214 lines
24 KiB
XML
214 lines
24 KiB
XML
<document id="E3D04F787A78682556AF5B6415AB96F8" ID-DOI="10.11646/zootaxa.3609.3.2" ID-GBIF-Dataset="fd53bb53-a862-4a33-9745-a4aedd5e7e26" ID-ISSN="1175-5326" ID-Zenodo-Dep="216636" ID-ZooBank="966290AA-52B8-4239-8170-0487C3F0F9A6" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460572029639" checkinUser="plazi" docAuthor="Leduc, Daniel & Verschelde, Dominick" docDate="2013" docId="C11587BA671CED6444A2FE9C3ECAF8FF" docLanguage="en" docName="zt03609p290.pdf" docOrigin="Zootaxa 3609 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Pseudonchus Cobb 1920, sp. n." docType="treatment" docVersion="8" lastPageNumber="284" masterDocId="3D2CFFC26716ED6E4435FFC23C3BFF86" masterDocTitle="One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean" masterLastPageNumber="290" masterPageNumber="274" pageNumber="284" updateTime="1698322345233" updateUser="plazi">
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<mods:mods id="338797827090EB7D5C29F7DDE6CDF83F" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="FF0CF44CB6CD38AEFC4317A8E41F4020">
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<mods:title id="71C630EDB8F1AEB129B2F20DE187954A">One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean</mods:title>
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</mods:titleInfo>
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<mods:name id="5EF64B9585E6972D60DE456A83FEE9AA" type="personal">
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<mods:role id="DD990C0C521D44B1AC42433D6631BED9">
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<mods:roleTerm id="8989CADBBD11677A6BEB2562353E97F1">Author</mods:roleTerm>
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<mods:namePart id="7EE5C15385AD6C1FECC6F3C041CE8056">Leduc, Daniel</mods:namePart>
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</mods:name>
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<mods:name id="EE256A9C646401C7F9B8F5D9811DBD3A" type="personal">
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<mods:role id="D8697689F53937D415C587DF20BFF5CC">
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<mods:roleTerm id="1CEB8ED8F720FD11FBAD8F549F1EDC6B">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="81A1B816A94E2CE354C8975ED208A94D">Verschelde, Dominick</mods:namePart>
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</mods:name>
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<mods:typeOfResource id="CA6D675FBA83C0FB5619B13963CB8563">text</mods:typeOfResource>
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<mods:title id="14FCF99E198A06FFD3C6D6BD72A9014D">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="FE7F7FCDE8487B4D6DED3238888E1A99">
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<mods:date id="9472F8F2BBAD641DC14F907DB32B1CBC">2013</mods:date>
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<mods:detail id="761F3DE13ADDB052A0B75899F30FC199" type="volume">
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<mods:number id="DAD70CC5AFEFCF033C4AF10621429EDE">3609</mods:number>
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<mods:detail id="3C45C38EA95252A051640F5C8A716412" type="issue">
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<mods:number id="C5C1B66A229AD98EB3ADC36893CF06F5">3</mods:number>
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<mods:start id="1547423093CC6CB4565D7525D70E7AAE">274</mods:start>
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<mods:end id="877F138812026B1CA331E1B1A8D52AC1">290</mods:end>
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<mods:classification id="FAAF239246172AC8EA1802521E3DEF86">journal article</mods:classification>
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<mods:identifier id="51CCD53FCE750E38139C73B3E1B83A52" type="DOI">10.11646/zootaxa.3609.3.2</mods:identifier>
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<mods:identifier id="3559527C69AA8B0BB7C3AC80DA39955E" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="181939A62D1C7EB8C612AA9561DEF2F5" type="Zenodo-Dep">216636</mods:identifier>
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<mods:identifier id="F988FB8229AC14A7CE49BC667E5AA216" type="ZooBank">966290AA-52B8-4239-8170-0487C3F0F9A6</mods:identifier>
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</mods:mods>
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<treatment id="C11587BA671CED6444A2FE9C3ECAF8FF" ID-DOI="http://doi.org/10.5281/zenodo.5661823" ID-GBIF-Taxon="119559033" ID-Zenodo-Dep="5661823" LSID="urn:lsid:plazi:treatment:C11587BA671CED6444A2FE9C3ECAF8FF" httpUri="http://treatment.plazi.org/id/C11587BA671CED6444A2FE9C3ECAF8FF" lastPageNumber="284" pageId="10" pageNumber="284">
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<subSubSection id="01A66527671CED6444A2FE9C3D50FE5A" pageId="10" pageNumber="284" type="nomenclature">
