103 lines
11 KiB
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103 lines
11 KiB
XML
<document id="9ECB20BE7DE9C90C71F8152DA3E8282A" ID-CLB-Dataset="27478" ID-DOI="10.11646/zootaxa.4550.3.3" ID-GBIF-Dataset="1204a022-65db-4386-a024-3eb4aebf6b35" ID-ISSN="1175-5326" ID-Zenodo-Dep="2625465" ID-ZooBank="4A6046CC-B1AE-4CFC-8468-5B9FA733EF1D" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1554277140970" checkinUser="plazi" docAuthor="Korovchinsky, Nikolai M." docDate="2019" docId="A54D87B2FFE4C322FF23FAF145C2A4C0" docLanguage="en" docName="zootaxa.4550.3.3.pdf" docOrigin="Zootaxa 4550 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Bythotrephes arcticus Lilljeborg 1901" docType="treatment" docVersion="7" lastPageNumber="346" masterDocId="5974FFCAFFE2C324FFB4FFE94732A27B" masterDocTitle="Morphological assessment of the North Eurasian interspecific hybrid forms of the genus Bythotrephes Leydig, 1860 (Crustacea: Cladocera: Cercopagididae)" masterLastPageNumber="356" masterPageNumber="340" pageNumber="346" updateTime="1698717049296" updateUser="ExternalLinkService">
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<mods:title id="E51093DEA79563127E576A5DAE1559A4">Morphological assessment of the North Eurasian interspecific hybrid forms of the genus Bythotrephes Leydig, 1860 (Crustacea: Cladocera: Cercopagididae)</mods:title>
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<mods:namePart id="62A1BC6C86452787863772DA166A569E">Korovchinsky, Nikolai M.</mods:namePart>
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<mods:title id="6FE47027BCE7786A7EA21C32E3151D9B">Zootaxa</mods:title>
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<mods:part id="94E5880E5E2A6515E52806ADDEFE2085">
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<mods:date id="26BD304BBAECC3EA93749B07FFA754E8">2019</mods:date>
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<mods:number id="A9830B8F01CD6F95464ECE353789C3C3">2019-01-25</mods:number>
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<mods:number id="1A958CC5D8CC43E1F895086D5CCD7793">4550</mods:number>
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<mods:identifier id="E8A13079CD3A027E1E5F4883A9580017" type="DOI">10.11646/zootaxa.4550.3.3</mods:identifier>
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<treatment id="A54D87B2FFE4C322FF23FAF145C2A4C0" ID-DOI="http://doi.org/10.5281/zenodo.5944238" ID-GBIF-Taxon="154532399" ID-Zenodo-Dep="5944238" LSID="urn:lsid:plazi:treatment:A54D87B2FFE4C322FF23FAF145C2A4C0" httpUri="http://treatment.plazi.org/id/A54D87B2FFE4C322FF23FAF145C2A4C0" lastPageNumber="346" pageId="6" pageNumber="346">
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<subSubSection id="65FE652FFFE4C322FF23FAF144ADA74A" box="[151,927,1303,1330]" pageId="6" pageNumber="346" type="nomenclature">
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<paragraph id="2D5B36A4FFE4C322FF23FAF144ADA74A" blockId="6.[151,927,1303,1330]" box="[151,927,1303,1330]" pageId="6" pageNumber="346">
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<heading id="761381C8FFE4C322FF23FAF144ADA74A" bold="true" box="[151,927,1303,1330]" fontSize="11" level="1" pageId="6" pageNumber="346" reason="1">
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<emphasis id="1F90EAB6FFE4C322FF23FAF144ADA74A" bold="true" box="[151,927,1303,1330]" pageId="6" pageNumber="346">
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Hybrid form
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<taxonomicName id="EAE44D27FFE4C322FE8AFAFE4574A74A" authorityName="Lilljeborg" authorityYear="1901" box="[318,582,1303,1329]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="346" phylum="Arthropoda" rank="species" species="arcticus">
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<emphasis id="1F90EAB6FFE4C322FE8AFAFE4574A74A" bold="true" box="[318,582,1303,1329]" italics="true" pageId="6" pageNumber="346">Bythotrephes arcticus</emphasis>
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</taxonomicName>
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x
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<taxonomicName id="EAE44D27FFE4C322FDD7FAFE44ADA74A" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[611,927,1303,1329]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="346" phylum="Arthropoda" rank="species" species="cederstromii">
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<emphasis id="1F90EAB6FFE4C322FDD7FAFE44ADA74A" bold="true" box="[611,927,1303,1329]" italics="true" pageId="6" pageNumber="346">Bythotrephes cederströmii</emphasis>
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</taxonomicName>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="65FE652FFFE4C322FF23FAB644EEA7C4" pageId="6" pageNumber="346" type="description">
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<paragraph id="2D5B36A4FFE4C322FF23FAB644EEA7C4" blockId="6.[151,1437,1374,1723]" pageId="6" pageNumber="346">
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In samples from the delta of the river Severnaya Dvina (north of European
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<collectingCountry id="55F37634FFE4C322FC45FAB74372A70C" box="[1009,1088,1374,1399]" name="Russia" pageId="6" pageNumber="346">Russia</collectingCountry>
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),
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<bibRefCitation id="49754B55FFE4C322FBE0FAB7422FA70C" author="Litvinchuk, L. F." box="[1108,1309,1374,1399]" pageId="6" pageNumber="346" refId="ref7955" refString="Litvinchuk, L. F. (2002) Systematics and distribution of water fleas of the family Cercopagidae (Crustacea, Cladocera) in the north-west of Russia. PhD Thesis, Zoological Institute, St. - Petersburg, 258 pp. [in Russian]" type="book" year="2002">Litvinchuk (2002</bibRefCitation>
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: P. 85, Fig. 15, 2007) found, among many individuals of
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<taxonomicName id="EAE44D27FFE4C322FD23FA6D4422A7E0" authorityName="Lilljeborg" authorityYear="1901" box="[663,784,1412,1435]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="346" phylum="Arthropoda" rank="species" species="arcticus">
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<emphasis id="1F90EAB6FFE4C322FD23FA6D4422A7E0" box="[663,784,1412,1435]" italics="true" pageId="6" pageNumber="346">B. arcticus</emphasis>
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</taxonomicName>
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(syn.
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<taxonomicName id="EAE44D27FFE4C322FCE2FA6D43B0A7E0" authority="Lilljeborg" authorityName="Lilljeborg" box="[854,1154,1410,1435]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="346" phylum="Arthropoda" rank="species" species="crassicaudus">
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<emphasis id="1F90EAB6FFE4C322FCE2FA6D433AA7E0" box="[854,1032,1410,1435]" italics="true" pageId="6" pageNumber="346">B. crassicaudus</emphasis>
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Lilljeborg
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</taxonomicName>
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), one adult female of the interspecific hybrid which she named “
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<taxonomicName id="EAE44D27FFE4C322FDFAFA4E45C8A7C4" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[590,762,1446,1471]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="346" phylum="Arthropoda" rank="species" species="cederstromii">
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<emphasis id="1F90EAB6FFE4C322FDFAFA4E45C8A7C4" box="[590,762,1446,1471]" italics="true" pageId="6" pageNumber="346">B. cederströmii</emphasis>
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</taxonomicName>
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x
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<taxonomicName id="EAE44D27FFE4C322FCA3FA4E44FAA7C4" box="[791,968,1446,1471]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="346" phylum="Arthropoda" rank="species" species="crassicaudus">
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<emphasis id="1F90EAB6FFE4C322FCA3FA4E44FAA7C4" box="[791,968,1446,1471]" italics="true" pageId="6" pageNumber="346">B. crassicaudus</emphasis>
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</taxonomicName>
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”.
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</paragraph>
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</subSubSection>
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<subSubSection id="65FE652FFFE4C322FF73FA2345C2A4C0" pageId="6" pageNumber="346" type="diagnosis">
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<paragraph id="2D5B36A4FFE4C322FF73FA234212A408" blockId="6.[151,1437,1374,1723]" pageId="6" pageNumber="346">
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<emphasis id="1F90EAB6FFE4C322FF73FA234608A798" bold="true" box="[199,314,1482,1507]" pageId="6" pageNumber="346">Diagnosis</emphasis>
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. It has general body structure similar to that of
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<taxonomicName id="EAE44D27FFE4C322FCE7FA254375A798" authority="Lilljeborg" authorityName="Lilljeborg" authorityYear="1901" box="[851,1095,1482,1507]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="346" phylum="Arthropoda" rank="species" species="arcticus">
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<emphasis id="1F90EAB6FFE4C322FCE7FA2544F9A798" box="[851,971,1484,1507]" italics="true" pageId="6" pageNumber="346">B. arcticus</emphasis>
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Lilljeborg
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</taxonomicName>
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: massive body with length
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<quantity id="EA1C9B41FFE4C322FACDFA2247F7A47D" metricMagnitude="-3" metricUnit="m" metricValue="3.9" pageId="6" pageNumber="346" unit="mm" value="3.9">3.9 mm</quantity>
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, comparatively short thoracic limbs of the first pair (tl I), with long apical setae on their two proximal endopodital segments, and comparatively short and basally thick caudal process. The postabdominal and caudal claws are larger than usual in this species and curved not backwards but either slightly forward or down. The caudal process is slightly bent near its middle part, bearing groups of small dorsal and ventral denticles.
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</paragraph>
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<paragraph id="2D5B36A4FFE4C322FF73F99745C2A4C0" blockId="6.[151,1437,1374,1723]" pageId="6" pageNumber="346">
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<bibRefCitation id="49754B55FFE4C322FF73F99746A4A4EC" author="Litvinchuk, L. F." box="[199,406,1662,1687]" pageId="6" pageNumber="346" refId="ref7955" refString="Litvinchuk, L. F. (2002) Systematics and distribution of water fleas of the family Cercopagidae (Crustacea, Cladocera) in the north-west of Russia. PhD Thesis, Zoological Institute, St. - Petersburg, 258 pp. [in Russian]" type="book" year="2002">Litvinchuk (2002)</bibRefCitation>
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reported two other specimens of the hybrid form from two Siberian lakes (Krasnoyarsky Region) but these records have not been documented.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |