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138 lines
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<document id="1E6C13B4E71F745FFB5CF4920E700A63" ID-DOI="10.5281/zenodo.12118784" ID-ISSN="0026-279X" ID-Zenodo-Dep="12118784" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1718742264011" checkinUser="felipe" docAuthor="Lobban, Christopher S. & Witkowski, Andrzej" docDate="2023" docId="03C287AAFFF00B0BFF357F16FA83FC1F" docLanguage="en" docName="Micronesica.2023.02.1-75.pdf" docOrigin="Micronesica 2023 (2)" docStyle="DocumentStyle:73477DD41873F4E732E2765E250AF97D.1:Micronesica.2013-.journal_article.type1" docStyleId="73477DD41873F4E732E2765E250AF97D" docStyleName="Micronesica.2013-.journal_article.type1" docStyleVersion="1" docTitle="Pleurosigma simulacrum Lobban & Sterrenburg" docType="treatment" docVersion="2" lastPageNumber="13" masterDocId="FFFBFFD2FFFC0B07FFD37D20FF9BFFCC" masterDocTitle="Marine benthic diatoms of Guam: new records, Dictyoneis apapae sp. nov., and updates to the checklist" masterLastPageNumber="75" masterPageNumber="1" pageNumber="13" updateTime="1718742662161" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-NC-ND-4.0">
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<mods:mods id="EC11AA28C69BC142C528DAE91EE16F16" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="D7757CCC992D2B6255E3809756DBE8A7">
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<mods:title id="D626CD91A8B188B224555A3E34B2D6C4">Marine benthic diatoms of Guam: new records, Dictyoneis apapae sp. nov., and updates to the checklist</mods:title>
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</mods:titleInfo>
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<mods:name id="9B500B5DB33194D8BB53EE517B2F0431" type="personal">
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<mods:roleTerm id="15D66449516D19C1446E2E62AFE40308">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="598AAF02459489706BDCF08AABCD045B">Lobban, Christopher S.</mods:namePart>
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<mods:affiliation id="291091A7299763CAF0ECE5C1857DED47">Division of Natural Sciences, University of Guam, Mangilao, GU 96923, USA clobban @ triton. uog. edu</mods:affiliation>
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<mods:nameIdentifier id="D4B6764D25BFEE8486DBDA41D720B009" type="email">clobban@triton.uog.edu</mods:nameIdentifier>
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</mods:name>
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<mods:name id="E0F7406629B210CF29E43F51A4AC2223" type="personal">
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<mods:role id="BDF539BBA4E98289B9B3D3513774143B">
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<mods:roleTerm id="1F3CEFA7B8899137F87F966C2261D102">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="D077E4495B95CC9DA481227035D658AB">Witkowski, Andrzej</mods:namePart>
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<mods:affiliation id="0816E6C548C88E1E89EC1F662CB723A0">University of Szczecin, Institute of Marine and Environmental Sciences Mickiewicza 16 a, PL 70 - 383 Szczecin, Poland</mods:affiliation>
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</mods:name>
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<mods:typeOfResource id="A5087CCE7388D7285BAE59DAE6201475">text</mods:typeOfResource>
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<mods:titleInfo id="BD4131712EBAAC284AA93E224F161243">
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<mods:title id="12D5CE72F0DE01439AAC21E0E163BB4D">Micronesica</mods:title>
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</mods:titleInfo>
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<mods:part id="FE3D76555373B9D57A5F3F7245F5AE06">
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<mods:date id="9F1E1F306E8CEE75B9CBB4CE2AA8A621">2023</mods:date>
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<mods:detail id="83D56C840E81DC8AB4870A447E5C594B" type="volume">
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<mods:number id="DB72A32FB20B19321019BF299687FC1D">2023</mods:number>
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</mods:detail>
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<mods:detail id="F55C05FA1C9D0B173CA2F48DAF9F1317" type="issue">
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<mods:number id="F217DE513AACC2C32084E814602246E6">2</mods:number>
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</mods:detail>
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<mods:start id="29F145C005CFC696F84C0FBEEC16E61D">1</mods:start>
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<mods:end id="01EAEC81A6AC8D0C1C31CCFAAA379232">75</mods:end>
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</mods:relatedItem>
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<mods:classification id="9667F0EDC07AE3398BDBF584FFA3FD0B">journal article</mods:classification>
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<mods:identifier id="A8D9B406D7F6C5504196BF4FC40D6616" type="DOI">10.5281/zenodo.12118784</mods:identifier>
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<mods:identifier id="D053B934D397732A28D1041A58BF7973" type="ISSN">0026-279X</mods:identifier>
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<mods:identifier id="979C58549BB9EBFFEB398B04E8234E7F" type="Zenodo-Dep">12118784</mods:identifier>
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</mods:mods>
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<treatment id="03C287AAFFF00B0BFF357F16FA83FC1F" ID-DOI="http://doi.org/10.5281/zenodo.12118922" ID-Zenodo-Dep="12118922" LSID="urn:lsid:plazi:treatment:03C287AAFFF00B0BFF357F16FA83FC1F" httpUri="http://treatment.plazi.org/id/03C287AAFFF00B0BFF357F16FA83FC1F" lastPageNumber="13" pageId="12" pageNumber="13">
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<subSubSection id="C3716537FFF00B0BFF357F16FD51FDB6" pageId="12" pageNumber="13" type="nomenclature">
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<paragraph id="8BD436BCFFF00B0BFF357F16FCBBFD9C" blockId="12.[230,800,566,592]" box="[230,800,566,592]" pageId="12" pageNumber="13">
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<heading id="D09C81D0FFF00B0BFF357F16FCBBFD9C" box="[230,800,566,592]" fontSize="11" level="2" pageId="12" pageNumber="13" reason="5">
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<taxonomicName id="4C6B4D3FFFF00B0BFF357F16FCBBFD9C" authority="Lobban & Sterrenburg" authorityName="Lobban & Sterrenburg" box="[230,800,566,592]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="simulacrum">
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<emphasis id="B91FEAAEFFF00B0BFF357F16FD94FD9C" box="[230,527,566,592]" italics="true" pageId="12" pageNumber="13">Pleurosigma simulacrum</emphasis>
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Lobban & Sterrenburg
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="8BD436BCFFF00B0BFF357F40FD51FDB6" blockId="12.[230,1402,608,979]" box="[230,714,608,634]" pageId="12" pageNumber="13">Ref.: Lobban 2021a, p. 253, figs 91–102.</paragraph>
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</subSubSection>
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<subSubSection id="C3716537FFF00B0BFF357FA9FA83FC1F" pageId="12" pageNumber="13" type="description">
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<paragraph id="8BD436BCFFF00B0BFF357FA9FA83FC1F" blockId="12.[230,1402,608,979]" pageId="12" pageNumber="13">
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Here we just want to note that this species, described from
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<collectingCountry id="F37C762CFFF00B0BFC477FA9FC47FD6F" box="[916,988,649,675]" name="Guam" pageId="12" pageNumber="13">Guam</collectingCountry>
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and Yap and differentiated from
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<taxonomicName id="4C6B4D3FFFF00B0BFAB37FA9FE74FD09" authority="W. Smith" authorityName="W. Smith" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="intermedium">
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<emphasis id="B91FEAAEFFF00B0BFAB37FA9FEE1FD09" italics="true" pageId="12" pageNumber="13">P. intermedium</emphasis>
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W.Smith
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</taxonomicName>
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, is also similar in shape to
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<taxonomicName id="4C6B4D3FFFF00B0BFCE07F8BFB3CFD09" authority="A. Mann (1925" authorityName="A. Mann" authorityYear="1925" box="[819,1191,683,709]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="acus">
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<emphasis id="B91FEAAEFFF00B0BFCE07F8BFC10FD09" box="[819,907,683,709]" italics="true" pageId="12" pageNumber="13">P. acus</emphasis>
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A.
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<bibRefCitation id="EFFA4B4DFFF00B0BFC7F7F8BFBD8FD09" author="Mann, A." box="[940,1091,683,709]" pageId="12" pageNumber="13" pagination="1 - 182" refId="ref17579" refString="Mann, A. 1925. Marine diatoms of the Philippine Islands. Smithsonian Institution Bulletin 100 (6): 1 - 182 + 39 pl." type="journal article" year="1925">Mann (1925</bibRefCitation>
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, p. 133
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</taxonomicName>
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, pl. 29, figs 4, 5), described from the
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<collectingCountry id="F37C762CFFF00B0BFE197FECFDD5FD2A" box="[458,590,716,742]" name="Philippines" pageId="12" pageNumber="13">Philippines</collectingCountry>
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as being very similar to
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<taxonomicName id="4C6B4D3FFFF00B0BFCA27FECFBBEFD2A" box="[881,1061,716,742]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="intermedium">
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<emphasis id="B91FEAAEFFF00B0BFCA27FECFBBEFD2A" box="[881,1061,716,742]" italics="true" pageId="12" pageNumber="13">P. intermedium</emphasis>
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</taxonomicName>
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.
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<bibRefCitation id="EFFA4B4DFFF00B0BFBE77FECFB76FD2A" author="Stidolph, S. R." box="[1076,1261,716,742]" pageId="12" pageNumber="13" refId="ref20018" refString="Stidolph, S. R. 2002. Observations and remarks on the morphology and taxonomy of the diatom genera Gyrosigma Hassal and Pleurosigma W. Smith. V. Pleurosigma types of A. Mann (1925): a critical re-investigation. Micropaleontology 48: 373 - 284." type="journal volume" year="2002">Stidolph (2002)</bibRefCitation>
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pointed out that
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<taxonomicName id="4C6B4D3FFFF00B0BFEC97FCEFEEAFCC4" authorityName="A. Mann" authorityYear="1925" box="[282,369,750,776]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="acus">
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<emphasis id="B91FEAAEFFF00B0BFEC97FCEFEEAFCC4" box="[282,369,750,776]" italics="true" pageId="12" pageNumber="13">P. acus</emphasis>
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</taxonomicName>
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has the diagonal striae at ca 80º to one another, contrasting with
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<taxonomicName id="4C6B4D3FFFF00B0BFBA27FCEFABDFCC4" box="[1137,1318,750,776]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="intermedium">
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<emphasis id="B91FEAAEFFF00B0BFBA27FCEFABDFCC4" box="[1137,1318,750,776]" italics="true" pageId="12" pageNumber="13">P. intermedium</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C6B4D3FFFF00B0BFAB37FCEFEEAFCE6" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="simulacrum">
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<emphasis id="B91FEAAEFFF00B0BFAB37FCEFEEAFCE6" italics="true" pageId="12" pageNumber="13">P. simulacrum</emphasis>
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</taxonomicName>
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.
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<taxonomicName id="4C6B4D3FFFF00B0BFE507E30FD34FCE6" box="[387,687,784,810]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="simulacrum">
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<emphasis id="B91FEAAEFFF00B0BFE507E30FD34FCE6" box="[387,687,784,810]" italics="true" pageId="12" pageNumber="13">Pleurosigma simulacrum</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C6B4D3FFFF00B0BFD3D7E30FCD3FCE6" authorityName="A. Mann" authorityYear="1925" box="[750,840,784,810]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="acus">
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<emphasis id="B91FEAAEFFF00B0BFD3D7E30FCD3FCE6" box="[750,840,784,810]" italics="true" pageId="12" pageNumber="13">P. acus</emphasis>
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</taxonomicName>
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both lack the calcar slit at the apex, which is present in
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<taxonomicName id="4C6B4D3FFFF00B0BFEB67E12FD80FC80" box="[357,539,818,844]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="intermedium">
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<emphasis id="B91FEAAEFFF00B0BFEB67E12FD80FC80" box="[357,539,818,844]" italics="true" pageId="12" pageNumber="13">P. intermedium</emphasis>
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</taxonomicName>
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. Mann also noted that the striae of
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<taxonomicName id="4C6B4D3FFFF00B0BFC197E12FBB8FC80" authorityName="A. Mann" authorityYear="1925" box="[970,1059,818,844]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="acus">
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<emphasis id="B91FEAAEFFF00B0BFC197E12FBB8FC80" box="[970,1059,818,844]" italics="true" pageId="12" pageNumber="13">P. acus</emphasis>
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</taxonomicName>
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are much coarser than other straight species (14, vs
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<quantity id="4C939B59FFF00B0BFE2B7E73FDA8FCA1" box="[504,563,851,877]" metricMagnitude="-1" metricUnit="m" metricValue="6.604" pageId="12" pageNumber="13" unit="in" value="26.0">26 in</quantity>
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10 µm for
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<taxonomicName id="4C6B4D3FFFF00B0BFD647E73FCF9FCA1" box="[695,866,851,877]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="simulacrum">
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<emphasis id="B91FEAAEFFF00B0BFD647E73FCF9FCA1" box="[695,866,851,877]" italics="true" pageId="12" pageNumber="13">P. simulacrum</emphasis>
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</taxonomicName>
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). Thus, there are at least four straight, narrow species of
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<taxonomicName id="4C6B4D3FFFF00B0BFEB07E55FE62FC43" authorityName="W.Smith" authorityYear="1852" box="[355,505,885,911]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="genus">
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<emphasis id="B91FEAAEFFF00B0BFEB07E55FE62FC43" box="[355,505,885,911]" italics="true" pageId="12" pageNumber="13">Pleurosigma</emphasis>
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</taxonomicName>
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, the fourth being
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<taxonomicName id="4C6B4D3FFFF00B0BFD187E55FB65FC43" authority="Ferrario & Sar (Sar et al. 2012)" box="[715,1278,885,911]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="patagonicum">
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<emphasis id="B91FEAAEFFF00B0BFD187E55FC1EFC43" box="[715,901,885,911]" italics="true" pageId="12" pageNumber="13">P. patagonicum</emphasis>
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Ferrario & Sar (
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<bibRefCitation id="EFFA4B4DFFF00B0BFB9B7E55FB6CFC43" author="Sar, E. A. & F. Hinz & F. A. S. Sterrenburg & A. S. Lavigne & S. Lufeudo & I. Sunesen" box="[1096,1271,885,911]" pageId="12" pageNumber="13" pagination="237 - 253" refId="ref19588" refString="Sar, E. A., F. Hinz, F. A. S. Sterrenburg, A. S. Lavigne, S. Lufeudo & I. Sunesen. 2012. Species of Pleurosigma (Pleurosigmataceae) with lanceolate or slightly sigmoid valve outlines: analysis of type material. Diatom Research 27: 237 - 253." type="journal article" year="2012">Sar et al. 2012</bibRefCitation>
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)
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</taxonomicName>
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(
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<tableCitation id="C6E90307FFF00B0BFADD7E55FAF0FC43" box="[1294,1387,885,911]" captionStart="Table 2" captionStartId="13.[200,264,783,811]" captionText="Table 2. Comparison of Pleurosigma simulacrum with other straight species." pageId="12" pageNumber="13">Table 2</tableCitation>
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). We have checked all images we attributed to
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<taxonomicName id="4C6B4D3FFFF00B0BFD2A7EB7FC3FFC7D" box="[761,932,919,945]" class="Bacillariophyceae" family="Pleurosigmataceae" genus="Pleurosigma" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Naviculales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="simulacrum">
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<emphasis id="B91FEAAEFFF00B0BFD2A7EB7FC3FFC7D" box="[761,932,919,945]" italics="true" pageId="12" pageNumber="13">P. simulacrum</emphasis>
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</taxonomicName>
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, now including specimens from Saipan, Chuuk and
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<collectingCountry id="F37C762CFFF00B0BFEBD7E99FE34FC1F" box="[366,431,953,979]" name="Palau" pageId="12" pageNumber="13">Palau</collectingCountry>
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(Lobban, unpublished), and confirmed that they were correctly identified.
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</paragraph>
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</subSubSection>
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</treatment>
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</document>
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