195 lines
38 KiB
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195 lines
38 KiB
XML
<document id="8611DA4D198B8B03D4650913D153496E" ID-CLB-Dataset="111190" ID-DOI="10.11646/phytotaxa.556.1.3" ID-GBIF-Dataset="ac636d2a-3e29-49a7-a37c-a44fb4e0e878" ID-ISSN="1179-3163" ID-Zenodo-Dep="6951967" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1659436889185" checkinUser="plazi" docAuthor="Stone, Jeffery R., Wilson, Mallory C. & Jovanovska, Elena" docDate="2022" docId="03AC87E94550FFACFF28FF58FD120E80" docLanguage="en" docName="phytotaxa.556.1.3.pdf" docOrigin="Phytotaxa 556 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.556.1.3" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Afrocymbella cocquytiana Stone & Wilson & Jovanovska 2022, sp. nov." docType="treatment" docVersion="5" lastPageNumber="35" masterDocId="FF95FF91455EFFA2FFA0FFC5FFAE0A04" masterDocTitle="The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species" masterLastPageNumber="48" masterPageNumber="21" pageNumber="35" updateTime="1699362577316" updateUser="ExternalLinkService" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="C14ED65194273394FEA5B1800DEFE539">The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species</mods:title>
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<mods:name id="D422258D3C903ACA2F129359FACCE335" type="personal">
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<mods:namePart id="8926ECB96A9E5D665A813E6DE2CE6EB3">Stone, Jeffery R.</mods:namePart>
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<mods:affiliation id="5DB8DFB05A304962E6087933D7619F8A">Indiana State University, Department of Earth and Environmental Systems, Terre Haute, Indiana, U. S. A. & jeffery. stone @ indstate. edu; https: // orcid. org / 0000 - 0002 - 1313 - 0643</mods:affiliation>
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<mods:nameIdentifier id="7FA5BE302F0AD14C726ED95B426EB25C" type="email">jeffery.stone@indstate.edu</mods:nameIdentifier>
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<mods:namePart id="9A78B17572A5DB7ED872DD30BA825FB6">Wilson, Mallory C.</mods:namePart>
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<mods:nameIdentifier id="BFA403019FADF6A4A6044708B30D5AC0" type="ORCID">0000-0002-2852-125X</mods:nameIdentifier>
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<mods:affiliation id="6B98BF3F3E67FC8578CE52EF59951F93">Indiana State University, Department of Earth and Environmental Systems, Terre Haute, Indiana, U. S. A. & mwilson 108 @ sycamores. indstate. edu; https: // orcid. org / 0000 - 0002 - 2852 - 125 X</mods:affiliation>
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<mods:nameIdentifier id="8DFE0745D5DAACE670A35C39095FC35C" type="email">mwilson108@sycamores.indstate.edu</mods:nameIdentifier>
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<mods:namePart id="9D027CC5E7AB158BF24082CE85A4496C">Jovanovska, Elena</mods:namePart>
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<mods:nameIdentifier id="B78F7451172D3D4FB250ED57A360608D" type="ORCID">0000-0002-3413-3683</mods:nameIdentifier>
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<mods:affiliation id="E41B1A74388B8FE00AE0E43A29D83BAB">Senckenberg Research Institute, Department of Paleoanthropology, Frankfurt am Main, Germany & jovanovska. eci @ gmail. com; https: // orcid. org / 0000 - 0002 - 3413 - 3683</mods:affiliation>
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<mods:nameIdentifier id="1288096B1D18DB3350E80217B6DE845A" type="email">jovanovska.eci@gmail.com</mods:nameIdentifier>
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<mods:title id="64FD618C8FA7C56D037E1FB6EDD47093">Phytotaxa</mods:title>
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<mods:date id="37207F4298B8E286945F419E9BD9CE4E">2022</mods:date>
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<mods:number id="208CAE26E5838061301DA26B5DEFCFA8">2022-08-01</mods:number>
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<mods:number id="447D4CEBD6CB2513EFFE097DAC5DF0FE">556</mods:number>
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<mods:url id="201A3948B229C3183ABA89B330E0D547">http://dx.doi.org/10.11646/phytotaxa.556.1.3</mods:url>
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<mods:classification id="293273895B0EF0BD5D29E7CC39836893">journal article</mods:classification>
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<treatment id="03AC87E94550FFACFF28FF58FD120E80" ID-DOI="http://doi.org/10.5281/zenodo.6951985" ID-GBIF-Taxon="198475015" ID-Zenodo-Dep="6951985" LSID="urn:lsid:plazi:treatment:03AC87E94550FFACFF28FF58FD120E80" httpUri="http://treatment.plazi.org/id/03AC87E94550FFACFF28FF58FD120E80" lastPageNumber="35" pageId="14" pageNumber="35">
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<subSubSection id="C31F65744550FFACFF28FF58FC610ABD" box="[136,975,157,185]" pageId="14" pageNumber="35" type="nomenclature">
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<paragraph id="8BBA36FF4550FFACFF28FF58FC610ABD" blockId="14.[136,975,157,185]" box="[136,975,157,185]" pageId="14" pageNumber="35">
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<heading id="D0F281934550FFACFF28FF58FC610ABD" box="[136,975,157,185]" fontSize="11" level="2" pageId="14" pageNumber="35" reason="3">
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<emphasis id="B971EAED4550FFACFF28FF58FDBD0ABC" box="[136,531,157,184]" italics="true" pageId="14" pageNumber="35">
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<taxonomicName id="4C054D7C4550FFACFF28FF58FE190ABC" authority="Stone & Wilson & Jovanovska, 2022" authorityName="Stone & Wilson & Jovanovska" authorityYear="2022" box="[136,439,157,184]" class="Bacillariophyceae" family="Cymbellaceae" genus="Afrocymbella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="14" pageNumber="35" phylum="Ochrophyta" rank="species" species="cocquytiana" status="sp. nov.">
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<emphasis id="B971EAED4550FFACFF28FF58FE190ABC" bold="true" box="[136,439,157,184]" italics="true" pageId="14" pageNumber="35">Afrocymbella cocquytiana</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A24257964550FFACFE1EFF5AFDBD0ABC" box="[446,531,159,184]" pageId="14" pageNumber="35" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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(LM
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<figureCitation id="133E2A7A4550FFACFDF3FF5BFD4F0ABC" box="[595,737,158,184]" captionStart="FIGURES 87–108" captionStartId="15.[136,243,1856,1878]" captionTargetBox="[151,1436,317,1831]" captionTargetId="figure-75@15.[151,1436,317,1831]" captionTargetPageId="15" captionText="FIGURES 87–108. Afrocymbella cocquytiana sp. nov., LM valve views. All valves from the type material. Fig. 93. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6952008" httpUri="https://zenodo.org/record/6952008/files/figure.png" pageId="14" pageNumber="35">Figs 87–108</figureCitation>
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, SEM
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<figureCitation id="133E2A7A4550FFACFC8DFF5BFC680ABD" box="[813,966,158,185]" captionStart-0="FIGURES 109–111" captionStart-1="FIGURES 112–115" captionStartId-0="16.[136,243,1956,1978]" captionStartId-1="17.[136,243,1438,1460]" captionTargetBox-0="[202,1386,190,1932]" captionTargetBox-1="[151,1435,190,1414]" captionTargetId-0="figure-30@16.[202,1386,190,1932]" captionTargetId-1="figure-18@17.[151,1435,190,1414]" captionTargetPageId-0="16" captionTargetPageId-1="17" captionText-0="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." captionText-1="FIGURES 112–115. Afrocymbella cocquytiana sp. nov., SEM internal valve views. 112. View of the whole valve showing raphe structure and areolae without velum. 113. Detail of mid-valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 114. Close view of valve apices showing APF with knobby jointed ridge of silica. 115. Distal raphe fissures slightly raised into small helictoglossae. Scale bars = 10 μm (Fig. 112), 2 μm (Figs 113–115)." figureDoi-0="http://doi.org/10.5281/zenodo.6952010" figureDoi-1="http://doi.org/10.5281/zenodo.6952012" httpUri-0="https://zenodo.org/record/6952010/files/figure.png" httpUri-1="https://zenodo.org/record/6952012/files/figure.png" pageId="14" pageNumber="35">Figs 109–115</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="C31F65744550FFACFF28FF20FCAE0918" pageId="14" pageNumber="35" type="description">
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<paragraph id="8BBA36FF4550FFACFF28FF20FCAE0918" blockId="14.[136,1452,229,1156]" pageId="14" pageNumber="35">
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<emphasis id="B971EAED4550FFACFF28FF20FE960AFB" bold="true" box="[136,312,229,255]" pageId="14" pageNumber="35">Description:—</emphasis>
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Valve length 35.0–51.5 μm, valve breadth 9.5–12.5 μm. Valves distinctly dorsiventral and heteropolar, semirhomboid-lanceolate (
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<figureCitation id="133E2A7A4550FFACFE13FECFFDED0B21" box="[435,579,266,293]" captionStart-0="FIGURES 87–108" captionStart-1="FIGURES 109–111" captionStart-2="FIGURES 112–115" captionStartId-0="15.[136,243,1856,1878]" captionStartId-1="16.[136,243,1956,1978]" captionStartId-2="17.[136,243,1438,1460]" captionTargetBox-0="[151,1436,317,1831]" captionTargetBox-1="[202,1386,190,1932]" captionTargetBox-2="[151,1435,190,1414]" captionTargetId-0="figure-75@15.[151,1436,317,1831]" captionTargetId-1="figure-30@16.[202,1386,190,1932]" captionTargetId-2="figure-18@17.[151,1435,190,1414]" captionTargetPageId-0="15" captionTargetPageId-1="16" captionTargetPageId-2="17" captionText-0="FIGURES 87–108. Afrocymbella cocquytiana sp. nov., LM valve views. All valves from the type material. Fig. 93. Holotype specimen. Scale bar = 10 μm." captionText-1="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." captionText-2="FIGURES 112–115. Afrocymbella cocquytiana sp. nov., SEM internal valve views. 112. View of the whole valve showing raphe structure and areolae without velum. 113. Detail of mid-valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 114. Close view of valve apices showing APF with knobby jointed ridge of silica. 115. Distal raphe fissures slightly raised into small helictoglossae. Scale bars = 10 μm (Fig. 112), 2 μm (Figs 113–115)." figureDoi-0="http://doi.org/10.5281/zenodo.6952008" figureDoi-1="http://doi.org/10.5281/zenodo.6952010" figureDoi-2="http://doi.org/10.5281/zenodo.6952012" httpUri-0="https://zenodo.org/record/6952008/files/figure.png" httpUri-1="https://zenodo.org/record/6952010/files/figure.png" httpUri-2="https://zenodo.org/record/6952012/files/figure.png" pageId="14" pageNumber="35">Figs 87–115</figureCitation>
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). Dorsal margin broadly arched, slightly protracted near apices (
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<figureCitation id="133E2A7A4550FFACFAAFFECFFA310B20" box="[1295,1439,266,292]" captionStart="FIGURES 87–108" captionStartId="15.[136,243,1856,1878]" captionTargetBox="[151,1436,317,1831]" captionTargetId="figure-75@15.[151,1436,317,1831]" captionTargetPageId="15" captionText="FIGURES 87–108. Afrocymbella cocquytiana sp. nov., LM valve views. All valves from the type material. Fig. 93. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6952008" httpUri="https://zenodo.org/record/6952008/files/figure.png" pageId="14" pageNumber="35">Figs 87–108</figureCitation>
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). Ventral margin weakly convex, barely tumescent in central area, tapering gently toward apices (
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<figureCitation id="133E2A7A4550FFACFB06FEEBFA980B4C" box="[1190,1334,302,328]" captionStart="FIGURES 87–108" captionStartId="15.[136,243,1856,1878]" captionTargetBox="[151,1436,317,1831]" captionTargetId="figure-75@15.[151,1436,317,1831]" captionTargetPageId="15" captionText="FIGURES 87–108. Afrocymbella cocquytiana sp. nov., LM valve views. All valves from the type material. Fig. 93. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6952008" httpUri="https://zenodo.org/record/6952008/files/figure.png" pageId="14" pageNumber="35">Figs 87–108</figureCitation>
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). Footpole narrowing, rounded with APF, headpole distinctly rostrate (
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<figureCitation id="133E2A7A4550FFACFC8AFE97FC200B68" box="[810,910,338,364]" captionStart="FIGURES 109–111" captionStartId="16.[136,243,1956,1978]" captionTargetBox="[202,1386,190,1932]" captionTargetId="figure-30@16.[202,1386,190,1932]" captionTargetPageId="16" captionText="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." figureDoi="http://doi.org/10.5281/zenodo.6952010" httpUri="https://zenodo.org/record/6952010/files/figure.png" pageId="14" pageNumber="35">Fig. 109</figureCitation>
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). APF externally with round poroids (
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<figureCitation id="133E2A7A4550FFACFA9DFE97FA300B68" box="[1341,1438,338,364]" captionStart="FIGURES 109–111" captionStartId="16.[136,243,1956,1978]" captionTargetBox="[202,1386,190,1932]" captionTargetId="figure-30@16.[202,1386,190,1932]" captionTargetPageId="16" captionText="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." figureDoi="http://doi.org/10.5281/zenodo.6952010" httpUri="https://zenodo.org/record/6952010/files/figure.png" pageId="14" pageNumber="35">Fig. 111</figureCitation>
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), internally covered by knobby jointed ridge of silica (
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<figureCitation id="133E2A7A4550FFACFD41FEB3FCEA0B94" box="[737,836,374,400]" captionStart="FIGURES 112–115" captionStartId="17.[136,243,1438,1460]" captionTargetBox="[151,1435,190,1414]" captionTargetId="figure-18@17.[151,1435,190,1414]" captionTargetPageId="17" captionText="FIGURES 112–115. Afrocymbella cocquytiana sp. nov., SEM internal valve views. 112. View of the whole valve showing raphe structure and areolae without velum. 113. Detail of mid-valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 114. Close view of valve apices showing APF with knobby jointed ridge of silica. 115. Distal raphe fissures slightly raised into small helictoglossae. Scale bars = 10 μm (Fig. 112), 2 μm (Figs 113–115)." figureDoi="http://doi.org/10.5281/zenodo.6952012" httpUri="https://zenodo.org/record/6952012/files/figure.png" pageId="14" pageNumber="35">Fig. 114</figureCitation>
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). Internally, both poles bear small to indistinguishable pseudosepta (
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<figureCitation id="133E2A7A4550FFACFE81FE5FFE580BB1" box="[289,502,410,437]" captionStart="FIGURES 112–115" captionStartId="17.[136,243,1438,1460]" captionTargetBox="[151,1435,190,1414]" captionTargetId="figure-18@17.[151,1435,190,1414]" captionTargetPageId="17" captionText="FIGURES 112–115. Afrocymbella cocquytiana sp. nov., SEM internal valve views. 112. View of the whole valve showing raphe structure and areolae without velum. 113. Detail of mid-valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 114. Close view of valve apices showing APF with knobby jointed ridge of silica. 115. Distal raphe fissures slightly raised into small helictoglossae. Scale bars = 10 μm (Fig. 112), 2 μm (Figs 113–115)." figureDoi="http://doi.org/10.5281/zenodo.6952012" httpUri="https://zenodo.org/record/6952012/files/figure.png" pageId="14" pageNumber="35">Figs 112, 114, 115</figureCitation>
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). Axial area narrow, curved, slightly ventrally displaced (
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<figureCitation id="133E2A7A4550FFACFBDDFE5FFAA10BB0" box="[1149,1295,410,436]" captionStart="FIGURES 87–108" captionStartId="15.[136,243,1856,1878]" captionTargetBox="[151,1436,317,1831]" captionTargetId="figure-75@15.[151,1436,317,1831]" captionTargetPageId="15" captionText="FIGURES 87–108. Afrocymbella cocquytiana sp. nov., LM valve views. All valves from the type material. Fig. 93. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6952008" httpUri="https://zenodo.org/record/6952008/files/figure.png" pageId="14" pageNumber="35">Figs 87–108</figureCitation>
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). Central area small, broadly elliptical, slightly more arched on dorsal side (
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<figureCitation id="133E2A7A4550FFACFC8EFE7BFC670BDC" box="[814,969,446,472]" captionStart="FIGURES 109–111" captionStartId="16.[136,243,1956,1978]" captionTargetBox="[202,1386,190,1932]" captionTargetId="figure-30@16.[202,1386,190,1932]" captionTargetPageId="16" captionText="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." figureDoi="http://doi.org/10.5281/zenodo.6952010" httpUri="https://zenodo.org/record/6952010/files/figure.png" pageId="14" pageNumber="35">Figs 109, 110</figureCitation>
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). A round stigmoid is present on dorsal side of central nodule (
|
||
<figureCitation id="133E2A7A4550FFACFEF4FE27FE1A0BF8" box="[340,436,482,508]" captionStart="FIGURES 109–111" captionStartId="16.[136,243,1956,1978]" captionTargetBox="[202,1386,190,1932]" captionTargetId="figure-30@16.[202,1386,190,1932]" captionTargetPageId="16" captionText="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." figureDoi="http://doi.org/10.5281/zenodo.6952010" httpUri="https://zenodo.org/record/6952010/files/figure.png" pageId="14" pageNumber="35">Fig. 110</figureCitation>
|
||
), opening internally through elongated slit (
|
||
<figureCitation id="133E2A7A4550FFACFC3CFE27FC530BF8" box="[924,1021,482,508]" captionStart="FIGURES 112–115" captionStartId="17.[136,243,1438,1460]" captionTargetBox="[151,1435,190,1414]" captionTargetId="figure-18@17.[151,1435,190,1414]" captionTargetPageId="17" captionText="FIGURES 112–115. Afrocymbella cocquytiana sp. nov., SEM internal valve views. 112. View of the whole valve showing raphe structure and areolae without velum. 113. Detail of mid-valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 114. Close view of valve apices showing APF with knobby jointed ridge of silica. 115. Distal raphe fissures slightly raised into small helictoglossae. Scale bars = 10 μm (Fig. 112), 2 μm (Figs 113–115)." figureDoi="http://doi.org/10.5281/zenodo.6952012" httpUri="https://zenodo.org/record/6952012/files/figure.png" pageId="14" pageNumber="35">Fig. 113</figureCitation>
|
||
). Raphe curved and slightly sinusoidal (
|
||
<figureCitation id="133E2A7A4550FFACFF30FDC3FF5D0824" box="[144,243,518,544]" captionStart="FIGURES 109–111" captionStartId="16.[136,243,1956,1978]" captionTargetBox="[202,1386,190,1932]" captionTargetId="figure-30@16.[202,1386,190,1932]" captionTargetPageId="16" captionText="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." figureDoi="http://doi.org/10.5281/zenodo.6952010" httpUri="https://zenodo.org/record/6952010/files/figure.png" pageId="14" pageNumber="35">Fig. 109</figureCitation>
|
||
). External proximal raphe ends expanded into small pores (
|
||
<figureCitation id="133E2A7A4550FFACFC2DFDC3FC410824" box="[909,1007,518,544]" captionStart="FIGURES 109–111" captionStartId="16.[136,243,1956,1978]" captionTargetBox="[202,1386,190,1932]" captionTargetId="figure-30@16.[202,1386,190,1932]" captionTargetPageId="16" captionText="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." figureDoi="http://doi.org/10.5281/zenodo.6952010" httpUri="https://zenodo.org/record/6952010/files/figure.png" pageId="14" pageNumber="35">Fig. 110</figureCitation>
|
||
). External distal raphe terminal fissures deflected towards the ventral margin (
|
||
<figureCitation id="133E2A7A4550FFACFD9CFDEFFD700840" box="[572,734,554,580]" captionStart="FIGURES 109–111" captionStartId="16.[136,243,1956,1978]" captionTargetBox="[202,1386,190,1932]" captionTargetId="figure-30@16.[202,1386,190,1932]" captionTargetPageId="16" captionText="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." figureDoi="http://doi.org/10.5281/zenodo.6952010" httpUri="https://zenodo.org/record/6952010/files/figure.png" pageId="14" pageNumber="35">Figs 109, 111</figureCitation>
|
||
). Internal proximal raphe ends covered by nodular or flap-like silica development formed by the primary side of the valve (
|
||
<figureCitation id="133E2A7A4550FFACFC95FD8BFC39086C" box="[821,919,590,616]" captionStart="FIGURES 112–115" captionStartId="17.[136,243,1438,1460]" captionTargetBox="[151,1435,190,1414]" captionTargetId="figure-18@17.[151,1435,190,1414]" captionTargetPageId="17" captionText="FIGURES 112–115. Afrocymbella cocquytiana sp. nov., SEM internal valve views. 112. View of the whole valve showing raphe structure and areolae without velum. 113. Detail of mid-valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 114. Close view of valve apices showing APF with knobby jointed ridge of silica. 115. Distal raphe fissures slightly raised into small helictoglossae. Scale bars = 10 μm (Fig. 112), 2 μm (Figs 113–115)." figureDoi="http://doi.org/10.5281/zenodo.6952012" httpUri="https://zenodo.org/record/6952012/files/figure.png" pageId="14" pageNumber="35">Fig. 113</figureCitation>
|
||
). Internal distal raphe terminal fissures slightly elevated into small lobed helictoglossa at some distance from valve apices (
|
||
<figureCitation id="133E2A7A4550FFACFC7EFDB7FB1D0889" box="[990,1203,626,653]" captionStart="FIGURES 112–115" captionStartId="17.[136,243,1438,1460]" captionTargetBox="[151,1435,190,1414]" captionTargetId="figure-18@17.[151,1435,190,1414]" captionTargetPageId="17" captionText="FIGURES 112–115. Afrocymbella cocquytiana sp. nov., SEM internal valve views. 112. View of the whole valve showing raphe structure and areolae without velum. 113. Detail of mid-valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 114. Close view of valve apices showing APF with knobby jointed ridge of silica. 115. Distal raphe fissures slightly raised into small helictoglossae. Scale bars = 10 μm (Fig. 112), 2 μm (Figs 113–115)." figureDoi="http://doi.org/10.5281/zenodo.6952012" httpUri="https://zenodo.org/record/6952012/files/figure.png" pageId="14" pageNumber="35">Figs 112, 114, 115</figureCitation>
|
||
). Striae parallel in the middle, becoming radiate towards the valve apices (
|
||
<figureCitation id="133E2A7A4550FFACFD7BFD53FCD508B4" box="[731,891,662,688]" captionStart="FIGURES 109–111" captionStartId="16.[136,243,1956,1978]" captionTargetBox="[202,1386,190,1932]" captionTargetId="figure-30@16.[202,1386,190,1932]" captionTargetPageId="16" captionText="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." figureDoi="http://doi.org/10.5281/zenodo.6952010" httpUri="https://zenodo.org/record/6952010/files/figure.png" pageId="14" pageNumber="35">Figs 109, 111</figureCitation>
|
||
),
|
||
<quantity id="4CFD9B1A4550FFACFC31FD53FC5B08B4" box="[913,1013,662,688]" metricMagnitude="-1" metricUnit="m" metricValue="2.921" metricValueMax="3.048" metricValueMin="2.794" pageId="14" pageNumber="35" unit="in" value="11.5" valueMax="12.0" valueMin="11.0">11–12 in</quantity>
|
||
10 μm (central area) and approaching
|
||
<quantity id="4CFD9B1A4550FFACFF28FD7FFF6F08D0" box="[136,193,698,724]" metricMagnitude="-1" metricUnit="m" metricValue="3.556" pageId="14" pageNumber="35" unit="in" value="14.0">14 in</quantity>
|
||
10 μm (apices). Central-most striae often more widely and unevenly spaced. Striae continue uninterrupted onto valve mantle (
|
||
<figureCitation id="133E2A7A4550FFACFE88FD1BFE2508FC" box="[296,395,734,760]" captionStart="FIGURES 109–111" captionStartId="16.[136,243,1956,1978]" captionTargetBox="[202,1386,190,1932]" captionTargetId="figure-30@16.[202,1386,190,1932]" captionTargetPageId="16" captionText="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." figureDoi="http://doi.org/10.5281/zenodo.6952010" httpUri="https://zenodo.org/record/6952010/files/figure.png" pageId="14" pageNumber="35">Fig. 109</figureCitation>
|
||
). External areolae slit-like poroids (
|
||
<figureCitation id="133E2A7A4550FFACFCBFFD1BFC1308FC" box="[799,957,734,760]" captionStart="FIGURES 109–111" captionStartId="16.[136,243,1956,1978]" captionTargetBox="[202,1386,190,1932]" captionTargetId="figure-30@16.[202,1386,190,1932]" captionTargetPageId="16" captionText="FIGURES 109–111. Afrocymbella cocquytiana sp. nov., SEM external valve views.109. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 110. Detail of mid-valve showing dorsally deflected proximal raphe ends, small central nodule, and round to slightly elongated stigmoid dorsally positioned. 111. Detail of valve apex showing the striae structure and APF. Scale bars = 10 μm (Fig. 109), 2 μm (Figs 110–111)." figureDoi="http://doi.org/10.5281/zenodo.6952010" httpUri="https://zenodo.org/record/6952010/files/figure.png" pageId="14" pageNumber="35">Figs 109, 110</figureCitation>
|
||
), appearing blocky in LM,
|
||
<quantity id="4CFD9B1A4550FFACFB51FD1BFAFB08FC" box="[1265,1365,734,760]" metricMagnitude="-1" metricUnit="m" metricValue="7.112" metricValueMax="7.62" metricValueMin="6.604" pageId="14" pageNumber="35" unit="in" value="28.0" valueMax="30.0" valueMin="26.0">26–30 in</quantity>
|
||
10 μm. Internal areolae ellipsoid without velum (
|
||
<figureCitation id="133E2A7A4550FFACFDF7FCC7FD5D0918" box="[599,755,770,796]" captionStart="FIGURES 112–115" captionStartId="17.[136,243,1438,1460]" captionTargetBox="[151,1435,190,1414]" captionTargetId="figure-18@17.[151,1435,190,1414]" captionTargetPageId="17" captionText="FIGURES 112–115. Afrocymbella cocquytiana sp. nov., SEM internal valve views. 112. View of the whole valve showing raphe structure and areolae without velum. 113. Detail of mid-valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 114. Close view of valve apices showing APF with knobby jointed ridge of silica. 115. Distal raphe fissures slightly raised into small helictoglossae. Scale bars = 10 μm (Fig. 112), 2 μm (Figs 113–115)." figureDoi="http://doi.org/10.5281/zenodo.6952012" httpUri="https://zenodo.org/record/6952012/files/figure.png" pageId="14" pageNumber="35">Figs 112, 113</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C31F65744550FFACFF1DFCE3FB7509D5" pageId="14" pageNumber="35" type="materials_examined">
|
||
<paragraph id="8BBA36FF4550FFACFF1DFCE3FEB209A8" blockId="14.[136,1452,229,1156]" pageId="14" pageNumber="35">
|
||
<emphasis id="B971EAED4550FFACFF1DFCE3FEB00944" bold="true" box="[189,286,806,832]" pageId="14" pageNumber="35">Type:—</emphasis>
|
||
<materialsCitation id="3B6D3CA24550FFACFEBDFCE3FEB209A8" ID-GBIF-Occurrence="3874591301" collectingDate="2018-09-08" collectorName="A. Indermaur & F. Ronco" country="Zambia" elevation="1220" latitude="-8.596389" location="Upstream" longLatPrecision="1" longitude="31.239529" municipality="Kalambo River Falls" pageId="14" pageNumber="35" specimenCount="1" typeStatus="holotype">
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||
<collectingCountry id="F312766F4550FFACFEBDFCE3FDE50944" box="[285,587,806,832]" name="Zambia" pageId="14" pageNumber="35">REPUBLIC OF ZAMBIA</collectingCountry>
|
||
.
|
||
<location id="8EDA60244550FFACFDF7FCE3FD6A0944" LSID="urn:lsid:plazi:treatment:03AC87E94550FFACFF28FF58FD120E80:8EDA60244550FFACFDF7FCE3FD6A0944" box="[599,708,806,832]" country="Zambia" latitude="-8.596389" longLatPrecision="1" longitude="31.239529" municipality="Kalambo River Falls" name="Upstream" pageId="14" pageNumber="35">Upstream</location>
|
||
from the
|
||
<collectingMunicipality id="6BDEAC854550FFACFC96FCE3FB8B0944" box="[822,1061,806,832]" pageId="14" pageNumber="35">Kalambo River Falls</collectingMunicipality>
|
||
, at
|
||
<quantity id="4CFD9B1A4550FFACFBEEFCE3FB0A0944" box="[1102,1188,806,832]" metricMagnitude="3" metricUnit="m" metricValue="1.22" pageId="14" pageNumber="35" unit="m" value="1220.0">
|
||
<elevation id="0028D1CC4550FFACFBEEFCE3FB0A0944" box="[1102,1188,806,832]" metricMagnitude="3" metricUnit="m" metricValue="1.22" pageId="14" pageNumber="35" unit="m" value="1220.0">1220 m</elevation>
|
||
</quantity>
|
||
elevation, rock scrape,
|
||
<geoCoordinate id="EE3150384550FFACFF28FC8FFEB40960" box="[136,282,842,869]" degrees="8" direction="south" minutes="35" orientation="latitude" pageId="14" pageNumber="35" precision="1" seconds="47.0" value="-8.596389">8°35’47.0” S</geoCoordinate>
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||
<geoCoordinate id="EE3150384550FFACFE80FC8FFE6D0960" box="[288,451,842,868]" degrees="31" direction="east" minutes="14" orientation="longitude" pageId="14" pageNumber="35" precision="1" seconds="22.3" value="31.239529">31°14’22.3” E</geoCoordinate>
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||
,
|
||
<emphasis id="B971EAED4550FFACFE6EFC8FFC130960" box="[462,957,841,868]" italics="true" pageId="14" pageNumber="35">
|
||
<collectorName id="26F053294550FFACFE6EFC8FFDF00960" box="[462,606,842,868]" pageId="14" pageNumber="35">A.Indermaur</collectorName>
|
||
&
|
||
<collectorName id="26F053294550FFACFDDFFC8EFD700960" box="[639,734,843,868]" pageId="14" pageNumber="35">F.Ronco</collectorName>
|
||
,
|
||
<date id="FFBB103F4550FFACFD48FC8FFD580960" box="[744,758,842,868]" pageId="14" pageNumber="35" value="2018-09-08">
|
||
<collectingDate id="EFFFE9D74550FFACFD48FC8FFD580960" box="[744,758,842,868]" pageId="14" pageNumber="35" value="2018-09-08">8</collectingDate>
|
||
</date>
|
||
<superScript id="7C709BB74550FFACFD56FC8CFCAD0953" attach="left" box="[758,771,841,855]" fontSize="6" pageId="14" pageNumber="35">th</superScript>
|
||
September 2018
|
||
</emphasis>
|
||
(
|
||
<typeStatus id="54BE885D4550FFACFC6BFC8FFB810960" box="[971,1071,842,868]" pageId="14" pageNumber="35" type="holotype">holotype</typeStatus>
|
||
designated here, circled specimen ANS-GC17198! =
|
||
<figureCitation id="133E2A7A4550FFACFEFFFCABFE1C098C" box="[351,434,878,904]" captionStart="FIGURES 87–108" captionStartId="15.[136,243,1856,1878]" captionTargetBox="[151,1436,317,1831]" captionTargetId="figure-75@15.[151,1436,317,1831]" captionTargetPageId="15" captionText="FIGURES 87–108. Afrocymbella cocquytiana sp. nov., LM valve views. All valves from the type material. Fig. 93. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6952008" httpUri="https://zenodo.org/record/6952008/files/figure.png" pageId="14" pageNumber="35">Fig. 93</figureCitation>
|
||
, isotypes circled specimens ANS-GC17199!, BM-101980!. Cleaned type materials: ANSGCM 33028.
|
||
</materialsCitation>
|
||
</paragraph>
|
||
<paragraph id="8BBA36FF4550FFACFF1DFC73FB7509D5" blockId="14.[136,1452,229,1156]" box="[189,1243,950,977]" pageId="14" pageNumber="35">Registration: https://zoobank.org/NomenclaturalActs/468dba87-d6ff-4bfb-95f7-2f5c20b83e4f</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C31F65744550FFACFF1DFC1FFDC40E1C" pageId="14" pageNumber="35" type="etymology">
|
||
<paragraph id="8BBA36FF4550FFACFF1DFC1FFDC40E1C" blockId="14.[136,1452,229,1156]" pageId="14" pageNumber="35">
|
||
<emphasis id="B971EAED4550FFACFF1DFC1FFECA09F0" bold="true" box="[189,356,986,1012]" pageId="14" pageNumber="35">Etymology:—</emphasis>
|
||
The species name ‘
|
||
<taxonomicName id="4C054D7C4550FFACFD9CFC1EFD6B09F0" authorityName="Stone & Wilson & Jovanovska" authorityYear="2022" box="[572,709,987,1012]" class="Bacillariophyceae" family="Cymbellaceae" genus="Afrocymbella" higherTaxonomySource="GBIF" kingdom="Chromista" order="Cymbellales" pageId="14" pageNumber="35" phylum="Ochrophyta" rank="species" species="cocquytiana">
|
||
<emphasis id="B971EAED4550FFACFD9CFC1EFD6B09F0" box="[572,709,987,1012]" italics="true" pageId="14" pageNumber="35">cocquytiana</emphasis>
|
||
</taxonomicName>
|
||
’ honors Dr. Christine Cocquyt, who has contributed greatly to the diatom taxonomy of the African Rift lakes.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C31F65744550FFACFF1DFBE4FD120E80" pageId="14" pageNumber="35" type="distribution">
|
||
<paragraph id="8BBA36FF4550FFACFF1DFBE4FD120E80" blockId="14.[136,1452,229,1156]" pageId="14" pageNumber="35">
|
||
<emphasis id="B971EAED4550FFACFF1DFBE4FEDB0E3F" bold="true" box="[189,373,1057,1083]" pageId="14" pageNumber="35">Distribution:—</emphasis>
|
||
This species was only observed in abundance from the Kalambo River (Ka), which marks the boundary between
|
||
<collectingCountry id="F312766F4550FFACFEFFFB83FE6A0E64" box="[351,452,1094,1120]" name="Tanzania" pageId="14" pageNumber="35">Tanzania</collectingCountry>
|
||
and
|
||
<collectingCountry id="F312766F4550FFACFE5CFB83FDFC0E64" box="[508,594,1094,1120]" name="Zambia" pageId="14" pageNumber="35">Zambia</collectingCountry>
|
||
(
|
||
<figureCitation id="133E2A7A4550FFACFDC2FB83FD0B0E64" box="[610,677,1094,1120]" captionStart="FIGURE 1" captionStartId="2.[136,229,2013,2035]" captionTargetBox="[311,1276,350,1986]" captionTargetId="figure-119@2.[311,1276,350,1986]" captionTargetPageId="2" captionText="FIGURE 1. Map of the lakes Tanganyika and Malawi, showing the sampling locations of modern (red circles) and fossil (cores MAL05- 1C and NPO4-KH1-1K; white circles) specimens used in this study." figureDoi="http://doi.org/10.5281/zenodo.6951975" httpUri="https://zenodo.org/record/6951975/files/figure.png" pageId="14" pageNumber="35">Fig. 1</figureCitation>
|
||
). We also observed a small population of this species in Isanga Bay (Is) in the southern sub-basin of Lake Tanganyika.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |