241 lines
33 KiB
XML
241 lines
33 KiB
XML
<document id="26F2ECE44D547148DEBF7505F62AA917" ID-CLB-Dataset="9491" ID-DOI="10.11646/zootaxa.4881.2.10" ID-GBIF-Dataset="4f80927b-5289-4d6c-8bd2-30d59347a052" ID-ISSN="1175-5326" ID-Zenodo-Dep="4283575" ID-ZooBank="C7F4A67A-6DE3-4DAF-8898-514CD6998A4B" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1605974043884" checkinUser="plazi" docAuthor="Revkova, Tatiana N." docDate="2020" docId="03D43156AC48FFAD33985FCB90D7FB41" docLanguage="en" docName="zootaxa.4881.2.10.pdf" docOrigin="Zootaxa 4881 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Theristus siwaschensis Revkova 2020, sp. n." docType="treatment" docVersion="9" lastPageNumber="376" masterDocId="FFED492EAC49FFA9330F5A28940FFFE3" masterDocTitle="Two species of the genus Theristus Bastian, 1865 (Nematoda: Xyalidae) from the hypersaline water bodies of the Crimea (Azov-Black Sea basin)" masterLastPageNumber="382" masterPageNumber="372" pageNumber="373" updateTime="1698846388572" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="B788A023E814F374A6B6E036BD10B9D5">Two species of the genus Theristus Bastian, 1865 (Nematoda: Xyalidae) from the hypersaline water bodies of the Crimea (Azov-Black Sea basin)</mods:title>
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<mods:roleTerm id="5F5C551639A95DFA6358434891A83AC7">Author</mods:roleTerm>
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<mods:namePart id="AB5F8FE25C6737FCC9CBEE3327A671A4">Revkova, Tatiana N.</mods:namePart>
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<mods:typeOfResource id="2243501E833574EB126F18BFF6B8C834">text</mods:typeOfResource>
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<mods:title id="D551BB333A6276A91E5194DD5949AEDC">Zootaxa</mods:title>
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<mods:part id="7F497A0C01B231363A80FC7F0DF91B98">
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<mods:date id="CECDC46FAC90C235647AEFE67B1CE769">2020</mods:date>
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<mods:number id="B42F7967DF5B7B19238A104A3EE9132A">2020-11-19</mods:number>
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<mods:number id="D066A72DBCAF01942AB0285FA2BCBD4D">4881</mods:number>
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<mods:identifier id="677CB27961C277D803CCD3D006EC344B" type="DOI">10.11646/zootaxa.4881.2.10</mods:identifier>
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<mods:identifier id="942C51316E91D4D69DBA5C6428C1CB25" type="GBIF-Dataset">4f80927b-5289-4d6c-8bd2-30d59347a052</mods:identifier>
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<mods:identifier id="36A83BB8048CFE19D553303BB14EEF02" type="ISSN">1175-5326</mods:identifier>
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<treatment id="03D43156AC48FFAD33985FCB90D7FB41" ID-DOI="http://doi.org/10.5281/zenodo.4328146" ID-GBIF-Taxon="170532480" ID-Zenodo-Dep="4328146" LSID="urn:lsid:plazi:treatment:03D43156AC48FFAD33985FCB90D7FB41" httpUri="http://treatment.plazi.org/id/03D43156AC48FFAD33985FCB90D7FB41" lastPageId="4" lastPageNumber="376" pageId="1" pageNumber="373">
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<subSubSection id="C367D3CBAC48FFA833985FCB95FAFA1D" box="[151,501,1507,1534]" pageId="1" pageNumber="373" type="nomenclature">
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<paragraph id="8BC28040AC48FFA833985FCB95FAFA1D" blockId="1.[151,501,1507,1570]" box="[151,501,1507,1534]" pageId="1" pageNumber="373">
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<heading id="D08A372CAC48FFA833985FCB95FAFA1D" bold="true" box="[151,501,1507,1534]" fontSize="11" level="1" pageId="1" pageNumber="373" reason="1">
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<emphasis id="B9095C52AC48FFA833985FCB95FAFA1D" bold="true" box="[151,501,1507,1534]" pageId="1" pageNumber="373">
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<taxonomicName id="4C7DFBC3AC48FFA833985FCB95A3FA1D" authority="Revkova, 2020" authorityName="Revkova" authorityYear="2020" box="[151,428,1507,1534]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="1" pageNumber="373" phylum="Nematoda" rank="species" species="siwaschensis" status="sp. nov.">
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<emphasis id="B9095C52AC48FFA833985FCB95A3FA1D" bold="true" box="[151,428,1507,1534]" italics="true" pageId="1" pageNumber="373">Theristus siwaschensis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A23AE129AC48FFA832BC5FCC95FAFA1D" box="[435,501,1508,1534]" pageId="1" pageNumber="373" rank="species">sp. n.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C367D3CBAC48FFA833985C20957DF9C1" box="[151,370,1544,1570]" pageId="1" pageNumber="373" type="description">
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<paragraph id="8BC28040AC48FFA833985C20957DF9C1" blockId="1.[151,501,1507,1570]" box="[151,370,1544,1570]" pageId="1" pageNumber="373">
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<figureCitation id="13469CC5AC48FFA833985C2094FAF9C1" box="[151,245,1544,1570]" captionStart="FIGURE 1" captionStartId="2.[151,250,1943,1967]" captionTargetBox="[191,1386,186,1917]" captionTargetId="figure-16@2.[178,1409,181,1919]" captionTargetPageId="2" captionText="FIGURE 1. Theristus siwaschensis sp. n. Holotype male and paratype female.A. tail end of male, B. male head, C. female head, D. general view of male, E. general view of female, F. vulval region, G. vulval region and egg in paratype female, H. spicule and gubernaculum. Scale bar: D, E = 100 μm; A = 50 μm; G = 40 μm; B, C, F, H = 20 μm." figureDoi="http://doi.org/10.5281/zenodo.4283577" httpUri="https://zenodo.org/record/4283577/files/figure.png" pageId="1" pageNumber="373">Figure 1</figureCitation>
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,
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<figureCitation id="13469CC5AC48FFA8320C5C20951BF9C1" box="[259,276,1544,1570]" captionStart="FIGURE 2" captionStartId="3.[151,250,1787,1811]" captionTargetBox="[151,1436,181,1763]" captionTargetId="figure-30@3.[151,1436,181,1763]" captionTargetPageId="3" captionText="FIGURE 2. Theristus siwaschensis sp. n. A. general view of male, B. amphid of female, C. amphid of male, D. precloacal papillae, E. general view of female, F. vulval region, G. spicule of paratype male 1, H. spicule of male. Scale bar: A, E = 100 μm; B, C, E, F, H = 20 μm; G = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.4283580" httpUri="https://zenodo.org/record/4283580/files/figure.png" pageId="1" pageNumber="373">2</figureCitation>
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;
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<tableCitation id="C6FFB5FBAC48FFA8322F5C20957DF9C1" box="[288,370,1544,1570]" captionStart="TABLE 1" captionStartId="4.[151,239,1232,1256]" captionTargetPageId="4" captionText="TABLE 1. Morphometrics of Theristus siwaschensis sp. n. (Measurements in μm, expect ratios of de Man: a, b, c, c’)" httpUri="http://table.plazi.org/id/DF02D0C8AC4DFFAD33985EF8918EFB0A" pageId="1" pageNumber="373" tableUuid="DF02D0C8AC4DFFAD33985EF8918EFB0A">Table 1</tableCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="C367D3CBAC48FFA833985C789743F8FC" pageId="1" pageNumber="373" type="materials_examined">
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<paragraph id="8BC28040AC48FFA833985C78903FF951" blockId="1.[151,1437,1616,2039]" pageId="1" pageNumber="373">
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<emphasis id="B9095C52AC48FFA833985C78958BF989" bold="true" box="[151,388,1616,1642]" pageId="1" pageNumber="373">Material examined:</emphasis>
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five males, six females.
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<typeStatus id="54C63EE2AC48FFA831AD5C789701F989" box="[674,782,1616,1642]" pageId="1" pageNumber="373" type="holotype">Holotype</typeStatus>
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. Male mounted on slide (FlN/BS-35), in glycerin-gelatin.
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<typeStatus id="54C63EE2AC48FFA833985C5D9507F96C" box="[151,264,1653,1679]" pageId="1" pageNumber="373" type="paratype">Paratypes</typeStatus>
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. Males, slides (FlN/BS-36 and FlN/BS-37); females, slides (FlN/BS-38–FlN/BS-42), in glycerin-gelatin. Males, slides (FlN/BS-43 and FlN/BS-44); female, slide (FlN/BS-45), in glycerin.
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</paragraph>
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<paragraph id="8BC28040AC48FFA833C85C949743F8FC" blockId="1.[151,1437,1616,2039]" pageId="1" pageNumber="373">
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<emphasis id="B9095C52AC48FFA833C85C949563F935" bold="true" box="[199,364,1724,1750]" pageId="1" pageNumber="373">Type locality:</emphasis>
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The Sea of Azov,
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<collectingRegion id="49B94EA2AC48FFA831495C949694F935" box="[582,667,1724,1750]" country="Ukraine" name="Crimea" pageId="1" pageNumber="373">Crimea</collectingRegion>
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, Sivash Bay, depths
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<quantity id="4C852DA5AC48FFA830845C94900FF934" box="[907,1024,1724,1751]" metricMagnitude="-1" metricUnit="m" metricValue="4.5" metricValueMax="6.0" metricValueMin="3.0" pageId="1" pageNumber="373" unit="m" value="0.44999999999999996" valueMax="0.6" valueMin="0.3">0.3–0.6 m</quantity>
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,
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<taxonomicName id="4C7DFBC3AC48FFA837015C94909AF935" box="[1038,1173,1724,1750]" genus="Cladophora" higherTaxonomySource="GBIF" kingdom="Animalia" pageId="1" pageNumber="373" phylum="Mollusca" rank="genus">
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<emphasis id="B9095C52AC48FFA837015C94909AF935" box="[1038,1173,1724,1750]" italics="true" pageId="1" pageNumber="373">Cladophora</emphasis>
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</taxonomicName>
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algal mats and muddy sand sediments, water salinity
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<quantity id="4C852DA5AC48FFA8310E5CC8966DF919" box="[513,610,1759,1787]" metricMagnitude="-2" metricUnit="kg" metricValue="7.6" metricValueMax="7.7" metricValueMin="7.5" pageId="1" pageNumber="373" unit="g" value="76.0" valueMax="77.0" valueMin="75.0">75–77 g</quantity>
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̕
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<superScript id="7C082D08AC48FFA831685CF79670F90D" attach="left" box="[615,639,1759,1786]" fontSize="6" pageId="1" pageNumber="373">l–1</superScript>
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. Geographical coordinates
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<geoCoordinate id="EE49E687AC48FFA830CE5CC89069F918" box="[961,1126,1760,1787]" degrees="45" direction="north" minutes="31" orientation="latitude" pageId="1" pageNumber="373" precision="1" seconds="13.7" value="45.520473">45°31’13.7’’N</geoCoordinate>
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,
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<geoCoordinate id="EE49E687AC48FFA837795CC8911BF918" box="[1142,1300,1760,1787]" degrees="35" direction="east" minutes="11" orientation="longitude" pageId="1" pageNumber="373" precision="1" seconds="12.9" value="35.186916">35°11’12.9’’E</geoCoordinate>
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(
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<typeStatus id="54C63EE2AC48FFA836275CC8919FF918" box="[1320,1424,1760,1787]" pageId="1" pageNumber="373" type="holotype">holotype</typeStatus>
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);
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<geoCoordinate id="EE49E687AC48FFA833985D2C9534F8FC" box="[151,315,1796,1823]" degrees="45" direction="north" minutes="27" orientation="latitude" pageId="1" pageNumber="373" precision="1" seconds="19.5" value="45.455418">45°27’19.5’’N</geoCoordinate>
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,
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<geoCoordinate id="EE49E687AC48FFA832485D2C95E5F8FC" box="[327,490,1796,1823]" degrees="35" direction="east" minutes="13" orientation="longitude" pageId="1" pageNumber="373" precision="1" seconds="27.9" value="35.22442">35°13’27.9’’E</geoCoordinate>
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;
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<geoCoordinate id="EE49E687AC48FFA832FA5D2C9695F8FC" box="[501,666,1796,1823]" degrees="45" direction="north" minutes="37" orientation="latitude" pageId="1" pageNumber="373" precision="1" seconds="48.3" value="45.63008">45°37’48.3’’N</geoCoordinate>
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,
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<geoCoordinate id="EE49E687AC48FFA831A95D2C9747F8FC" box="[678,840,1796,1823]" degrees="35" direction="east" minutes="01" orientation="longitude" pageId="1" pageNumber="373" precision="1" seconds="54.8" value="35.031887">35°01’54.8’’E</geoCoordinate>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C367D3CBAC48FFA833C85D0097D6F8A1" box="[199,985,1832,1859]" pageId="1" pageNumber="373" type="etymology">
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<paragraph id="8BC28040AC48FFA833C85D0097D6F8A1" blockId="1.[151,1437,1616,2039]" box="[199,985,1832,1859]" pageId="1" pageNumber="373">
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<emphasis id="B9095C52AC48FFA833C85D009541F8A1" bold="true" box="[199,334,1832,1858]" pageId="1" pageNumber="373">Etymology.</emphasis>
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The species name
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<taxonomicName id="4C7DFBC3AC48FFA8312C5D0096BBF8A1" authorityName="Revkova" authorityYear="2020" box="[547,692,1832,1858]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="1" pageNumber="373" phylum="Nematoda" rank="species" species="siwaschensis">
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<emphasis id="B9095C52AC48FFA8312C5D0096BBF8A1" box="[547,692,1832,1858]" italics="true" pageId="1" pageNumber="373">siwaschensis</emphasis>
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</taxonomicName>
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refers to the
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<typeStatus id="54C63EE2AC48FFA830485D019778F8A0" box="[839,887,1833,1859]" pageId="1" pageNumber="373">type</typeStatus>
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locality.
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</paragraph>
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</subSubSection>
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<subSubSection id="C367D3CBAC48FFAD33C85D6494FFFCF6" lastPageId="4" lastPageNumber="376" pageId="1" pageNumber="373" type="description">
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<paragraph id="8BC28040AC48FFAD33C85D64912AFDFA" blockId="1.[151,1437,1616,2039]" lastBlockId="4.[151,1437,150,1186]" lastPageId="4" lastPageNumber="376" pageId="1" pageNumber="373">
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<emphasis id="B9095C52AC48FFA833C85D649593F885" bold="true" box="[199,412,1867,1894]" pageId="1" pageNumber="373">
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Description.
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<emphasis id="B9095C52AC48FFA8326E5D639593F885" bold="true" box="[353,412,1867,1894]" italics="true" pageId="1" pageNumber="373">Male</emphasis>
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</emphasis>
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. Body slender, about 1756–1916 μm long, almost uniform diameter except for pharyngeal and tail regions. Cuticle annulated, thickness 2 μm in the middle of body. Head blunt, labial region 7 (6–7) μm in height. Head with six setiform outer labial papillae, each about 3 μm long; 16 cephalic setae in one circle: 8 longer (15–18 μm) and 8 shorter (10–14 μm). Somatic setae 5–6 μm long, arranged irregularly along body. Amphidial fovea circular, 7 (6–7) μm in diameter, occupying about 26.9 (24.1–29.6) % of the corresponding body diameter; anterior margin of amphids 17–22 μm from anterior body end. Buccal cavity cup-shaped (12–15 μm wide), funnelshaped posterior half surrounded by pharynx. Pharynx muscular, almost cylindrical. Cardia elongate and conical, 17 (14–17) μm long. Nerve ring situated at 40 (40.3–43.4) % of pharynx length from anterior. Ventral gland and excretory pore not observed. Reproductive system diorchic with outstretched testes. Anterior testis situated to left of and smaller posterior testis to right of intestine. Spicules large, 2.1 (1.5–2.4) of the anal body diameter, complex in shape; twisted and curved at middle part with a poorly development capitulum. Gubernaculum consists of two parts: a distal well-cuticularised claw-shaped formation (12–14 μm long) with two minute ridges (
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<figureCitation id="13469CC5AC4DFFAD37BF5B479103FE6A" box="[1200,1292,367,393]" captionStart="FIGURE 2" captionStartId="3.[151,250,1787,1811]" captionTargetBox="[151,1436,181,1763]" captionTargetId="figure-30@3.[151,1436,181,1763]" captionTargetPageId="3" captionText="FIGURE 2. Theristus siwaschensis sp. n. A. general view of male, B. amphid of female, C. amphid of male, D. precloacal papillae, E. general view of female, F. vulval region, G. spicule of paratype male 1, H. spicule of male. Scale bar: A, E = 100 μm; B, C, E, F, H = 20 μm; G = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.4283580" httpUri="https://zenodo.org/record/4283580/files/figure.png" pageId="4" pageNumber="376">Fig. 2H</figureCitation>
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); a proximal thin fitting plate and relatively long and narrow dorsal apophyses. In one male spines on the distal “claw” absent (
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<figureCitation id="13469CC5AC4DFFAD33AF5B9F94F6FE32" box="[160,249,439,465]" captionStart="FIGURE 2" captionStartId="3.[151,250,1787,1811]" captionTargetBox="[151,1436,181,1763]" captionTargetId="figure-30@3.[151,1436,181,1763]" captionTargetPageId="3" captionText="FIGURE 2. Theristus siwaschensis sp. n. A. general view of male, B. amphid of female, C. amphid of male, D. precloacal papillae, E. general view of female, F. vulval region, G. spicule of paratype male 1, H. spicule of male. Scale bar: A, E = 100 μm; B, C, E, F, H = 20 μm; G = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.4283580" httpUri="https://zenodo.org/record/4283580/files/figure.png" pageId="4" pageNumber="376">Fig. 2G</figureCitation>
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). Six medioventral, precloacal supplementary papillae, appearing as very minute tubercles with thin canals. Precloacal setae 4 μm long, located at a distance of 12 (14–15) μm from cloaca. Tail elongated, 5.1 (4.2–6.1) of the anal body diameter; conical in shape with thin and short setae, 4–6 μm long. Two caudal glands present.
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</paragraph>
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<caption id="DF02D0C8AC4BFFAB33985DBF900DF81B" ID-DOI="http://doi.org/10.5281/zenodo.4283577" ID-Zenodo-Dep="4283577" httpUri="https://zenodo.org/record/4283577/files/figure.png" pageId="2" pageNumber="374" startId="2.[151,250,1943,1967]" targetBox="[191,1386,186,1917]" targetPageId="2">
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<paragraph id="8BC28040AC4BFFAB33985DBF900DF81B" blockId="2.[151,1437,1943,2040]" pageId="2" pageNumber="374">
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<emphasis id="B9095C52AC4BFFAB33985DBF9503F84C" bold="true" box="[151,268,1943,1967]" pageId="2" pageNumber="374">FIGURE 1</emphasis>
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||
.
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<taxonomicName id="4C7DFBC3AC4BFFAB32185DB095F2F853" authority="Revkova, 2020" authorityName="Revkova" authorityYear="2020" box="[279,509,1944,1968]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="2" pageNumber="374" phylum="Nematoda" rank="species" species="siwaschensis" status="sp. nov.">
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<emphasis id="B9095C52AC4BFFAB32185DB095F2F853" box="[279,509,1944,1968]" italics="true" pageId="2" pageNumber="374">Theristus siwaschensis</emphasis>
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</taxonomicName>
|
||
<emphasis id="B9095C52AC4BFFAB310D5DB09635F853" bold="true" box="[514,570,1944,1968]" pageId="2" pageNumber="374">
|
||
<taxonomicNameLabel id="A23AE129AC4BFFAB310D5DB09635F853" box="[514,570,1944,1968]" pageId="2" pageNumber="374" rank="species">sp. n.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Holotype male and paratype female. A. tail end of male, B. male head, C. female head, D. general view of male, E. general view of female, F. vulval region, G. vulval region and egg in paratype female, H. spicule and gubernaculum. Scale bar: D, E = 100 μm; A = 50 μm; G = 40 μm; B, C, F, H = 20 μm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF02D0C8AC4AFFAA33985CD39628F8BF" ID-DOI="http://doi.org/10.5281/zenodo.4283580" ID-Zenodo-Dep="4283580" httpUri="https://zenodo.org/record/4283580/files/figure.png" pageId="3" pageNumber="375" startId="3.[151,250,1787,1811]" targetBox="[151,1436,181,1763]" targetPageId="3">
|
||
<paragraph id="8BC28040AC4AFFAA33985CD39628F8BF" blockId="3.[151,1436,1787,1884]" pageId="3" pageNumber="375">
|
||
<emphasis id="B9095C52AC4AFFAA33985CD39500F8F0" bold="true" box="[151,271,1787,1811]" pageId="3" pageNumber="375">FIGURE 2</emphasis>
|
||
.
|
||
<taxonomicName id="4C7DFBC3AC4AFFAA32125CD39608F8F0" authority="Revkova, 2020" authorityName="Revkova" authorityYear="2020" box="[285,519,1787,1811]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="3" pageNumber="375" phylum="Nematoda" rank="species" species="siwaschensis" status="sp. nov.">
|
||
<emphasis id="B9095C52AC4AFFAA32125CD39608F8F0" box="[285,519,1787,1811]" italics="true" pageId="3" pageNumber="375">Theristus siwaschensis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B9095C52AC4AFFAA31005CD39644F8F0" bold="true" box="[527,587,1787,1811]" pageId="3" pageNumber="375">
|
||
<taxonomicNameLabel id="A23AE129AC4AFFAA31005CD39644F8F0" box="[527,587,1787,1811]" pageId="3" pageNumber="375" rank="species">sp. n.</taxonomicNameLabel>
|
||
</emphasis>
|
||
A. general view of male, B. amphid of female, C. amphid of male, D. precloacal papillae, E. general view of female, F. vulval region, G. spicule of paratype male 1, H. spicule of male. Scale bar: A, E = 100 μm; B, C, E, F, H = 20 μm; G = 10 μm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BC28040AC4DFFAD33C8580A94FFFCF6" blockId="4.[151,1437,150,1186]" pageId="4" pageNumber="376">
|
||
<emphasis id="B9095C52AC4DFFAD33C8580A9511FDDE" bold="true" box="[199,286,546,573]" italics="true" pageId="4" pageNumber="376">Female</emphasis>
|
||
. Similar to males in most features. Amphidial fovea 6 (5–7) μm in diameter, occupying about 23.1 (20–28) % of the corresponding body diameter. Reproductive system monodelphic. Ovary outstretched, on left of intestine. Vulva transverse, located at 74.1 (68.9–75.4) % from the anterior end. Vaginal canal is very long (55–64 μm), consisting from two parts: thin (30–39 μm long) and well muscularized (22–25 μm long) (
|
||
<figureCitation id="13469CC5AC4DFFAD37DC58A79122FD4A" box="[1235,1325,655,681]" captionStart="FIGURE 1" captionStartId="2.[151,250,1943,1967]" captionTargetBox="[191,1386,186,1917]" captionTargetId="figure-16@2.[178,1409,181,1919]" captionTargetPageId="2" captionText="FIGURE 1. Theristus siwaschensis sp. n. Holotype male and paratype female.A. tail end of male, B. male head, C. female head, D. general view of male, E. general view of female, F. vulval region, G. vulval region and egg in paratype female, H. spicule and gubernaculum. Scale bar: D, E = 100 μm; A = 50 μm; G = 40 μm; B, C, F, H = 20 μm." figureDoi="http://doi.org/10.5281/zenodo.4283577" httpUri="https://zenodo.org/record/4283577/files/figure.png" pageId="4" pageNumber="376">Fig. 1G</figureCitation>
|
||
;
|
||
<figureCitation id="13469CC5AC4DFFAD363558A79180FD4A" box="[1338,1423,655,681]" captionStart="FIGURE 2" captionStartId="3.[151,250,1787,1811]" captionTargetBox="[151,1436,181,1763]" captionTargetId="figure-30@3.[151,1436,181,1763]" captionTargetPageId="3" captionText="FIGURE 2. Theristus siwaschensis sp. n. A. general view of male, B. amphid of female, C. amphid of male, D. precloacal papillae, E. general view of female, F. vulval region, G. spicule of paratype male 1, H. spicule of male. Scale bar: A, E = 100 μm; B, C, E, F, H = 20 μm; G = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.4283580" httpUri="https://zenodo.org/record/4283580/files/figure.png" pageId="4" pageNumber="376">Fig. 2F</figureCitation>
|
||
). Two ventral glands surrounding the vulva. Only one female (FlN/BS-42) carry one big egg 93×25 μm (
|
||
<figureCitation id="13469CC5AC4DFFAD3637589B9181FD2E" box="[1336,1422,691,717]" captionStart="FIGURE 1" captionStartId="2.[151,250,1943,1967]" captionTargetBox="[191,1386,186,1917]" captionTargetId="figure-16@2.[178,1409,181,1919]" captionTargetPageId="2" captionText="FIGURE 1. Theristus siwaschensis sp. n. Holotype male and paratype female.A. tail end of male, B. male head, C. female head, D. general view of male, E. general view of female, F. vulval region, G. vulval region and egg in paratype female, H. spicule and gubernaculum. Scale bar: D, E = 100 μm; A = 50 μm; G = 40 μm; B, C, F, H = 20 μm." figureDoi="http://doi.org/10.5281/zenodo.4283577" httpUri="https://zenodo.org/record/4283577/files/figure.png" pageId="4" pageNumber="376">Fig. 1F</figureCitation>
|
||
). Tail elongated, 5.8 (4.5–6.1) of the anal body diameter, conical in shape, gradually narrowing. Two caudal glands present.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C367D3CBAC4DFFAD33C8593690D7FB41" pageId="4" pageNumber="376" type="diagnosis">
|
||
<paragraph id="8BC28040AC4DFFAD33C8593690D7FB41" blockId="4.[151,1437,150,1186]" pageId="4" pageNumber="376">
|
||
<emphasis id="B9095C52AC4DFFAD33C8593695C3FCDB" bold="true" box="[199,460,798,824]" pageId="4" pageNumber="376">Differential diagnosis.</emphasis>
|
||
In accordance with the new key to species by
|
||
<bibRefCitation id="EFECFDB1AC4DFFAD30CB593790A2FCDA" author="Tu, N. D. & Gagarin, V. G." box="[964,1197,799,825]" pageId="4" pageNumber="376" pagination="266 - 274" refId="ref6467" refString="Tu, N. D. & Gagarin, V. G. (2017) Free-living nematodes from mangrove forest in the Yen River estuary (Vietnam). Inland Water Biology, 10 (3), 266 - 274. https: // doi. org / 10.1134 / S 1995082917030129" type="journal article" year="2017">Tu & Gagarin (2017)</bibRefCitation>
|
||
<taxonomicName id="4C7DFBC3AC4DFFAD37BD593794BAFCBF" authority="Revkova, 2020" authorityName="Revkova" authorityYear="2020" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="4" pageNumber="376" phylum="Nematoda" rank="species" species="siwaschensis" status="sp. nov.">
|
||
<emphasis id="B9095C52AC4DFFAD37BD593794BAFCBF" italics="true" pageId="4" pageNumber="376">Theristus siwaschensis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B9095C52AC4DFFAD33B3596B94F2FCBE" bold="true" box="[188,253,835,861]" pageId="4" pageNumber="376">
|
||
<taxonomicNameLabel id="A23AE129AC4DFFAD33B3596B94F2FCBE" box="[188,253,835,861]" pageId="4" pageNumber="376" rank="species">sp. n.</taxonomicNameLabel>
|
||
</emphasis>
|
||
is morphologically closest to
|
||
<taxonomicName id="4C7DFBC3AC4DFFAD315E596B9028FCBE" authority="Schuurmans Stekhoven, 1935" authorityName="Schuurmans Stekhoven" authorityYear="1935" box="[593,1063,834,861]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="4" pageNumber="376" phylum="Nematoda" rank="species" species="flevensis">
|
||
<emphasis id="B9095C52AC4DFFAD315E596B96C2FCBE" box="[593,717,835,861]" italics="true" pageId="4" pageNumber="376">T. flevensis</emphasis>
|
||
Schuurmans Stekhoven, 1935
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C7DFBC3AC4DFFAD373C596B9197FCBE" authority="Timm, 1952" authorityName="Timm" authorityYear="1952" box="[1075,1432,834,861]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="4" pageNumber="376" phylum="Nematoda" rank="species" species="parambronensis">
|
||
<emphasis id="B9095C52AC4DFFAD373C596B910BFCBE" box="[1075,1284,835,861]" italics="true" pageId="4" pageNumber="376">T. parambronensis</emphasis>
|
||
<bibRefCitation id="EFECFDB1AC4DFFAD3604596B9197FCBE" author="Timm, R. W." box="[1291,1432,834,861]" pageId="4" pageNumber="376" refId="ref6359" refString="Timm, R. W. (1952) A survey of the marine Nematodes of Chesapeake Bay, Maryland. Chesapeake Biological Laboratory Publication Series / Contribution Series 95. Chesapeake Biological Laboratory, Solomons Island, Maryland, 70 pp." type="book" year="1952">Timm, 1952</bibRefCitation>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C7DFBC3AC4DFFAD3398594F9608FC62" authority="Gerlach, 1954" authorityName="Gerlach" authorityYear="1954" box="[151,519,870,897]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="4" pageNumber="376" phylum="Nematoda" rank="species" species="macroflevensis">
|
||
<emphasis id="B9095C52AC4DFFAD3398594F9554FC62" box="[151,347,871,897]" italics="true" pageId="4" pageNumber="376">T. macroflevensis</emphasis>
|
||
<bibRefCitation id="EFECFDB1AC4DFFAD326B594F9608FC62" author="Gerlach, S. A." box="[356,519,870,897]" pageId="4" pageNumber="376" pagination="135 - 143" refId="ref5349" refString="Gerlach, S. A. (1954) Freilebende Nematoden aus der Lagoa Radrigo de freitas (Rio de Janero). Zoologischer Anzeiger, 153, 135 - 143." type="journal article" year="1954">Gerlach, 1954</bibRefCitation>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C7DFBC3AC4DFFAD311C594F977CFC62" authority="Gerlach, 1955" authorityName="Gerlach" authorityYear="1955" box="[531,883,870,897]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="4" pageNumber="376" phylum="Nematoda" rank="species" species="metaflevensis">
|
||
<emphasis id="B9095C52AC4DFFAD311C594F96C8FC62" box="[531,711,871,897]" italics="true" pageId="4" pageNumber="376">T. metaflevensis</emphasis>
|
||
<bibRefCitation id="EFECFDB1AC4DFFAD31DF594F977CFC62" author="Gerlach, S." box="[720,883,870,897]" pageId="4" pageNumber="376" pagination="249 - 303" refId="ref5381" refString="Gerlach, S. (1955) Zur Kenntnis der freilebenden marinen Nematoden von san Salvador. Zeitschrift fur wissenschaftliche Zoologie, 158, 249 - 303." type="journal article" year="1955">Gerlach, 1955</bibRefCitation>
|
||
</taxonomicName>
|
||
. However, new species differs from them by the structure of reproduction system of females: vaginal canal is very long, consisting of thin and well muscularized parts; presence of 16 cephalic setae; large spicules and a poorly development capitulum.
|
||
<taxonomicName id="4C7DFBC3AC4DFFAD377559879128FC2A" authority="Revkova, 2020" authorityName="Revkova" authorityYear="2020" box="[1146,1319,943,969]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="4" pageNumber="376" phylum="Nematoda" rank="species" species="siwaschensis" status="sp. nov.">
|
||
<emphasis id="B9095C52AC4DFFAD377559879128FC2A" box="[1146,1319,943,969]" italics="true" pageId="4" pageNumber="376">T. siwaschensis</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B9095C52AC4DFFAD362159879162FC2A" bold="true" box="[1326,1389,943,969]" pageId="4" pageNumber="376">
|
||
<taxonomicNameLabel id="A23AE129AC4DFFAD362159879162FC2A" box="[1326,1389,943,969]" pageId="4" pageNumber="376" rank="species">sp. n.</taxonomicNameLabel>
|
||
</emphasis>
|
||
differs from
|
||
<taxonomicName id="4C7DFBC3AC4DFFAD320A59FB958FFC0E" authorityName="Schuurmans Stekhoven" authorityYear="1935" box="[261,384,979,1005]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="4" pageNumber="376" phylum="Nematoda" rank="species" species="flevensis">
|
||
<emphasis id="B9095C52AC4DFFAD320A59FB958FFC0E" box="[261,384,979,1005]" italics="true" pageId="4" pageNumber="376">T. flevensis</emphasis>
|
||
</taxonomicName>
|
||
(including new data) by having longer spicules (71–77 μm
|
||
<emphasis id="B9095C52AC4DFFAD371659FB903FFC0F" box="[1049,1072,979,1004]" italics="true" pageId="4" pageNumber="376">vs</emphasis>
|
||
. 34–65 μm); new species differs from
|
||
<taxonomicName id="4C7DFBC3AC4DFFAD33DB59DF95ABFBF2" authorityName="Timm" authorityYear="1952" box="[212,420,1015,1041]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="4" pageNumber="376" phylum="Nematoda" rank="species" species="parambronensis">
|
||
<emphasis id="B9095C52AC4DFFAD33DB59DF95ABFBF2" box="[212,420,1015,1041]" italics="true" pageId="4" pageNumber="376">T. parambronensis</emphasis>
|
||
</taxonomicName>
|
||
by having larger body (1487–1916 μm
|
||
<emphasis id="B9095C52AC4DFFAD306F59DF9778FBF3" box="[864,887,1015,1040]" italics="true" pageId="4" pageNumber="376">vs</emphasis>
|
||
. 790–1350 μm) and position of vulva (68.9–75.4 %
|
||
<emphasis id="B9095C52AC4DFFAD33B95E3394C2FBD7" box="[182,205,1051,1076]" italics="true" pageId="4" pageNumber="376">vs</emphasis>
|
||
. 83.4 %); it differs from
|
||
<taxonomicName id="4C7DFBC3AC4DFFAD32E45E3396A0FBD6" authorityName="Gerlach" authorityYear="1954" box="[491,687,1051,1077]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="4" pageNumber="376" phylum="Nematoda" rank="species" species="macroflevensis">
|
||
<emphasis id="B9095C52AC4DFFAD32E45E3396A0FBD6" box="[491,687,1051,1077]" italics="true" pageId="4" pageNumber="376">T. macroflevensis</emphasis>
|
||
</taxonomicName>
|
||
by shorter somatic setae (5–6 μm
|
||
<emphasis id="B9095C52AC4DFFAD37395E339042FBD7" box="[1078,1101,1051,1076]" italics="true" pageId="4" pageNumber="376">vs</emphasis>
|
||
. 30 μm) and presence of pre-cloacal supplements. The new species differs from
|
||
<taxonomicName id="4C7DFBC3AC4DFFAD31D85E179785FBBA" authorityName="Gerlach" authorityYear="1955" box="[727,906,1087,1113]" class="Adenophorea" family="Monhysteridae" genus="Theristus" kingdom="Animalia" order="Monhysterida" pageId="4" pageNumber="376" phylum="Nematoda" rank="species" species="metaflevensis">
|
||
<emphasis id="B9095C52AC4DFFAD31D85E179785FBBA" box="[727,906,1087,1113]" italics="true" pageId="4" pageNumber="376">T. metaflevensis</emphasis>
|
||
</taxonomicName>
|
||
by having longer cephalic setae (10–18 μm
|
||
<emphasis id="B9095C52AC4DFFAD36715E17919AFBBB" box="[1406,1429,1087,1112]" italics="true" pageId="4" pageNumber="376">vs</emphasis>
|
||
.
|
||
<specimenCount id="9D7B4BC9AC4DFFAD33985E4B94A6FB9E" box="[151,169,1123,1149]" pageId="4" pageNumber="376" type="female">♀</specimenCount>
|
||
9 μm and ³11–14 μm), smaller amphidial fovea (5–7 μm
|
||
<emphasis id="B9095C52AC4DFFAD30205E4B9742FB9F" box="[815,845,1123,1148]" italics="true" pageId="4" pageNumber="376">vs.</emphasis>
|
||
9 μm), position of vulva (68.9–75.4 %
|
||
<emphasis id="B9095C52AC4DFFAD360B5E4B9114FB9F" box="[1284,1307,1123,1148]" italics="true" pageId="4" pageNumber="376">vs</emphasis>
|
||
. 83–87 %), presence of precloacal supplements and large value of de Man’s index “c” (8.7–10.2
|
||
<emphasis id="B9095C52AC4DFFAD37415EAF906AFB43" box="[1102,1125,1159,1184]" italics="true" pageId="4" pageNumber="376">vs</emphasis>
|
||
. 6.7–6.8).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |