232 lines
46 KiB
XML
232 lines
46 KiB
XML
<document id="72157703E6833AAA8A72EE9D2A397309" 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="03E887AFFFC9FFC7AFCFFD9E80C26F2B" 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 saundersianus Goeyers & Van de Vijver 2020, sp. nov." docType="treatment" docVersion="5" lastPageNumber="20" 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="18" updateTime="1698844070407" updateUser="ExternalLinkService">
|
||
<mods:mods id="C182ADBC9C8150356420185C1AE33557" xmlns:mods="http://www.loc.gov/mods/v3">
|
||
<mods:titleInfo id="174A7A90EAFAA9491934984C6E25B5F8">
|
||
<mods:title id="8D658896707D2FF7BAC12B5B5B31424A">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>
|
||
</mods:titleInfo>
|
||
<mods:name id="2B1FE219F3D62730E241C0BCA5FFEAE3" type="personal">
|
||
<mods:role id="0BBE05F4EC55867E3DF04CD80C4205B3">
|
||
<mods:roleTerm id="DA4EFB2E03F6320575477A41A3DB9DE9">Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart id="47B3BA2643411A16EDBDEB0019A71B41">Goeyers, Charlotte</mods:namePart>
|
||
<mods:affiliation id="89D7B359DB975F1B61401040F938F8BC">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>
|
||
<mods:nameIdentifier id="41F579FE86169EFE3B0880DBFB23AEE5" type="email">goeyerscharlotte@hotmail.com</mods:nameIdentifier>
|
||
</mods:name>
|
||
<mods:name id="1F4F5F0056736152DAB0A15094E28A24" type="personal">
|
||
<mods:role id="32DB170EB2592FD430CB6213AA8601C0">
|
||
<mods:roleTerm id="2FAC5CD2D7284910A346D3564FB14890">Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart id="C328DE81F935034BCB5E4FA5FA913C8A">Vijver, Bart Van De</mods:namePart>
|
||
<mods:affiliation id="C74CAC5490E6E5F169FB090868DB8E9E">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>
|
||
<mods:nameIdentifier id="5091CBA0DB333825E2ABD674BBF7F88B" type="email">bart.vandevijver@plantentuinmeise.be</mods:nameIdentifier>
|
||
</mods:name>
|
||
<mods:typeOfResource id="80348898EC824344A89F39CEFEE19AB4">text</mods:typeOfResource>
|
||
<mods:relatedItem id="92F09EF8F5D6D06B4C57B8BF5D6F280B" type="host">
|
||
<mods:titleInfo id="DB78581585D1784C43E2CD11D2045A98">
|
||
<mods:title id="372C4B229FFF34F31AE2E37BF3D8474B">European Journal of Taxonomy</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:part id="12E4829F7E5D453D72C119E3DD5C8C05">
|
||
<mods:date id="44D26835B22BDA211EB3B097D773FF0A">2020</mods:date>
|
||
<mods:detail id="D7CAFE8E2268360AB27D6C1093757B55" type="pubDate">
|
||
<mods:number id="636C9ED51786DEF10E24771A4335A17D">2020-07-30</mods:number>
|
||
</mods:detail>
|
||
<mods:detail id="B415A5FA1D4A43E8CBF1AF97CB8CE919" type="volume">
|
||
<mods:number id="54803BE704CDBF44F975AA2BA3212ADB">694</mods:number>
|
||
</mods:detail>
|
||
<mods:extent id="0281A52CBA202EA22F6B2381AC59DFCB" unit="page">
|
||
<mods:start id="37495DF1F208726EEFBD08007EC6AE64">1</mods:start>
|
||
<mods:end id="B3109320EDCC06A82BF1B51D216E8271">30</mods:end>
|
||
</mods:extent>
|
||
</mods:part>
|
||
</mods:relatedItem>
|
||
<mods:classification id="6B266D13B4178F0EF9CB99A62CC258EF">journal article</mods:classification>
|
||
<mods:identifier id="50B205402751A0EAC6FBE4A2A82A1D54" type="CLB-Dataset">21375</mods:identifier>
|
||
<mods:identifier id="25B8CEAD53114D25CFFC84BABC6671FE" type="DOI">10.5852/ejt.2020.694</mods:identifier>
|
||
<mods:identifier id="FD1BAF2D2376ED6C39A65436814501AE" type="GBIF-Dataset">521cb733-cb6c-4b74-8c94-957e2ad22336</mods:identifier>
|
||
<mods:identifier id="11B705A17A7E7F71F000F000C262044D" type="Zenodo-Dep">3973347</mods:identifier>
|
||
</mods:mods>
|
||
<treatment id="03E887AFFFC9FFC7AFCFFD9E80C26F2B" ID-DOI="http://doi.org/10.5281/zenodo.4329150" ID-GBIF-Taxon="166095797" ID-Zenodo-Dep="4329150" LSID="urn:lsid:plazi:treatment:03E887AFFFC9FFC7AFCFFD9E80C26F2B" httpUri="http://treatment.plazi.org/id/03E887AFFFC9FFC7AFCFFD9E80C26F2B" lastPageId="19" lastPageNumber="20" pageId="17" pageNumber="18">
|
||
<subSubSection id="C35B6532FFC9FFC5AFCFFD9E87DB6F3E" pageId="17" pageNumber="18" type="nomenclature">
|
||
<paragraph id="8BFE36B9FFC9FFC5AFCFFD9E87DB6F3E" blockId="17.[420,1168,542,640]" pageId="17" pageNumber="18">
|
||
<heading id="D0B681D5FFC9FFC5AFCFFD9E80D66F78" box="[420,1168,542,569]" level="2" pageId="17" pageNumber="18">
|
||
<taxonomicName id="4C414D3AFFC9FFC5AFCFFD9E80686F79" authority="Goeyers & Van de Vijver" authorityName="Goeyers & Van de Vijver" authorityYear="2020" box="[420,1070,542,569]" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="17" pageNumber="18" phylum="Ochrophyta" rank="species" species="saundersianus" status="sp. nov.">
|
||
<emphasis id="B935EAABFFC9FFC5AFCFFD9E87466F78" bold="true" box="[420,768,542,569]" italics="true" pageId="17" pageNumber="18">Arcanodiscus saundersianus</emphasis>
|
||
Goeyers & Van de Vijver
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20657D0FFC9FFC5AA5DFD9F80D66F78" box="[1078,1168,543,569]" pageId="17" pageNumber="18" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</heading>
|
||
http://phycobank.org/
|
||
<date id="FFFF1079FFC9FFC5AD07FDC187826F1A" box="[876,964,577,603]" pageId="17" pageNumber="18" value="20-10-23">102320</date>
|
||
<figureCitation id="137A2A3CFFC9FFC5ACFCFDE5876C6FC1" box="[663,810,613,640]" 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="17" pageNumber="18">Figs 97–115</figureCitation>
|
||
,
|
||
<figureCitation id="137A2A3CFFC9FFC5AD5DFDE587DB6F3E" box="[822,925,613,639]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">132–138</figureCitation>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C35B6532FFC9FFC5AED6FD2680046E74" pageId="17" pageNumber="18" type="etymology">
|
||
<paragraph id="8BFE36B9FFC9FFC5AED6FD2685026F81" blockId="17.[189,324,678,704]" box="[189,324,678,704]" pageId="17" pageNumber="18">
|
||
<heading id="D0B681D5FFC9FFC5AED6FD2685026F81" bold="true" box="[189,324,678,704]" fontSize="11" level="3" pageId="17" pageNumber="18" reason="3">
|
||
<emphasis id="B935EAABFFC9FFC5AED6FD2685026F81" bold="true" box="[189,324,678,704]" pageId="17" pageNumber="18">Etymology</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFC9FFC5AED6FD5580046E74" blockId="17.[189,1398,725,822]" pageId="17" pageNumber="18">
|
||
The species is named in honour of our colleague Dr Krystyna Saunders (Australian Nuclear Science and Technology Organisation, Kirrawee,
|
||
<collectingCountry id="F3567629FFC9FFC5ACC2FD7887516E52" box="[681,791,760,787]" name="Australia" pageId="17" pageNumber="18">Australia</collectingCountry>
|
||
) to acknowledge her for her ecological and paleoecological diatom research on the sub-Antarctic islands in the Pacific Ocean.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C35B6532FFC9FFC5AED6FCDC856B6911" pageId="17" pageNumber="18" type="materials_examined">
|
||
<paragraph id="8BFE36B9FFC9FFC5AED6FCDC85EC6E37" blockId="17.[189,426,860,886]" box="[189,426,860,886]" pageId="17" pageNumber="18">
|
||
<heading id="D0B681D5FFC9FFC5AED6FCDC85EC6E37" bold="true" box="[189,426,860,886]" fontSize="11" level="3" pageId="17" pageNumber="18" reason="3">
|
||
<emphasis id="B935EAABFFC9FFC5AED6FCDC85EC6E37" bold="true" box="[189,426,860,886]" pageId="17" pageNumber="18">Material examined</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFC9FFC5AE81FC0B851A6EE4" blockId="17.[189,1382,907,969]" box="[234,348,907,933]" pageId="17" pageNumber="18">
|
||
<emphasis id="B935EAABFFC9FFC5AE81FC0B851A6EE4" bold="true" box="[234,348,907,933]" pageId="17" pageNumber="18">
|
||
<typeStatus id="54FA881BFFC9FFC5AE81FC0B851A6EE4" box="[234,348,907,933]" pageId="17" pageNumber="18" type="holotype">Holotype</typeStatus>
|
||
</emphasis>
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFC9FFC5AED6FC2E81206E88" blockId="17.[189,1382,907,969]" box="[189,1382,942,969]" pageId="17" pageNumber="18">
|
||
<materialsCitation id="3B293CE4FFC9FFC5AED6FC2E81206E88" ID-GBIF-Occurrence="2824214305" box="[189,1382,942,969]" collectingDate="1969-12-26" collectionCode="BAS" collectorName="D. Vitt" location="CAMPBELL ISLAND" pageId="17" pageNumber="18" specimenCode="BR-4581" specimenCount="1" typeStatus="holotype">
|
||
<location id="8E9E6062FFC9FFC5AED6FC2E858A6E89" LSID="urn:lsid:plazi:treatment:03E887AFFFC9FFC7AFCFFD9E80C26F2B:8E9E6062FFC9FFC5AED6FC2E858A6E89" box="[189,460,942,968]" name="CAMPBELL ISLAND" pageId="17" pageNumber="18">CAMPBELL ISLAND</location>
|
||
•
|
||
<location id="8E9E6062FFC9FFC5AF8FFC2E869C6E89" LSID="urn:lsid:plazi:treatment:03E887AFFFC9FFC7AFCFFD9E80C26F2B:8E9E6062FFC9FFC5AF8FFC2E869C6E89" box="[484,730,942,968]" name="sub-Antarctic region" pageId="17" pageNumber="18">sub-Antarctic region</location>
|
||
; sample BAS272;
|
||
<date id="FFFF1079FFC9FFC5ADDEFC2E80136E89" box="[949,1109,942,969]" pageId="17" pageNumber="18" value="1969-12-26">
|
||
<collectingDate id="EFBBE991FFC9FFC5ADDEFC2E80136E89" box="[949,1109,942,969]" pageId="17" pageNumber="18" value="1969-12-26">26 Dec. 1969</collectingDate>
|
||
</date>
|
||
;
|
||
<collectorName id="26B4536FFFC9FFC5AA0AFC2F80F76E89" box="[1121,1201,942,969]" pageId="17" pageNumber="18">D. Vitt</collectorName>
|
||
leg.;
|
||
<specimenCode id="DBE79EC2FFC9FFC5AA99FC2E81246E88" box="[1266,1378,942,969]" pageId="17" pageNumber="18">BR-4581</specimenCode>
|
||
.
|
||
</materialsCitation>
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFC9FFC5AE81FC708503694B" blockId="17.[189,1398,1008,1104]" box="[234,325,1008,1034]" pageId="17" pageNumber="18">
|
||
<emphasis id="B935EAABFFC9FFC5AE81FC708503694B" bold="true" box="[234,325,1008,1034]" pageId="17" pageNumber="18">Isotype</emphasis>
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFC9FFC5AED6FB93856B6911" blockId="17.[189,1398,1008,1104]" pageId="17" pageNumber="18">
|
||
<materialsCitation id="3B293CE4FFC9FFC5AED6FB93856B6911" ID-GBIF-Occurrence="2824214309" collectionCode="PLP" location="CAMPBELL ISLAND" pageId="17" pageNumber="18" specimenCode="PLP-372" specimenCount="1">
|
||
<location id="8E9E6062FFC9FFC5AED6FB93858D696C" LSID="urn:lsid:plazi:treatment:03E887AFFFC9FFC7AFCFFD9E80C26F2B:8E9E6062FFC9FFC5AED6FB93858D696C" box="[189,459,1043,1069]" name="CAMPBELL ISLAND" pageId="17" pageNumber="18">CAMPBELL ISLAND</location>
|
||
• same collection data as for holotype; slide at University of Antwerp, Belgium;
|
||
<specimenCode id="DBE79EC2FFC9FFC5AED6FBB6856F6911" box="[189,297,1078,1104]" pageId="17" pageNumber="18">PLP-372</specimenCode>
|
||
.
|
||
</materialsCitation>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C35B6532FFC9FFC7AED6FBF7804B6CF2" lastPageId="19" lastPageNumber="20" pageId="17" pageNumber="18" type="description">
|
||
<paragraph id="8BFE36B9FFC9FFC5AED6FBF7850869D0" blockId="17.[189,334,1143,1169]" box="[189,334,1143,1169]" pageId="17" pageNumber="18">
|
||
<heading id="D0B681D5FFC9FFC5AED6FBF7850869D0" bold="true" box="[189,334,1143,1169]" fontSize="11" level="3" pageId="17" pageNumber="18" reason="3">
|
||
<emphasis id="B935EAABFFC9FFC5AED6FBF7850869D0" bold="true" box="[189,334,1143,1169]" pageId="17" pageNumber="18">Description</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFC9FFC5AE81FB2686366980" blockId="17.[189,1399,1190,1463]" box="[234,624,1190,1217]" pageId="17" pageNumber="18">
|
||
<emphasis id="B935EAABFFC9FFC5AE81FB2685836981" bold="true" box="[234,453,1190,1216]" pageId="17" pageNumber="18">Light microscopy</emphasis>
|
||
(
|
||
<figureCitation id="137A2A3CFFC9FFC5AFBFFB26862F6980" box="[468,617,1190,1217]" 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="17" pageNumber="18">Figs 97–115</figureCitation>
|
||
)
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFC9FFC5AED6FB49808B68F7" blockId="17.[189,1399,1190,1463]" pageId="17" pageNumber="18">Frustules broadly discoid, almost square to rectangular with broadly rounded edges and convex valve faces. Frustules often found attached to each other. Chains composed of more than 2 cells however never observed. Multiple discoid chloroplasts present. Girdle bands not discernible in LM. Valves rather strongly silicified, rounded with a thick mantle and convex, weakly domed valve face. Valve dimensions (n = 25): valve diameter 6–17.5 μm, frustule height (n = 10): 4.5–7.0 μm. Central area is a large, smooth, hyaline zone, 3.0–7.5 μm, 50–55% of the total valve diameter, surrounded by a more rugose, irregularly shaped, marginal zone where striae are difficult to distinguish. Visible processes lacking.</paragraph>
|
||
<paragraph id="8BFE36B9FFC9FFC5AE81FA5E875D68B9" blockId="17.[189,1399,1502,1669]" box="[234,795,1502,1528]" pageId="17" pageNumber="18">
|
||
<emphasis id="B935EAABFFC9FFC5AE81FA5E862668B9" bold="true" box="[234,608,1502,1528]" pageId="17" pageNumber="18">Scanning electron microscopy</emphasis>
|
||
(
|
||
<figureCitation id="137A2A3CFFC9FFC5AC1BFA5E875568B9" box="[624,787,1502,1528]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Figs 132–138</figureCitation>
|
||
)
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFC9FFC5AED6F981803E6BC4" blockId="17.[189,1399,1502,1669]" pageId="17" pageNumber="18">
|
||
Frustules discoid with very heavily silicified valves, visible as a thick mantle (
|
||
<figureCitation id="137A2A3CFFC9FFC5AA23F98180AB6B5A" box="[1096,1261,1537,1563]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Figs 132, 137</figureCitation>
|
||
). Cingulum comprises several, narrow, very thin, non-perforated, open copulae (
|
||
<figureCitation id="137A2A3CFFC9FFC5AA61F9A480376B7E" box="[1034,1137,1572,1599]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Fig. 132</figureCitation>
|
||
). Pars interior of the copulae clearly fimbriate giving the impression of perforations on the copulae when girdle not eroded (
|
||
<figureCitation id="137A2A3CFFC9FFC5AEAEF9EB852F6BC4" box="[197,361,1643,1669]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Figs 132, 133</figureCitation>
|
||
, arrows). Copulae clearly open, ligulate (
|
||
<figureCitation id="137A2A3CFFC9FFC5AD25F9EB87F26BC4" box="[846,948,1643,1669]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Fig. 132</figureCitation>
|
||
, double arrows).
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFC9FFC5AED6F92C86D56AA1" blockId="17.[189,1399,1708,2016]" pageId="17" pageNumber="18">
|
||
Valve face with large, flat hyaline, clearly rounded central area, lacking areolae and any other ornamentation (
|
||
<figureCitation id="137A2A3CFFC9FFC5AF1DF94F865A6BAB" box="[374,540,1743,1770]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Figs 134–136</figureCitation>
|
||
). Marginal zone gently sloping towards the mantle, entirely covered with rounded to slit-like areolae, ca
|
||
<quantity id="4CB99B5CFFC9FFC5AC4BF972861C6A4C" box="[544,602,1778,1805]" metricMagnitude="0" metricUnit="m" metricValue="1.143" pageId="17" pageNumber="18" unit="in" value="45.0">45 in</quantity>
|
||
10 μm, organized in irregular striae, the latter ca
|
||
<quantity id="4CB99B5CFFC9FFC5AAFBF973808C6A4C" box="[1168,1226,1779,1805]" metricMagnitude="0" metricUnit="m" metricValue="1.016" pageId="17" pageNumber="18" unit="in" value="40.0">40 in</quantity>
|
||
10 μm. Areola occlusions externally not observed (
|
||
<figureCitation id="137A2A3CFFC9FFC5AC07F89687556A70" box="[620,787,1814,1841]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Figs 134–135</figureCitation>
|
||
). External openings of portulae not distinguishable from areola openings. No silica thickenings, close to valve face/mantle junction (
|
||
<figureCitation id="137A2A3CFFC9FFC5AADAF8B9815E6A15" box="[1201,1304,1849,1876]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Fig. 135</figureCitation>
|
||
). Striae continuing over the valve face/mantle junction, usually interrupted by a series of up to 3 parallel ridges running entirely around the mantle (
|
||
<figureCitation id="137A2A3CFFC9FFC5AC1DF8FF875B6ADB" box="[630,797,1919,1946]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Figs 134–135</figureCitation>
|
||
). Parallel ridges, usually covered by girdle bands (
|
||
<figureCitation id="137A2A3CFFC9FFC5AEADF823856D6AFC" box="[198,299,1955,1981]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Fig. 133</figureCitation>
|
||
), occasionally lacking and resulting in a broad, flat mantle (
|
||
<figureCitation id="137A2A3CFFC9FFC5AD9FF823801D6AFC" box="[1012,1115,1954,1981]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="17" pageNumber="18">Fig. 136</figureCitation>
|
||
). Areolae on the mantle strictly rounded. Mantle edge indistinct.
|
||
</paragraph>
|
||
<caption id="DF3E6631FFCAFFC6AED6F997812B6A0A" ID-DOI="http://doi.org/10.5281/zenodo.3973574" ID-Zenodo-Dep="3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="18" pageNumber="19" startId="18.[189,241,1559,1585]" targetBox="[237,1326,265,1517]" targetPageId="18">
|
||
<paragraph id="8BFE36B9FFCAFFC6AED6F997812B6A0A" blockId="18.[189,1399,1559,1867]" pageId="18" pageNumber="19">
|
||
<emphasis id="B935EAABFFCAFFC6AED6F99785206B70" bold="true" box="[189,358,1559,1585]" pageId="18" pageNumber="19">Figs 132–138.</emphasis>
|
||
<taxonomicName id="4C414D3AFFCAFFC6AF1BF99787BF6B70" authority="Goeyers & Van de Vijver" authorityName="Goeyers & Van de Vijver" authorityYear="2020" box="[368,1017,1559,1585]" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="18" pageNumber="19" phylum="Ochrophyta" rank="species" species="saundersianus" status="sp. nov.">
|
||
<emphasis id="B935EAABFFCAFFC6AF1BF99786876B70" box="[368,705,1559,1585]" italics="true" pageId="18" pageNumber="19">Arcanodiscus saundersianus</emphasis>
|
||
Goeyers & Van de Vijver
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20657D0FFCAFFC6AA68F99780186B70" box="[1027,1118,1559,1585]" pageId="18" pageNumber="19" rank="species">sp. nov.</taxonomicNameLabel>
|
||
SEM. Campbell Island
|
||
<typeStatus id="54FA881BFFCAFFC6AED6F9BA85626B15" box="[189,292,1594,1620]" pageId="18" pageNumber="19" type="holotype">holotype</typeStatus>
|
||
population, sample BAS272 (BR-4581).
|
||
<emphasis id="B935EAABFFCAFFC6AD61F9BA87706B15" bold="true" box="[778,822,1594,1620]" pageId="18" pageNumber="19">132</emphasis>
|
||
. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae.
|
||
<emphasis id="B935EAABFFCAFFC6AC46F9DD861F6B36" bold="true" box="[557,601,1629,1655]" pageId="18" pageNumber="19">133</emphasis>
|
||
. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae.
|
||
<emphasis id="B935EAABFFCAFFC6AC42F92486D66BFF" bold="true" box="[553,656,1700,1726]" pageId="18" pageNumber="19">134–135</emphasis>
|
||
. External valve face views showing the relatively small central area and the well-developed marginal ridges.
|
||
<emphasis id="B935EAABFFCAFFC6ACBCF94787456BA0" bold="true" box="[727,771,1735,1761]" pageId="18" pageNumber="19">136</emphasis>
|
||
. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge.
|
||
<emphasis id="B935EAABFFCAFFC6AAB5F96A814C6A45" bold="true" box="[1246,1290,1770,1796]" pageId="18" pageNumber="19">137</emphasis>
|
||
. Internal views of an entire valve showing several rimoportulae (arrows).
|
||
<emphasis id="B935EAABFFCAFFC6ADAAF88D87AB6A66" bold="true" box="[961,1005,1805,1831]" pageId="18" pageNumber="19">138</emphasis>
|
||
. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BFE36B9FFCBFFC7AED6FE8C804B6CF2" blockId="19.[189,1399,268,435]" pageId="19" pageNumber="20">
|
||
Internally, areolae rather large, each showing a clear rota, covered by very thin hymenes, organized in irregularly running striae (
|
||
<figureCitation id="137A2A3CFFCBFFC7AC7DFEAF863B6C08" box="[534,637,303,329]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="19" pageNumber="20">Fig. 138</figureCitation>
|
||
). Central area a large hyaline, irregularly bordered, central zone (
|
||
<figureCitation id="137A2A3CFFCBFFC7AEADFED2856B6C2D" box="[198,301,338,364]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="19" pageNumber="20">Fig. 137</figureCitation>
|
||
). Large number of perforated, thickened protuberances visible, irregularly scattered between the areolae, never organized in a regular marginal ring (
|
||
<figureCitation id="137A2A3CFFCBFFC7AD18FEF5879E6CD1" box="[883,984,373,400]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="19" pageNumber="20">Fig. 137</figureCitation>
|
||
, arrows). Inner openings of these protuberances rounded, smaller than the areolae, lacking rota (
|
||
<figureCitation id="137A2A3CFFCBFFC7ADF2FE1980466CF2" box="[921,1024,409,435]" captionStart="Figs 132–138" captionStartId="18.[189,241,1559,1585]" captionTargetBox="[237,1326,265,1517]" captionTargetId="figure@18.[237,1326,265,1517]" captionTargetPageId="18" captionText="Figs 132–138. Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. SEM. Campbell Island holotype population, sample BAS272 (BR-4581). 132. Frustule in girdle view with the narrow copulae. The arrows indicate the ligulae. 133. Frustule in girdle view with the narrow copulae. The arrows indicate the fimbriate pars interior of the copulae. Note also the domed valve face. Parts of the upper layer are eroded showing small areolae. 134–135. External valve face views showing the relatively small central area and the well-developed marginal ridges. 136. External view of a valve in girdle view showing the low, almost flat valve face, the absence of marginal ridges and the broad mantle edge. 137. Internal views of an entire valve showing several rimoportulae (arrows). 138. Internal detail of the valve with an indicated rimoportula. Note also the rota on the areolae. Scale bars: 132–137 = 10 μm; 138 = 1 μm." figureDoi="http://doi.org/10.5281/zenodo.3973574" httpUri="https://zenodo.org/record/3973574/files/figure.png" pageId="19" pageNumber="20">Fig. 138</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C35B6532FFCBFFC7AED6FE5A80C26F2B" pageId="19" pageNumber="20" type="biology_ecology">
|
||
<paragraph id="8BFE36B9FFCBFFC7AED6FE5A85B46CB5" blockId="19.[189,498,474,500]" box="[189,498,474,500]" pageId="19" pageNumber="20">
|
||
<heading id="D0B681D5FFCBFFC7AED6FE5A85B46CB5" bold="true" box="[189,498,474,500]" fontSize="11" level="3" pageId="19" pageNumber="20" reason="3">
|
||
<emphasis id="B935EAABFFCBFFC7AED6FE5A85B46CB5" bold="true" box="[189,498,474,500]" pageId="19" pageNumber="20">Ecology and distribution</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
<paragraph id="8BFE36B9FFCBFFC7AED6FD8980C26F2B" blockId="19.[189,1399,521,618]" pageId="19" pageNumber="20">
|
||
<taxonomicName id="4C414D3AFFCBFFC7AED6FD89864B6F62" authority="Goeyers & Vijver, 2020" authorityName="Goeyers & Van de Vijver" authorityYear="2020" box="[189,525,521,547]" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="19" pageNumber="20" phylum="Ochrophyta" rank="species" species="saundersianus" status="sp. nov.">
|
||
<emphasis id="B935EAABFFCBFFC7AED6FD89864B6F62" box="[189,525,521,547]" italics="true" pageId="19" pageNumber="20">Arcanodiscus saundersianus</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20657D0FFCBFFC7AC7EFD8986366F62" box="[533,624,521,547]" pageId="19" pageNumber="20" rank="species">sp. nov.</taxonomicNameLabel>
|
||
was found in a sample collected from a dripping bluff limestone. The sample is entirely dominated by the new species of
|
||
<taxonomicName id="4C414D3AFFCBFFC7AD08FDAC80446F07" box="[867,1026,556,582]" class="Bacillariophyceae" family="Arcanodiscaceae" genus="Arcanodiscus" higherTaxonomySource="GBIF" kingdom="Chromista" order="Arcanodiscales" pageId="19" pageNumber="20" phylum="Ochrophyta" rank="genus">
|
||
<emphasis id="B935EAABFFCBFFC7AD08FDAC80446F07" box="[867,1026,556,582]" italics="true" pageId="19" pageNumber="20">Arcanodiscus</emphasis>
|
||
</taxonomicName>
|
||
. Sub-dominant species include
|
||
<taxonomicName id="4C414D3AFFCBFFC7AED6FDCF85E96F28" box="[189,431,591,617]" class="Bacillariophyceae" family="Achnanthaceae" genus="Achnanthes" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="19" pageNumber="20" phylum="Ochrophyta" rank="species" species="muelleri">
|
||
<emphasis id="B935EAABFFCBFFC7AED6FDCF85E96F28" box="[189,431,591,617]" italics="true" pageId="19" pageNumber="20">Achnanthes muelleri</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C414D3AFFCBFFC7AFD5FDCF86926F28" box="[446,724,591,617]" class="Bacillariophyceae" family="Achnanthaceae" genus="Diatomella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="19" pageNumber="20" phylum="Ochrophyta" rank="species" species="balfouriana">
|
||
<emphasis id="B935EAABFFCBFFC7AFD5FDCF86926F28" box="[446,724,591,617]" italics="true" pageId="19" pageNumber="20">Diatomella balfouriana</emphasis>
|
||
</taxonomicName>
|
||
and several species of
|
||
<taxonomicName id="4C414D3AFFCBFFC7AD88FDCF80386F28" authorityName="R.L.Lowe, P.Kociolek, J.R.Johansen, B.Van de Vijver, H.Lange-Bertalot & K.Kopalova" authorityYear="2014" box="[995,1150,591,617]" class="Bacillariophyceae" family="Diadesmidaceae" genus="Humidophila" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="19" pageNumber="20" phylum="Ochrophyta" rank="genus">
|
||
<emphasis id="B935EAABFFCBFFC7AD88FDCF80386F28" box="[995,1150,591,617]" italics="true" pageId="19" pageNumber="20">Humidophila</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |