian Journal of Zoology, 64, 1567 - 1572. https: // doi. org / 10.1139 / z 86 - 234" type="journal article" year="1986">Baker 1986</bibRefCitation>
;
<bibRefCitation author="Bursey, C. R. &amp; Goldberg, S. R." box="[1144,1432,1468,1495]" pageId="3" pageNumber="125" pagination="556 - 559" refId="ref6279" refString="Bursey, C. R. &amp; Goldberg, S. R. (2000) Hedruris hanleyae n. sp. (Nematoda: Hedruridae) from Hemidactylus garnotii (Sauria: Gekkonidae) from the Cook Islands. Oceania. Journal of Parasitology, 86, 556 - 559. https: // doi. org / 10.1645 / 0022 - 3395 (2000) 086 [0556: HHNSNH] 2.0. CO; 2" type="journal article" year="2000">Bursey &amp; Goldberg 2000</bibRefCitation>
;
<bibRefCitation author="Bursey, C. R. &amp; Goldberg, S. R." box="[151,212,1504,1530]" pageId="3" pageNumber="125" pagination="1 - 10" refId="ref6357" refString="Bursey, C. R. &amp; Goldberg, S. R. (2007) New species of Hedruris (Nematoda: Hedruridae), Anuracanthorhynchus lutzi (Hamann, 1891) n. comb. and other helminths in Lithobates warszewitschii (Anura: Ranidae) from Costa Rica. Caribbean Journal of Science, 43, 1 - 10. https: // doi. org / 10.18475 / cjos. v 43 i 1. a 2" type="journal article" year="2007">2007</bibRefCitation>
). The new species herein described can be differentiated from all other congeners by the morphology and size of spicules, the number and arrangement of caudal papillae and the presence of a caudal spike on the male tail, and the shape and size of eggs.
</paragraph>
<paragraph blockId="3.[151,1437,1288,1999]" lastBlockId="5.[151,1437,151,897]" lastPageId="5" lastPageNumber="127" pageId="3" pageNumber="125">
The Neotropical species of
<taxonomicName authorityName="Nitzsch" authorityYear="1821" box="[503,604,1612,1638]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="genus">
<emphasis box="[503,604,1612,1638]" italics="true" pageId="3" pageNumber="125">Hedruris</emphasis>
</taxonomicName>
are characterized by possessing only postcloacal papillae, except
<taxonomicName authority="Bursey &amp; Goldberg, 2007" authorityName="Bursey &amp; Goldberg" authorityYear="2007" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="heyeri">
<emphasis box="[1333,1436,1612,1638]" italics="true" pageId="3" pageNumber="125">H. heyeri</emphasis>
<bibRefCitation author="Bursey, C. R. &amp; Goldberg, S. R." box="[151,444,1648,1675]" pageId="3" pageNumber="125" pagination="1 - 10" refId="ref6357" refString="Bursey, C. R. &amp; Goldberg, S. R. (2007) New species of Hedruris (Nematoda: Hedruridae), Anuracanthorhynchus lutzi (Hamann, 1891) n. comb. and other helminths in Lithobates warszewitschii (Anura: Ranidae) from Costa Rica. Caribbean Journal of Science, 43, 1 - 10. https: // doi. org / 10.18475 / cjos. v 43 i 1. a 2" type="journal article" year="2007">Bursey &amp; Goldberg, 2007</bibRefCitation>
</taxonomicName>
and
<taxonomicName authority="Baird, 1858" authorityName="Baird" authorityYear="1858" box="[500,778,1648,1675]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="siredonis">
<emphasis box="[500,637,1648,1674]" italics="true" pageId="3" pageNumber="125">H. siredonis</emphasis>
<bibRefCitation author="Baird, W." box="[645,778,1648,1675]" pageId="3" pageNumber="125" pagination="224 - 225" refId="ref6129" refString="Baird, W. (1858) Description of two new species of Entozoa. Proceedings of the Zoological Society of London, 26, 224 - 225. https: // doi. org / 10.1111 / j. 1469 - 7998.1858. tb 06366. x" type="journal article" year="1858">Baird, 1858</bibRefCitation>
</taxonomicName>
(also recorded in Nearctic Region) that exhibit a different arrangement of caudal papillae (
<bibRefCitation author="Baker, M. R." box="[512,647,1684,1710]" pageId="3" pageNumber="125" pagination="1567 - 1572" refId="ref6030" refString="Baker, M. R. (1986) Revision of Hedruris Nitzsch (Nematoda: Habronematoidea) from aquatic vertebrates of North America. Canadian Journal of Zoology, 64, 1567 - 1572. https: // doi. org / 10.1139 / z 86 - 234" type="journal article" year="1986">Baker 1986</bibRefCitation>
;
<bibRefCitation author="Bursey, C. R. &amp; Goldberg, S. R." box="[659,945,1684,1711]" pageId="3" pageNumber="125" pagination="556 - 559" refId="ref6279" refString="Bursey, C. R. &amp; Goldberg, S. R. (2000) Hedruris hanleyae n. sp. (Nematoda: Hedruridae) from Hemidactylus garnotii (Sauria: Gekkonidae) from the Cook Islands. Oceania. Journal of Parasitology, 86, 556 - 559. https: // doi. org / 10.1645 / 0022 - 3395 (2000) 086 [0556: HHNSNH] 2.0. CO; 2" type="journal article" year="2000">Bursey &amp; Goldberg 2000</bibRefCitation>
,
<bibRefCitation author="Bursey, C. R. &amp; Goldberg, S. R." box="[956,1014,1684,1710]" pageId="3" pageNumber="125" pagination="1 - 10" refId="ref6357" refString="Bursey, C. R. &amp; Goldberg, S. R. (2007) New species of Hedruris (Nematoda: Hedruridae), Anuracanthorhynchus lutzi (Hamann, 1891) n. comb. and other helminths in Lithobates warszewitschii (Anura: Ranidae) from Costa Rica. Caribbean Journal of Science, 43, 1 - 10. https: // doi. org / 10.18475 / cjos. v 43 i 1. a 2" type="journal article" year="2007">2007</bibRefCitation>
) (see
<tableCitation box="[1080,1162,1684,1710]" captionStart="TABLE 1" captionStartId="6.[151,248,473,501]" captionTargetPageId="6" captionText="TABLE 1. List of Hedruris species with data about host, geographical distribution and diagnostic characteristics." pageId="3" pageNumber="125">Table 1</tableCitation>
). Based on the presence of eight pairs of postcloacal papillae,
<taxonomicName authority="Ailán-Choke &amp; Arredondo &amp; Davies, 2023" authorityName="Ailán-Choke &amp; Arredondo &amp; Davies" authorityYear="2023" box="[588,785,1720,1746]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="anguila" status="sp. nov.">
<emphasis box="[588,785,1720,1746]" italics="true" pageId="3" pageNumber="125">Hedruris anguila</emphasis>
</taxonomicName>
<emphasis bold="true" box="[794,887,1720,1746]" pageId="3" pageNumber="125">
<taxonomicNameLabel box="[794,887,1720,1746]" pageId="3" pageNumber="125" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
resembles
<taxonomicName authority="Bendezu, 1974" authorityName="Bendezu" authorityYear="1974" box="[1018,1349,1720,1746]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="juninensis">
<emphasis box="[1018,1169,1721,1746]" italics="true" pageId="3" pageNumber="125">H. juninensis</emphasis>
<bibRefCitation author="Bendezu, L. S." box="[1178,1349,1720,1746]" pageId="3" pageNumber="125" pagination="45 - 51" refId="ref6177" refString="Bendezu, L. S. (1974) Nueva especie del genero Hedruris Nitzsch, 1821 Nematode Parasito de Batrachophrynus brachydactylus Peters, 1873. Revista Ciencias Universidad Nacional Mayor de San Marcos, 70, 45 - 51." type="journal article" year="1974">Bendezú, 1974</bibRefCitation>
</taxonomicName>
and
<taxonomicName authority="Schuurmans Stekhoven, 1952" authorityName="Schuurmans Stekhoven" authorityYear="1952" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="mucronifer">
<emphasis italics="true" pageId="3" pageNumber="125">H. mucronifer</emphasis>
<bibRefCitation author="Schuurmans Stekhoven, Jr. J. H." box="[281,616,1756,1783]" pageId="3" pageNumber="125" pagination="315 - 400" refId="ref8360" refString="Schuurmans Stekhoven, Jr. J. H. (1952) Nematodos parasitarios de anfibios, pajaros y mamiferos de la Republica Argentina. Acta Zoologica Lilloana, 10, 315 - 400." type="journal article" year="1952">Schuurmans Stekhoven, 1952</bibRefCitation>
</taxonomicName>
, but differs in having smaller eggs (3744
<emphasis box="[1089,1119,1757,1782]" italics="true" pageId="3" pageNumber="125">vs.</emphasis>
4353) and smaller spicules (127177
<emphasis box="[264,287,1793,1818]" italics="true" pageId="3" pageNumber="125">vs</emphasis>
200430). The new species shares the shape of eggs with
<taxonomicName authorityName="Rossin &amp; Timi" authorityYear="2016" box="[926,1024,1792,1818]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="bifida">
<emphasis box="[926,1024,1792,1818]" italics="true" pageId="3" pageNumber="125">H. bifida</emphasis>
</taxonomicName>
;
<taxonomicName authorityName="Mateo" authorityYear="1971" box="[1038,1222,1792,1818]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="basilichtensis">
<emphasis box="[1038,1222,1792,1818]" italics="true" pageId="3" pageNumber="125">H. basilichtensis</emphasis>
</taxonomicName>
;
<taxonomicName authority="Ibanez &amp; Cordova, 1976" authorityName="Ibanez" authorityYear="1976" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="moniezi">
<emphasis box="[1236,1356,1793,1818]" italics="true" pageId="3" pageNumber="125">H. moniezi</emphasis>
<bibRefCitation author="Ibanez, H. N. &amp; Cordova, B. E." pageId="3" pageNumber="125" pagination="231 - 254" refId="ref6878" refString="Ibanez, H. N. &amp; Cordova, B. E. (1976) Cuatro especies nuevas de nematodos del sur del Peru y redescripcion de Hedruris orestiae Moniez, 1889. Memorias do Instituto Oswaldo Cruz, 74 (3 - 4), 231 - 254. https: // doi. org / 10.1590 / S 0074 - 02761976000300004" type="journal article" year="1976">Ibañez &amp; Córdova, 1976</bibRefCitation>
</taxonomicName>
;
<taxonomicName authorityName="Moniez" authorityYear="1889" box="[365,489,1829,1854]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="orestiae">
<emphasis box="[365,489,1829,1854]" italics="true" pageId="3" pageNumber="125">H. orestiae</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="Brugni &amp; Viozzi" authorityYear="2010" box="[547,677,1829,1854]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="suttonae">
<emphasis box="[547,677,1829,1854]" italics="true" pageId="3" pageNumber="125">H. suttonae</emphasis>
</taxonomicName>
, but differs in having a distinctly smaller female hook (98147
<emphasis box="[1406,1429,1829,1854]" italics="true" pageId="3" pageNumber="125">vs</emphasis>
. 137292 µm), smaller spicules (127177
<emphasis box="[613,636,1865,1890]" italics="true" pageId="3" pageNumber="125">vs</emphasis>
. 175326) and a different number of caudal papillae (16
<emphasis box="[1268,1298,1865,1890]" italics="true" pageId="3" pageNumber="125">vs.</emphasis>
18) (
<bibRefCitation author="Bursey, C. R. &amp; Goldberg, S. R." pageId="3" pageNumber="125" pagination="556 - 559" refId="ref6279" refString="Bursey, C. R. &amp; Goldberg, S. R. (2000) Hedruris hanleyae n. sp. (Nematoda: Hedruridae) from Hemidactylus garnotii (Sauria: Gekkonidae) from the Cook Islands. Oceania. Journal of Parasitology, 86, 556 - 559. https: // doi. org / 10.1645 / 0022 - 3395 (2000) 086 [0556: HHNSNH] 2.0. CO; 2" type="journal article" year="2000">Bursey &amp; Goldberg 2000</bibRefCitation>
;
<bibRefCitation author="Brugni, N. L. &amp; Viozzi, G. P." box="[371,633,1900,1926]" pageId="3" pageNumber="125" pagination="109 - 115" refId="ref6218" refString="Brugni, N. L. &amp; Viozzi, G. P. (2010) A new hedrurid species (Nematoda) from galaxiid fishes in Patagonia (Argentina), and infection of amphipods as intermediate host. Journal of Parasitology, 96, 109 - 115. https: // doi. org / 10.1645 / GE- 2251.1" type="journal article" year="2010">Brugni &amp; Viozzi 2010</bibRefCitation>
;
<bibRefCitation author="Rossin, M. A. &amp; Timi, J. M." box="[647,887,1900,1926]" pageId="3" pageNumber="125" pagination="899 - 904" refId="ref8247" refString="Rossin, M. A. &amp; Timi, J. M. (2016) A new species of Hedruris Nitzsch, 1821 (Nematoda: Hedruridae) parasitic in the freshwater fish Oligosarcus jenynsii (Gunther, 1864) (Characidae) from Argentina. Systematic Parasitology, 93, 899 - 904. https: // doi. org / 10.1007 / s 11230 - 016 - 9675 - 3" type="journal article" year="2016">Rossin &amp; Timi 2016</bibRefCitation>
;
<bibRefCitation author="Palumbo, E. &amp; Servian, A. &amp; Sanchez, R. &amp; Diaz, J. I." box="[901,1137,1900,1926]" pageId="3" pageNumber="125" pagination="1 - 11" refId="ref7765" refString="Palumbo, E., Servian, A., Sanchez, R. &amp; Diaz, J. I. (2020) A new species of Hedruris (Nematoda: Hedruridae) from freshwater turtles, its life cycle and biogeographic distribution of the genus. Journal of Helminthology, 94 (e 93), 1 - 11. https: // doi. org / 10.1017 / S 0022149 X 19000877" type="journal article" year="2020">
Palumbo
<emphasis box="[1010,1069,1900,1926]" italics="true" pageId="3" pageNumber="125">et al.</emphasis>
2020
</bibRefCitation>
) (see
<tableCitation box="[1208,1293,1900,1926]" captionStart="TABLE 1" captionStartId="6.[151,248,473,501]" captionTargetPageId="6" captionText="TABLE 1. List of Hedruris species with data about host, geographical distribution and diagnostic characteristics." pageId="3" pageNumber="125">Table 1</tableCitation>
). Moreover,
<taxonomicName authority="Ailán-Choke &amp; Arredondo &amp; Davies, 2023" authorityName="Ailán-Choke &amp; Arredondo &amp; Davies" authorityYear="2023" box="[151,345,1936,1962]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="anguila" status="sp. nov.">
<emphasis box="[151,345,1936,1962]" italics="true" pageId="3" pageNumber="125">Hedruris anguila</emphasis>
</taxonomicName>
<emphasis bold="true" box="[351,440,1936,1962]" pageId="3" pageNumber="125">
<taxonomicNameLabel box="[351,440,1936,1962]" pageId="3" pageNumber="125" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
can be distinguished from
<taxonomicName authority="Palumbo, Servian, Sanchez &amp; Diaz, 2020" authorityName="Palumbo, Servian, Sanchez &amp; Diaz" authorityYear="2020" box="[741,1319,1936,1962]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="3" pageNumber="125" phylum="Nematoda" rank="species" species="dratini">
<emphasis box="[741,850,1936,1962]" italics="true" pageId="3" pageNumber="125">H. dratini</emphasis>
<bibRefCitation author="Palumbo, E. &amp; Servian, A. &amp; Sanchez, R. &amp; Diaz, J. I." box="[857,1319,1936,1962]" pageId="3" pageNumber="125" pagination="1 - 11" refId="ref7765" refString="Palumbo, E., Servian, A., Sanchez, R. &amp; Diaz, J. I. (2020) A new species of Hedruris (Nematoda: Hedruridae) from freshwater turtles, its life cycle and biogeographic distribution of the genus. Journal of Helminthology, 94 (e 93), 1 - 11. https: // doi. org / 10.1017 / S 0022149 X 19000877" type="journal article" year="2020">Palumbo, Servián, Sánchez &amp; Diaz, 2020</bibRefCitation>
</taxonomicName>
by having non-mammilated eggs and also the number of pairs of postcloacal papillae (16
<emphasis box="[1084,1114,1973,1998]" italics="true" pageId="3" pageNumber="125">vs.</emphasis>
18) (
<bibRefCitation author="Palumbo, E. &amp; Servian, A. &amp; Sanchez, R. &amp; Diaz, J. I." box="[1181,1425,1972,1998]" pageId="3" pageNumber="125" pagination="1 - 11" refId="ref7765" refString="Palumbo, E., Servian, A., Sanchez, R. &amp; Diaz, J. I. (2020) A new species of Hedruris (Nematoda: Hedruridae) from freshwater turtles, its life cycle and biogeographic distribution of the genus. Journal of Helminthology, 94 (e 93), 1 - 11. https: // doi. org / 10.1017 / S 0022149 X 19000877" type="journal article" year="2020">
Palumbo
<emphasis box="[1293,1353,1972,1998]" italics="true" pageId="3" pageNumber="125">et al.</emphasis>
2020
</bibRefCitation>
). Of the
<taxonomicName box="[229,418,151,177]" pageId="5" pageNumber="127">
<emphasis box="[229,330,151,177]" italics="true" pageId="5" pageNumber="127">Hedruris</emphasis>
species
</taxonomicName>
previously mentioned,
<taxonomicName authorityName="Rossin &amp; Timi" authorityYear="2016" box="[682,781,151,177]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="bifida">
<emphasis box="[682,781,151,177]" italics="true" pageId="5" pageNumber="127">H. bifida</emphasis>
</taxonomicName>
,
<taxonomicName authorityName="Brugni &amp; Viozzi" authorityYear="2010" box="[795,925,151,176]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="suttonae">
<emphasis box="[795,925,151,176]" italics="true" pageId="5" pageNumber="127">H. suttonae</emphasis>
</taxonomicName>
,
<taxonomicName authorityName="Mateo" authorityYear="1971" box="[938,1125,151,177]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="basilichtensis">
<emphasis box="[938,1125,151,177]" italics="true" pageId="5" pageNumber="127">H. basilichtensis</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="Moniez" authorityYear="1889" box="[1179,1302,151,176]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="orestiae">
<emphasis box="[1179,1302,151,176]" italics="true" pageId="5" pageNumber="127">H. orestiae</emphasis>
</taxonomicName>
were found infecting only fish hosts, of which the first two were found in characid and galaxiids from
<collectingCountry box="[1170,1284,187,213]" name="Argentina" pageId="5" pageNumber="127">Argentina</collectingCountry>
, respectively. The remaining species, except
<taxonomicName authorityName="Palumbo, Servian, Sanchez &amp; Diaz" authorityYear="2020" box="[494,603,223,249]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="dratini">
<emphasis box="[494,603,223,249]" italics="true" pageId="5" pageNumber="127">H. dratini</emphasis>
</taxonomicName>
, were found in frog hosts (
<bibRefCitation author="Bursey, C. R. &amp; Goldberg, S. R." box="[900,1187,223,249]" pageId="5" pageNumber="127" pagination="556 - 559" refId="ref6279" refString="Bursey, C. R. &amp; Goldberg, S. R. (2000) Hedruris hanleyae n. sp. (Nematoda: Hedruridae) from Hemidactylus garnotii (Sauria: Gekkonidae) from the Cook Islands. Oceania. Journal of Parasitology, 86, 556 - 559. https: // doi. org / 10.1645 / 0022 - 3395 (2000) 086 [0556: HHNSNH] 2.0. CO; 2" type="journal article" year="2000">Bursey &amp; Goldberg 2000</bibRefCitation>
;
<bibRefCitation author="Palumbo, E. &amp; Servian, A. &amp; Sanchez, R. &amp; Diaz, J. I." box="[1197,1425,223,249]" pageId="5" pageNumber="127" pagination="1 - 11" refId="ref7765" refString="Palumbo, E., Servian, A., Sanchez, R. &amp; Diaz, J. I. (2020) A new species of Hedruris (Nematoda: Hedruridae) from freshwater turtles, its life cycle and biogeographic distribution of the genus. Journal of Helminthology, 94 (e 93), 1 - 11. https: // doi. org / 10.1017 / S 0022149 X 19000877" type="journal article" year="2020">
Palumbo
<emphasis box="[1303,1358,223,249]" italics="true" pageId="5" pageNumber="127">et al.</emphasis>
2020
</bibRefCitation>
).
<taxonomicName authorityName="Palumbo, Servian, Sanchez &amp; Diaz" authorityYear="2020" box="[151,334,259,285]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="dratini">
<emphasis box="[151,334,259,285]" italics="true" pageId="5" pageNumber="127">Hedruris dratini</emphasis>
</taxonomicName>
was recorded in freshwater turtles from
<collectingCountry box="[777,891,259,285]" name="Argentina" pageId="5" pageNumber="127">Argentina</collectingCountry>
, e.g.
<taxonomicName authorityName="Cope" authorityYear="1869" box="[947,1202,259,285]" class="Reptilia" family="Chelidae" genus="Hydromedusa" kingdom="Animalia" order="Testudines" pageId="5" pageNumber="127" phylum="Chordata" rank="species" species="tectifera">
<emphasis box="[947,1202,259,285]" italics="true" pageId="5" pageNumber="127">Hydromedusa tectifera</emphasis>
</taxonomicName>
and
<taxonomicName authority="(Palumbo et al. 2020)" baseAuthorityName="Palumbo" baseAuthorityYear="2020" class="Reptilia" family="Chelidae" genus="Phrynops" kingdom="Animalia" order="Testudines" pageId="5" pageNumber="127" phylum="Chordata" rank="species" species="hilarii">
<emphasis box="[1253,1436,259,285]" italics="true" pageId="5" pageNumber="127">Phrynops hilarii</emphasis>
(
<bibRefCitation author="Palumbo, E. &amp; Servian, A. &amp; Sanchez, R. &amp; Diaz, J. I." box="[159,391,295,321]" pageId="5" pageNumber="127" pagination="1 - 11" refId="ref7765" refString="Palumbo, E., Servian, A., Sanchez, R. &amp; Diaz, J. I. (2020) A new species of Hedruris (Nematoda: Hedruridae) from freshwater turtles, its life cycle and biogeographic distribution of the genus. Journal of Helminthology, 94 (e 93), 1 - 11. https: // doi. org / 10.1017 / S 0022149 X 19000877" type="journal article" year="2020">
Palumbo
<emphasis box="[267,323,295,321]" italics="true" pageId="5" pageNumber="127">et al.</emphasis>
2020
</bibRefCitation>
)
</taxonomicName>
.
</paragraph>
<caption ID-DOI="http://doi.org/10.5281/zenodo.7797914" ID-Zenodo-Dep="7797914" httpUri="https://zenodo.org/record/7797914/files/figure.png" pageId="4" pageNumber="126" startId="4.[151,250,1872,1896]" targetBox="[260,1350,219,1836]" targetPageId="4">
<paragraph blockId="4.[151,1437,1872,2040]" pageId="4" pageNumber="126">
<emphasis bold="true" box="[151,271,1872,1896]" pageId="4" pageNumber="126">FIGURE 3</emphasis>
. SEM micrographs of
<taxonomicName authority="Ailán-Choke &amp; Arredondo &amp; Davies, 2023" authorityName="Ailán-Choke &amp; Arredondo &amp; Davies" authorityYear="2023" box="[510,686,1872,1896]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="4" pageNumber="126" phylum="Nematoda" rank="species" species="anguila" status="sp. nov.">
<emphasis box="[510,686,1872,1896]" italics="true" pageId="4" pageNumber="126">Hedruris anguila</emphasis>
</taxonomicName>
<emphasis bold="true" box="[695,777,1873,1897]" pageId="4" pageNumber="126">
<taxonomicNameLabel box="[695,777,1873,1897]" pageId="4" pageNumber="126" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
A, B. Cephalic end, subapical view (lp, lateral pseudolabia; di, dorsal interlabium; vi, ventral interlabium; black arrow, digitiform papillae; black arrowhead, amphid); C. Anterior end, lateral view (black arrow, excretory pore); D. Posterior end, sublateral view (black arrow, anus); E. Caudal end of female with hook everted, subdorsal view; F. Caudal end of male showing postcloacal papillae, subventral view (black arrow, caudal spike); G. Caudal end of male, lateral view (black arrow, anus region).
</paragraph>
</caption>
<paragraph blockId="5.[151,1437,151,897]" pageId="5" pageNumber="127">
It should be noted that the non-mammilated eggs are also characteristics of
<taxonomicName authority="Thomas, 1959" authorityName="Thomas" authorityYear="1959" box="[1053,1397,330,357]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="longispicula">
<emphasis box="[1053,1226,331,357]" italics="true" pageId="5" pageNumber="127">H. longispicula</emphasis>
<bibRefCitation author="Thomas, P. M." box="[1233,1397,330,357]" pageId="5" pageNumber="127" pagination="151 - 162" refId="ref8395" refString="Thomas, P. M. (1959) Some nematode parasites from Australian hosts. Transactions of the Royal Society of South Australia, 82, 151 - 162." type="journal article" year="1959">Thomas, 1959</bibRefCitation>
</taxonomicName>
,
<taxonomicName authority="Andrews 1974" authorityName="Andrews" authorityYear="1974" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="minuta">
<emphasis italics="true" pageId="5" pageNumber="127">H. minuta</emphasis>
<bibRefCitation author="Andrews, J. R. H." box="[234,401,367,393]" pageId="5" pageNumber="127" pagination="329 - 332" refId="ref5856" refString="Andrews, J. R. H. (1974) A new species of Hedruris (Nematoda: Spirurida) from the skink Leiolopsima smithi. New Zealand Journal of Zoology, 1, 329 - 332. https: // doi. org / 10.1080 / 03014223.1974.9517837" type="journal article" year="1974">Andrews 1974</bibRefCitation>
</taxonomicName>
,
<taxonomicName authority="Baylis, 1931" authorityName="Baylis" authorityYear="1931" box="[412,703,367,393]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="spinigera">
<emphasis box="[412,553,367,392]" italics="true" pageId="5" pageNumber="127">H. spinigera</emphasis>
<bibRefCitation author="Baylis, H. A." box="[559,703,367,393]" pageId="5" pageNumber="127" pagination="105 - 114" refId="ref6079" refString="Baylis, H. A. (1931) VIII. - A species of the Nematode genus Hedruris occurring in the trout in New Zealand. Annals and Magazine of Natural History, 7, 105 - 114. https: // doi. org / 10.1080 / 00222933108673285" type="journal article" year="1931">Baylis, 1931</bibRefCitation>
</taxonomicName>
,
<taxonomicName authority="Bursey &amp; Goldberg, 2000" authorityName="Bursey &amp; Goldberg" authorityYear="2000" box="[715,1150,367,393]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="hanleyae">
<emphasis box="[715,850,367,393]" italics="true" pageId="5" pageNumber="127">H. hanleyae</emphasis>
<bibRefCitation author="Bursey, C. R. &amp; Goldberg, S. R." box="[857,1150,367,393]" pageId="5" pageNumber="127" pagination="556 - 559" refId="ref6279" refString="Bursey, C. R. &amp; Goldberg, S. R. (2000) Hedruris hanleyae n. sp. (Nematoda: Hedruridae) from Hemidactylus garnotii (Sauria: Gekkonidae) from the Cook Islands. Oceania. Journal of Parasitology, 86, 556 - 559. https: // doi. org / 10.1645 / 0022 - 3395 (2000) 086 [0556: HHNSNH] 2.0. CO; 2" type="journal article" year="2000">Bursey &amp; Goldberg, 2000</bibRefCitation>
</taxonomicName>
,
<taxonomicName authority="Jones, 2013" authorityName="Jones" authorityYear="2013" box="[1161,1432,367,393]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="saltuarii">
<emphasis box="[1161,1290,367,393]" italics="true" pageId="5" pageNumber="127">H. saltuarii</emphasis>
<bibRefCitation author="Jones, H. I." box="[1297,1432,367,393]" pageId="5" pageNumber="127" pagination="47 - 59" refId="ref6980" refString="Jones, H. I. (2013) Gastrointestinal nematodes from three species of leaf-tailed geckos (Reptilia: Saltuarius spp.), with descriptions of new species of Skrjabinodon (Oxyuroidea: Pharyngodonidae) and Hedruris (Habronematoidea: Hedruridae). Comparative Parasitology, 80, 47 - 59. https: // doi. org / 10.1654 / 4590.1" type="journal article" year="2013">Jones, 2013</bibRefCitation>
</taxonomicName>
,
<taxonomicName authority="Jones &amp; Resasco, 2016" authorityName="Jones &amp; Resasco" authorityYear="2016" box="[151,594,403,429]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="wogwogensis">
<emphasis box="[151,333,403,428]" italics="true" pageId="5" pageNumber="127">H. wogwogensis</emphasis>
<bibRefCitation author="Jones, H. I. &amp; Resasco, J." box="[339,594,403,429]" pageId="5" pageNumber="127" pagination="173 - 177" refId="ref7044" refString="Jones, H. I. &amp; Resasco, J. (2016) A new species of Hedruris (Nematoda: Hedruridae) from the Australian Skink Lampropholis guichenoti (Reptilia: Scincidae). Comparative Parasitology, 83, 173 - 177. https: // doi. org / 10.1654 / 4806 i. 1" type="journal article" year="2016">Jones &amp; Resasco, 2016</bibRefCitation>
</taxonomicName>
(Australian species);
<taxonomicName authority="Baker, 1982" authorityName="Baker" authorityYear="1982" box="[835,1172,403,429]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="transvaalensis">
<emphasis box="[835,1030,403,429]" italics="true" pageId="5" pageNumber="127">H. transvaalensis</emphasis>
<bibRefCitation author="Baker, M. R." box="[1035,1172,403,429]" pageId="5" pageNumber="127" pagination="3134 - 3142" refId="ref5978" refString="Baker, M. R. (1982) Systematics and zoogeography of three new nematode parasites of the frog Breviceps sylvestris Fitz Simons from South Africa. Canadian Journal of Zoology, 60, 3134 - 3142. https: // doi. org / 10.1139 / z 82 - 398" type="journal article" year="1982">Baker, 1982</bibRefCitation>
</taxonomicName>
, (Etiophian species);
<taxonomicName authority="(Leidy) Chandler, 1919" authorityName="Chandler" authorityYear="1919" baseAuthorityName="Leidy" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="pendula">
<emphasis italics="true" pageId="5" pageNumber="127">H. pendula</emphasis>
(Leidy)
<bibRefCitation author="Chandler, A. C." box="[340,512,439,465]" pageId="5" pageNumber="127" pagination="116 - 122" refId="ref6438" refString="Chandler, A. C. (1919) On a species of Hedruris occurring commonly in the western newt, Notophthalmus torosus. Journal of Parasitology, 5, 116 - 122. https: // doi. org / 10.2307 / 3271163" type="journal article" year="1919">Chandler, 1919</bibRefCitation>
</taxonomicName>
(species recorded in Nearctic and Palearctic Regions);
<taxonomicName authority="Hasegawa, 1989" authorityName="Hasegawa" authorityYear="1989" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="miyakoensis">
<emphasis box="[1135,1307,439,465]" italics="true" pageId="5" pageNumber="127">H. miyakoensis</emphasis>
<bibRefCitation author="Hasegawa, H." pageId="5" pageNumber="127" pagination="145 - 150" refId="ref6772" refString="Hasegawa, H. (1989) Neoentomelas asatoi gen. et sp. n. (Nematoda: Rhabdiasidae) and Hedruris miyakoensis sp. n. (Nematoda: Hedruridae) from skinks of the Ryukyu Archipelago, Japan. Proceedings of the Helminthological Society of Washington, 56, 145 - 150." type="journal article" year="1989">Hasegawa, 1989</bibRefCitation>
</taxonomicName>
and
<taxonomicName authority="Yamaguti, 1941" authorityName="Yamaguti" authorityYear="1941" box="[256,589,475,501]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="neobythitis">
<emphasis box="[256,411,475,501]" italics="true" pageId="5" pageNumber="127">H. neobythitis</emphasis>
<bibRefCitation author="Yamaguti, S." box="[414,589,475,501]" pageId="5" pageNumber="127" pagination="343 - 396" refId="ref8461" refString="Yamaguti, S. (1941) Studies on the helminth fauna of Japan. Part 33. Nematodes of fishes, II. Japanese Journal of Zoology, 9, 343 - 396." type="journal article" year="1941">Yamaguti, 1941</bibRefCitation>
</taxonomicName>
(
<collectingRegion box="[601,695,475,501]" country="Egypt" name="Ash Sharqiyah" pageId="5" pageNumber="127">Oriental</collectingRegion>
species). In addition,
<taxonomicName authority="Ailán-Choke &amp; Arredondo &amp; Davies, 2023" authorityName="Ailán-Choke &amp; Arredondo &amp; Davies" authorityYear="2023" box="[931,1049,475,501]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="anguila" status="sp. nov.">
<emphasis box="[931,1049,475,501]" italics="true" pageId="5" pageNumber="127">H. anguila</emphasis>
</taxonomicName>
<emphasis bold="true" box="[1052,1139,475,501]" pageId="5" pageNumber="127">
<taxonomicNameLabel box="[1052,1139,475,501]" pageId="5" pageNumber="127" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
shares the presence of only eight pairs of postcloacal papille with
<taxonomicName authorityName="Baker" authorityYear="1982" box="[579,775,511,537]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="transvaalensis">
<emphasis box="[579,775,511,537]" italics="true" pageId="5" pageNumber="127">H. transvaalensis</emphasis>
</taxonomicName>
, but differs in the length of spicules (127177
<emphasis box="[1300,1331,511,536]" italics="true" pageId="5" pageNumber="127">vs.</emphasis>
456) and female hook (98147
<emphasis box="[390,420,547,572]" italics="true" pageId="5" pageNumber="127">vs.</emphasis>
170). Moreover, the new species also differs from
<taxonomicName authorityName="Thomas" authorityYear="1959" box="[967,1136,547,573]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="longispicula">
<emphasis box="[967,1136,547,573]" italics="true" pageId="5" pageNumber="127">H.longispicula</emphasis>
</taxonomicName>
,
<taxonomicName authorityName="Baylis" authorityYear="1931" box="[1148,1286,547,572]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="spinigera">
<emphasis box="[1148,1286,547,572]" italics="true" pageId="5" pageNumber="127">H. spinigera</emphasis>
</taxonomicName>
,
<taxonomicName authorityName="Bursey &amp; Goldberg" authorityYear="2000" box="[1297,1429,547,573]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="hanleyae">
<emphasis box="[1297,1429,547,573]" italics="true" pageId="5" pageNumber="127">H. hanleyae</emphasis>
</taxonomicName>
,
<taxonomicName authorityName="Chandler" authorityYear="1919" baseAuthorityName="Leidy" box="[151,276,583,609]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="pendula">
<emphasis box="[151,276,583,609]" italics="true" pageId="5" pageNumber="127">H. pendula</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="Jones" authorityYear="2013" box="[332,462,583,609]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="saltuarii">
<emphasis box="[332,462,583,609]" italics="true" pageId="5" pageNumber="127">H. saltuarii</emphasis>
</taxonomicName>
in showing smaller spicules (127177
<emphasis box="[904,934,583,608]" italics="true" pageId="5" pageNumber="127">vs.</emphasis>
190360).
<taxonomicName authorityName="Andrews" authorityYear="1974" box="[1063,1250,583,609]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="minuta">
<emphasis box="[1063,1250,583,609]" italics="true" pageId="5" pageNumber="127">Hedruris minuta</emphasis>
</taxonomicName>
,
<taxonomicName authorityName="Hasegawa" authorityYear="1989" box="[1265,1436,583,609]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="miyakoensis">
<emphasis box="[1265,1436,583,609]" italics="true" pageId="5" pageNumber="127">H. miyakoensis</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="Yamaguti" authorityYear="1941" box="[200,358,619,645]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="neobythitis">
<emphasis box="[200,358,619,645]" italics="true" pageId="5" pageNumber="127">H. neobythitis</emphasis>
</taxonomicName>
present spicule length somewhat similar to
<taxonomicName authority="Ailán-Choke &amp; Arredondo &amp; Davies, 2023" authorityName="Ailán-Choke &amp; Arredondo &amp; Davies" authorityYear="2023" box="[858,980,619,645]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="anguila" status="sp. nov.">
<emphasis box="[858,980,619,645]" italics="true" pageId="5" pageNumber="127">H. anguila</emphasis>
</taxonomicName>
<emphasis bold="true" box="[987,1078,619,645]" pageId="5" pageNumber="127">
<taxonomicNameLabel box="[987,1078,619,645]" pageId="5" pageNumber="127" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, but have different number and arrangement of caudal papillae than the new species (all with more than ten pairs of caudal papillae) (
<tableCitation box="[1333,1419,655,681]" captionStart="TABLE 1" captionStartId="6.[151,248,473,501]" captionTargetPageId="6" captionText="TABLE 1. List of Hedruris species with data about host, geographical distribution and diagnostic characteristics." pageId="5" pageNumber="127">Table 1</tableCitation>
).
</paragraph>
<paragraph blockId="5.[151,1437,151,897]" pageId="5" pageNumber="127">
In respect to
<taxonomicName authority="Nitzsch, 1821" authorityName="Nitzsch" authorityYear="1821" box="[342,668,691,717]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="androphora">
<emphasis box="[342,508,691,717]" italics="true" pageId="5" pageNumber="127">H. androphora</emphasis>
<bibRefCitation author="Nitzsch, C. L." box="[514,668,691,717]" pageId="5" pageNumber="127" pagination="44 - 49" refId="ref7556" refString="Nitzsch, C. L. (1821) Ascaris. Allgemeine Encyclopadie der Wissenschaften und Kunste, 6, 44 - 49." type="journal article" year="1821">Nitzsch, 1821</bibRefCitation>
</taxonomicName>
(Palearctic species) and
<taxonomicName authority="Morishita, 1926" authorityName="Morishita" authorityYear="1926" box="[943,1225,691,717]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="ijimai">
<emphasis box="[943,1041,691,716]" italics="true" pageId="5" pageNumber="127">H. ijimai</emphasis>
<bibRefCitation author="Morishita, K." box="[1047,1225,691,717]" pageId="5" pageNumber="127" pagination="1 - 32" refId="ref7511" refString="Morishita, K. (1926) Studies on some nematode parasites of frogs and toads in Japan, with notes on their distribution and frequency. Journal of the Faculty of Science, Imperial University of Tokyo, 4, 1 - 32." type="journal article" year="1926">Morishita, 1926</bibRefCitation>
</taxonomicName>
(
<collectingRegion box="[1239,1333,691,717]" country="Egypt" name="Ash Sharqiyah" pageId="5" pageNumber="127">Oriental</collectingRegion>
species); both parasites of amphibians resemble the new species in the length of spicules and hook in the female tail, but differ by having mammillated eggs (
<tableCitation box="[553,634,763,789]" captionStart="TABLE 1" captionStartId="6.[151,248,473,501]" captionTargetPageId="6" captionText="TABLE 1. List of Hedruris species with data about host, geographical distribution and diagnostic characteristics." pageId="5" pageNumber="127">Table 1</tableCitation>
) (
<bibRefCitation author="Bursey, C. R. &amp; Goldberg, S. R." box="[659,945,763,789]" pageId="5" pageNumber="127" pagination="556 - 559" refId="ref6279" refString="Bursey, C. R. &amp; Goldberg, S. R. (2000) Hedruris hanleyae n. sp. (Nematoda: Hedruridae) from Hemidactylus garnotii (Sauria: Gekkonidae) from the Cook Islands. Oceania. Journal of Parasitology, 86, 556 - 559. https: // doi. org / 10.1645 / 0022 - 3395 (2000) 086 [0556: HHNSNH] 2.0. CO; 2" type="journal article" year="2000">Bursey &amp; Goldberg 2000</bibRefCitation>
;
<bibRefCitation author="Rossin, M. A. &amp; Timi, J. M." box="[954,1184,763,789]" pageId="5" pageNumber="127" pagination="899 - 904" refId="ref8247" refString="Rossin, M. A. &amp; Timi, J. M. (2016) A new species of Hedruris Nitzsch, 1821 (Nematoda: Hedruridae) parasitic in the freshwater fish Oligosarcus jenynsii (Gunther, 1864) (Characidae) from Argentina. Systematic Parasitology, 93, 899 - 904. https: // doi. org / 10.1007 / s 11230 - 016 - 9675 - 3" type="journal article" year="2016">Rossin &amp; Timi 2016</bibRefCitation>
). In addition,
<taxonomicName authority="Chatin, 1876" authorityName="Chatin" authorityYear="1876" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="hipsirhinae">
<emphasis italics="true" pageId="5" pageNumber="127">Hedruris hipsirhinae</emphasis>
<bibRefCitation author="Chatin, M. J." box="[284,431,799,825]" pageId="5" pageNumber="127" pagination="801 - 805" refId="ref6482" refString="Chatin, M. J. (1876) Etudes helminthologiques. Deuxieme serie. Comptes Rendus de l'Association Francaise pour l'Avancement des Sciences, Paris, 4, 801 - 805." type="journal article" year="1876">Chatin, 1876</bibRefCitation>
</taxonomicName>
,
<taxonomicName authority="Yamag" authorityName="Yamag" box="[441,641,799,825]" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="bryttosi">
<emphasis box="[441,641,799,825]" italics="true" pageId="5" pageNumber="127">H. bryttosi Yamag</emphasis>
</taxonomicName>
uti, 1935 (
<collectingRegion box="[753,847,799,825]" country="Egypt" name="Ash Sharqiyah" pageId="5" pageNumber="127">Oriental</collectingRegion>
species) and
<taxonomicName authority="Ramadan, Awad &amp; Taha, 2014" authorityName="Ramadan, Awad &amp; Taha" authorityYear="2014" class="Secernentea" family="Habronematidae" genus="Hedruris" kingdom="Animalia" order="Spirurida" pageId="5" pageNumber="127" phylum="Nematoda" rank="species" species="lutjanenses">
<emphasis box="[995,1154,799,825]" italics="true" pageId="5" pageNumber="127">H. lutjanenses</emphasis>
<bibRefCitation author="Ramadan, M. M. &amp; Awad, E. R. &amp; Taha, R. G." pageId="5" pageNumber="127" pagination="309 - 320" refId="ref7998" refString="Ramadan, M. M., Awad, E. R. &amp; Taha, R. G. (2014) Anatomical and Surface morphology of Hedruris lutjanenses sp. n. (Nematoda: Hedruridae) from the common marine water fish Lutjanus synagris in Damietta, Egypt. Journal of Egyptian Society of Parasitology, 44, 309 - 320. https: // doi. org / 10.21608 / jesp. 2014.90381" type="journal article" year="2014">Ramadan, Awad &amp; Taha, 2014</bibRefCitation>
</taxonomicName>
(Palearctic species), the last two species of which parasitize fish, can be distinguished from the new species in number and arrangement of caudal papillae (with ten or more pairs of caudal papillae) (see
<tableCitation box="[1175,1256,871,897]" captionStart="TABLE 1" captionStartId="6.[151,248,473,501]" captionTargetPageId="6" captionText="TABLE 1. List of Hedruris species with data about host, geographical distribution and diagnostic characteristics." pageId="5" pageNumber="127">Table 1</tableCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>