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<paragraph id="490336AC671CED6444A2FE9C3E1FFEFE" blockId="10.[151,548,350,376]" box="[151,548,350,376]" pageId="10" pageNumber="284">
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<heading id="124B81C0671CED6444A2FE9C3E1FFEFE" bold="true" box="[151,548,350,376]" fontSize="11" level="1" pageId="10" pageNumber="284" reason="1">
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<emphasis id="7BC8EABE671CED6444A2FE9C3E1FFEFE" bold="true" box="[151,548,350,376]" pageId="10" pageNumber="284">
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Genus
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<taxonomicName id="8EBC4D2F671CED6444DBFE9C3E1FFEFE" authority="Cobb, 1920" authorityName="Cobb" authorityYear="1920" box="[238,548,350,376]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="genus">
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<emphasis id="7BC8EABE671CED6444DBFE9C3DB4FEFE" bold="true" box="[238,399,350,376]" italics="true" pageId="10" pageNumber="284">Pseudonchus</emphasis>
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Cobb, 1920
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</taxonomicName>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="490336AC671CED6444A2FE5D3D50FE5A" blockId="10.[151,485,415,476]" pageId="10" pageNumber="284">
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<emphasis id="7BC8EABE671CED6444A2FE5D3DDEFE3E" bold="true" box="[151,485,415,440]" pageId="10" pageNumber="284">
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<taxonomicName id="8EBC4D2F671CED6444A2FE5D3DA4FE3E" box="[151,415,415,440]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="virginiae" status="sp. nov.">
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<emphasis id="7BC8EABE671CED6444A2FE5D3DA4FE3E" bold="true" box="[151,415,415,440]" italics="true" pageId="10" pageNumber="284">Pseudonchus virginiae</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="60FB57C5671CED644590FE623DDEFE3E" box="[421,485,416,440]" pageId="10" pageNumber="284" rank="species">sp. n.</taxonomicNameLabel>
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</emphasis>
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(
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<figureCitation id="D1872A29671CED6444AAFE063D38FE5A" box="[159,259,452,476]" captionStart-0="FIGURE 5" captionStart-1="FIGURE 6" captionStartId-0="11.[151,250,1916,1939]" captionStartId-1="12.[151,250,1963,1986]" captionTargetBox-0="[160,1429,214,1878]" captionTargetBox-1="[214,1363,215,1922]" captionTargetId-0="figure@11.[151,1436,195,1895]" captionTargetId-1="figure@12.[206,1374,193,1938]" captionTargetPageId-0="11" captionTargetPageId-1="12" captionText-0="FIGURE 5. Pseudonchus virginiae sp. n. A: Entire male in cross-section view; B: lateral view of male posterior region; C: female reproductive system. Scale bar: A = 150 Μm; B and C = 53 Μm." captionText-1="FIGURE 6. Pseudonchus virginiae sp. n. A: Lateral view of male anterior region; B: lateral view of male head showing buccal cavity; C: lateral view of female head; D: female tail. Scale bar = 30 Μm." httpUri-0="https://zenodo.org/record/216641/files/figure.png" httpUri-1="https://zenodo.org/record/216642/files/figure.png" pageId="10" pageNumber="284">Figs 5–6</figureCitation>
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,
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<tableCitation id="043E0317671CED64453AFE063D5BFE5A" box="[271,352,452,476]" captionStart="TABLE 1" captionStartId="4.[151,235,447,468]" captionTargetBox="[159,1351,640,1737]" captionTargetPageId="4" captionText="TABLE 1. Morphometrics (Μm) of Onepunema enigmaticum gen. et sp. n. and Pseudonchus virginiae sp. n. (a, body length / maximum body diameter; abd, anal body diameter; b, body length / pharynx length; c, body length / tail length; cbd, corresponding body diameter; V, vulva distance from anterior end of body; % V, V / total body length)." httpUri="http://table.plazi.org/id/1DC366246712ED6A44A2FE7D38A3FD94" pageId="10" pageNumber="284" tableUuid="1DC366246712ED6A44A2FE7D38A3FD94">Table 1</tableCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="01A66527671CED6444A2FDC53EAFFD0B" pageId="10" pageNumber="284" type="materials_examined">
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<paragraph id="490336AC671CED6444A2FDC53EAFFD0B" blockId="10.[151,1437,518,1913]" pageId="10" pageNumber="284">
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<emphasis id="7BC8EABE671CED6444A2FDC53D64FD99" bold="true" box="[151,351,518,543]" pageId="10" pageNumber="284">
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<typeStatus id="9607880E671CED6444A2FDC53CE9FD99" box="[151,210,519,543]" pageId="10" pageNumber="284">Type</typeStatus>
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sepcimens.
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</emphasis>
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<typeStatus id="9607880E671CED644559FDC43DEFFD98" box="[364,468,518,542]" pageId="10" pageNumber="284" type="holotype">Holotype</typeStatus>
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male, collected
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<date id="3D02106C671CED6446A8FDC43F03FD98" box="[669,824,518,542]" pageId="10" pageNumber="284" value="2007-04-06">6 April 2007</date>
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(NIWA cruise TAN0705, station 45), southwestern Chatham Rise (
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<geoCoordinate id="2C88506B671CED64457DFDE83D87FDC4" box="[328,444,554,578]" direction="south" orientation="latitude" pageId="10" pageNumber="284" precision="55" value="-44.485">44.485° S</geoCoordinate>
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,
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<geoCoordinate id="2C88506B671CED6445FEFDE83E74FDC4" box="[459,591,554,578]" direction="east" orientation="longitude" pageId="10" pageNumber="284" precision="55" value="177.141">177.141° E</geoCoordinate>
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), water depth:
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<quantity id="8E449B49671CED6446C9FDE83F6EFDC4" box="[764,853,554,578]" metricMagnitude="3" metricUnit="m" metricValue="1.24" pageId="10" pageNumber="284" unit="m" value="1240.0">1240 m</quantity>
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, sediment depth:
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<quantity id="8E449B49671CED644014FDE83841FDC4" box="[1057,1146,554,578]" metricMagnitude="-2" metricUnit="m" metricValue="3.0" metricValueMax="5.0" metricValueMin="1.0" pageId="10" pageNumber="284" unit="cm" value="3.0" valueMax="5.0" valueMin="1.0">1–5 cm</quantity>
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, silt/clay content: 82.9%, CaCO3 content: 38.5%, sediment chlorophyll
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<emphasis id="7BC8EABE671CED644681FD923EF9FDE1" box="[692,706,592,615]" italics="true" pageId="10" pageNumber="284">a</emphasis>
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concentration:
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<quantity id="8E449B49671CED64474EFD8C3F84FDE0" box="[891,959,590,614]" metricMagnitude="-11" metricUnit="kg" metricValue="3.2" pageId="10" pageNumber="284" unit="ng" value="32.0">32 ng</quantity>
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/gDW sediment (NIC 865971).
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<typeStatus id="9607880E671CED64410FFD8D39A7FDE1" box="[1338,1436,591,615]" pageId="10" pageNumber="284" type="paratype">Paratype</typeStatus>
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female, same data as
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<typeStatus id="9607880E671CED6445B3FDB73DD3FD0B" box="[390,488,629,653]" pageId="10" pageNumber="284" type="holotype">holotype</typeStatus>
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(NIC 865972).
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</paragraph>
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</subSubSection>
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<subSubSection id="01A66527671CED6444FCFD583FD4FD37" box="[201,1007,665,690]" pageId="10" pageNumber="284" type="etymology">
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<paragraph id="490336AC671CED6444FCFD583FD4FD37" blockId="10.[151,1437,518,1913]" box="[201,1007,665,690]" pageId="10" pageNumber="284">
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<emphasis id="7BC8EABE671CED6444FCFD583D6BFD34" bold="true" box="[201,336,666,690]" pageId="10" pageNumber="284">Etymology.</emphasis>
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The species is named in honour of Virginie Gagnon-Leduc.
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</paragraph>
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</subSubSection>
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<subSubSection id="01A66527671CED6444FCFD7F3DB2FABF" pageId="10" pageNumber="284" type="description">
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<paragraph id="490336AC671CED6444FCFD7F39BEFCC7" blockId="10.[151,1437,518,1913]" pageId="10" pageNumber="284">
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<emphasis id="7BC8EABE671CED6444FCFD7F3D60FD50" bold="true" box="[201,347,701,726]" pageId="10" pageNumber="284">Description.</emphasis>
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<emphasis id="7BC8EABE671CED644557FD7F3D98FD53" box="[354,419,701,725]" italics="true" pageId="10" pageNumber="284">Male.</emphasis>
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Stout cylindrical body, orange colour, tapering slightly towards head and tail. Cuticle thin (1–2 Μm thick), with slight transverse striations beginning posterior to cephalic setae to tail tip. No lateral differentiation. Eight rows of short (2 Μm), sparse somatic setae, each connected to a single, nucleated gland, mostly visible in anterior region. Chords with numerous, irregularly-shaped, dark orange inclusions (
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<figureCitation id="D1872A29671CED644135FCEB395AFCC7" box="[1280,1377,809,833]" captionStart="FIGURE 7" captionStartId="13.[151,250,1815,1838]" captionTargetBox="[163,1421,192,1777]" captionTargetId="figure@13.[151,1436,179,1795]" captionTargetPageId="13" captionText="FIGURE 7. Pseudonchus virginiae sp. n. Light micrographs. A: Lateral view of female head showing anterior portion of buccal cavity and teeth (optical section); B: lateral surface view of female head, showing multispiral amphideal fovea and cuticle striations; C: lateral surface view of male head showing cryptocircular amphideal fovea; D: lateral view of male middle body region showing lateral chord with granular inclusions. Scale bar: A, B and C = 20 Μm; D = 27 Μm." httpUri="https://zenodo.org/record/216643/files/figure.png" pageId="10" pageNumber="284">Figure 7</figureCitation>
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D).
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</paragraph>
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<paragraph id="490336AC671CED6444FCFC8F3FE4FBBB" blockId="10.[151,1437,518,1913]" pageId="10" pageNumber="284">Six setiform outer labial sensillae and four slightly longer cephalic setae. Inner labial sensillae not observed. Sub-cephalic setae absent. Cryptocircular amphideal fovea turning ventrally and smaller, circular amphideal aperture. Large buccal cavity divided into anterior protostomal and posterior metastomal regions, heavily cuticularised. Anterior margin of protostome with two rows of seven incurving teeth. Six larger teeth at junction of protostome and mesostome, two dorsally and four ventrosublaterally. Pharynx muscular, surrounding metostome, with small terminal bulb. One ventral and two dorsosublateral pharyngeal tubes. Nerve ring at 60% of pharynx length from anterior. Secretor-excretory system not observed. Cardia short.</paragraph>
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<paragraph id="490336AC671CED6444FCFB8B3D5BFB4B" blockId="10.[151,1437,518,1913]" pageId="10" pageNumber="284">Reproductive system monorchic with one anterior, outstretched testis situated ventrally relative to intestine. Short, arcuate spicules with well-developed capitulum. Short, slightly bent gubernaculum. Five short pre-cloacal setae, beginning 32 Μm anterior of cloaca, 27–33 Μm apart. Short conical tail, with three caudal glands and welldefined spinneret.</paragraph>
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<paragraph id="490336AC671CED6444F2FB1B3DB2FABF" blockId="10.[151,1437,518,1913]" pageId="10" pageNumber="284">
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<emphasis id="7BC8EABE671CED6444F2FB1B3D19FB77" box="[199,290,1241,1265]" italics="true" pageId="10" pageNumber="284">Female.</emphasis>
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Similar to male, but with greater body diameter and smaller, multispiral (1.3–1.4 turns) amphids. Reproductive system with two reflexed ovaries situated ventrally relative to intestine. Vulva located at almost two thirds of body length.
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</paragraph>
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</subSubSection>
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<subSubSection id="01A66527671CED6444FCFA873E46F9FB" pageId="10" pageNumber="284" type="diagnosis">
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<paragraph id="490336AC671CED6444FCFA87386FFA23" blockId="10.[151,1437,518,1913]" pageId="10" pageNumber="284">
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<emphasis id="7BC8EABE671CED6444FCFA873E25FAD8" bold="true" box="[201,542,1349,1374]" pageId="10" pageNumber="284">Diagnosis and relationships.</emphasis>
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<taxonomicName id="8EBC4D2F671CED64461DFA873F11FAD8" box="[552,810,1349,1374]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="virginiae" status="sp. nov.">
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<emphasis id="7BC8EABE671CED64461DFA873F11FAD8" box="[552,810,1349,1374]" italics="true" pageId="10" pageNumber="284">Pseudonchus virginiae</emphasis>
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</taxonomicName>
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<emphasis id="7BC8EABE671CED644701FA843F4CFAD8" bold="true" box="[820,887,1350,1374]" pageId="10" pageNumber="284">
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<taxonomicNameLabel id="60FB57C5671CED644701FA843F4CFAD8" box="[820,887,1350,1374]" pageId="10" pageNumber="284" rank="species">sp. n.</taxonomicNameLabel>
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</emphasis>
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is characterised by short cephalic setae, sexual dimorphism in amphid shape (cyptocircular amphideal fovea in males
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<emphasis id="7BC8EABE671CED6447FAFAA83FDDFA07" box="[975,998,1386,1409]" italics="true" pageId="10" pageNumber="284">vs</emphasis>
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multispiral in females), short arcuate spicules with capitulum, five regularly-spaced precloacal setae, and short conical tail.
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</paragraph>
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<paragraph id="490336AC671CED6444FCFA733E46F9FB" blockId="10.[151,1437,518,1913]" pageId="10" pageNumber="284">
|
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Nine valid
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<taxonomicName id="8EBC4D2F671CED644562FA733DD0FA4F" box="[343,491,1457,1481]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="genus">
|
||
<emphasis id="7BC8EABE671CED644562FA733DD0FA4F" box="[343,491,1457,1481]" italics="true" pageId="10" pageNumber="284">Pseudonchus</emphasis>
|
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</taxonomicName>
|
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species have been described so far, viz.,
|
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<taxonomicName id="8EBC4D2F671CED6447C9FA70394FFA4F" authority="Cobb, 1920" authorityName="Cobb" authorityYear="1920" box="[1020,1396,1457,1481]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="rotundicephalus">
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||
<emphasis id="7BC8EABE671CED6447C9FA7038EDFA4F" box="[1020,1238,1457,1481]" italics="true" pageId="10" pageNumber="284">P. rotundicephalus</emphasis>
|
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Cobb, 1920
|
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</taxonomicName>
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,
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<taxonomicName id="8EBC4D2F671CED6441B2FA703DC2FA6B" authority="De Coninck, 1942" authorityName="De Coninck" authorityYear="1942" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="symmetricus">
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<emphasis id="7BC8EABE671CED6441B2FA703D18FA68" italics="true" pageId="10" pageNumber="284">P. symmetricus</emphasis>
|
||
De Coninck, 1942
|
||
</taxonomicName>
|
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,
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<taxonomicName id="8EBC4D2F671CED644631FA153F1CFA6B" authority="Murphy, 1964" authorityName="Murphy" authorityYear="1964" box="[516,807,1493,1518]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="kosswigi">
|
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<emphasis id="7BC8EABE671CED644631FA153E44FA68" box="[516,639,1494,1518]" italics="true" pageId="10" pageNumber="284">P. kosswigi</emphasis>
|
||
Murphy, 1964
|
||
</taxonomicName>
|
||
a,
|
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<emphasis id="7BC8EABE671CED64470AFA153F9DFA68" box="[831,934,1495,1518]" italics="true" pageId="10" pageNumber="284">P. j e n s e n i</emphasis>
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Murphy, 1964b,
|
||
<taxonomicName id="8EBC4D2F671CED64405EFA153D7FF997" authority="(Gerlach, 1953) Warwick, 1969" authorityName="(Gerlach, 1953) Warwick" authorityYear="1969" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="gerlachi">
|
||
<emphasis id="7BC8EABE671CED64405EFA1538DFFA68" box="[1131,1252,1494,1518]" italics="true" pageId="10" pageNumber="284">P. gerlachi</emphasis>
|
||
(Gerlach, 1953) Warwick, 1969
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="8EBC4D2F671CED644565FA383EA2F997" authority="Warwick, 1969" authorityName="Warwick" authorityYear="1969" box="[336,665,1529,1553]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="deconincki">
|
||
<emphasis id="7BC8EABE671CED644565FA383DDEF997" box="[336,485,1529,1553]" italics="true" pageId="10" pageNumber="284">P. deconincki</emphasis>
|
||
Warwick, 1969
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="8EBC4D2F671CED644690FA383816F997" authority="Warwick, 1969" authorityName="Warwick" authorityYear="1969" box="[677,1069,1529,1553]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="northumbriensis">
|
||
<emphasis id="7BC8EABE671CED644690FA383F43F997" box="[677,888,1529,1553]" italics="true" pageId="10" pageNumber="284">P. northumbriensis</emphasis>
|
||
Warwick, 1969
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="8EBC4D2F671CED64400DFA3839A3F997" authority="Ward, 1974" authorityName="Ward" authorityYear="1974" box="[1080,1432,1529,1553]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="decempapillatus">
|
||
<emphasis id="7BC8EABE671CED64400DFA383937F997" box="[1080,1292,1529,1553]" italics="true" pageId="10" pageNumber="284">P. decempapillatus</emphasis>
|
||
Ward, 1974
|
||
</taxonomicName>
|
||
, and
|
||
<taxonomicName id="8EBC4D2F671CED6444F3F9DD3E2AF9B3" authority="Blome, 1982" authorityName="Blome" authorityYear="1982" box="[198,529,1565,1590]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="pachysetosus">
|
||
<emphasis id="7BC8EABE671CED6444F3F9DD3D4DF9B0" box="[198,374,1566,1590]" italics="true" pageId="10" pageNumber="284">P. pachysetosus</emphasis>
|
||
Blome, 1982
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName id="8EBC4D2F671CED644629F9DD3EA7F9B0" box="[540,668,1567,1590]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="virginiae" status="sp. nov.">
|
||
<emphasis id="7BC8EABE671CED644629F9DD3EA7F9B0" box="[540,668,1567,1590]" italics="true" pageId="10" pageNumber="284">P. virginiae</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="60FB57C5671CED644696F9DC3EE4F9B3" box="[675,735,1566,1589]" pageId="10" pageNumber="284" rank="species">n. sp.</taxonomicNameLabel>
|
||
can be distinguished from all other species of the genus based on the combination of the following characters: relatively small body size (1100–1200 Μm), short tail (<2.0 abd), and presence of five small precloacal setae.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="01A66527671CED6444FCF94B3ECAF8FF" pageId="10" pageNumber="284" type="discussion">
|
||
<paragraph id="490336AC671CED6444FCF94B3ECAF8FF" blockId="10.[151,1437,518,1913]" pageId="10" pageNumber="284">
|
||
<emphasis id="7BC8EABE671CED6444FCF94B3D75F924" bold="true" box="[201,334,1673,1698]" pageId="10" pageNumber="284">Discussion.</emphasis>
|
||
This is the first record of the genus
|
||
<taxonomicName id="8EBC4D2F671CED644737F94B3FADF927" box="[770,918,1673,1697]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="genus">
|
||
<emphasis id="7BC8EABE671CED644737F94B3FADF927" box="[770,918,1673,1697]" italics="true" pageId="10" pageNumber="284">Pseudonchus</emphasis>
|
||
</taxonomicName>
|
||
within the
|
||
<collectingCountry id="31AB763C671CED64402AF9483882F927" box="[1055,1209,1673,1697]" name="New Zealand" pageId="10" pageNumber="284">New Zealand</collectingCountry>
|
||
region, and, to our knowledge, from the deep sea (>
|
||
<quantity id="8E449B49671CED64463FF96F3E6FF943" box="[522,596,1709,1733]" metricMagnitude="2" metricUnit="m" metricValue="2.0" pageId="10" pageNumber="284" unit="m" value="200.0">200 m</quantity>
|
||
water depth). This genus is unusual in that the dorsal sector of the buccal cavity has been lost, resulting in a lateral symmetry instead of the usual triradial symmetry found in most other nematode taxa. This loss of the dorsal sector is mostly restricted to the labial and buccal regions, however, and only affects the anterior extremity of the pharynx, as suggested by De Coninck (1945) based on observations on
|
||
<taxonomicName id="8EBC4D2F671CED6441B2F8D83D18F8D0" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="symmetricus">
|
||
<emphasis id="7BC8EABE671CED6441B2F8D83D18F8D0" italics="true" pageId="10" pageNumber="284">P. symmetricus</emphasis>
|
||
</taxonomicName>
|
||
. The presence of three marginal tubes in the pharynx of
|
||
<taxonomicName id="8EBC4D2F671CED6447FEF8FD3874F8D0" box="[971,1103,1855,1878]" class="Adenophorea" family="Choniolaimidae" genus="Pseudonchus" kingdom="Animalia" order="Desmodorida" pageId="10" pageNumber="284" phylum="Nematoda" rank="species" species="virginiae" status="sp. nov.">
|
||
<emphasis id="7BC8EABE671CED6447FEF8FD3874F8D0" box="[971,1103,1855,1878]" italics="true" pageId="10" pageNumber="284">P. virginiae</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="7BC8EABE671CED64406FF8FC38A5F8D0" bold="true" box="[1114,1182,1854,1878]" pageId="10" pageNumber="284">
|
||
<taxonomicNameLabel id="60FB57C5671CED64406FF8FC38A5F8D0" box="[1114,1182,1854,1878]" pageId="10" pageNumber="284" rank="species">sp. n.</taxonomicNameLabel>
|
||
</emphasis>
|
||
(one ventral and two dorsosublateral) is consistent with these observations.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |