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<document ID-DOI="10.11646/phytotaxa.593.1.1" ID-GBIF-Dataset="ef558f00-24a4-4671-bf56-df3c1d61ecd1" ID-ISSN="1179-3163" ID-Zenodo-Dep="7875089" IM.bibliography_approvedBy="tatiana" IM.illustrations_approvedBy="tatiana" IM.materialsCitations_approvedBy="tatiana" IM.metadata_approvedBy="tatiana" IM.tables_approvedBy="tatiana" IM.taxonomicNames_approvedBy="tatiana" IM.treatments_approvedBy="tatiana" checkinTime="1682061103176" checkinUser="plazi" docAuthor="Jovanovska, Elena, Wilson, Mallory C., Hamilton, Paul B. &amp; Stone, Jeffery" docDate="2023" docId="038487E2FF9C2600BCF1FF0ABB3875F6" docLanguage="en" docName="phytotaxa.593.1.1.pdf" docOrigin="Phytotaxa 593 (1)" docSource="http://dx.doi.org/10.11646/phytotaxa.593.1.1" docStyle="DocumentStyle:F08184CE06D8A97EA3E6DE35D99648B0.2:Phytotaxa.2014-.monograph" docStyleId="F08184CE06D8A97EA3E6DE35D99648B0" docStyleName="Phytotaxa.2014-.monograph" docStyleVersion="2" docTitle="Diploneis cocquytiana Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone 2023, sp. nov." docType="treatment" docVersion="4" lastPageNumber="67" masterDocId="FFBDFF9AFFDE2642BC79FF97B8647004" masterDocTitle="Morphological and molecular characterization of twenty-five new Diploneis species (Bacillariophyta) from Lake Tanganyika and its surrounding areas" masterLastPageNumber="102" masterPageNumber="1" pageNumber="67" updateTime="1683016984500" updateUser="tatiana">
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<mods:title>Morphological and molecular characterization of twenty-five new Diploneis species (Bacillariophyta) from Lake Tanganyika and its surrounding areas</mods:title>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Jovanovska, Elena</mods:namePart>
<mods:nameIdentifier type="ORCID">0000-0002-3413-3683</mods:nameIdentifier>
<mods:affiliation>Department of Paleoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Germany &amp; jovanovska. eci @ gmail. com; https: // orcid. org / 0000 - 0002 - 3413 - 3683</mods:affiliation>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Wilson, Mallory C.</mods:namePart>
<mods:nameIdentifier type="ORCID">0000-0002-2852-125X</mods:nameIdentifier>
<mods:affiliation>Department of Paleoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Germany &amp; Indiana State University, Indiana State University, Terre Haute, IN, USA &amp; mwilson 108 @ sycamores. indstate. edu; https: // orcid. org / 0000 - 0002 - 2852 - 125 X</mods:affiliation>
<mods:nameIdentifier type="email">mwilson108@sycamores.indstate.edu</mods:nameIdentifier>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Hamilton, Paul B.</mods:namePart>
<mods:nameIdentifier type="ORCID">0000-0001-6938-6341</mods:nameIdentifier>
<mods:affiliation>Phycology Section, Research and Collections Division, Canadian Museum of Nature, Ottawa, Canada &amp; phamilton @ nature. ca; https: // orcid. org / 0000 - 0001 - 6938 - 6341</mods:affiliation>
<mods:nameIdentifier type="email">phamilton@nature.ca</mods:nameIdentifier>
</mods:name>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Stone, Jeffery</mods:namePart>
<mods:nameIdentifier type="ORCID">0000-0002-1313-0643</mods:nameIdentifier>
<mods:affiliation>Department of Paleoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Germany &amp; Indiana State University, Indiana State University, Terre Haute, IN, USA &amp; Department of Paleoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Germany &amp; jeffery. stone @ indstate. edu; https: // orcid. org / 0000 - 0002 - 1313 - 0643 * Corresponding author &amp; Department of Paleoanthropology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Germany</mods:affiliation>
<mods:nameIdentifier type="email">jeffery.stone@indstate.edu</mods:nameIdentifier>
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<mods:title>Phytotaxa</mods:title>
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<mods:date>2023</mods:date>
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<mods:number>2023-04-21</mods:number>
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<mods:number>593</mods:number>
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<mods:identifier type="DOI">10.11646/phytotaxa.593.1.1</mods:identifier>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.7875197" ID-Zenodo-Dep="7875197" LSID="urn:lsid:plazi:treatment:038487E2FF9C2600BCF1FF0ABB3875F6" httpUri="http://treatment.plazi.org/id/038487E2FF9C2600BCF1FF0ABB3875F6" lastPageNumber="67" pageId="66" pageNumber="67">
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<paragraph blockId="66.[136,947,157,184]" box="[136,947,157,184]" pageId="66" pageNumber="67">
<heading box="[136,947,157,184]" fontSize="11" level="2" pageId="66" pageNumber="67" reason="5">
<taxonomicName authority="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone, 2023" authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" box="[136,394,157,184]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="cocquytiana" status="sp. nov.">Diploneis cocquytiana</taxonomicName>
<taxonomicNameLabel box="[401,487,158,184]" pageId="66" pageNumber="67" rank="species">
<emphasis box="[401,479,159,184]" italics="true" pageId="66" pageNumber="67">sp. nov</emphasis>
.
</taxonomicNameLabel>
(LM
<figureCitation box="[552,709,158,184]" captionStart="FIGURES 419433" captionStartId="67.[136,243,1886,1908]" captionTargetBox="[200,1387,193,1859]" captionTargetId="figure-18@67.[198,1388,191,1859]" captionTargetPageId="67" captionText="FIGURES 419433. Diploneis cocquytiana sp. nov., LM valve views, Lake Tanganyika. 419, 420, 422, 423426, 428, 429, 431, 432. Specimens from Kalambo Falls Lodge. 421, 427, 430. Specimens from Kiganza Bay. 433. Specimen from Rukoma area. Fig. 429. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.7875236" httpUri="https://zenodo.org/record/7875236/files/figure.png" pageId="66" pageNumber="67">Figs 419433</figureCitation>
, SEM
<figureCitation box="[784,939,158,184]" captionStart-0="FIGURES 434438" captionStart-1="FIGURES 439441" captionStartId-0="68.[136,243,1955,1977]" captionStartId-1="69.[136,243,1619,1641]" captionTargetBox-0="[178,1407,194,1930]" captionTargetBox-1="[151,1433,194,1593]" captionTargetId-0="figure-23@68.[177,1408,193,1932]" captionTargetId-1="figure-18@69.[150,1434,193,1595]" captionTargetPageId-0="68" captionTargetPageId-1="69" captionText-0="FIGURES 434438. Diploneis cocquytiana sp. nov., SEM external valve views, Lake Tanganyika, Isanga Bay. 434, 437. View of a whole valve. 435. Mid-valve, showing linear extended teardrop shaped depressions with proximal raphe ends and serrated inter-areolar fin-like shaped ornamentations. 436. Half-valve, showing the raphe branch system. 438. Distal raphe end with deflected terminal fissure; white arrowed uniseriate becoming biseriate striae pattern. Scale bars = 10 μm (Figs 434, 437), 5 μm (Figs 435, 436, 438)." captionText-1="FIGURES 439441. Diploneis cocquytiana sp. nov., SEM internal valve views, Lake Tanganyika, Mutondwe Island. 439.A whole valve. 440. Detail valve apices, showing simple and slightly elevated distal raphe ends and openings of the alveoli covered by thin silica layer. 441. Central area with simple and slightly elevated proximal raphe ends. Scale bars = 10 μm (Fig. 439), 5 μm (Figs 440, 441)." figureDoi-0="http://doi.org/10.5281/zenodo.7875238" figureDoi-1="http://doi.org/10.5281/zenodo.7875241" httpUri-0="https://zenodo.org/record/7875238/files/figure.png" httpUri-1="https://zenodo.org/record/7875241/files/figure.png" pageId="66" pageNumber="67">Figs 434441</figureCitation>
)
</heading>
</paragraph>
<paragraph blockId="66.[136,1452,228,1522]" pageId="66" pageNumber="67">
Valves are weakly asymmetric, linear-elliptic with parallel to weakly convex margins and round apices (
<figureCitation captionStart-0="FIGURES 419433" captionStart-1="FIGURES 434438" captionStartId-0="67.[136,243,1886,1908]" captionStartId-1="68.[136,243,1955,1977]" captionTargetBox-0="[200,1387,193,1859]" captionTargetBox-1="[178,1407,194,1930]" captionTargetId-0="figure-18@67.[198,1388,191,1859]" captionTargetId-1="figure-23@68.[177,1408,193,1932]" captionTargetPageId-0="67" captionTargetPageId-1="68" captionText-0="FIGURES 419433. Diploneis cocquytiana sp. nov., LM valve views, Lake Tanganyika. 419, 420, 422, 423426, 428, 429, 431, 432. Specimens from Kalambo Falls Lodge. 421, 427, 430. Specimens from Kiganza Bay. 433. Specimen from Rukoma area. Fig. 429. Holotype specimen. Scale bar = 10 μm." captionText-1="FIGURES 434438. Diploneis cocquytiana sp. nov., SEM external valve views, Lake Tanganyika, Isanga Bay. 434, 437. View of a whole valve. 435. Mid-valve, showing linear extended teardrop shaped depressions with proximal raphe ends and serrated inter-areolar fin-like shaped ornamentations. 436. Half-valve, showing the raphe branch system. 438. Distal raphe end with deflected terminal fissure; white arrowed uniseriate becoming biseriate striae pattern. Scale bars = 10 μm (Figs 434, 437), 5 μm (Figs 435, 436, 438)." figureDoi-0="http://doi.org/10.5281/zenodo.7875236" figureDoi-1="http://doi.org/10.5281/zenodo.7875238" httpUri-0="https://zenodo.org/record/7875236/files/figure.png" httpUri-1="https://zenodo.org/record/7875238/files/figure.png" pageId="66" pageNumber="67">Figs 419 434</figureCitation>
). Valve length is 35.562 μm and width is 1520 μm. The axial area is narrow, lanceolate, slightly expanding into a small to indistinguishable central area (
<figureCitation box="[597,700,298,325]" captionStart="FIGURES 419433" captionStartId="67.[136,243,1886,1908]" captionTargetBox="[200,1387,193,1859]" captionTargetId="figure-18@67.[198,1388,191,1859]" captionTargetPageId="67" captionText="FIGURES 419433. Diploneis cocquytiana sp. nov., LM valve views, Lake Tanganyika. 419, 420, 422, 423426, 428, 429, 431, 432. Specimens from Kalambo Falls Lodge. 421, 427, 430. Specimens from Kiganza Bay. 433. Specimen from Rukoma area. Fig. 429. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.7875236" httpUri="https://zenodo.org/record/7875236/files/figure.png" pageId="66" pageNumber="67">Figs 420</figureCitation>
,
<figureCitation box="[711,813,298,325]" captionStart="FIGURES 434438" captionStartId="68.[136,243,1955,1977]" captionTargetBox="[178,1407,194,1930]" captionTargetId="figure-23@68.[177,1408,193,1932]" captionTargetPageId="68" captionText="FIGURES 434438. Diploneis cocquytiana sp. nov., SEM external valve views, Lake Tanganyika, Isanga Bay. 434, 437. View of a whole valve. 435. Mid-valve, showing linear extended teardrop shaped depressions with proximal raphe ends and serrated inter-areolar fin-like shaped ornamentations. 436. Half-valve, showing the raphe branch system. 438. Distal raphe end with deflected terminal fissure; white arrowed uniseriate becoming biseriate striae pattern. Scale bars = 10 μm (Figs 434, 437), 5 μm (Figs 435, 436, 438)." figureDoi="http://doi.org/10.5281/zenodo.7875238" httpUri="https://zenodo.org/record/7875238/files/figure.png" pageId="66" pageNumber="67">434, 435</figureCitation>
), 34.8 μm wide. Externally, the canal is broad, linear to lanceolate, slightly expanded in the middle of the valve with four rows of cribrate (ca. 10 poroids) areolae narrowing into one at the valve apices (
<figureCitation box="[449,550,369,395]" captionStart="FIGURES 419433" captionStartId="67.[136,243,1886,1908]" captionTargetBox="[200,1387,193,1859]" captionTargetId="figure-18@67.[198,1388,191,1859]" captionTargetPageId="67" captionText="FIGURES 419433. Diploneis cocquytiana sp. nov., LM valve views, Lake Tanganyika. 419, 420, 422, 423426, 428, 429, 431, 432. Specimens from Kalambo Falls Lodge. 421, 427, 430. Specimens from Kiganza Bay. 433. Specimen from Rukoma area. Fig. 429. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.7875236" httpUri="https://zenodo.org/record/7875236/files/figure.png" pageId="66" pageNumber="67">Figs 420</figureCitation>
,
<figureCitation box="[560,716,369,396]" captionStart="FIGURES 434438" captionStartId="68.[136,243,1955,1977]" captionTargetBox="[178,1407,194,1930]" captionTargetId="figure-23@68.[177,1408,193,1932]" captionTargetPageId="68" captionText="FIGURES 434438. Diploneis cocquytiana sp. nov., SEM external valve views, Lake Tanganyika, Isanga Bay. 434, 437. View of a whole valve. 435. Mid-valve, showing linear extended teardrop shaped depressions with proximal raphe ends and serrated inter-areolar fin-like shaped ornamentations. 436. Half-valve, showing the raphe branch system. 438. Distal raphe end with deflected terminal fissure; white arrowed uniseriate becoming biseriate striae pattern. Scale bars = 10 μm (Figs 434, 437), 5 μm (Figs 435, 436, 438)." figureDoi="http://doi.org/10.5281/zenodo.7875238" httpUri="https://zenodo.org/record/7875238/files/figure.png" pageId="66" pageNumber="67">434, 435, 437</figureCitation>
). Internally, a thick non-porous slightly raised silica plate encloses the longitudinal canal (
<figureCitation box="[395,494,404,430]" captionStart="FIGURES 439441" captionStartId="69.[136,243,1619,1641]" captionTargetBox="[151,1433,194,1593]" captionTargetId="figure-18@69.[150,1434,193,1595]" captionTargetPageId="69" captionText="FIGURES 439441. Diploneis cocquytiana sp. nov., SEM internal valve views, Lake Tanganyika, Mutondwe Island. 439.A whole valve. 440. Detail valve apices, showing simple and slightly elevated distal raphe ends and openings of the alveoli covered by thin silica layer. 441. Central area with simple and slightly elevated proximal raphe ends. Scale bars = 10 μm (Fig. 439), 5 μm (Figs 440, 441)." figureDoi="http://doi.org/10.5281/zenodo.7875241" httpUri="https://zenodo.org/record/7875241/files/figure.png" pageId="66" pageNumber="67">Fig. 439</figureCitation>
). Externally, the raphe is filiform, curved with simple deflected proximal ends; linear expanded lanceolate depressions hold the proximal ends (
<figureCitation box="[779,937,439,466]" captionStart="FIGURES 434438" captionStartId="68.[136,243,1955,1977]" captionTargetBox="[178,1407,194,1930]" captionTargetId="figure-23@68.[177,1408,193,1932]" captionTargetPageId="68" captionText="FIGURES 434438. Diploneis cocquytiana sp. nov., SEM external valve views, Lake Tanganyika, Isanga Bay. 434, 437. View of a whole valve. 435. Mid-valve, showing linear extended teardrop shaped depressions with proximal raphe ends and serrated inter-areolar fin-like shaped ornamentations. 436. Half-valve, showing the raphe branch system. 438. Distal raphe end with deflected terminal fissure; white arrowed uniseriate becoming biseriate striae pattern. Scale bars = 10 μm (Figs 434, 437), 5 μm (Figs 435, 436, 438)." figureDoi="http://doi.org/10.5281/zenodo.7875238" httpUri="https://zenodo.org/record/7875238/files/figure.png" pageId="66" pageNumber="67">Figs 435, 437</figureCitation>
). The distal raphe ends are unilaterally bent to the same side and terminate on the valve face at the mantle (
<figureCitation box="[820,1037,474,501]" captionStart="FIGURES 434438" captionStartId="68.[136,243,1955,1977]" captionTargetBox="[178,1407,194,1930]" captionTargetId="figure-23@68.[177,1408,193,1932]" captionTargetPageId="68" captionText="FIGURES 434438. Diploneis cocquytiana sp. nov., SEM external valve views, Lake Tanganyika, Isanga Bay. 434, 437. View of a whole valve. 435. Mid-valve, showing linear extended teardrop shaped depressions with proximal raphe ends and serrated inter-areolar fin-like shaped ornamentations. 436. Half-valve, showing the raphe branch system. 438. Distal raphe end with deflected terminal fissure; white arrowed uniseriate becoming biseriate striae pattern. Scale bars = 10 μm (Figs 434, 437), 5 μm (Figs 435, 436, 438)." figureDoi="http://doi.org/10.5281/zenodo.7875238" httpUri="https://zenodo.org/record/7875238/files/figure.png" pageId="66" pageNumber="67">Figs 434, 436, 438</figureCitation>
). Internally, the raphe is curved with simple proximal and distal ends that are slightly elevated with a small helictoglossa, and positioned in a depression formed by the longitudinal canal (
<figureCitation box="[525,687,545,571]" captionStart="FIGURES 439441" captionStartId="69.[136,243,1619,1641]" captionTargetBox="[151,1433,194,1593]" captionTargetId="figure-18@69.[150,1434,193,1595]" captionTargetPageId="69" captionText="FIGURES 439441. Diploneis cocquytiana sp. nov., SEM internal valve views, Lake Tanganyika, Mutondwe Island. 439.A whole valve. 440. Detail valve apices, showing simple and slightly elevated distal raphe ends and openings of the alveoli covered by thin silica layer. 441. Central area with simple and slightly elevated proximal raphe ends. Scale bars = 10 μm (Fig. 439), 5 μm (Figs 440, 441)." figureDoi="http://doi.org/10.5281/zenodo.7875241" httpUri="https://zenodo.org/record/7875241/files/figure.png" pageId="66" pageNumber="67">Figs 439441</figureCitation>
). The striae are parallel at mid-valve becoming radiate towards the apices, 910(11) in 10 μm. Striae are uniseriate becoming biseriate towards the valve margins (white arrow in
<figureCitation box="[1343,1439,580,606]" captionStart="FIGURES 434438" captionStartId="68.[136,243,1955,1977]" captionTargetBox="[178,1407,194,1930]" captionTargetId="figure-23@68.[177,1408,193,1932]" captionTargetPageId="68" captionText="FIGURES 434438. Diploneis cocquytiana sp. nov., SEM external valve views, Lake Tanganyika, Isanga Bay. 434, 437. View of a whole valve. 435. Mid-valve, showing linear extended teardrop shaped depressions with proximal raphe ends and serrated inter-areolar fin-like shaped ornamentations. 436. Half-valve, showing the raphe branch system. 438. Distal raphe end with deflected terminal fissure; white arrowed uniseriate becoming biseriate striae pattern. Scale bars = 10 μm (Figs 434, 437), 5 μm (Figs 435, 436, 438)." figureDoi="http://doi.org/10.5281/zenodo.7875238" httpUri="https://zenodo.org/record/7875238/files/figure.png" pageId="66" pageNumber="67">Fig. 438</figureCitation>
). The striae are composed of round to rectangular areolae covered externally with fine pored cribra (2030 poroids),
<quantity box="[136,238,650,677]" metricMagnitude="-1" metricUnit="m" metricValue="4.445" metricValueMax="5.08" metricValueMin="3.81" pageId="66" pageNumber="67" unit="in" value="17.5" valueMax="20.0" valueMin="15.0">1520 in</quantity>
10 μm. The inter-areolar thickenings have fin-like silica ridges serrated with ca. 58 notched edges. The areolae increase in size towards the valve margins (
<figureCitation box="[716,876,686,713]" captionStart="FIGURES 434438" captionStartId="68.[136,243,1955,1977]" captionTargetBox="[178,1407,194,1930]" captionTargetId="figure-23@68.[177,1408,193,1932]" captionTargetPageId="68" captionText="FIGURES 434438. Diploneis cocquytiana sp. nov., SEM external valve views, Lake Tanganyika, Isanga Bay. 434, 437. View of a whole valve. 435. Mid-valve, showing linear extended teardrop shaped depressions with proximal raphe ends and serrated inter-areolar fin-like shaped ornamentations. 436. Half-valve, showing the raphe branch system. 438. Distal raphe end with deflected terminal fissure; white arrowed uniseriate becoming biseriate striae pattern. Scale bars = 10 μm (Figs 434, 437), 5 μm (Figs 435, 436, 438)." figureDoi="http://doi.org/10.5281/zenodo.7875238" httpUri="https://zenodo.org/record/7875238/files/figure.png" pageId="66" pageNumber="67">Figs 435, 438</figureCitation>
). Internally, the alveoli open via a single elongated opening covered with a thin silica layer (
<figureCitation box="[593,752,721,747]" captionStart="FIGURES 439441" captionStartId="69.[136,243,1619,1641]" captionTargetBox="[151,1433,194,1593]" captionTargetId="figure-18@69.[150,1434,193,1595]" captionTargetPageId="69" captionText="FIGURES 439441. Diploneis cocquytiana sp. nov., SEM internal valve views, Lake Tanganyika, Mutondwe Island. 439.A whole valve. 440. Detail valve apices, showing simple and slightly elevated distal raphe ends and openings of the alveoli covered by thin silica layer. 441. Central area with simple and slightly elevated proximal raphe ends. Scale bars = 10 μm (Fig. 439), 5 μm (Figs 440, 441)." figureDoi="http://doi.org/10.5281/zenodo.7875241" httpUri="https://zenodo.org/record/7875241/files/figure.png" pageId="66" pageNumber="67">Figs 439, 440</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="66" pageNumber="67" type="materials_examined">
<paragraph blockId="66.[136,1452,228,1522]" pageId="66" pageNumber="67">
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elevation; mud,
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diving,
<geoCoordinate box="[512,660,791,818]" degrees="8" direction="south" minutes="37" orientation="latitude" pageId="66" pageNumber="67" precision="1" seconds="25.6" value="-8.623778">8°3725.6” S</geoCoordinate>
<geoCoordinate box="[668,833,791,818]" degrees="31" direction="east" minutes="11" orientation="longitude" pageId="66" pageNumber="67" precision="1" seconds="59.7" value="31.199915">31°1159.7” E</geoCoordinate>
,
<emphasis box="[847,975,791,817]" italics="true" pageId="66" pageNumber="67">
<collectorName box="[847,975,791,817]" pageId="66" pageNumber="67">H. Büscher</collectorName>
</emphasis>
,
<emphasis box="[990,1207,791,817]" italics="true" pageId="66" pageNumber="67">
<date box="[990,1207,791,817]" pageId="66" pageNumber="67" value="2018-09-01">
<collectingDate box="[990,1207,791,817]" pageId="66" pageNumber="67" value="2018-09-01">
1
<superScript attach="left" box="[1004,1015,792,806]" fontSize="6" pageId="66" pageNumber="67">st</superScript>
September 2018
</collectingDate>
</date>
</emphasis>
(
<typeStatus box="[1223,1323,791,817]" pageId="66" pageNumber="67">holotype</typeStatus>
designated here, circled specimen
<specimenCode box="[397,538,827,853]" collectionCode="BM" country="United Kingdom" name="Bristol Museum" pageId="66" pageNumber="67">BM 108984</specimenCode>
! =
<figureCitation box="[573,670,826,853]" captionStart="FIGURES 419433" captionStartId="67.[136,243,1886,1908]" captionTargetBox="[200,1387,193,1859]" captionTargetId="figure-18@67.[198,1388,191,1859]" captionTargetPageId="67" captionText="FIGURES 419433. Diploneis cocquytiana sp. nov., LM valve views, Lake Tanganyika. 419, 420, 422, 423426, 428, 429, 431, 432. Specimens from Kalambo Falls Lodge. 421, 427, 430. Specimens from Kiganza Bay. 433. Specimen from Rukoma area. Fig. 429. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.7875236" httpUri="https://zenodo.org/record/7875236/files/figure.png" pageId="66" pageNumber="67">Fig. 429</figureCitation>
,
</materialsCitation>
<materialsCitation collectingDate="2018-09-01" collectionCode="SCUBA" collectorName="H. Buscher" country="Zambia" county="Kalambo Falls" elevation="770" latitude="-8.623778" location="Lake Tanganyika" longLatPrecision="1" longitude="31.199915" municipality="Kalambo Falls Lodge" pageId="66" pageNumber="67" specimenCode="ANSP-GC17213" specimenCount="1" typeStatus="isotype">
isotypes
<specimenCode box="[780,978,827,853]" collectionCode="ANSP-GC" pageId="66" pageNumber="67">ANSP-GC17213</specimenCode>
!, CANA-129315!). Type material CANA-129315. Registration: http://phycobank.org/103700
</materialsCitation>
</paragraph>
<paragraph blockId="66.[136,1452,228,1522]" box="[189,1191,897,923]" pageId="66" pageNumber="67">
<emphasis bold="true" box="[189,615,897,923]" pageId="66" pageNumber="67">Pictures of the isolated specimen:—</emphasis>
LM micrograph on 1000× magnification (
<figureCitation box="[1085,1178,897,923]" captionStart="FIGURES 211" captionStartId="8.[136,243,1955,1977]" captionTargetBox="[203,1382,194,1930]" captionTargetId="figure-23@8.[201,1383,193,1932]" captionTargetPageId="8" captionText="FIGURES 211. Diploneis salzburgeri sp. nov., LM valve views, Lake Tanganyika. 2, 3, 5, 6, 9. Specimens from southern parts of Lake Tanganyika, Kalambo Falls Lodge. 4. Specimen from Kalya Bay. 7. Specimen from Ndole Bay. 8. Specimen from Jakobsen Beach, near Kigoma. 10, 11. Specimens from Buhingu Island. Fig. 7. Holotype specimen. Scale bar = 10 μm." figureDoi="http://doi.org/10.5281/zenodo.7875095" httpUri="https://zenodo.org/record/7875095/files/figure.png" pageId="66" pageNumber="67">Fig. S2j</figureCitation>
).
</paragraph>
<paragraph blockId="66.[136,1452,228,1522]" box="[189,1097,932,959]" pageId="66" pageNumber="67">
<emphasis bold="true" box="[189,399,932,958]" pageId="66" pageNumber="67">Sequence data:—</emphasis>
Plastid gene
<emphasis box="[542,579,932,958]" italics="true" pageId="66" pageNumber="67">rbc</emphasis>
L sequence (GenBank accession:
<collectionCode box="[956,998,932,958]" pageId="66" pageNumber="67">OQ</collectionCode>
660288).
</paragraph>
</subSubSection>
<subSubSection pageId="66" pageNumber="67" type="etymology">
<paragraph blockId="66.[136,1452,228,1522]" pageId="66" pageNumber="67">
<emphasis bold="true" box="[189,356,967,993]" pageId="66" pageNumber="67">Etymology:—</emphasis>
The specific epithet
<taxonomicName authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" box="[595,732,968,993]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="cocquytiana">
<emphasis box="[595,732,968,993]" italics="true" pageId="66" pageNumber="67">cocquytiana</emphasis>
</taxonomicName>
honors Dr. Christine Cocquyt, who has made many significant contributions to diatom research from materials collected from Lake Tanganyika.
</paragraph>
</subSubSection>
<subSubSection pageId="66" pageNumber="67" type="biology_ecology">
<paragraph blockId="66.[136,1452,228,1522]" pageId="66" pageNumber="67">
<emphasis bold="true" box="[189,525,1037,1064]" pageId="66" pageNumber="67">Ecology and distribution:—</emphasis>
This species has been observed in Lake Tanganyika in the three sub-basins on the shores of
<collectingCountry box="[242,328,1073,1099]" name="Zambia" pageId="66" pageNumber="67">Zambia</collectingCountry>
and
<collectingCountry box="[379,480,1073,1099]" name="Tanzania" pageId="66" pageNumber="67">Tanzania</collectingCountry>
(including the coast of
<collectingCountry box="[738,833,1073,1099]" name="Burundi" pageId="66" pageNumber="67">Burundi</collectingCountry>
;
<bibRefCitation author="Cocquyt, C." box="[843,1003,1073,1099]" pageId="66" pageNumber="67" pagination="7 - 275" refId="ref37675" refString="Cocquyt, C. (1998) Diatoms from the northern basin from Lake Tanaganyika. Bibliotheca Diatomologica 39: 7 - 275. https: // doi. org / 10.1127 / nova. hedwigia / 68 / 1999 / 425" type="journal article" year="1998">Cocquyt 1998</bibRefCitation>
, fig. 14: 4). The species is very abundant in the alkaline, moderately mineral-rich and very transparent lake, where it occurs on sandy and muddy substrates (sometimes with mollusk shells) between 5 and
<quantity box="[693,752,1143,1170]" metricMagnitude="1" metricUnit="m" metricValue="3.6" pageId="66" pageNumber="67" unit="m" value="36.0">36 m</quantity>
water depth. It can also be found in submerged rocks in the littoral areas at Jakobsen Beach or to a water depth of
<quantity box="[769,814,1179,1205]" metricMagnitude="0" metricUnit="m" metricValue="3.0" pageId="66" pageNumber="67" unit="m" value="3.0">3 m</quantity>
in Chituta Bay and free-living (i.e. tychoplanktonic) in plankton to a depth of
<quantity box="[384,440,1214,1240]" metricMagnitude="1" metricUnit="m" metricValue="6.0" pageId="66" pageNumber="67" unit="m" value="60.0">60 m</quantity>
in Mahale National Park, probably resulting from water currents and turbulence.
<emphasis italics="true" pageId="66" pageNumber="67">
<taxonomicName authority="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone, 2023" authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="cocquytiana" status="sp. nov.">Diploneis cocquytiana</taxonomicName>
<taxonomicNameLabel box="[281,366,1250,1275]" pageId="66" pageNumber="67" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
mostly coexists with
<emphasis box="[613,799,1249,1275]" italics="true" pageId="66" pageNumber="67">
<taxonomicName authority="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone, 2023" authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" box="[613,706,1249,1275]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="fossa" status="sp. nov.">D. fossa</taxonomicName>
<taxonomicNameLabel box="[714,799,1250,1275]" pageId="66" pageNumber="67" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
,
<emphasis box="[814,1045,1249,1275]" italics="true" pageId="66" pageNumber="67">
<taxonomicName authority="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone, 2023" authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" box="[814,952,1249,1275]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="serrulata" status="sp. nov.">D. serrulata</taxonomicName>
<taxonomicNameLabel box="[959,1045,1250,1275]" pageId="66" pageNumber="67" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
,
<emphasis box="[1059,1313,1249,1275]" italics="true" pageId="66" pageNumber="67">
<taxonomicName authority="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone, 2023" authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" box="[1059,1220,1249,1275]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="kilhamiana" status="sp. nov.">D. kilhamiana</taxonomicName>
<taxonomicNameLabel box="[1228,1313,1250,1275]" pageId="66" pageNumber="67" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
,
<emphasis italics="true" pageId="66" pageNumber="67">
<taxonomicName authority="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone, 2023" authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" box="[1328,1452,1250,1275]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="angusta" status="sp. nov.">D. angusta</taxonomicName>
<taxonomicNameLabel box="[136,222,1285,1310]" pageId="66" pageNumber="67" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
,
<emphasis box="[236,450,1285,1310]" italics="true" pageId="66" pageNumber="67">
<taxonomicName authority="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone, 2023" authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" box="[236,357,1285,1310]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="cristata" status="sp. nov.">D. cristata</taxonomicName>
<taxonomicNameLabel box="[364,450,1285,1310]" pageId="66" pageNumber="67" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
,
<emphasis box="[464,719,1284,1310]" italics="true" pageId="66" pageNumber="67">
<taxonomicName authority="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone, 2023" authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" box="[464,626,1284,1310]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="salzburgeri" status="sp. nov.">D. salzburgeri</taxonomicName>
<taxonomicNameLabel box="[634,719,1285,1310]" pageId="66" pageNumber="67" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, and
<emphasis box="[782,1047,1284,1310]" italics="true" pageId="66" pageNumber="67">
<taxonomicName authority="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone, 2023" authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" box="[782,954,1284,1310]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="tanganyikae" status="sp. nov.">D. tanganyikae</taxonomicName>
<taxonomicNameLabel box="[962,1047,1285,1310]" pageId="66" pageNumber="67" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
in Kalambo Falls Lodge with well-established populations as well as in Mahale National Park, Cape Nangu at Kasaba Bay, Ndole Bay, Kiganza Bay, Chituta Bay, Mutondwe Island, and the Rukoma area (see
<figureCitation box="[790,895,1354,1380]" captionStart="FIGURE 1" captionStartId="3.[136,229,1594,1616]" captionTargetBox="[171,1421,879,1532]" captionTargetId="figure-263@3.[151,1436,844,1567]" captionTargetPageId="3" captionText="FIGURE 1. Maps ofAfrica with major drainage systems. a) Map of Africa indicating the general location of the East African Rift (framed in bold grey lines). b) Map of East African Rift with sample (purple circles) and type (green circles) localities for all twenty-five new Diploneis species. c) Bathymetric map of the three sub-basins of Lake Tanganyika with close-up of sampling sites in the lake. d) Key sampling sites in the northern Kigoma sub-basin of Lake Tanganyika. e) Key sampling sites in the central Kundwe sub-basin of Lake Tanganyika. f) Key sampling sites in the southern Kipili sub-basin of Lake Tanganyika. Location details for each species are given in the descriptions." figureDoi="http://doi.org/10.5281/zenodo.7875093" httpUri="https://zenodo.org/record/7875093/files/figure.png" pageId="66" pageNumber="67">Fig. 1cf</figureCitation>
).
</paragraph>
<paragraph blockId="66.[136,1452,228,1522]" pageId="66" pageNumber="67">
<emphasis bold="true" box="[189,563,1389,1416]" pageId="66" pageNumber="67">Main differential characters:—</emphasis>
Valve shape, canal width, striae pattern, external fin-like ornamentations across the valve, fins scattered over the canals, and poroids &lt;30 per areola.
</paragraph>
<paragraph blockId="66.[136,1452,228,1522]" pageId="66" pageNumber="67">
<emphasis bold="true" box="[189,405,1460,1486]" pageId="66" pageNumber="67">Similar species:—</emphasis>
<emphasis box="[405,714,1460,1486]" italics="true" pageId="66" pageNumber="67">
<taxonomicName authority="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone, 2023" authorityName="Jovanovska &amp; Wilson &amp; Hamilton &amp; Stone" authorityYear="2023" box="[405,620,1460,1486]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="elongata" status="sp. nov.">Diploneis elongata</taxonomicName>
<taxonomicNameLabel box="[628,714,1461,1486]" pageId="66" pageNumber="67" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
,
<taxonomicName authority="Reichardt &amp; Lange-Bertalot (2004: 433)" authorityName="Reichardt &amp; Lange-Bertalot" authorityPageNumber="433" authorityYear="2004" box="[729,1398,1460,1486]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="fontium">
<emphasis box="[729,932,1460,1486]" italics="true" pageId="66" pageNumber="67">Diploneis fontium</emphasis>
<bibRefCitation author="Reichardt, E." box="[939,1398,1460,1486]" pageId="66" pageNumber="67" pagination="418 - 479" refId="ref39984" refString="Reichardt, E. (2004) Eine bemerkenswerte Diatomeenassoziation in einem Quellhabitat im Grazer Bergland, Osterreich. Ein Beitrag zur Kenntnis seltener und wenig bekannter Diatomeen. Iconographia Diatomologica 13: 418 - 479." type="journal article" year="2004">Reichardt &amp; Lange-Bertalot (2004: 433)</bibRefCitation>
</taxonomicName>
, and
<taxonomicName authority="Lange-Bertalot &amp; Fuhrmann (2020: 85)" authorityName="Lange-Bertalot &amp; Fuhrmann" authorityPageNumber="85" authorityYear="2020" box="[136,856,1495,1522]" class="Bacillariophyceae" family="Naviculaceae" genus="Diploneis" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="66" pageNumber="67" phylum="Bacillariophyta" rank="species" species="mollenhaueri">
<emphasis box="[136,401,1495,1521]" italics="true" pageId="66" pageNumber="67">Diploneis mollenhaueri</emphasis>
<bibRefCitation author="Lange-Bertalot, H. &amp; Fuhrmann, A. &amp; Werum, M." box="[408,856,1495,1522]" pageId="66" pageNumber="67" pagination="691 - 699" refId="ref39004" refString="Lange-Bertalot, H., Fuhrmann, A. &amp; Werum, M. (2020) Freshwater Diploneis: species diversity in the Holarctic and spot checks from elsewhere. In: Lange-Bertalot, H. (Ed.) Diatoms of Europe. Diatoms of European inland water and comparable habitats. Freshwater Diploneis Two studies, Glashutten: Koeltz Botanical Books. pp. 1 - 526, 691 - 699." type="journal article" year="2020">Lange-Bertalot &amp; Fuhrmann (2020: 85)</bibRefCitation>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>