292 lines
53 KiB
XML
292 lines
53 KiB
XML
<document id="F8460EA3A63CA36B986F95431339A33F" ID-CLB-Dataset="21375" ID-DOI="10.5852/ejt.2020.694" ID-GBIF-Dataset="521cb733-cb6c-4b74-8c94-957e2ad22336" ID-Zenodo-Dep="3973347" IM.bibliography_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1596644209496" checkinUser="valdenar" docAuthor="Goeyers, Charlotte & Vijver, Bart Van De" docDate="2020" docId="03E887AFFFD4FFDBAFCFFD93870E6F93" docLanguage="en" docName="ejt-694_goeyers_van-der-vijver.pdf" docOrigin="European Journal of Taxonomy 694" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Arcanodiscus crawfordianus Goeyers & Van de Vijver 2020, sp. nov." docType="treatment" docVersion="5" lastPageNumber="16" masterDocId="FFD1FFD7FFD8FFD4AE6BFF8084466D41" masterDocTitle="Revision of the non-marine centric diatom flora (Bacillariophyta) of the sub-Antarctic Campbell Island (southern Pacific Ocean) with the descriptions of five new species" masterLastPageNumber="30" masterPageNumber="1" pageNumber="13" updateTime="1698844070407" updateUser="ExternalLinkService">
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<mods:titleInfo id="D3979270759FD57B7A505145B9406B28">
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<mods:title id="989FC6BF466EB23BB4877F96E467C396">Revision of the non-marine centric diatom flora (Bacillariophyta) of the sub-Antarctic Campbell Island (southern Pacific Ocean) with the descriptions of five new species</mods:title>
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</mods:titleInfo>
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<mods:name id="E2A2AA166B024D18014A781A8A4DDF91" type="personal">
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<mods:role id="940B2C297D325AA420B1E64E3FA593AD">
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<mods:roleTerm id="BAF43F1FF0EDDEEF02A5F5FA7AFC2873">Author</mods:roleTerm>
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<mods:namePart id="399899FC99D943E2F563F500F6F8C50A">Goeyers, Charlotte</mods:namePart>
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<mods:affiliation id="F533D3AE552F4D91A80A67A53048CBD0">Meise Botanic Garden, Research Department, Nieuwelaan 38, B- 1860 Meise, Belgium & University of Antwerp, Department of Biology, ECOBE, Universiteitsplein 1, B- 2610 Wilrijk, Antwerpen, Belgium.</mods:affiliation>
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<mods:nameIdentifier id="43482F09B806B392EFDBE9B886F80F22" type="email">goeyerscharlotte@hotmail.com</mods:nameIdentifier>
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</mods:name>
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<mods:name id="84A4762ECB5D36A5AA066143083798AD" type="personal">
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<mods:roleTerm id="7AC5A154018CC9F3497E981014ED81B1">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="9A9CEF48A36DFA455F9EBD433AC6DB0A">Vijver, Bart Van De</mods:namePart>
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<mods:affiliation id="3828533C87508621D5A311683B4A95C5">Meise Botanic Garden, Research Department, Nieuwelaan 38, B- 1860 Meise, Belgium & University of Antwerp, Department of Biology, ECOBE, Universiteitsplein 1, B- 2610 Wilrijk, Antwerpen, Belgium.</mods:affiliation>
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<mods:nameIdentifier id="B253AD3F0B7690980406AAACAEF00B70" type="email">bart.vandevijver@plantentuinmeise.be</mods:nameIdentifier>
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<mods:typeOfResource id="BF7B6CB0441CF447C345784482289FB6">text</mods:typeOfResource>
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<mods:titleInfo id="1FC8A98D79EF9B369AB3FA0DDF2135DD">
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<mods:title id="989F9629C1D3D82354C134999B5D003D">European Journal of Taxonomy</mods:title>
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</mods:titleInfo>
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<mods:part id="2AE6C34F1154A38E40F94BD90DF542CD">
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<mods:date id="C5F9AF3EF4E46E2EA987F270CAA5A250">2020</mods:date>
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<mods:detail id="ED228EC42BC0E597619FB9123F764FFE" type="pubDate">
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<mods:number id="473384FE1A73A61F0FF58239CD30A6C2">2020-07-30</mods:number>
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</mods:detail>
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<mods:detail id="9B1525E0393659D4FDD85C75AD191B84" type="volume">
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<mods:number id="2571BFCDB265CF89CD9981C1BFCE6ABF">694</mods:number>
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</mods:detail>
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<mods:start id="07F909675ADB7A85751964DFA9C13E74">1</mods:start>
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<mods:classification id="1577E36B8D140498FCEC2CD2B89251A8">journal article</mods:classification>
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<mods:identifier id="BA652803069BCAD99492F14B4CE0761B" type="CLB-Dataset">21375</mods:identifier>
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<mods:identifier id="DCEB7D8F8B1667DC24F7F583660342E6" type="DOI">10.5852/ejt.2020.694</mods:identifier>
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<mods:identifier id="0F8A4BE2185BF61C454F90EB05D39845" type="GBIF-Dataset">521cb733-cb6c-4b74-8c94-957e2ad22336</mods:identifier>
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<mods:identifier id="9B4DBC745B3D656AD02E99A9350DFA18" type="Zenodo-Dep">3973347</mods:identifier>
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<treatment id="03E887AFFFD4FFDBAFCFFD93870E6F93" ID-DOI="http://doi.org/10.5281/zenodo.4329152" ID-GBIF-Taxon="166095796" ID-Zenodo-Dep="4329152" LSID="urn:lsid:plazi:treatment:03E887AFFFD4FFDBAFCFFD93870E6F93" httpUri="http://treatment.plazi.org/id/03E887AFFFD4FFDBAFCFFD93870E6F93" lastPageId="15" lastPageNumber="16" pageId="12" pageNumber="13">
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<subSubSection id="C35B6532FFD4FFD8AFCFFD9387D06F35" pageId="12" pageNumber="13" type="nomenclature">
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<paragraph id="8BFE36B9FFD4FFD8AFCFFD9387D06F35" blockId="12.[420,1168,531,628]" pageId="12" pageNumber="13">
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<heading id="D0B681D5FFD4FFD8AFCFFD9380D66F6F" box="[420,1168,531,558]" level="2" pageId="12" pageNumber="13">
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<taxonomicName id="4C414D3AFFD4FFD8AFCFFD9380686F6C" authority="Goeyers & Van de Vijver" authorityName="Goeyers & Van de Vijver" authorityYear="2020" box="[420,1070,531,558]" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="12" pageNumber="13" phylum="Ochrophyta" rank="species" species="crawfordianus" status="sp. nov.">
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<emphasis id="B935EAABFFD4FFD8AFCFFD9387466F6F" bold="true" box="[420,768,531,558]" italics="true" pageId="12" pageNumber="13">Arcanodiscus crawfordianus</emphasis>
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Goeyers & Van de Vijver
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</taxonomicName>
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<taxonomicNameLabel id="A20657D0FFD4FFD8AA5DFD9480D66F6F" box="[1078,1168,532,558]" pageId="12" pageNumber="13" rank="species">sp. nov.</taxonomicNameLabel>
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</heading>
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http://phycobank.org/
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<date id="FFFF1079FFD4FFD8AD06FDB787826F10" box="[877,964,567,593]" pageId="12" pageNumber="13" value="18-10-23">102318</date>
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<figureCitation id="137A2A3CFFD4FFD8ACF5FDDA87636F35" box="[670,805,602,628]" captionStart="Figs 74–115" captionStartId="13.[189,241,1470,1496]" captionTargetBox="[189,1399,265,1430]" captionTargetId="figure@13.[189,1399,265,1430]" captionTargetPageId="13" captionText="Figs 74–115. Three newArcanodiscus speciesfrom CampbellIsland.74–80. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. LM. Campbell Island holotype population, sample BAS303 (BR-4579). Several valves in valve face view showing clearly the large central area, the irregularly scattered spines and the marginal striae. 81–96. Arcanodiscus indistinctus Goeyers & Van de Vijver sp. nov. LM. Campbell Island holotype population, sample BAS303 (BR-4580). 81. Frustule in girdle view showing the discoid chloroplasts. 82. Frustule in girdle view. 83–96. Several valves in valve face view. Note the thick mantle in some of the valves and the large central area. 97–115. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. LM. Campbell Island holotype population, sample BAS272 (BR-4581). 97–101. Several frustules in girdle view, often connected to each other. 102–115. Several valves in valve face view. Note the thick mantle in some of the valves and the relatively small central area. The marginal striae are hardly visible in LM. Scale bars = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.3973568" httpUri="https://zenodo.org/record/3973568/files/figure.png" pageId="12" pageNumber="13">Figs 74–80</figureCitation>
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,
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<figureCitation id="137A2A3CFFD4FFD8AD5BFDDA87D06F35" box="[816,918,602,628]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="12" pageNumber="13">116–124</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="C35B6532FFD4FFD8AED6FD1C85E16E46" pageId="12" pageNumber="13" type="etymology">
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<paragraph id="8BFE36B9FFD4FFD8AED6FD1C85026FF7" blockId="12.[189,324,668,694]" box="[189,324,668,694]" pageId="12" pageNumber="13">
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<heading id="D0B681D5FFD4FFD8AED6FD1C85026FF7" bold="true" box="[189,324,668,694]" fontSize="11" level="3" pageId="12" pageNumber="13" reason="3">
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<emphasis id="B935EAABFFD4FFD8AED6FD1C85026FF7" bold="true" box="[189,324,668,694]" pageId="12" pageNumber="13">Etymology</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BFE36B9FFD4FFD8AED6FD4A85E16E46" blockId="12.[189,1398,714,775]" pageId="12" pageNumber="13">The species is named in honor of our colleague Dr Richard M. Crawford to acknowledge his work on melosiroid diatoms.</paragraph>
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</subSubSection>
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<subSubSection id="C35B6532FFD4FFD8AED6FCAE856B6963" pageId="12" pageNumber="13" type="materials_examined">
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||
<paragraph id="8BFE36B9FFD4FFD8AED6FCAE85ED6E09" blockId="12.[189,427,814,840]" box="[189,427,814,840]" pageId="12" pageNumber="13">
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<heading id="D0B681D5FFD4FFD8AED6FCAE85ED6E09" bold="true" box="[189,427,814,840]" fontSize="11" level="3" pageId="12" pageNumber="13" reason="3">
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<emphasis id="B935EAABFFD4FFD8AED6FCAE85ED6E09" bold="true" box="[189,427,814,840]" pageId="12" pageNumber="13">Material examined</emphasis>
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</heading>
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</paragraph>
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<materialsCitation id="3B293CE4FFD4FFD8AE81FCDD81186EDA" ID-GBIF-Occurrence="2824214307" collectingDate="1970-01-12" collectionCode="BAS" collectorName="D. Vitt" location="CAMPBELL ISLAND" pageId="12" pageNumber="13" specimenCode="BR-4579" specimenCount="1" typeStatus="holotype">
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<paragraph id="8BFE36B9FFD4FFD8AE81FCDD851A6E36" blockId="12.[189,1374,861,923]" box="[234,348,861,887]" pageId="12" pageNumber="13">
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<emphasis id="B935EAABFFD4FFD8AE81FCDD851A6E36" bold="true" box="[234,348,861,887]" pageId="12" pageNumber="13">
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<typeStatus id="54FA881BFFD4FFD8AE81FCDD851A6E36" box="[234,348,861,887]" pageId="12" pageNumber="13" type="holotype">Holotype</typeStatus>
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</emphasis>
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</paragraph>
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<paragraph id="8BFE36B9FFD4FFD8AED6FC0081186EDA" blockId="12.[189,1374,861,923]" box="[189,1374,896,923]" pageId="12" pageNumber="13">
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||
<location id="8E9E6062FFD4FFD8AED6FC00858A6EDB" LSID="urn:lsid:plazi:treatment:03E887AFFFD4FFDBAFCFFD93870E6F93:8E9E6062FFD4FFD8AED6FC00858A6EDB" box="[189,460,896,922]" name="CAMPBELL ISLAND" pageId="12" pageNumber="13">CAMPBELL ISLAND</location>
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•
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<location id="8E9E6062FFD4FFD8AF8FFC00869C6EDB" LSID="urn:lsid:plazi:treatment:03E887AFFFD4FFDBAFCFFD93870E6F93:8E9E6062FFD4FFD8AF8FFC00869C6EDB" box="[484,730,896,922]" name="sub-Antarctic region" pageId="12" pageNumber="13">sub-Antarctic region</location>
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; sample BAS303;
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<date id="FFFF1079FFD4FFD8ADDEFC00800B6EDB" box="[949,1101,896,923]" pageId="12" pageNumber="13" value="1970-01-12">
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<collectingDate id="EFBBE991FFD4FFD8ADDEFC00800B6EDB" box="[949,1101,896,923]" pageId="12" pageNumber="13" value="1970-01-12">12 Jan. 1970</collectingDate>
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</date>
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;
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<collectorName id="26B4536FFFD4FFD8AA32FC0180EF6EDB" box="[1113,1193,896,923]" pageId="12" pageNumber="13">D. Vitt</collectorName>
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leg.;
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<specimenCode id="DBE79EC2FFD4FFD8AA81FC00811C6EDA" box="[1258,1370,896,923]" pageId="12" pageNumber="13">BR-4579</specimenCode>
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.
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</paragraph>
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</materialsCitation>
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<paragraph id="8BFE36B9FFD4FFD8AE81FC4285036E9D" blockId="12.[189,1398,962,1058]" box="[234,325,962,988]" pageId="12" pageNumber="13">
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<emphasis id="B935EAABFFD4FFD8AE81FC4285036E9D" bold="true" box="[234,325,962,988]" pageId="12" pageNumber="13">Isotype</emphasis>
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</paragraph>
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<paragraph id="8BFE36B9FFD4FFD8AED6FC65856B6963" blockId="12.[189,1398,962,1058]" pageId="12" pageNumber="13">
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<materialsCitation id="3B293CE4FFD4FFD8AED6FC65856B6963" ID-GBIF-Occurrence="2824214306" collectionCode="PLP" location="CAMPBELL ISLAND" pageId="12" pageNumber="13" specimenCode="PLP-370" specimenCount="1">
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<location id="8E9E6062FFD4FFD8AED6FC65858A6EBE" LSID="urn:lsid:plazi:treatment:03E887AFFFD4FFDBAFCFFD93870E6F93:8E9E6062FFD4FFD8AED6FC65858A6EBE" box="[189,460,997,1023]" name="CAMPBELL ISLAND" pageId="12" pageNumber="13">CAMPBELL ISLAND</location>
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• same collection data as for holotype; slide at University of Antwerp, Belgium;
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<specimenCode id="DBE79EC2FFD4FFD8AED6FB88856F6963" box="[189,297,1032,1058]" pageId="12" pageNumber="13">PLP-370</specimenCode>
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.
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</materialsCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="C35B6532FFD4FFDBAED6FBC987986C94" lastPageId="15" lastPageNumber="16" pageId="12" pageNumber="13" type="description">
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<paragraph id="8BFE36B9FFD4FFD8AED6FBC985086922" blockId="12.[189,334,1097,1123]" box="[189,334,1097,1123]" pageId="12" pageNumber="13">
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<heading id="D0B681D5FFD4FFD8AED6FBC985086922" bold="true" box="[189,334,1097,1123]" fontSize="11" level="3" pageId="12" pageNumber="13" reason="3">
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<emphasis id="B935EAABFFD4FFD8AED6FBC985086922" bold="true" box="[189,334,1097,1123]" pageId="12" pageNumber="13">Description</emphasis>
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</heading>
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</paragraph>
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||
<paragraph id="8BFE36B9FFD4FFD8AE81FBF8862569D3" blockId="12.[189,1399,1144,1382]" box="[234,611,1144,1170]" pageId="12" pageNumber="13">
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<emphasis id="B935EAABFFD4FFD8AE81FBF8858369D3" bold="true" box="[234,453,1144,1170]" pageId="12" pageNumber="13">Light microscopy</emphasis>
|
||
(
|
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<figureCitation id="137A2A3CFFD4FFD8AFBEFBF8861D69D3" box="[469,603,1144,1170]" captionStart="Figs 74–115" captionStartId="13.[189,241,1470,1496]" captionTargetBox="[189,1399,265,1430]" captionTargetId="figure@13.[189,1399,265,1430]" captionTargetPageId="13" captionText="Figs 74–115. Three newArcanodiscus speciesfrom CampbellIsland.74–80. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. LM. Campbell Island holotype population, sample BAS303 (BR-4579). Several valves in valve face view showing clearly the large central area, the irregularly scattered spines and the marginal striae. 81–96. Arcanodiscus indistinctus Goeyers & Van de Vijver sp. nov. LM. Campbell Island holotype population, sample BAS303 (BR-4580). 81. Frustule in girdle view showing the discoid chloroplasts. 82. Frustule in girdle view. 83–96. Several valves in valve face view. Note the thick mantle in some of the valves and the large central area. 97–115. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. LM. Campbell Island holotype population, sample BAS272 (BR-4581). 97–101. Several frustules in girdle view, often connected to each other. 102–115. Several valves in valve face view. Note the thick mantle in some of the valves and the relatively small central area. The marginal striae are hardly visible in LM. Scale bars = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.3973568" httpUri="https://zenodo.org/record/3973568/files/figure.png" pageId="12" pageNumber="13">Figs 74–80</figureCitation>
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)
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</paragraph>
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<paragraph id="8BFE36B9FFD4FFD8AED6FB1C85D56824" blockId="12.[189,1399,1144,1382]" pageId="12" pageNumber="13">
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To date, frustules in girdle view not observed in LM. Valves strongly silicified, rounded with a thick mantle and clearly convex, weakly domed valve face. Valve dimensions (n = 10): valve diameter 9–18.5 μm. Central area formed by a large, smooth, hyaline zone, 6–11 μm, ca 60% of the total valve diameter, surrounded by a striated, irregularly bordered marginal zone. Thick spines, scattered in the marginal zone distinctly present. Marginal striae discernible in LM,
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<quantity id="4CB99B5CFFD4FFD8AA67FAA8803F6803" box="[1036,1145,1320,1346]" metricMagnitude="-1" metricUnit="m" metricValue="8.001" metricValueMax="8.382" metricValueMin="7.62" pageId="12" pageNumber="13" unit="in" value="31.5" valueMax="33.0" valueMin="30.0">30–33 in</quantity>
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10 μm. Visible tube processes lacking.
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</paragraph>
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<paragraph id="8BFE36B9FFD4FFD8AE81FA0C875C68E9" blockId="12.[189,1399,1420,1975]" box="[234,794,1420,1448]" pageId="12" pageNumber="13">
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<emphasis id="B935EAABFFD4FFD8AE81FA0C862668E6" bold="true" box="[234,608,1420,1447]" pageId="12" pageNumber="13">Scanning electron microscopy</emphasis>
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(
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<figureCitation id="137A2A3CFFD4FFD8AC1BFA0D875568E9" box="[624,787,1421,1448]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="12" pageNumber="13">Figs 116–124</figureCitation>
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)
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</paragraph>
|
||
<paragraph id="8BFE36B9FFD4FFD8AED6FA3085BC6AF6" blockId="12.[189,1399,1420,1975]" pageId="12" pageNumber="13">
|
||
Frustules discoid with very heavily silicified valves, visible as a thick mantle (
|
||
<figureCitation id="137A2A3CFFD4FFD8AAEEFA30812C688B" box="[1157,1386,1456,1482]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="12" pageNumber="13">Figs 116, 123–124</figureCitation>
|
||
). Frustule height approx. 11 μm. Cingulum comprising at least 4, rather narrow, very thin, non-perforated, open, ligulate copulae (
|
||
<figureCitation id="137A2A3CFFD4FFD8AFB7FA7686C26B51" box="[476,644,1526,1552]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="12" pageNumber="13">Figs 116, 120</figureCitation>
|
||
, double arrow). Pars interior clearly fimbriate (
|
||
<figureCitation id="137A2A3CFFD4FFD8AAA0FA7681346B51" box="[1227,1394,1526,1552]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="12" pageNumber="13">Figs 116, 117</figureCitation>
|
||
, arrows) giving the impression of perforated copulae. Valve face with large, flat hyaline, almost rounded central area, free of areolae, but with a dense covering of small silica granules (
|
||
<figureCitation id="137A2A3CFFD4FFD8AA38F9BD80BF6B16" box="[1107,1273,1597,1623]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="12" pageNumber="13">Figs 119–121</figureCitation>
|
||
). Marginal zone distinctly sloping towards the mantle with a very narrow flat zone immediately next to the valve face/mantle junction. Regular striation pattern present on sloping marginal zone. Irregular marginal ring of large, acute, solid spines present (
|
||
<figureCitation id="137A2A3CFFD4FFD8AC1CF926875D6B81" box="[631,795,1702,1728]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="12" pageNumber="13">Figs 120–122</figureCitation>
|
||
) close to the hyaline central area, placed between the areolae. Irregular pattern of small granules (
|
||
<figureCitation id="137A2A3CFFD4FFD8AC93F949871D6BA5" box="[760,859,1737,1764]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="12" pageNumber="13">Fig. 122</figureCitation>
|
||
) extending between the spines, though never reaching the mantle. Striae composed of small, strictly rounded areolae. Areolae externally covered by perforated occlusions (
|
||
<figureCitation id="137A2A3CFFD4FFD8AF98F89086DC6A6B" box="[499,666,1808,1834]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="12" pageNumber="13">Figs 118, 120</figureCitation>
|
||
). Openings of portulae not distinguishable from areolae even in SEM. Striae continuing over the valve face/mantle junction, interrupted by a thick marginal ridge running entirely around the mantle (
|
||
<figureCitation id="137A2A3CFFD4FFD8AC12F8D686986A31" box="[633,734,1878,1904]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="12" pageNumber="13">Fig. 119</figureCitation>
|
||
), usually covered by girdle bands. Mantle edge rather narrow. Between marginal ridge and mantle edge, relatively deep groove present, bearing several rows of strictly rounded areolae.
|
||
</paragraph>
|
||
<caption id="DF3E6631FFD5FFD9AED6FA3E875F6A79" ID-DOI="http://doi.org/10.5281/zenodo.3973568" ID-Zenodo-Dep="3973568" httpUri="https://zenodo.org/record/3973568/files/figure.png" pageId="13" pageNumber="14" startId="13.[189,241,1470,1496]" targetBox="[189,1399,265,1430]" targetPageId="13">
|
||
<paragraph id="8BFE36B9FFD5FFD9AED6FA3E875F6A79" blockId="13.[189,1399,1470,1848]" pageId="13" pageNumber="14">
|
||
<emphasis id="B935EAABFFD5FFD9AED6FA3E85106899" bold="true" box="[189,342,1470,1496]" pageId="13" pageNumber="14">Figs 74–115.</emphasis>
|
||
Three new
|
||
<taxonomicName id="4C414D3AFFD5FFD9AFBDFA3E86336899" box="[470,629,1470,1496]" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="13" pageNumber="14" phylum="Ochrophyta" rank="genus">
|
||
<emphasis id="B935EAABFFD5FFD9AFBDFA3E86336899" box="[470,629,1470,1496]" italics="true" pageId="13" pageNumber="14">Arcanodiscus</emphasis>
|
||
</taxonomicName>
|
||
species from Campbell Island.
|
||
<emphasis id="B935EAABFFD5FFD9ADBDFA3E80596899" bold="true" box="[982,1055,1470,1496]" pageId="13" pageNumber="14">74–80</emphasis>
|
||
.
|
||
<taxonomicName id="4C414D3AFFD5FFD9AA41FA3E859C68BA" authority="Goeyers & Van de Vijver" authorityName="Goeyers & Van de Vijver" authorityYear="2020" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="13" pageNumber="14" phylum="Ochrophyta" rank="species" species="crawfordianus" status="sp. nov.">
|
||
<emphasis id="B935EAABFFD5FFD9AA41FA3E81316899" box="[1066,1399,1470,1496]" italics="true" pageId="13" pageNumber="14">Arcanodiscus crawfordianus</emphasis>
|
||
Goeyers & Van de Vijver
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20657D0FFD5FFD9AFB4FA62867C68BD" box="[479,570,1506,1532]" pageId="13" pageNumber="14" rank="species">sp. nov.</taxonomicNameLabel>
|
||
LM. Campbell Island
|
||
<typeStatus id="54FA881BFFD5FFD9AD52FA6187E668BA" box="[825,928,1505,1531]" pageId="13" pageNumber="14" type="holotype">holotype</typeStatus>
|
||
population, sample BAS303 (BR-4579). Several valves in valve face view showing clearly the large central area, the irregularly scattered spines and the marginal striae.
|
||
<emphasis id="B935EAABFFD5FFD9AC4CF9A786366B00" bold="true" box="[551,624,1575,1601]" pageId="13" pageNumber="14">81–96</emphasis>
|
||
.
|
||
<taxonomicName id="4C414D3AFFD5FFD9AC14F9A8809C6B00" authority="Goeyers & Van de Vijver" authorityName="Goeyers & Van de Vijver" authorityYear="2020" box="[639,1242,1575,1602]" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="13" pageNumber="14" phylum="Ochrophyta" rank="species" species="indistinctus" status="sp. nov.">
|
||
<emphasis id="B935EAABFFD5FFD9AC14F9A887EA6B03" box="[639,940,1576,1602]" italics="true" pageId="13" pageNumber="14">Arcanodiscus indistinctus</emphasis>
|
||
Goeyers & Van de Vijver
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20657D0FFD5FFD9AA89F9A8817A6B03" box="[1250,1340,1576,1602]" pageId="13" pageNumber="14" rank="species">sp. nov.</taxonomicNameLabel>
|
||
LM. Campbell Island
|
||
<typeStatus id="54FA881BFFD5FFD9AFEDF9CB85AB6B24" box="[390,493,1611,1637]" pageId="13" pageNumber="14" type="holotype">holotype</typeStatus>
|
||
population, sample BAS303 (BR-4580).
|
||
<emphasis id="B935EAABFFD5FFD9ADBEF9CB87B46B24" bold="true" box="[981,1010,1611,1637]" pageId="13" pageNumber="14">81</emphasis>
|
||
. Frustule in girdle view showing the discoid chloroplasts.
|
||
<emphasis id="B935EAABFFD5FFD9AF81F9EE86416BC9" bold="true" box="[490,519,1646,1672]" pageId="13" pageNumber="14">82</emphasis>
|
||
. Frustule in girdle view.
|
||
<emphasis id="B935EAABFFD5FFD9AD51F9EE87C26BC9" bold="true" box="[826,900,1646,1672]" pageId="13" pageNumber="14">83–96</emphasis>
|
||
. Several valves in valve face view. Note the thick mantle in some of the valves and the large central area.
|
||
<emphasis id="B935EAABFFD5FFD9ADABF91180506BEA" bold="true" box="[960,1046,1681,1707]" pageId="13" pageNumber="14">97–115</emphasis>
|
||
.
|
||
<taxonomicName id="4C414D3AFFD5FFD9AA4DF911859C6B8F" authority="Goeyers & Van de Vijver" authorityName="Goeyers & Van de Vijver" authorityYear="2020" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="13" pageNumber="14" phylum="Ochrophyta" rank="species" species="saundersianus" status="sp. nov.">
|
||
<emphasis id="B935EAABFFD5FFD9AA4DF91181306BEA" box="[1062,1398,1681,1707]" italics="true" pageId="13" pageNumber="14">Arcanodiscus saundersianus</emphasis>
|
||
Goeyers & Van de Vijver
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20657D0FFD5FFD9AFB4F935867C6B8E" box="[479,570,1717,1743]" pageId="13" pageNumber="14" rank="species">sp. nov.</taxonomicNameLabel>
|
||
LM. Campbell Island
|
||
<typeStatus id="54FA881BFFD5FFD9AD52F93487E66B8F" box="[825,928,1716,1742]" pageId="13" pageNumber="14" type="holotype">holotype</typeStatus>
|
||
population, sample BAS272 (BR-4581).
|
||
<emphasis id="B935EAABFFD5FFD9AED6F95785536BB0" bold="true" box="[189,277,1751,1777]" pageId="13" pageNumber="14">97–101</emphasis>
|
||
. Several frustules in girdle view, often connected to each other.
|
||
<emphasis id="B935EAABFFD5FFD9AD93F95780186BB0" bold="true" box="[1016,1118,1751,1777]" pageId="13" pageNumber="14">102–115</emphasis>
|
||
. Several valves in valve face view. Note the thick mantle in some of the valves and the relatively small central area. The marginal striae are hardly visible in LM. Scale bars = 10 μm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF3E6631FFD6FFDAAED6F90E86856AA7" ID-DOI="http://doi.org/10.5281/zenodo.3973570" ID-Zenodo-Dep="3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="14" pageNumber="15" startId="14.[189,241,1678,1704]" targetBox="[296,1291,265,1633]" targetPageId="14">
|
||
<paragraph id="8BFE36B9FFD6FFDAAED6F90E86856AA7" blockId="14.[189,1399,1678,2022]" pageId="14" pageNumber="15">
|
||
<emphasis id="B935EAABFFD6FFDAAED6F90E85236BE9" bold="true" box="[189,357,1678,1704]" pageId="14" pageNumber="15">Figs 116–124.</emphasis>
|
||
<taxonomicName id="4C414D3AFFD6FFDAAF05F90E87BF6BE9" authority="Goeyers & Van de Vijver" authorityName="Goeyers & Van de Vijver" authorityYear="2020" box="[366,1017,1678,1705]" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="14" pageNumber="15" phylum="Ochrophyta" rank="species" species="crawfordianus" status="sp. nov.">
|
||
<emphasis id="B935EAABFFD6FFDAAF05F90E86866BE9" box="[366,704,1678,1704]" italics="true" pageId="14" pageNumber="15">Arcanodiscus crawfordianus</emphasis>
|
||
Goeyers & Van de Vijver
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20657D0FFD6FFDAAA68F90F801B6BE8" box="[1027,1117,1679,1705]" pageId="14" pageNumber="15" rank="species">sp. nov.</taxonomicNameLabel>
|
||
SEM. Campbell Island
|
||
<typeStatus id="54FA881BFFD6FFDAAED6F93285626B8D" box="[189,292,1714,1740]" pageId="14" pageNumber="15" type="holotype">holotype</typeStatus>
|
||
population, sample BAS303 (BR-4579).
|
||
<emphasis id="B935EAABFFD6FFDAAD65F93287716B8D" bold="true" box="[782,823,1714,1740]" pageId="14" pageNumber="15">116</emphasis>
|
||
. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae.
|
||
<emphasis id="B935EAABFFD6FFDAAC15F95586E16BAE" bold="true" box="[638,679,1749,1775]" pageId="14" pageNumber="15">117</emphasis>
|
||
. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae.
|
||
<emphasis id="B935EAABFFD6FFDAAA31F97880C56A53" bold="true" box="[1114,1155,1784,1810]" pageId="14" pageNumber="15">118</emphasis>
|
||
. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin.
|
||
<emphasis id="B935EAABFFD6FFDAAF76F8BE85006A19" bold="true" box="[285,326,1854,1880]" pageId="14" pageNumber="15">119</emphasis>
|
||
. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove.
|
||
<emphasis id="B935EAABFFD6FFDAAAC2F8E281566A3D" bold="true" box="[1193,1296,1890,1916]" pageId="14" pageNumber="15">120–121</emphasis>
|
||
. Several valve face views to show the irregular rings of spines.
|
||
<emphasis id="B935EAABFFD6FFDAAD5BF805871A6ADE" bold="true" box="[816,860,1925,1951]" pageId="14" pageNumber="15">122</emphasis>
|
||
. External detail of the spines and the granules.
|
||
<emphasis id="B935EAABFFD6FFDAAED6F82885626A83" bold="true" box="[189,292,1960,1986]" pageId="14" pageNumber="15">123–124</emphasis>
|
||
. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BFE36B9FFD7FFDBAED6FE8B87986C94" blockId="15.[189,1399,267,469]" pageId="15" pageNumber="16">
|
||
Internally, areolae large, clearly rounded, each showing a distinct rota, organized in a regular striation pattern (
|
||
<figureCitation id="137A2A3CFFD7FFDBAF74FEAE85C06C08" box="[287,390,302,329]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="15" pageNumber="16">Fig. 123</figureCitation>
|
||
). Mantle edge very broad, heavily silicified (
|
||
<figureCitation id="137A2A3CFFD7FFDBADFDFEAE807B6C08" box="[918,1085,302,329]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="15" pageNumber="16">Figs 123–124</figureCitation>
|
||
). Central area formed by a large hyaline, irregularly bordered, central zone (
|
||
<figureCitation id="137A2A3CFFD7FFDBAC92FED287266C2D" box="[761,864,338,364]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="15" pageNumber="16">Fig. 123</figureCitation>
|
||
). Several perforated, thickened protuberances which we presume to be the inner openings of portulae are irregularly scattered between the areolae, never organized in a regular marginal ring (
|
||
<figureCitation id="137A2A3CFFD7FFDBACC4FE1887526CF3" box="[687,788,408,434]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="15" pageNumber="16">Fig. 123</figureCitation>
|
||
, arrows). Inner openings of these processes rounded, smaller than the areolae, weakly raised above the surface (
|
||
<figureCitation id="137A2A3CFFD7FFDBAD01FE3B87976C94" box="[874,977,443,469]" captionStart="Figs 116–124" captionStartId="14.[189,241,1678,1704]" captionTargetBox="[296,1291,265,1633]" captionTargetId="figure@14.[296,1291,265,1633]" captionTargetPageId="14" captionText="Figs 116–124. Arcanodiscus crawfordianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS303 (BR-4579). 116. Frustule in girdle view. The arrows indicate the fimbriate pars interior of the copulae. 117. External view of a valve in girdle view showing the domed valve face, the marginal spines and some of the narrow, unperforated copulae. 118. External valve face view of an entire valve. Note the spines, the granules in the central area and the striae on the sloping margin. 119. External view of a valve in girdle view showing the domed valve face, the marginal spines, the distinct marginal ridge and the mantle edge bordered by the relatively large groove. 120–121. Several valve face views to show the irregular rings of spines. 122. External detail of the spines and the granules. 123–124. Internal views of an entire valve showing the rimoportulae (arrows). Scale bars: 116, 118–121, 123–124 = 10 μm; 117 = 5 μm; 122 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973570" httpUri="https://zenodo.org/record/3973570/files/figure.png" pageId="15" pageNumber="16">Fig. 124</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C35B6532FFD7FFDBAED6FE7D870E6F93" pageId="15" pageNumber="16" type="biology_ecology">
|
||
<paragraph id="8BFE36B9FFD7FFDBAED6FE7D85B46F56" blockId="15.[189,498,509,535]" box="[189,498,509,535]" pageId="15" pageNumber="16">
|
||
<heading id="D0B681D5FFD7FFDBAED6FE7D85B46F56" bold="true" box="[189,498,509,535]" fontSize="11" level="3" pageId="15" pageNumber="16" reason="3">
|
||
<emphasis id="B935EAABFFD7FFDBAED6FE7D85B46F56" bold="true" box="[189,498,509,535]" pageId="15" pageNumber="16">Ecology and distribution</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFD7FFDBAED6FDAB870E6F93" blockId="15.[189,1398,555,723]" pageId="15" pageNumber="16">
|
||
<taxonomicName id="4C414D3AFFD7FFDBAED6FDAB864A6F04" authority="Goeyers & Vijver, 2020" authorityName="Goeyers & Van de Vijver" authorityYear="2020" box="[189,524,555,581]" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="15" pageNumber="16" phylum="Ochrophyta" rank="species" species="crawfordianus" status="sp. nov.">
|
||
<emphasis id="B935EAABFFD7FFDBAED6FDAB864A6F04" box="[189,524,555,581]" italics="true" pageId="15" pageNumber="16">Arcanodiscus crawfordianus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20657D0FFD7FFDBAC79FDAC862B6F07" box="[530,621,556,582]" pageId="15" pageNumber="16" rank="species">sp. nov.</taxonomicNameLabel>
|
||
was described from a
|
||
<taxonomicName id="4C414D3AFFD7FFDBAD1AFDAB87B66F04" box="[881,1008,555,581]" class="Bryopsida" family="Racopilaceae" genus="Racopilum" kingdom="Plantae" order="Bryales" pageId="15" pageNumber="16" phylum="Bryophyta" rank="genus">
|
||
<emphasis id="B935EAABFFD7FFDBAD1AFDAB87B66F04" box="[881,1008,555,581]" italics="true" pageId="15" pageNumber="16">Racopilum</emphasis>
|
||
</taxonomicName>
|
||
moss vegetation collected from a wet rock east of Moubray Hill. The sample, in which also the newly described
|
||
<taxonomicName id="4C414D3AFFD7FFDBAA21FDCF81306F28" authority="Goeyers & Vijver, 2020" authorityName="Goeyers & Van de Vijver" authorityYear="2020" box="[1098,1398,591,617]" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="15" pageNumber="16" phylum="Ochrophyta" rank="species" species="indistinctus" status="sp. nov.">
|
||
<emphasis id="B935EAABFFD7FFDBAA21FDCF81306F28" box="[1098,1398,591,617]" italics="true" pageId="15" pageNumber="16">Arcanodiscus indistinctus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20657D0FFD7FFDBAED6FDF2855E6FCD" box="[189,280,626,652]" pageId="15" pageNumber="16" rank="species">sp. nov.</taxonomicNameLabel>
|
||
and
|
||
<taxonomicName id="4C414D3AFFD7FFDBAF3FFDF286216FCD" authority="Goeyers & Vijver, 2020" authorityName="Goeyers & Van de Vijver" authorityYear="2020" box="[340,615,626,652]" class="Bacillariophyceae" family="Melosiraceae" genus="Angusticopula" higherTaxonomySource="GBIF" kingdom="Chromista" order="Melosirales" pageId="15" pageNumber="16" phylum="Ochrophyta" rank="species" species="cosmica" status="sp. nov.">
|
||
<emphasis id="B935EAABFFD7FFDBAF3FFDF286216FCD" box="[340,615,626,652]" italics="true" pageId="15" pageNumber="16">Angusticopula cosmica</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20657D0FFD7FFDBAC1BFDF2868D6FCD" box="[624,715,626,652]" pageId="15" pageNumber="16" rank="species">sp. nov.</taxonomicNameLabel>
|
||
were observed, was dominated by
|
||
<taxonomicName id="4C414D3AFFD7FFDBAA19FDF285B96FEE" authority="(Van de Vijver et al. 2020)" baseAuthorityName="Van de Vijver" baseAuthorityYear="2020" class="Bacillariophyceae" family="Fragilariaceae" genus="Frankophila" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="15" pageNumber="16" phylum="Ochrophyta" rank="species" species="dalevittii">
|
||
<emphasis id="B935EAABFFD7FFDBAA19FDF281306FCD" box="[1138,1398,626,652]" italics="true" pageId="15" pageNumber="16">Frankophila dalevittii</emphasis>
|
||
(
|
||
<bibRefCitation id="EFD04B48FFD7FFDBAEAEFD1585BE6FEE" author="Van de Vijver" box="[197,504,661,687]" etAl="et al." firstAuthor="Van de Vijver" pageId="15" pageNumber="16" pagination="57 - 64" refId="ref14216" refString="Van de Vijver B., Ballings P. & Goeyers C. 2020. Frankophila dalevittii, a new freshwater diatom (Bacillariophyta) from Campbell Island. Phytotaxa 429 (1): 57 - 64. https: // doi. org / 10.11646 / phytotaxa. 429.1.4" type="journal article" year="2020">
|
||
Van de Vijver
|
||
<emphasis id="B935EAABFFD7FFDBAF1EFD1685E96FEE" box="[373,431,661,687]" italics="true" pageId="15" pageNumber="16">et al.</emphasis>
|
||
2020
|
||
</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C414D3AFFD7FFDBAC65FD1587606FEE" box="[526,806,661,687]" class="Bacillariophyceae" family="Achnanthaceae" genus="Diatomella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="16" phylum="Ochrophyta" rank="species" species="balfouriana">
|
||
<emphasis id="B935EAABFFD7FFDBAC65FD1587606FEE" box="[526,806,661,687]" italics="true" pageId="15" pageNumber="16">Diatomella balfouriana</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C414D3AFFD7FFDBAD09FD1580226FEE" box="[866,1124,661,687]" class="Bacillariophyceae" family="Achnanthaceae" genus="Diatomella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="16" phylum="Ochrophyta" rank="species" species="colonialis">
|
||
<emphasis id="B935EAABFFD7FFDBAD09FD1580226FEE" box="[866,1124,661,687]" italics="true" pageId="15" pageNumber="16">Diatomella colonialis</emphasis>
|
||
</taxonomicName>
|
||
. The presence in other samples needs to be confirmed with SEM observations.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |