350 lines
69 KiB
XML
350 lines
69 KiB
XML
<document id="897780D81086B8987299E5F1558D11F8" ID-CLB-Dataset="298609" ID-DOI="10.1515/bot-2023-0065" ID-GBIF-Dataset="53f2453d-50db-413d-b71e-9184c96fd72b" ID-ISSN="1437-4323" ID-Zenodo-Dep="11360370" IM.bibliography_approvedBy="valdenar" IM.illustrations_approvedBy="valdenar" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="valdenar" checkinTime="1716848455815" checkinUser="felipe" docAuthor="Al-Handal, Adil Y., Ashworth, Matt P. & Wulff, Angela" docDate="2024" docId="597987FC152A832AB27BF90AFCD9F8B4" docLanguage="en" docName="BotMar.67.1.51-60.pdf" docOrigin="Botanica Marina (Warsaw, Poland) 67 (1)" docSource="http://dx.doi.org/10.1515/bot-2023-0065" docStyle="DocumentStyle:852F6101A3F2630EFBDAB42A7703A325.2:BotMar.2015-.journal_article.open" docStyleId="852F6101A3F2630EFBDAB42A7703A325" docStyleName="BotMar.2015-.journal_article.open" docStyleVersion="2" docTitle="Craspedostauros lateralis Al-Handal, Ashworth and A. Wulff 2024, sp. nov." docType="treatment" docVersion="6" lastPageNumber="54" masterDocId="A540FF84152B8329B143FF86FFA6FFEA" masterDocTitle="A new species of Craspedostauros (Bacillariophyceae) from the west coast of Sweden, with taxonomic and ecological notes on Craspedostauros laevissimus" masterLastPageNumber="60" masterPageNumber="51" pageNumber="52" updateTime="1718659956818" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="C224FC4E35C2422CB39F159BBD3EE7B0">A new species of Craspedostauros (Bacillariophyceae) from the west coast of Sweden, with taxonomic and ecological notes on Craspedostauros laevissimus</mods:title>
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<mods:namePart id="940E9240BC0BC52258C3B768B357A46D">Al-Handal, Adil Y.</mods:namePart>
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<mods:namePart id="1A420119A804186781940E58D134EFC1">Ashworth, Matt P.</mods:namePart>
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<mods:namePart id="F3FE6C67B68400AEA0ED8E51856DEDF4">Wulff, Angela</mods:namePart>
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<mods:typeOfResource id="5734647D0A85CE76338B11A3A929BCFB">text</mods:typeOfResource>
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<mods:title id="0ACF8903CEFD5F5D0910E7A659014850">Botanica Marina</mods:title>
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<mods:date id="EA1761FDFAB65E84F475F905632A8E38">2024</mods:date>
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<mods:title id="4DA86FBE71D83E4505D71A5FA1D3FA80">Warsaw, Poland</mods:title>
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<mods:number id="CB141F7131AD91CAB2C7ED566BE189FF">2024-01-05</mods:number>
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<treatment id="597987FC152A832AB27BF90AFCD9F8B4" ID-DOI="http://doi.org/10.5281/zenodo.11582342" ID-GBIF-Taxon="233217102" ID-Zenodo-Dep="11582342" LSID="urn:lsid:plazi:treatment:597987FC152A832AB27BF90AFCD9F8B4" httpUri="http://treatment.plazi.org/id/597987FC152A832AB27BF90AFCD9F8B4" lastPageId="3" lastPageNumber="54" pageId="1" pageNumber="52">
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<subSubSection id="99CA6561152A8328B27BF90AFB0EF92C" pageId="1" pageNumber="52" type="nomenclature">
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<paragraph id="D16F36EA152A8328B27BF90AFB0EF92C" blockId="1.[824,1452,1676,1942]" pageId="1" pageNumber="52">
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<heading id="8A278186152A8328B27BF90AFB0EF92C" centered="true" fontSize="9" level="2" pageId="1" pageNumber="52" reason="4">
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<emphasis id="E3A4EAF8152A8328B27BF90AFC72F92F" bold="true" pageId="1" pageNumber="52">
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<taxonomicName id="16D04D69152A8328B27BF90AFCD1F92C" authority="Al-Handal, Ashworth and A. Wulff" authorityName="Al-Handal, Ashworth and A. Wulff" authorityYear="2024" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="1" pageNumber="52" phylum="Ochrophyta" rank="species" species="lateralis" status="sp. nov.">
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<emphasis id="E3A4EAF8152A8328B27BF90AFBC3F94E" bold="true" box="[824,1125,1676,1700]" italics="true" pageId="1" pageNumber="52">Craspedostauros lateralis</emphasis>
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Al-Handal, Ashworth and A. Wulff
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</taxonomicName>
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<taxonomicNameLabel id="F8975783152A8328B23EF936FC72F92F" box="[893,980,1712,1733]" pageId="1" pageNumber="52" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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(
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<figureCitation id="49EB2A6F152A8328B2A2F936FBFDF92F" box="[993,1115,1711,1734]" captionStart="Figures 1–17" captionStartId="2.[1018,1085,708,727]" captionTargetBox="[137,987,192,1072]" captionTargetId="figure-462@2.[136,988,191,1073]" captionTargetPageId="2" captionText="Figures 1–17: Light micrographs of Craspedostauros lateralis sp. nov. and C. cf. laevissimus of different sizes. (1–9) Craspedostauros lateralis. (1–8) Showing the distinct constriction of the valve and the shape of the stauros. (9) A small valve with elliptic outline.(10–17) Craspedostauros cf.laevissimus. (10–12) Valves with parallel margins. (13, 14) Valves with slightly inflated valve halves. (15) Valve with slightly swollen at the centre. (16) Small elliptic valve. (17) Frustule in girdle view showing constriction and cingular bands. Scale bars = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.11360372" httpUri="https://zenodo.org/record/11360372/files/figure.png" pageId="1" pageNumber="52">Figures 1–9</figureCitation>
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,
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<figureCitation id="49EB2A6F152A8328B525F936FB07F92C" box="[1126,1185,1711,1734]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="1" pageNumber="52">18–27</figureCitation>
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)
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="99CA6561152A832BB226F955FAE1F86B" lastPageId="2" lastPageNumber="53" pageId="1" pageNumber="52" type="description">
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<paragraph id="D16F36EA152A8328B226F955FA0AF87C" blockId="1.[824,1452,1676,1942]" pageId="1" pageNumber="52">
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<emphasis id="E3A4EAF8152A8328B226F955FA0DF902" bold="true" box="[869,1451,1746,1769]" pageId="1" pageNumber="52">
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||
Description:
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<emphasis id="E3A4EAF8152A8328B546F954FA0DF902" bold="true" box="[1029,1451,1746,1768]" italics="true" pageId="1" pageNumber="52">Light microscopy (LM) observations</emphasis>
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</emphasis>
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(
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<figureCitation id="49EB2A6F152A8328B27CF973FC1AF8E1" box="[831,956,1780,1803]" captionStart="Figures 1–17" captionStartId="2.[1018,1085,708,727]" captionTargetBox="[137,987,192,1072]" captionTargetId="figure-462@2.[136,988,191,1073]" captionTargetPageId="2" captionText="Figures 1–17: Light micrographs of Craspedostauros lateralis sp. nov. and C. cf. laevissimus of different sizes. (1–9) Craspedostauros lateralis. (1–8) Showing the distinct constriction of the valve and the shape of the stauros. (9) A small valve with elliptic outline.(10–17) Craspedostauros cf.laevissimus. (10–12) Valves with parallel margins. (13, 14) Valves with slightly inflated valve halves. (15) Valve with slightly swollen at the centre. (16) Small elliptic valve. (17) Frustule in girdle view showing constriction and cingular bands. Scale bars = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.11360372" httpUri="https://zenodo.org/record/11360372/files/figure.png" pageId="1" pageNumber="52">Figures 1–9</figureCitation>
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): Valves are linear to linear-lanceolate with a triangular constriction in the middle (
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<figureCitation id="49EB2A6F152A8328B5A8F89EFA39F8C4" box="[1259,1439,1816,1838]" captionStart="Figures 1–17" captionStartId="2.[1018,1085,708,727]" captionTargetBox="[137,987,192,1072]" captionTargetId="figure-462@2.[136,988,191,1073]" captionTargetPageId="2" captionText="Figures 1–17: Light micrographs of Craspedostauros lateralis sp. nov. and C. cf. laevissimus of different sizes. (1–9) Craspedostauros lateralis. (1–8) Showing the distinct constriction of the valve and the shape of the stauros. (9) A small valve with elliptic outline.(10–17) Craspedostauros cf.laevissimus. (10–12) Valves with parallel margins. (13, 14) Valves with slightly inflated valve halves. (15) Valve with slightly swollen at the centre. (16) Small elliptic valve. (17) Frustule in girdle view showing constriction and cingular bands. Scale bars = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.11360372" httpUri="https://zenodo.org/record/11360372/files/figure.png" pageId="1" pageNumber="52">Figures 1 and 3</figureCitation>
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). Valve margins are gradually tapering to rounded apices. Smaller valves appear narrowly elliptic (
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<figureCitation id="49EB2A6F152A8328B5B5F8DBFAF7F899" box="[1270,1361,1885,1907]" captionStart="Figures 1–17" captionStartId="2.[1018,1085,708,727]" captionTargetBox="[137,987,192,1072]" captionTargetId="figure-462@2.[136,988,191,1073]" captionTargetPageId="2" captionText="Figures 1–17: Light micrographs of Craspedostauros lateralis sp. nov. and C. cf. laevissimus of different sizes. (1–9) Craspedostauros lateralis. (1–8) Showing the distinct constriction of the valve and the shape of the stauros. (9) A small valve with elliptic outline.(10–17) Craspedostauros cf.laevissimus. (10–12) Valves with parallel margins. (13, 14) Valves with slightly inflated valve halves. (15) Valve with slightly swollen at the centre. (16) Small elliptic valve. (17) Frustule in girdle view showing constriction and cingular bands. Scale bars = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.11360372" httpUri="https://zenodo.org/record/11360372/files/figure.png" pageId="1" pageNumber="52">Figure 8</figureCitation>
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). Valves are 34–81 μm long and 8.5–10 μm wide in mid-valve (
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<emphasis id="E3A4EAF8152A8328B427F806FAD7F87F" bold="true" box="[1380,1393,1920,1941]" italics="true" pageId="1" pageNumber="52">n</emphasis>
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= 35).
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</paragraph>
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<caption id="85AF66621529832BB2B9FD42FB38FBDC" ID-DOI="http://doi.org/10.5281/zenodo.11360372" ID-Zenodo-Dep="11360372" httpUri="https://zenodo.org/record/11360372/files/figure.png" pageId="2" pageNumber="53" startId="2.[1018,1085,708,727]" targetBox="[137,987,192,1072]" targetPageId="2" targetType="figure">
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<paragraph id="D16F36EA1529832BB2B9FD42FAFFFBF3" blockId="2.[1018,1405,708,1078]" pageId="2" pageNumber="53">
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<emphasis id="E3A4EAF81529832BB2B9FD42FBD6FD3D" bold="true" box="[1018,1136,708,727]" pageId="2" pageNumber="53">Figures 1–17:</emphasis>
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Light micrographs of
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<taxonomicName id="16D04D691529832BB2B9FD67FB63FD1E" authority="Al-Handal & Ashworth & Wulff, 2024" authorityName="Al-Handal & Ashworth & Wulff" authorityYear="2024" box="[1018,1221,737,756]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="2" pageNumber="53" phylum="Ochrophyta" rank="species" species="lateralis" status="sp. nov.">
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<emphasis id="E3A4EAF81529832BB2B9FD67FB63FD1E" box="[1018,1221,737,756]" italics="true" pageId="2" pageNumber="53">Craspedostauros lateralis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="F89757831529832BB588FD67FAA9FD1E" box="[1227,1295,737,756]" pageId="2" pageNumber="53" rank="species">sp. nov.</taxonomicNameLabel>
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and
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<taxonomicName id="16D04D691529832BB47BFD67FBF3FCF8" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" isUncertain="true" kingdom="Chromista" order="Naviculales" pageId="2" pageNumber="53" phylum="Ochrophyta" rank="species" species="laevissimus">
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<emphasis id="E3A4EAF81529832BB47BFD67FAEFFD1E" box="[1336,1353,737,756]" italics="true" pageId="2" pageNumber="53">C.</emphasis>
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cf.
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<emphasis id="E3A4EAF81529832BB2B9FD79FBF3FCF8" box="[1018,1109,767,786]" italics="true" pageId="2" pageNumber="53">laevissimus</emphasis>
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</taxonomicName>
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of different sizes. (1–9)
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<taxonomicName id="16D04D691529832BB2B9FC9AFB63FCC5" authorityName="Al-Handal & Ashworth & Wulff" authorityYear="2024" box="[1018,1221,796,815]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="2" pageNumber="53" phylum="Ochrophyta" rank="species" species="lateralis">
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||
<emphasis id="E3A4EAF81529832BB2B9FC9AFB63FCC5" box="[1018,1221,796,815]" italics="true" pageId="2" pageNumber="53">Craspedostauros lateralis</emphasis>
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</taxonomicName>
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. (1–8) Showing the distinct constriction of the valve and the shape of the stauros. (9) A small valve with elliptic outline.(10–17)
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<taxonomicName id="16D04D691529832BB53FFCF5FADEFC6C" box="[1148,1400,883,902]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" isUncertain="true" kingdom="Chromista" order="Naviculales" pageId="2" pageNumber="53" phylum="Ochrophyta" rank="species" species="laevissimus">
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||
<emphasis id="E3A4EAF81529832BB53FFCF5FAA4FC6C" box="[1148,1282,883,902]" italics="true" pageId="2" pageNumber="53">Craspedostauros</emphasis>
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cf.
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<emphasis id="E3A4EAF81529832BB45EFCF5FADEFC6C" box="[1309,1400,883,902]" italics="true" pageId="2" pageNumber="53">laevissimus</emphasis>
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</taxonomicName>
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. (10–12) Valves with parallel margins. (13, 14) Valves with slightly inflated valve halves. (15) Valve with slightly swollen at the centre. (16) Small elliptic valve. (17) Frustule in girdle view showing constriction and cingular bands.
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</paragraph>
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<paragraph id="D16F36EA1529832BB2B9FBA5FB38FBDC" blockId="2.[1018,1405,708,1078]" box="[1018,1182,1059,1078]" pageId="2" pageNumber="53">Scale bars = 10 μm.</paragraph>
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</caption>
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<paragraph id="D16F36EA1529832BB1CBFBF5FAE1F86B" blockId="2.[136,764,1139,1921]" lastBlockId="2.[794,1422,1139,1921]" pageId="2" pageNumber="53">
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The axial area is very narrow and linear. The central area is narrow, appearing as a laterally dilated diamond and forming fascia reaching the constricted valve margin. Raphe is faintly visible in LM, particularly near the central area, due to valve curvature. Striae discernible in LM,
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<quantity id="16289B0F1529832BB382FB7BFF38FADC" metricMagnitude="-1" metricUnit="m" metricValue="5.588" metricValueMax="6.35" metricValueMin="4.826" pageId="2" pageNumber="53" unit="in" value="22.0" valueMax="25.0" valueMin="19.0">19–25 in</quantity>
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10 μm (
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<figureCitation id="49EB2A6F1529832BB1ACFAA6FE35FADC" box="[239,403,1312,1334]" captionStart="Figures 1–17" captionStartId="2.[1018,1085,708,727]" captionTargetBox="[137,987,192,1072]" captionTargetId="figure-462@2.[136,988,191,1073]" captionTargetPageId="2" captionText="Figures 1–17: Light micrographs of Craspedostauros lateralis sp. nov. and C. cf. laevissimus of different sizes. (1–9) Craspedostauros lateralis. (1–8) Showing the distinct constriction of the valve and the shape of the stauros. (9) A small valve with elliptic outline.(10–17) Craspedostauros cf.laevissimus. (10–12) Valves with parallel margins. (13, 14) Valves with slightly inflated valve halves. (15) Valve with slightly swollen at the centre. (16) Small elliptic valve. (17) Frustule in girdle view showing constriction and cingular bands. Scale bars = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.11360372" httpUri="https://zenodo.org/record/11360372/files/figure.png" pageId="2" pageNumber="53">Figures 6 and 8</figureCitation>
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). The junction line between valve face and mantle is either invisible or appear as a very narrow line on both sides of the valve (
|
||
<figureCitation id="49EB2A6F1529832BB36DFAE3FD2EFA90" box="[558,648,1381,1403]" captionStart="Figures 1–17" captionStartId="2.[1018,1085,708,727]" captionTargetBox="[137,987,192,1072]" captionTargetId="figure-462@2.[136,988,191,1073]" captionTargetPageId="2" captionText="Figures 1–17: Light micrographs of Craspedostauros lateralis sp. nov. and C. cf. laevissimus of different sizes. (1–9) Craspedostauros lateralis. (1–8) Showing the distinct constriction of the valve and the shape of the stauros. (9) A small valve with elliptic outline.(10–17) Craspedostauros cf.laevissimus. (10–12) Valves with parallel margins. (13, 14) Valves with slightly inflated valve halves. (15) Valve with slightly swollen at the centre. (16) Small elliptic valve. (17) Frustule in girdle view showing constriction and cingular bands. Scale bars = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.11360372" httpUri="https://zenodo.org/record/11360372/files/figure.png" pageId="2" pageNumber="53">Figure 7</figureCitation>
|
||
).
|
||
<emphasis id="E3A4EAF81529832BB3D8FAE3FDE4FA77" bold="true" italics="true" pageId="2" pageNumber="53">
|
||
Scanning electron microscopy (
|
||
<collectionCode id="B7C1AE2F1529832BB034FA01FE01FA76" box="[375,423,1415,1436]" pageId="2" pageNumber="53">SEM</collectionCode>
|
||
) observations
|
||
</emphasis>
|
||
(
|
||
<figureCitation id="49EB2A6F1529832BB315FA01FD57FA77" box="[598,753,1414,1437]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figures 18–27</figureCitation>
|
||
): Externally, the valve face is weakly undulate with a gradually bending mantle. The stauros and fascia are extended at the constricted part of the valve to form a distinctive silica flap (
|
||
<figureCitation id="49EB2A6F1529832BB042F997FECCF9C2" box="[257,362,1553,1576]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 27</figureCitation>
|
||
). The valve poles at the distal raphe ending are devoid of striae except on the apical part of the mantle where few rows of areolae are seen (
|
||
<figureCitation id="49EB2A6F1529832BB31DF9D0FD62F987" box="[606,708,1622,1645]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 23</figureCitation>
|
||
). The axial area is very narrow and straight (
|
||
<figureCitation id="49EB2A6F1529832BB311F9FFFD1BF965" box="[594,701,1657,1679]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 19</figureCitation>
|
||
). The central area is narrow and transversely elongated, slightly raised above valve face which forms a facia reaching valve margin (
|
||
<figureCitation id="49EB2A6F1529832BB1AFF967FEFEF91D" box="[236,344,1761,1783]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 21</figureCitation>
|
||
). The raphe is filiform and slightly undulating towards the central area but becoming straight on the rest of the valve (
|
||
<figureCitation id="49EB2A6F1529832BB0D4F8A0FDF1F8D6" box="[407,599,1830,1852]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figures 21 and 23</figureCitation>
|
||
). The proximal raphe endings are straight and elongated (
|
||
<figureCitation id="49EB2A6F1529832BB31CF8CEFD60F8B4" box="[607,710,1864,1886]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 21</figureCitation>
|
||
), the distal endings are bent at 90° angle (
|
||
<figureCitation id="49EB2A6F1529832BB35BF8EDFD26F86B" box="[536,640,1899,1921]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 23</figureCitation>
|
||
). There are two irregular, linear lanceolate hyaline areas marking the junction line between valve face and the mantle (
|
||
<figureCitation id="49EB2A6F1529832BB46BFB13FA2CFB41" box="[1320,1418,1173,1195]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 21</figureCitation>
|
||
, arrows). These are wide around the central area and becoming very straight and narrow towards the apices. The valve part between the hyaline areas and the axial area is slightly depressed (
|
||
<figureCitation id="49EB2A6F1529832BB2AAFAA6FB0AFADC" box="[1001,1196,1311,1334]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figures 21 and 25</figureCitation>
|
||
). The striae are uniseriate, parallel at the centre and convergent near the apices (
|
||
<figureCitation id="49EB2A6F1529832BB263FAE3FC27FA91" box="[800,897,1381,1403]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 23</figureCitation>
|
||
). The cribrate areolae are larger on both sides of the axial area,
|
||
<quantity id="16289B0F1529832BB2C9FA01FC46FA77" box="[906,992,1414,1437]" metricMagnitude="0" metricUnit="m" metricValue="1.2446" metricValueMax="1.27" metricValueMin="1.2192" pageId="2" pageNumber="53" unit="in" value="49.0" valueMax="50.0" valueMin="48.0">48–50 in</quantity>
|
||
10 μm, slightly becoming smaller towards the lateral hyaline areas (
|
||
<figureCitation id="49EB2A6F1529832BB568FA2CFB1CFA55" box="[1067,1210,1450,1472]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figures 21, 23</figureCitation>
|
||
, and 25). Cribra are formed of 4–5 small peripheral pores (
|
||
<figureCitation id="49EB2A6F1529832BB58BFA4AFA88FA09" box="[1224,1326,1484,1507]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 25</figureCitation>
|
||
), central pores are absent. Internally, the area between the junction lines is depressed and formed of elongated areolae (
|
||
<figureCitation id="49EB2A6F1529832BB465F997FCC4F9A0" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figures 22 and 24</figureCitation>
|
||
). These elongated areolae resulted from combing 2–4 adjacent quadrangular areolae (
|
||
<figureCitation id="49EB2A6F1529832BB529F9D0FB69F987" box="[1130,1231,1622,1645]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 24</figureCitation>
|
||
). The central area widens transversely and apically at the valve margin forming a spectacular triangular fascia (
|
||
<figureCitation id="49EB2A6F1529832BB518F91AFB1AF95B" box="[1115,1212,1692,1714]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 20</figureCitation>
|
||
, arrow). The stauros is distinct and occupies the middle part of the central area between the junction lines (
|
||
<figureCitation id="49EB2A6F1529832BB576F967FB3EF91D" box="[1077,1176,1761,1783]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 20</figureCitation>
|
||
). The central part of the stauros is dome-like helictoglossa which is interrupted by a blunt groove connecting the raphe proximal endings (
|
||
<figureCitation id="49EB2A6F1529832BB263F8CEFC24F8B7" box="[800,898,1864,1886]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 27</figureCitation>
|
||
, arrow). The distal raphe endings are weakly bent and terminate on a shallow helictoglossae (
|
||
<figureCitation id="49EB2A6F1529832BB599F8EDFA9BF86B" box="[1242,1341,1899,1921]" captionStart="Figures 18–27" captionStartId="3.[1047,1114,621,640]" captionTargetBox="[169,1016,194,1247]" captionTargetId="figure-305@3.[166,1017,191,1249]" captionTargetPageId="3" captionText="Figures 18–27: Scanning electron micrographs of Craspedostauros lateralis sp. nov. (18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm." figureDoi="http://doi.org/10.5281/zenodo.11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="2" pageNumber="53">Figure 22</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="85AF66621528832AB554FDEBFB49FB0C" ID-DOI="http://doi.org/10.5281/zenodo.11360374" ID-Zenodo-Dep="11360374" httpUri="https://zenodo.org/record/11360374/files/figure.png" pageId="3" pageNumber="54" startId="3.[1047,1114,621,640]" targetBox="[169,1016,194,1247]" targetPageId="3" targetType="figure">
|
||
<paragraph id="D16F36EA1528832AB554FDEBFA2EFC80" blockId="3.[1047,1451,621,1254]" pageId="3" pageNumber="54">
|
||
<emphasis id="E3A4EAF81528832AB554FDEBFB3FFD6A" bold="true" box="[1047,1177,621,640]" pageId="3" pageNumber="54">Figures 18–27:</emphasis>
|
||
Scanning electron micrographs of
|
||
<taxonomicName id="16D04D691528832AB56DFD0CFB5FFD77" authority="Al-Handal & Ashworth & Wulff, 2024" authorityName="Al-Handal & Ashworth & Wulff" authorityYear="2024" box="[1070,1273,650,669]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="lateralis" status="sp. nov.">
|
||
<emphasis id="E3A4EAF81528832AB56DFD0CFB5FFD77" box="[1070,1273,650,669]" italics="true" pageId="3" pageNumber="54">Craspedostauros lateralis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="F89757831528832AB5BCFD0CFAE5FD77" box="[1279,1347,650,669]" pageId="3" pageNumber="54" rank="species">sp. nov.</taxonomicNameLabel>
|
||
(18) Valve in internal view. (19) External side of the valve. (20) Middle part of the valve interior showing the depressed areas on both sides of the axial area (arrows) and the characteristic triangular constriction of the valve which is an extension of the central area (fascia). (21) The two irregular hyaline areas (arrows) which form
|
||
</paragraph>
|
||
<paragraph id="D16F36EA1528832AB554FCF2FB49FB0C" blockId="3.[1047,1451,621,1254]" pageId="3" pageNumber="54">the junction line between valve face and the mantle. (22) Internal side of the valve pole exhibiting the distal raphe ending. (23) External side of the valve pole with the curved distal raphe ending.(24) Elongated areolae on both sides of the axial area with numerous cribral pores. (25) External openings of the areolae with 4–5 peripheral cribral pores. (26) Valve in girdle view. (27) Internal side of the valve showing the folded marginal silica flap and the dome-like central helicoglossa (arrow).Scale bars:18,19,26) 8 μm; (20,21,22,23, 27) 2 μm; (24, 25) 0.8 μm.</paragraph>
|
||
</caption>
|
||
<subSubSection id="99CA65611528832AB197FA99FEC8F9EE" pageId="3" pageNumber="54" type="materials_examined">
|
||
<paragraph id="D16F36EA1528832AB197FA99FD69FA55" blockId="3.[166,794,1311,1886]" pageId="3" pageNumber="54">
|
||
<materialsCitation id="61B83CB71528832AB197FA99FE3DFA77" ID-GBIF-Occurrence="4879953302" collectionCode="BGBM" country="Germany" location="Berlin" pageId="3" pageNumber="54" specimenCount="1" stateProvince="Berlin" typeStatus="holotype">
|
||
<emphasis id="E3A4EAF81528832AB197FA99FEE6FADE" bold="true" box="[212,320,1311,1332]" pageId="3" pageNumber="54">
|
||
<typeStatus id="0E6B88481528832AB197FA99FE9AFADE" box="[212,316,1311,1332]" pageId="3" pageNumber="54" type="holotype">Holotype</typeStatus>
|
||
:
|
||
</emphasis>
|
||
Permanent slide containing frustules of
|
||
<taxonomicName id="16D04D691528832AB245FA99FF5AFABD" authority="Al-Handal & Ashworth & Wulff, 2024" authorityName="Al-Handal & Ashworth & Wulff" authorityYear="2024" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="lateralis" status="sp. nov.">
|
||
<emphasis id="E3A4EAF81528832AB245FA99FCB2FADE" bold="true" box="[774,788,1311,1332]" italics="true" pageId="3" pageNumber="54">C</emphasis>
|
||
.
|
||
<emphasis id="E3A4EAF81528832AB1E5FAC7FF5AFABD" bold="true" box="[166,252,1345,1367]" italics="true" pageId="3" pageNumber="54">lateralis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="F89757831528832AB043FAC4FEE9FABD" box="[256,335,1346,1367]" pageId="3" pageNumber="54" rank="species">sp. nov.</taxonomicNameLabel>
|
||
are deposited in the Botanischer Garten und Botanischer Museum (
|
||
<collectionCode id="B7C1AE2F1528832AB0E9FAE2FE56FA90" box="[426,496,1380,1402]" pageId="3" pageNumber="54">BGBM</collectionCode>
|
||
),
|
||
<collectingRegion id="1314F8081528832AB34EFAE2FDF6FA90" box="[525,592,1380,1402]" country="Germany" name="Berlin" pageId="3" pageNumber="54">Berlin</collectingRegion>
|
||
,
|
||
<collectingCountry id="A9C7767A1528832AB325FAE2FD6EFA93" box="[614,712,1380,1401]" name="Germany" pageId="3" pageNumber="54">Germany</collectingCountry>
|
||
under accession B 40 0046319
|
||
</materialsCitation>
|
||
.
|
||
<typeStatus id="0E6B88481528832AB0E5FA01FDA3FA77" box="[422,517,1415,1437]" pageId="3" pageNumber="54" type="holotype">Holotype</typeStatus>
|
||
illustrated in
|
||
<figureCitation id="49EB2A6F1528832AB3DFFA01FCB0FA76" box="[668,790,1414,1437]" captionStart="Figures 1–17" captionStartId="2.[1018,1085,708,727]" captionTargetBox="[137,987,192,1072]" captionTargetId="figure-462@2.[136,988,191,1073]" captionTargetPageId="2" captionText="Figures 1–17: Light micrographs of Craspedostauros lateralis sp. nov. and C. cf. laevissimus of different sizes. (1–9) Craspedostauros lateralis. (1–8) Showing the distinct constriction of the valve and the shape of the stauros. (9) A small valve with elliptic outline.(10–17) Craspedostauros cf.laevissimus. (10–12) Valves with parallel margins. (13, 14) Valves with slightly inflated valve halves. (15) Valve with slightly swollen at the centre. (16) Small elliptic valve. (17) Frustule in girdle view showing constriction and cingular bands. Scale bars = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.11360372" httpUri="https://zenodo.org/record/11360372/files/figure.png" pageId="3" pageNumber="54">Figures 1–8</figureCitation>
|
||
. Phycobank registration http://phycobank.org/103978.
|
||
</paragraph>
|
||
<paragraph id="D16F36EA1528832AB197FA4AFEC8F9EE" blockId="3.[166,794,1311,1886]" pageId="3" pageNumber="54">
|
||
<emphasis id="E3A4EAF81528832AB197FA4AFECFFA08" bold="true" box="[212,361,1484,1506]" pageId="3" pageNumber="54">Type locality:</emphasis>
|
||
<materialsCitation id="61B83CB71528832AB02DFA4AFECFF9EE" ID-GBIF-Occurrence="4879953301" country="Sweden" latitude="57.65889" location="Saltholmen" longLatPrecision="17" longitude="11.839167" pageId="3" pageNumber="54" specimenCount="1">
|
||
<location id="D40F60311528832AB02DFA4AFE41FA08" LSID="urn:lsid:plazi:treatment:597987FC152A832AB27BF90AFCD9F8B4:D40F60311528832AB02DFA4AFE41FA08" box="[366,487,1484,1506]" country="Sweden" latitude="57.65889" longLatPrecision="17" longitude="11.839167" name="Saltholmen" pageId="3" pageNumber="54">Saltholmen</location>
|
||
, west coast of
|
||
<collectingCountry id="A9C7767A1528832AB338FA4AFD6BFA08" box="[635,717,1484,1506]" name="Sweden" pageId="3" pageNumber="54">Sweden</collectingCountry>
|
||
(
|
||
<geoCoordinate id="B4E4502D1528832AB39AFA4DFF79F9EE" degrees="57" direction="north" minutes="39" orientation="latitude" pageId="3" pageNumber="54" precision="15" seconds="32" value="57.65889">57° 39′ 32″ N</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="B4E4502D1528832AB1AAFA68FEC4F9EE" box="[233,354,1517,1541]" degrees="11" direction="east" minutes="50" orientation="longitude" pageId="3" pageNumber="54" precision="15" seconds="21" value="11.839167">11° 50′ 21″ E</geoCoordinate>
|
||
)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="99CA65611528832AB197F997FD8DF9A3" pageId="3" pageNumber="54" type="etymology">
|
||
<paragraph id="D16F36EA1528832AB197F997FD8DF9A3" blockId="3.[166,794,1311,1886]" pageId="3" pageNumber="54">
|
||
<emphasis id="E3A4EAF81528832AB197F997FEF7F9CC" bold="true" box="[212,337,1553,1574]" pageId="3" pageNumber="54">Etymology:</emphasis>
|
||
The epithet refers to the lateral hyaline areas on both sides of the axial area.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="99CA65611528832AB197F9D0FC07FA55" pageId="3" pageNumber="54" type="biology_ecology">
|
||
<paragraph id="D16F36EA1528832AB197F9D0FC07FA55" blockId="3.[166,794,1311,1886]" lastBlockId="3.[824,1452,1311,1886]" pageId="3" pageNumber="54">
|
||
<emphasis id="E3A4EAF81528832AB197F9D0FDE0F986" bold="true" box="[212,582,1622,1644]" pageId="3" pageNumber="54">
|
||
Ecology:
|
||
<taxonomicName id="16D04D691528832AB075F9D0FDE0F986" authorityName="Al-Handal & Ashworth & Wulff" authorityYear="2024" box="[310,582,1622,1644]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="lateralis">
|
||
<emphasis id="E3A4EAF81528832AB075F9D0FDE0F986" bold="true" box="[310,582,1622,1644]" italics="true" pageId="3" pageNumber="54">Craspedostauros lateralis</emphasis>
|
||
</taxonomicName>
|
||
</emphasis>
|
||
is a marine species, found epiphytic on the brown macrophyte
|
||
<taxonomicName id="16D04D691528832AB3C4F9FEFCBCF964" box="[647,794,1656,1678]" class="Phaeophyceae" family="Chordariaceae" genus="Mesogloia" kingdom="Chromista" order="Chordariales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="undetermined">
|
||
<emphasis id="E3A4EAF81528832AB3C4F9FEFD55F964" bold="true" box="[647,755,1656,1678]" italics="true" pageId="3" pageNumber="54">Mesogloia</emphasis>
|
||
sp.
|
||
</taxonomicName>
|
||
attached to rocks. Temperature at time of collection was 10.5 °C and salinity 27 psu. It was a rare species, constituted 0.8 % of the total diatom community epiphytic on
|
||
<taxonomicName id="16D04D691528832AB3EDF966FF62F8F2" class="Phaeophyceae" family="Chordariaceae" genus="Mesogloia" kingdom="Chromista" order="Chordariales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="undetermined">
|
||
<emphasis id="E3A4EAF81528832AB3EDF966FCBCF91C" bold="true" box="[686,794,1760,1782]" italics="true" pageId="3" pageNumber="54">Mesogloia</emphasis>
|
||
sp.
|
||
</taxonomicName>
|
||
Other diatom taxa found associated with
|
||
<taxonomicName id="16D04D691528832AB3E0F885FCBCF8F2" authorityName="Al-Handal & Ashworth & Wulff" authorityYear="2024" box="[675,794,1794,1816]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="lateralis">
|
||
<emphasis id="E3A4EAF81528832AB3E0F885FCBCF8F2" bold="true" box="[675,794,1794,1816]" italics="true" pageId="3" pageNumber="54">C. lateralis</emphasis>
|
||
</taxonomicName>
|
||
were
|
||
<taxonomicName id="16D04D691528832AB1ABF8A3FDE5F8D1" authority="C. Agardh" authorityName="C. Agardh" box="[232,579,1829,1851]" class="Bacillariophyceae" family="Achnanthaceae" genus="Achnanthes" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="brevipes">
|
||
<emphasis id="E3A4EAF81528832AB1ABF8A3FE6FF8D1" bold="true" box="[232,457,1829,1851]" italics="true" pageId="3" pageNumber="54">Achnanthes brevipes</emphasis>
|
||
C. Agardh
|
||
</taxonomicName>
|
||
(12.6 %),
|
||
<taxonomicName id="16D04D691528832AB3F1F8A3FD18F8B4" authority="(C. Agardh) D. M. Williams and Round" authorityName="D. M. Williams and Round" baseAuthorityName="C. Agardh" class="Bacillariophyceae" family="Fragilariaceae" genus="Tabularia" higherTaxonomySource="GBIF" kingdom="Chromista" order="Fragilariales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="fasciculata">
|
||
<emphasis id="E3A4EAF81528832AB3F1F8A3FEBFF8B7" bold="true" italics="true" pageId="3" pageNumber="54">Tabularia fasciculata</emphasis>
|
||
(C. Agardh) D.M. Williams and Round
|
||
</taxonomicName>
|
||
(11.3 %),
|
||
<taxonomicName id="16D04D691528832AB27BFA99FB58FADF" authority="(W. Smith) Reimer" authorityName="Reimer" authorityYear="1975" baseAuthorityName="W. Smith" box="[824,1278,1311,1333]" class="Bacillariophyceae" family="Entomoneidaceae" genus="Entomoneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Surirellales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="paludosa">
|
||
<emphasis id="E3A4EAF81528832AB27BFA99FB86FADF" bold="true" box="[824,1056,1311,1333]" italics="true" pageId="3" pageNumber="54">Entomoneis paludosa</emphasis>
|
||
(W. Smith) Reimer
|
||
</taxonomicName>
|
||
(6.2 %),
|
||
<taxonomicName id="16D04D691528832AB420FA99FBD5FAB2" authority="(Hickie) Bukhtiyarova" authorityName="Bukhtiyarova" baseAuthorityName="Hickie" class="Bacillariophyceae" family="Naviculaceae" genus="Haslea" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="spicula">
|
||
<emphasis id="E3A4EAF81528832AB420FA99FC25FABD" bold="true" italics="true" pageId="3" pageNumber="54">Haslea spicula</emphasis>
|
||
(Hickie) Bukhtiyarova
|
||
</taxonomicName>
|
||
(3.4 %),
|
||
<taxonomicName id="16D04D691528832AB58AFAC7FAFAFABD" box="[1225,1372,1345,1367]" class="Bacillariophyceae" family="Naviculaceae" genus="Amphora" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="undetermined">
|
||
<emphasis id="E3A4EAF81528832AB58AFAC7FA8AFABD" bold="true" box="[1225,1324,1345,1367]" italics="true" pageId="3" pageNumber="54">Amphora</emphasis>
|
||
spp.
|
||
</taxonomicName>
|
||
(2.5 %),
|
||
<taxonomicName id="16D04D691528832AB27BFAE2FB63FA90" authority="(Kutzing) W. Smith" authorityName="W. Smith" baseAuthorityName="Kutzing" box="[824,1221,1380,1402]" class="Insecta" family="Menoponidae" genus="Nitzschia" kingdom="Animalia" order="Psocodea" pageId="3" pageNumber="54" phylum="Arthropoda" rank="species" species="sigma">
|
||
<emphasis id="E3A4EAF81528832AB27BFAE2FC43FA93" bold="true" box="[824,997,1380,1402]" italics="true" pageId="3" pageNumber="54">Nitzschia sigma</emphasis>
|
||
(Kützing) W. Smith
|
||
</taxonomicName>
|
||
(1.8 %),
|
||
<taxonomicName id="16D04D691528832AB465FAE2FA0AFA90" box="[1318,1452,1380,1402]" class="Bacillariophyceae" family="Surirellaceae" genus="Surirella" kingdom="Chromista" order="Surirellales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="undetermined">
|
||
<emphasis id="E3A4EAF81528832AB465FAE2FA25FA90" bold="true" box="[1318,1411,1380,1402]" italics="true" pageId="3" pageNumber="54">Surirella</emphasis>
|
||
sp.
|
||
</taxonomicName>
|
||
(1.1 %), and several other taxa small taxa of
|
||
<taxonomicName id="16D04D691528832AB45EFA00FADDFA76" box="[1309,1403,1414,1436]" class="Bacillariophyceae" family="Naviculaceae" genus="Navicula" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="genus">
|
||
<emphasis id="E3A4EAF81528832AB45EFA00FADDFA76" bold="true" box="[1309,1403,1414,1436]" italics="true" pageId="3" pageNumber="54">Navicula</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="16D04D691528832AB27BFA2FFC3DFA55" authorityName="Baer" authorityYear="1826" box="[824,923,1449,1471]" class="Insecta" family="Menoponidae" genus="Nitzschia" kingdom="Animalia" order="Psocodea" pageId="3" pageNumber="54" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="E3A4EAF81528832AB27BFA2FFC3DFA55" bold="true" box="[824,923,1449,1471]" italics="true" pageId="3" pageNumber="54">Nitzschia</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="99CA65611528832AB226FA4AFCD9F8B4" pageId="3" pageNumber="54" type="diagnosis">
|
||
<paragraph id="D16F36EA1528832AB226FA4AFCD9F8B4" blockId="3.[824,1452,1311,1886]" pageId="3" pageNumber="54">
|
||
<emphasis id="E3A4EAF81528832AB226FA4AFBC3FA08" bold="true" box="[869,1125,1483,1506]" pageId="3" pageNumber="54">Differential diagnosis:</emphasis>
|
||
The marginal hyaline areas differentiate
|
||
<taxonomicName id="16D04D691528832AB28BFA68FB98F9EE" authorityName="Al-Handal & Ashworth & Wulff" authorityYear="2024" box="[968,1086,1518,1540]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="lateralis">
|
||
<emphasis id="E3A4EAF81528832AB28BFA68FB98F9EE" bold="true" box="[968,1086,1518,1540]" italics="true" pageId="3" pageNumber="54">C. lateralis</emphasis>
|
||
</taxonomicName>
|
||
from other taxa sharing similar narrow and constricted valves. This feature is not always visible in LM and
|
||
<taxonomicName id="16D04D691528832AB2B3F9B5FBC6F9A3" authorityName="Al-Handal & Ashworth & Wulff" authorityYear="2024" box="[1008,1120,1587,1609]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="lateralis">
|
||
<emphasis id="E3A4EAF81528832AB2B3F9B5FBC6F9A3" bold="true" box="[1008,1120,1587,1609]" italics="true" pageId="3" pageNumber="54">C. lateralis</emphasis>
|
||
</taxonomicName>
|
||
might be confused with related species such as
|
||
<taxonomicName id="16D04D691528832AB2B4F9D0FC2EF964" authority="(Grunow et A. Schmidt) E. J. Cox" authorityName="E. J. Cox" baseAuthorityName="Grunow et A. Schmidt" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="amphoides">
|
||
<emphasis id="E3A4EAF81528832AB2B4F9D0FB2DF986" bold="true" box="[1015,1163,1622,1644]" italics="true" pageId="3" pageNumber="54">C. amphoides</emphasis>
|
||
(Grunow
|
||
<emphasis id="E3A4EAF81528832AB444F9D0FABCF981" bold="true" box="[1287,1306,1622,1643]" italics="true" pageId="3" pageNumber="54">et</emphasis>
|
||
A. Schmidt) E.J. Cox
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="16D04D691528832AB2FFF9FEFAF9F964" authority="Majewska et Ashworth. It" authorityName="Majewska et Ashworth. It" box="[956,1375,1656,1678]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="macewanii">
|
||
<emphasis id="E3A4EAF81528832AB2FFF9FEFBEEF967" bold="true" box="[956,1096,1656,1677]" italics="true" pageId="3" pageNumber="54">C. macewanii</emphasis>
|
||
Majewska
|
||
<emphasis id="E3A4EAF81528832AB582F9FFFB72F964" bold="true" box="[1217,1236,1657,1678]" italics="true" pageId="3" pageNumber="54">et</emphasis>
|
||
Ashworth. It
|
||
</taxonomicName>
|
||
can be distinguished from
|
||
<taxonomicName id="16D04D691528832AB553F91DFB39F95A" box="[1040,1183,1690,1712]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="amphoides">
|
||
<emphasis id="E3A4EAF81528832AB553F91DFB39F95A" bold="true" box="[1040,1183,1690,1712]" italics="true" pageId="3" pageNumber="54">C. amphoides</emphasis>
|
||
</taxonomicName>
|
||
by having larger valves (34–85 μm compared to 28–45 μm), from
|
||
<taxonomicName id="16D04D691528832AB5B6F93BFAC1F938" box="[1269,1383,1725,1746]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="macewanii">
|
||
<emphasis id="E3A4EAF81528832AB5B6F93BFAC1F938" bold="true" box="[1269,1383,1725,1746]" italics="true" pageId="3" pageNumber="54">macewanii</emphasis>
|
||
</taxonomicName>
|
||
by its stria density (30–32 compared to
|
||
<quantity id="16289B0F1528832AB5DEF966FB55F91C" box="[1181,1267,1759,1782]" metricMagnitude="-1" metricUnit="m" metricValue="7.493" metricValueMax="7.874" metricValueMin="7.112" pageId="3" pageNumber="54" unit="in" value="29.5" valueMax="31.0" valueMin="28.0">28–31 in</quantity>
|
||
10 μm) and from
|
||
<taxonomicName id="16D04D691528832AB27BF885FC6FF8F2" box="[824,969,1794,1816]" class="Bacillariophyceae" family="Naviculaceae" genus="Craspedostauros" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="3" pageNumber="54" phylum="Ochrophyta" rank="species" species="amphoides">
|
||
<emphasis id="E3A4EAF81528832AB27BF885FC6FF8F2" bold="true" box="[824,969,1794,1816]" italics="true" pageId="3" pageNumber="54">C. amphoides</emphasis>
|
||
</taxonomicName>
|
||
by having larger valves and denser striae. Ultrastructural differences with related taxa are discussed below.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |