271 lines
34 KiB
XML
271 lines
34 KiB
XML
<document id="382B9A656039B444569EE878250E5013" 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="A54D87B2FFE4C329FF23F8E743E2A453" 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 Leydig 1860" docType="treatment" docVersion="7" lastPageNumber="353" 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="804395404A2C551C0E9EE4F6301C86EA">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="939B6CEEC384CC4826A5620383C1B492">Korovchinsky, Nikolai M.</mods:namePart>
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<mods:typeOfResource id="DC8583141A33F6FB11AFE4123E283EB3">text</mods:typeOfResource>
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<mods:title id="72E7C336196FBB3FE45C21A77D960208">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="B2ACBC1C569AFDB33D83C5EB4A339984">
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<mods:date id="85E8E7064D91A19927936AFC5C28968A">2019</mods:date>
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<mods:number id="6C8527B7872F96B39D926DB3CCFD658A">2019-01-25</mods:number>
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<mods:number id="DABE262821E50B67D5EB554CDFB6D959">4550</mods:number>
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<mods:number id="E0615657895F24B087D4F9DFCC989B1C">3</mods:number>
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<mods:identifier id="F5D6D615A58CFAF324A5DF17AEC7A1B8" type="DOI">10.11646/zootaxa.4550.3.3</mods:identifier>
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<treatment id="A54D87B2FFE4C329FF23F8E743E2A453" ID-DOI="http://doi.org/10.5281/zenodo.5944242" ID-GBIF-Taxon="154532397" ID-Zenodo-Dep="5944242" LSID="urn:lsid:plazi:treatment:A54D87B2FFE4C329FF23F8E743E2A453" httpUri="http://treatment.plazi.org/id/A54D87B2FFE4C329FF23F8E743E2A453" lastPageId="13" lastPageNumber="353" pageId="6" pageNumber="346">
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<subSubSection id="65FE652FFFE4C322FF23F8E745ECA553" box="[151,734,1806,1832]" pageId="6" pageNumber="346" type="nomenclature">
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<paragraph id="2D5B36A4FFE4C322FF23F8E745ECA553" blockId="6.[151,734,1806,1866]" box="[151,734,1806,1832]" pageId="6" pageNumber="346">
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<heading id="761381C8FFE4C322FF23F8E745ECA553" bold="true" box="[151,734,1806,1832]" fontSize="11" level="1" pageId="6" pageNumber="346" reason="1">
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<emphasis id="1F90EAB6FFE4C322FF23F8E745ECA553" bold="true" box="[151,734,1806,1832]" pageId="6" pageNumber="346">
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Hybrid form
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<taxonomicName id="EAE44D27FFE4C322FE8AF8E746ECA553" authorityName="Leydig" authorityYear="1860" box="[318,478,1806,1832]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="346" phylum="Arthropoda" rank="genus">
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<emphasis id="1F90EAB6FFE4C322FE8AF8E746ECA553" bold="true" box="[318,478,1806,1832]" italics="true" pageId="6" pageNumber="346">Bythotrephes</emphasis>
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</taxonomicName>
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sp. x
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<taxonomicName id="EAE44D27FFE4C322FD91F8E745ECA553" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[549,734,1806,1832]" 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="1F90EAB6FFE4C322FD91F8E745ECA553" bold="true" box="[549,734,1806,1832]" italics="true" pageId="6" pageNumber="346">B. 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="65FE652FFFE4C322FF23F8D8460DA531" box="[151,319,1841,1866]" pageId="6" pageNumber="346" type="description">
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<paragraph id="2D5B36A4FFE4C322FF23F8D8460DA531" blockId="6.[151,734,1806,1866]" box="[151,319,1841,1866]" pageId="6" pageNumber="346">
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(
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<figureCitation id="B5DF2A21FFE4C322FF2BF8D847D9A531" box="[159,235,1841,1866]" captionStart="FIGURE 6" captionStartId="12.[151,250,1847,1869]" captionTargetBox="[161,1435,190,1782]" captionTargetId="figure@12.[151,1436,190,1783]" captionTargetPageId="12" captionText="FIGURE 6. Hybrid form Bythotrephes brevimanus x B. cederströmii, females (A–G). Bythotrephes sp. x B. cederströmii, females (H–M). (A–F, Lake Gusinoe; G, Lake Zaysan; H–M, Lake Borzu-Khol’). A–E, J, K, postabdominal and caudal claws. F, L, M, bend of caudal process. G, I, setae of distal end of second endopodital segment of tl I. H, the same of first endopodital segment of tl I." httpUri="https://zenodo.org/record/2625477/files/figure.png" pageId="6" pageNumber="346">Figs. 6</figureCitation>
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H–6M)
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</paragraph>
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</subSubSection>
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<subSubSection id="65FE652FFFE4C329FF23F89043ABA62F" lastPageId="13" lastPageNumber="353" pageId="6" pageNumber="346" type="materials_examined">
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<paragraph id="2D5B36A4FFE4C322FF23F890440AA5CD" blockId="6.[151,1436,1913,1974]" pageId="6" pageNumber="346">
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<emphasis id="1F90EAB6FFE4C322FF23F890447AA5E9" bold="true" box="[151,840,1913,1938]" pageId="6" pageNumber="346">
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<collectingCounty id="C43A4E28FFE4C322FF23F89047CDA5E9" box="[151,255,1913,1938]" pageId="6" pageNumber="346">Material</collectingCounty>
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examined:
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<materialsCitation id="9D8C3CF9FFE4C322FE39F890447AA5E9" ID-GBIF-Occurrence="2234214360" box="[397,840,1913,1938]" collectingDate="2004-07-27" collectorName="E. I. Zuykova" country="Russia" county="East Siberia" location="Lake Borzu-Khol'" pageId="6" pageNumber="346" specimenCount="1" stateProvince="Tyva">
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<collectingRegion id="EF20F846FFE4C322FE39F89046FAA5E9" box="[397,456,1913,1938]" country="Russia" name="Tyva" pageId="6" pageNumber="346">Tyva</collectingRegion>
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(south of
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<collectingCounty id="C43A4E28FFE4C322FDF0F89045EAA5E9" box="[580,728,1913,1938]" pageId="6" pageNumber="346">East Siberia</collectingCounty>
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,
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<collectingCountry id="55F37634FFE4C322FD52F8904409A5E9" box="[742,827,1913,1938]" name="Russia" pageId="6" pageNumber="346">Russia</collectingCountry>
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):
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</materialsCitation>
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</emphasis>
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<location id="283B607FFFE4C322FCE5F8904316A5E9" LSID="urn:lsid:plazi:treatment:A54D87B2FFE4C329FF23F8E743E2A453:283B607FFFE4C322FCE5F8904316A5E9" box="[849,1060,1913,1938]" country="Russia" county="East Siberia" name="Lake Borzu-Khol'" pageId="6" pageNumber="346" stateProvince="Tyva">Lake Borzu-Khol’</location>
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.
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<collectingDate id="491EE98CFFE4C322FB84F8934391A5E9" box="[1072,1187,1914,1938]" pageId="6" pageNumber="346" value="2004-07-27">
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<date id="595A1064FFE4C322FB84F8934391A5E9" box="[1072,1187,1914,1938]" pageId="6" pageNumber="346" value="2004-07-27">27.7.2004</date>
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</collectingDate>
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, coll.
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<collectorName id="80115372FFE4C322FB5DF89342B2A5E9" box="[1257,1408,1913,1938]" pageId="6" pageNumber="346">E.I. Zuykova</collectorName>
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,
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<materialsCitation id="9D8C3CF9FFE4C322FA3AF890440AA5CD" ID-GBIF-Occurrence="2234214369" collectingDate="2004-07-05" collectorName="E. I. Zuykova" country="Russia" county="East Siberia" location="Lake Todzha" municipality="Azas" pageId="6" pageNumber="346" specimenCount="6" stateProvince="Tyva">
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6 ad;
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<location id="283B607FFFE4C322FF73F874466AA5CD" LSID="urn:lsid:plazi:treatment:A54D87B2FFE4C329FF23F8E743E2A453:283B607FFFE4C322FF73F874466AA5CD" box="[199,344,1949,1974]" country="Russia" county="East Siberia" municipality="Azas" name="Lake Todzha" pageId="6" pageNumber="346" stateProvince="Tyva">Lake Todzha</location>
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(
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<collectingMunicipality id="CD3FACDEFFE4C322FED3F8774696A5CD" box="[359,420,1950,1974]" pageId="6" pageNumber="346">Azas</collectingMunicipality>
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),
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<collectingDate id="491EE98CFFE4C322FE0CF874452FA5CD" box="[440,541,1949,1974]" pageId="6" pageNumber="346" value="2004-07-05">
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<date id="595A1064FFE4C322FE0CF874452FA5CD" box="[440,541,1949,1974]" pageId="6" pageNumber="346" value="2004-07-05">5.7.2004</date>
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</collectingDate>
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, coll.
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<collectorName id="80115372FFE4C322FDD4F87745C7A5CD" box="[608,757,1949,1974]" pageId="6" pageNumber="346">E.I. Zuykova</collectorName>
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,
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<specimenCount id="3BE2FD2DFFE4C322FCB5F874440AA5CD" box="[769,824,1949,1974]" pageId="6" pageNumber="346" type="generic">6 ad.</specimenCount>
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</materialsCitation>
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</paragraph>
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<caption id="799B662CFFE5C323FF23F8B44671A596" httpUri="https://zenodo.org/record/2625467/files/figure.png" pageId="7" pageNumber="347" startId="7.[151,250,1885,1907]" targetBox="[232,1328,227,1808]" targetPageId="7">
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<paragraph id="2D5B36A4FFE5C323FF23F8B44671A596" blockId="7.[151,1437,1885,2029]" pageId="7" pageNumber="347">
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<emphasis id="1F90EAB6FFE5C323FF23F8B44620A508" bold="true" box="[151,274,1885,1907]" pageId="7" pageNumber="347">FIGURE 1</emphasis>
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. Hybrid form
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<taxonomicName id="EAE44D27FFE5C323FE02F8B4458EA509" authorityName="Lilljeborg" authorityYear="1901" box="[438,700,1885,1906]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="347" phylum="Arthropoda" rank="species" species="brevimanus">
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<emphasis id="1F90EAB6FFE5C323FE02F8B4458EA509" box="[438,700,1885,1906]" italics="true" pageId="7" pageNumber="347">Bythotrephes brevimanus</emphasis>
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</taxonomicName>
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x
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<taxonomicName id="EAE44D27FFE5C323FD55F8B744B1A509" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[737,899,1885,1907]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="347" phylum="Arthropoda" rank="species" species="cederstromii">
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<emphasis id="1F90EAB6FFE5C323FD55F8B744B1A509" box="[737,899,1885,1907]" italics="true" pageId="7" pageNumber="347">B. cederströmii</emphasis>
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</taxonomicName>
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, females (Rybinskoe Reservoir, Central European Russia). A, general lateral view. B, dorsal seta on proximal part of antennal basipodite. C, setae of distal end of first endopodital segment of tl I. D, E, the same of second endopodital segment of tl I. F, distal part of protopodites of tl II and tl III, outer view. G, apical setae of caudal process. H–R, caudal process and postabdominal and caudal claws. S, caudal process with highly sclerotized parts.
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</paragraph>
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</caption>
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<caption id="799B662CFFEAC32CFF23F8BA44FFA598" httpUri="https://zenodo.org/record/2625469/files/figure.png" pageId="8" pageNumber="348" startId="8.[151,250,1875,1897]" targetBox="[255,1352,238,1817]" targetPageId="8">
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<paragraph id="2D5B36A4FFEAC32CFF23F8BA44FFA598" blockId="8.[151,1437,1875,2019]" pageId="8" pageNumber="348">
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<emphasis id="1F90EAB6FFEAC32CFF23F8BA463EA512" bold="true" box="[151,268,1875,1897]" pageId="8" pageNumber="348">FIGURE 2</emphasis>
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. Hybrid form
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<taxonomicName id="EAE44D27FFEAC32CFE29F8BA45AFA513" authorityName="Lilljeborg" authorityYear="1901" box="[413,669,1875,1896]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="8" pageNumber="348" phylum="Arthropoda" rank="species" species="brevimanus">
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<emphasis id="1F90EAB6FFEAC32CFE29F8BA45AFA513" box="[413,669,1875,1896]" italics="true" pageId="8" pageNumber="348">Bythotrephes brevimanus</emphasis>
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</taxonomicName>
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x
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<taxonomicName id="EAE44D27FFEAC32CFD02F8BD4460A513" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[694,850,1875,1897]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="8" pageNumber="348" phylum="Arthropoda" rank="species" species="cederstromii">
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<emphasis id="1F90EAB6FFEAC32CFD02F8BD4460A513" box="[694,850,1875,1897]" italics="true" pageId="8" pageNumber="348">B. cederströmii</emphasis>
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</taxonomicName>
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(the River Volga reservoirs, Central European Russia: A– G—Rybinskoe Reservoir, H–L—Ivan’kovskoe Reservoir, M–R—Uglicheskoe Reservoir; S–U—Mullsjön, Sweden). Female: A–C, M, N, S, bend of caudal process (traces of bend are arrowed); I, J, setae of distal end of second endopodital segment of tl I; K, L, O–R, T, U, postabdominal and caudal claws. Male: D, proximal part of third segment of tl I; E, clasping hook and nearest area, inner view; F, clasping hook, lateral view; G, copulatory appendage.
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</paragraph>
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</caption>
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<caption id="799B662CFFEBC32DFF23F87E47EAA590" httpUri="https://zenodo.org/record/2625471/files/figure.png" pageId="9" pageNumber="349" startId="9.[151,250,1943,1965]" targetBox="[220,1347,233,1834]" targetPageId="9">
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<paragraph id="2D5B36A4FFEBC32DFF23F87E47EAA590" blockId="9.[151,1436,1943,2027]" pageId="9" pageNumber="349">
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<emphasis id="1F90EAB6FFEBC32DFF23F87E4627A5D6" bold="true" box="[151,277,1943,1965]" pageId="9" pageNumber="349">FIGURE 3</emphasis>
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. Hybrid form
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<taxonomicName id="EAE44D27FFEBC32DFE74F87145FAA5D6" authorityName="Lilljeborg" authorityYear="1901" box="[448,712,1944,1965]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="9" pageNumber="349" phylum="Arthropoda" rank="species" species="brevimanus">
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<emphasis id="1F90EAB6FFEBC32DFE74F87145FAA5D6" box="[448,712,1944,1965]" italics="true" pageId="9" pageNumber="349">Bythotrephes brevimanus</emphasis>
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</taxonomicName>
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x
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<emphasis id="1F90EAB6FFEBC32DFD47F87144ACA5D6" box="[755,926,1944,1965]" italics="true" pageId="9" pageNumber="349">
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<taxonomicName id="EAE44D27FFEBC32DFD47F87144A8A5D6" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[755,922,1944,1965]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="9" pageNumber="349" phylum="Arthropoda" rank="species" species="cederstromii">B. cederströmii</taxonomicName>
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,
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</emphasis>
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females (A–F, Gor’kovskoe Reservoir; F–J— Verhnekamskoe Reservoir; K, L—the Gulf of Finland). A, brood pouch with resting eggs. B–L, postabdominal and caudal claws.
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</paragraph>
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</caption>
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<caption id="799B662CFFE8C32EFF23F8544347A589" httpUri="https://zenodo.org/record/2625473/files/figure.png" pageId="10" pageNumber="350" startId="10.[151,250,1981,2003]" targetBox="[197,1379,240,1880]" targetPageId="10">
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<paragraph id="2D5B36A4FFE8C32EFF23F8544347A589" blockId="10.[151,1436,1981,2034]" pageId="10" pageNumber="350">
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<emphasis id="1F90EAB6FFE8C32EFF23F8544623A5A8" bold="true" box="[151,273,1981,2003]" pageId="10" pageNumber="350">FIGURE 4</emphasis>
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. Hybrid form
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<taxonomicName id="EAE44D27FFE8C32EFE07F854458AA5A9" authorityName="Lilljeborg" authorityYear="1901" box="[435,696,1981,2002]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="350" phylum="Arthropoda" rank="species" species="brevimanus">
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<emphasis id="1F90EAB6FFE8C32EFE07F854458AA5A9" box="[435,696,1981,2002]" italics="true" pageId="10" pageNumber="350">Bythotrephes brevimanus</emphasis>
|
||
</taxonomicName>
|
||
x
|
||
<emphasis id="1F90EAB6FFE8C32EFD68F85744B1A5A9" box="[732,899,1981,2003]" italics="true" pageId="10" pageNumber="350">
|
||
<taxonomicName id="EAE44D27FFE8C32EFD68F857444DA5A9" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[732,895,1981,2003]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="350" phylum="Arthropoda" rank="species" species="cederstromii">B. cederströmii</taxonomicName>
|
||
,
|
||
</emphasis>
|
||
females (A–G, Iriklinskoe Reservoir; H–O—Lake Saimaa, Finland). A–F, H, L–O, postabdominal and caudal claws. G, I–K, bend of caudal process.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="799B662CFFE9C32FFF23F87846D6A59F" httpUri="https://zenodo.org/record/2625475/files/figure.png" pageId="11" pageNumber="351" startId="11.[151,250,1937,1959]" targetBox="[177,1417,223,1819]" targetPageId="11">
|
||
<paragraph id="2D5B36A4FFE9C32FFF23F87846D6A59F" blockId="11.[151,1436,1937,2020]" pageId="11" pageNumber="351">
|
||
<emphasis id="1F90EAB6FFE9C32FFF23F878463EA5DC" bold="true" box="[151,268,1937,1959]" pageId="11" pageNumber="351">FIGURE 5</emphasis>
|
||
. Hybrid form
|
||
<taxonomicName id="EAE44D27FFE9C32FFE28F87845A9A5DD" authorityName="Lilljeborg" authorityYear="1901" box="[412,667,1937,1958]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="351" phylum="Arthropoda" rank="species" species="brevimanus">
|
||
<emphasis id="1F90EAB6FFE9C32FFE28F87845A9A5DD" box="[412,667,1937,1958]" italics="true" pageId="11" pageNumber="351">Bythotrephes brevimanus</emphasis>
|
||
</taxonomicName>
|
||
x
|
||
<emphasis id="1F90EAB6FFE9C32FFD00F87B4464A5DD" box="[692,854,1937,1959]" italics="true" pageId="11" pageNumber="351">
|
||
<taxonomicName id="EAE44D27FFE9C32FFD00F87B4460A5DD" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[692,850,1937,1959]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="351" phylum="Arthropoda" rank="species" species="cederstromii">B. cederströmii</taxonomicName>
|
||
,
|
||
</emphasis>
|
||
females (A, B, Lake Onega; C, D, the River Shosha; E, F, Lake Kumichevo; G–L, Lake Chany). A–C, E–L, postabdominal and caudal claws. D, traces of bend of caudal process (enlarged denticles are arrowed).
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="799B662CFFEEC328FF23F8DE4602A5D1" httpUri="https://zenodo.org/record/2625477/files/figure.png" pageId="12" pageNumber="352" startId="12.[151,250,1847,1869]" targetBox="[161,1435,190,1782]" targetPageId="12">
|
||
<paragraph id="2D5B36A4FFEEC328FF23F8DE4602A5D1" blockId="12.[151,1436,1847,1962]" pageId="12" pageNumber="352">
|
||
<emphasis id="1F90EAB6FFEEC328FF23F8DE4622A536" bold="true" box="[151,272,1847,1869]" pageId="12" pageNumber="352">FIGURE 6</emphasis>
|
||
. Hybrid form
|
||
<taxonomicName id="EAE44D27FFEEC328FE18F8D14582A536" authorityName="Lilljeborg" authorityYear="1901" box="[428,688,1848,1869]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="352" phylum="Arthropoda" rank="species" species="brevimanus">
|
||
<emphasis id="1F90EAB6FFEEC328FE18F8D14582A536" box="[428,688,1848,1869]" italics="true" pageId="12" pageNumber="352">Bythotrephes brevimanus</emphasis>
|
||
</taxonomicName>
|
||
x
|
||
<emphasis id="1F90EAB6FFEEC328FD64F8D14444A536" box="[720,886,1848,1869]" italics="true" pageId="12" pageNumber="352">
|
||
<taxonomicName id="EAE44D27FFEEC328FD64F8D14441A536" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[720,883,1848,1869]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="352" phylum="Arthropoda" rank="species" species="cederstromii">B. cederströmii</taxonomicName>
|
||
,
|
||
</emphasis>
|
||
females (A–G).
|
||
<taxonomicName id="EAE44D27FFEEC328FB9FF8D1439DA536" authorityName="Leydig" authorityYear="1860" box="[1067,1199,1848,1869]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="352" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="1F90EAB6FFEEC328FB9FF8D1439DA536" box="[1067,1199,1848,1869]" italics="true" pageId="12" pageNumber="352">Bythotrephes</emphasis>
|
||
</taxonomicName>
|
||
sp. x
|
||
<emphasis id="1F90EAB6FFEEC328FB42F8D142AEA536" box="[1270,1436,1848,1869]" italics="true" pageId="12" pageNumber="352">
|
||
<taxonomicName id="EAE44D27FFEEC328FB42F8D142AAA536" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[1270,1432,1848,1869]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="352" phylum="Arthropoda" rank="species" species="cederstromii">B. cederströmii</taxonomicName>
|
||
,
|
||
</emphasis>
|
||
females (H–M). (A–F, Lake Gusinoe; G, Lake Zaysan; H–M, Lake Borzu-Khol’). A–E, J, K, postabdominal and caudal claws. F, L, M, bend of caudal process. G, I, setae of distal end of second endopodital segment of tl I. H, the same of first endopodital segment of tl I.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="799B662CFFEFC329FF23FCC242AFA11B" httpUri="https://zenodo.org/record/2625479/files/figure.png" pageId="13" pageNumber="353" startId="13.[151,250,811,833]" targetBox="[150,1436,245,740]" targetPageId="13">
|
||
<paragraph id="2D5B36A4FFEFC329FF23FCC242AFA11B" blockId="13.[151,1437,811,864]" pageId="13" pageNumber="353">
|
||
<emphasis id="1F90EAB6FFEFC329FF23FCC2463EA13A" bold="true" box="[151,268,811,833]" pageId="13" pageNumber="353">FIGURE 7</emphasis>
|
||
. Geographical distribution of
|
||
<taxonomicName id="EAE44D27FFEFC329FD89FCC245F0A13B" authorityName="Leydig" authorityYear="1860" box="[573,706,811,832]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="353" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="1F90EAB6FFEFC329FD89FCC245F0A13B" box="[573,706,811,832]" italics="true" pageId="13" pageNumber="353">Bythotrephes</emphasis>
|
||
</taxonomicName>
|
||
hybrid forms.
|
||
<taxonomicName id="EAE44D27FFEFC329FCECFCC24365A13B" authorityName="Lilljeborg" authorityYear="1901" box="[856,1111,811,832]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="353" phylum="Arthropoda" rank="species" species="brevimanus">
|
||
<emphasis id="1F90EAB6FFEFC329FCECFCC24365A13B" box="[856,1111,811,832]" italics="true" pageId="13" pageNumber="353">Bythotrephes brevimanus</emphasis>
|
||
</taxonomicName>
|
||
x
|
||
<taxonomicName id="EAE44D27FFEFC329FBC5FCC5423EA13B" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[1137,1292,811,833]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="353" phylum="Arthropoda" rank="species" species="cederstromii">
|
||
<emphasis id="1F90EAB6FFEFC329FBC5FCC5423EA13B" box="[1137,1292,811,833]" italics="true" pageId="13" pageNumber="353">B. cederströmii</emphasis>
|
||
</taxonomicName>
|
||
(rhombuses – literature data, black circles – original data).
|
||
<taxonomicName id="EAE44D27FFEFC329FDEFFCA245FAA11B" authorityName="Lilljeborg" authorityYear="1901" box="[603,712,843,864]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="353" phylum="Arthropoda" rank="species" species="arcticus">
|
||
<emphasis id="1F90EAB6FFEFC329FDEFFCA245FAA11B" box="[603,712,843,864]" italics="true" pageId="13" pageNumber="353">B. arcticus</emphasis>
|
||
</taxonomicName>
|
||
x
|
||
<taxonomicName id="EAE44D27FFEFC329FD55FCA2444FA124" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[737,893,842,864]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="353" phylum="Arthropoda" rank="species" species="cederstromii">
|
||
<emphasis id="1F90EAB6FFEFC329FD55FCA2444FA124" box="[737,893,842,864]" italics="true" pageId="13" pageNumber="353">B. cederströmii</emphasis>
|
||
</taxonomicName>
|
||
(asterisk).
|
||
<taxonomicName id="EAE44D27FFEFC329FC5AFCA34341A124" authorityName="Leydig" authorityYear="1860" box="[1006,1139,842,863]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="353" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="1F90EAB6FFEFC329FC5AFCA34341A124" box="[1006,1139,842,863]" italics="true" pageId="13" pageNumber="353">Bythotrephes</emphasis>
|
||
</taxonomicName>
|
||
sp. x
|
||
<taxonomicName id="EAE44D27FFEFC329FB1AFCA24279A124" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[1198,1355,842,864]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="353" phylum="Arthropoda" rank="species" species="cederstromii">
|
||
<emphasis id="1F90EAB6FFEFC329FB1AFCA24279A124" box="[1198,1355,842,864]" italics="true" pageId="13" pageNumber="353">B. cederströmii</emphasis>
|
||
</taxonomicName>
|
||
(cross).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="2D5B36A4FFEFC329FF73FC4543ABA62F" blockId="13.[151,1437,939,1576]" pageId="13" pageNumber="353">
|
||
In the mountainous area in the south of East Siberia, there have been found representatives of the genus
|
||
<taxonomicName id="EAE44D27FFEFC329FF23FC264618A193" authorityName="Leydig" authorityYear="1860" box="[151,298,975,1000]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="353" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="1F90EAB6FFEFC329FF23FC264618A193" box="[151,298,975,1000]" italics="true" pageId="13" pageNumber="353">Bythotrephes</emphasis>
|
||
</taxonomicName>
|
||
which seem to represent a new species of the genus to be described (Korovchinsky, unpublished). In the same area but in the neighboring lakes Borzu-Khol’ and Todzha, there have been encountered similar specimens bearing a caudal process with a denticulated bend resembling that of
|
||
<emphasis id="1F90EAB6FFEFC329FBA8FBF143E2A64B" box="[1052,1232,1047,1072]" italics="true" pageId="13" pageNumber="353">
|
||
<taxonomicName id="EAE44D27FFEFC329FBA8FBF143FEA64B" baseAuthorityName="Korovchinsky" baseAuthorityYear="2018" box="[1052,1228,1047,1072]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="353" phylum="Arthropoda" rank="species" species="cederstromii">B. cederströmii</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
For this reason, it has been suggested that these specimens may represent a new form of interspecific hybrids.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="65FE652FFFEFC329FF73FBB643E2A453" pageId="13" pageNumber="353" type="diagnosis">
|
||
<paragraph id="2D5B36A4FFEFC329FF73FBB643E2A453" blockId="13.[151,1437,939,1576]" pageId="13" pageNumber="353">
|
||
<emphasis id="1F90EAB6FFEFC329FF73FBB64673A603" bold="true" box="[199,321,1119,1144]" pageId="13" pageNumber="353">Diagnosis.</emphasis>
|
||
General body appearance and structure as in parental
|
||
<taxonomicName id="EAE44D27FFEFC329FC1AFBB64373A603" authorityName="Leydig" authorityYear="1860" box="[942,1089,1119,1144]" class="Branchiopoda" family="Cercopagididae" genus="Bythotrephes" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="353" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="1F90EAB6FFEFC329FC1AFBB64373A603" box="[942,1089,1119,1144]" italics="true" pageId="13" pageNumber="353">Bythotrephes</emphasis>
|
||
</taxonomicName>
|
||
species with length
|
||
<quantity id="EA1C9B41FFEFC329FA98FBB647F4A6E0" metricMagnitude="-3" metricUnit="m" metricValue="2.17" metricValueMax="2.48" metricValueMin="1.86" pageId="13" pageNumber="353" unit="mm" value="2.17" valueMax="2.48" valueMin="1.86">1.86–2.48 mm</quantity>
|
||
. The same is true for the body appendages, antennules, swimming antennae, mouth parts, and carapace. Thoracic limbs of first pair (tl I) long (73.5–90.5 % of body length), with long and thin endopodital segments (distal / proximal segment = 80.0–89.0 %) bearing comparatively short apical setae of second segment (
|
||
<figureCitation id="B5DF2A21FFEFC329FA95FB22425CA69F" box="[1313,1390,1227,1252]" captionStart="FIGURE 6" captionStartId="12.[151,250,1847,1869]" captionTargetBox="[161,1435,190,1782]" captionTargetId="figure@12.[151,1436,190,1783]" captionTargetPageId="12" captionText="FIGURE 6. Hybrid form Bythotrephes brevimanus x B. cederströmii, females (A–G). Bythotrephes sp. x B. cederströmii, females (H–M). (A–F, Lake Gusinoe; G, Lake Zaysan; H–M, Lake Borzu-Khol’). A–E, J, K, postabdominal and caudal claws. F, L, M, bend of caudal process. G, I, setae of distal end of second endopodital segment of tl I. H, the same of first endopodital segment of tl I." httpUri="https://zenodo.org/record/2625477/files/figure.png" pageId="13" pageNumber="353">
|
||
Fig.
|
||
<date id="595A1064FFEFC329FAE1FB22425CA69F" box="[1365,1390,1227,1252]" pageId="13" pageNumber="353">6I</date>
|
||
</figureCitation>
|
||
) (in one individual, these setae are of almost equal length). Postabdominal claws comparatively short (5.3–8.5 %) directed down and either slightly forward or backwards (
|
||
<figureCitation id="B5DF2A21FFEFC329FCA8FAFA4498A757" box="[796,938,1299,1324]" captionStart="FIGURE 6" captionStartId="12.[151,250,1847,1869]" captionTargetBox="[161,1435,190,1782]" captionTargetId="figure@12.[151,1436,190,1783]" captionTargetPageId="12" captionText="FIGURE 6. Hybrid form Bythotrephes brevimanus x B. cederströmii, females (A–G). Bythotrephes sp. x B. cederströmii, females (H–M). (A–F, Lake Gusinoe; G, Lake Zaysan; H–M, Lake Borzu-Khol’). A–E, J, K, postabdominal and caudal claws. F, L, M, bend of caudal process. G, I, setae of distal end of second endopodital segment of tl I. H, the same of first endopodital segment of tl I." httpUri="https://zenodo.org/record/2625477/files/figure.png" pageId="13" pageNumber="353">Figs. 6J, 6K</figureCitation>
|
||
). Caudal process not long (205–240 %) and either straight or more often (in lake Borzu-Khol’) with more or less developed denticulated bend (
|
||
<figureCitation id="B5DF2A21FFEFC329FB49FADE42A6A72B" box="[1277,1428,1335,1360]" captionStart="FIGURE 6" captionStartId="12.[151,250,1847,1869]" captionTargetBox="[161,1435,190,1782]" captionTargetId="figure@12.[151,1436,190,1783]" captionTargetPageId="12" captionText="FIGURE 6. Hybrid form Bythotrephes brevimanus x B. cederströmii, females (A–G). Bythotrephes sp. x B. cederströmii, females (H–M). (A–F, Lake Gusinoe; G, Lake Zaysan; H–M, Lake Borzu-Khol’). A–E, J, K, postabdominal and caudal claws. F, L, M, bend of caudal process. G, I, setae of distal end of second endopodital segment of tl I. H, the same of first endopodital segment of tl I." httpUri="https://zenodo.org/record/2625477/files/figure.png" pageId="13" pageNumber="353">Figs. 6L, 6M</figureCitation>
|
||
) situated in the middle of the process or closer to trunk (in Lake Todzha, only one individual had such a bend). Basally, the caudal process bears one pair of claws similar to those of postabdomen (5.6–8.9 % of body length) (
|
||
<figureCitation id="B5DF2A21FFEFC329FF2BFA4A460AA7C7" box="[159,312,1443,1468]" captionStart="FIGURE 6" captionStartId="12.[151,250,1847,1869]" captionTargetBox="[161,1435,190,1782]" captionTargetId="figure@12.[151,1436,190,1783]" captionTargetPageId="12" captionText="FIGURE 6. Hybrid form Bythotrephes brevimanus x B. cederströmii, females (A–G). Bythotrephes sp. x B. cederströmii, females (H–M). (A–F, Lake Gusinoe; G, Lake Zaysan; H–M, Lake Borzu-Khol’). A–E, J, K, postabdominal and caudal claws. F, L, M, bend of caudal process. G, I, setae of distal end of second endopodital segment of tl I. H, the same of first endopodital segment of tl I." httpUri="https://zenodo.org/record/2625477/files/figure.png" pageId="13" pageNumber="353">Figs. 6L, 6M</figureCitation>
|
||
) and apically, a minute postabdominal setae. Pairs of claws sit rather close to each other (distance between postabdominal claws and claws of caudal process (interclaw distance) constitutes 11.6–16.2 % of body length). Between them, the thickness of the caudal process constitutes 3.5–4.3 % of body length. Borders separating old molted integuments of caudal process with claws normally are quite conspicuous.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |