238 lines
32 KiB
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238 lines
32 KiB
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<document id="2DCEAC88F7A21FE358A82AB0BAEE6874" ID-CLB-Dataset="295780" ID-DOI="10.35885/ruthenica.2023.33(1).1" ID-GBIF-Dataset="24c6cf65-b2cc-4166-be5e-66011f3de007" ID-ISSN="2307-7336" ID-Zenodo-Dep="11041167" ID-ZooBank="05853445-211D-4907-AA01-AA38BE559E70" IM.bibliography_approvedBy="tatiana" IM.illustrations_approvedBy="tatiana" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="tatiana" IM.treatments_approvedBy="tatiana" checkinTime="1713810454939" checkinUser="felipe" docAuthor="Grishina, Daria Yu., Antokhina, Tatiana I. & Ekimova, Irina A." docDate="2023" docId="03DB484BFF82FFE2FEAF5D87FEBD7237" docLanguage="en" docName="Ruthenica.33.1.1-8.pdf" docOrigin="Ruthenica, Russian Malacological Journal 33 (1)" docSource="http://dx.doi.org/10.35885/ruthenica.2023.33(1).1" docStyle="DocumentStyle:3A4A24405A53639AD762166AE048D148.1:Ruthenica.2022-.journal_article.english.index" docStyleId="3A4A24405A53639AD762166AE048D148" docStyleName="Ruthenica.2022-.journal_article.english.index" docStyleVersion="1" docTitle="Eubranchus flexus Grishina, Antokhina & Ekimova, 2023, sp. nov." docType="treatment" docVersion="7" lastPageNumber="5" masterDocId="FFE23033FF81FFE6FFB75B05FFEE7435" masterDocTitle="A new species of the genus Eubranchus (Gastropoda: Nudibranchia) from Vietnamese coastal waters" masterLastPageNumber="8" masterPageNumber="1" pageNumber="4" updateTime="1715324537198" updateUser="tatiana" zenodo-license-document="CC-BY-4.0">
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<mods:title id="6F3147DBA2A2ABEA1B6005BAEA9BAF02">A new species of the genus Eubranchus (Gastropoda: Nudibranchia) from Vietnamese coastal waters</mods:title>
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<mods:name id="A1DB7BE12C554D1B59FF9578CB5FAAA4" type="personal">
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<mods:roleTerm id="A31785AF70609A546D6AF3D59150DC96">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="60B0A5210BD9F8DD35261D71544016BF">Grishina, Daria Yu.</mods:namePart>
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<mods:affiliation id="A3AED553D449085D912BB44B5344F81A">Lomonosov Moscow State University, Leninskie Gory 1 - 12, 119234 Moscow, RUSSIAN FEDERATION; E-mail: dairiagrishina 00 @ gmail. com</mods:affiliation>
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</mods:name>
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</mods:role>
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<mods:namePart id="72974F9FBC508C8E38211804CF5DDC62">Antokhina, Tatiana I.</mods:namePart>
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<mods:affiliation id="D80CF838CB388541A65F71131B0F7A52">A. N. Severtsov Institute of Ecology and Evolution RAS, 33 Leninsky prosp., 119071 Moscow, RUSSIAN FEDERATION.</mods:affiliation>
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</mods:name>
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</mods:role>
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<mods:namePart id="A6E391DDAAD13FADF51D1E1019D35A90">Ekimova, Irina A.</mods:namePart>
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<mods:affiliation id="AB338DDDE4AAB04F28FE147803A6C23A">Lomonosov Moscow State University, Leninskie Gory 1 - 12, 119234 Moscow, RUSSIAN FEDERATION; E-mail: dairiagrishina 00 @ gmail. com</mods:affiliation>
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<mods:title id="77CD59A3C6D9ED41B020A3FB66AE04AB">Ruthenica, Russian Malacological Journal</mods:title>
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<mods:part id="E12BFA86F9562DA1535DEB2716F82509">
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<mods:date id="8ACFD825FECD9DC6C5BB6171565331AA">2023</mods:date>
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<mods:number id="8102CA5D6D21B7F04BB564BA07699023">2023-01-03</mods:number>
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<mods:number id="6B74AA50BF6E5A2BA879A1DB7B67025B">33</mods:number>
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<mods:number id="D989BFDF286DCA99418034CCEBD3D478">1</mods:number>
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<mods:url id="4FEEF1757F1AED734A7EAC738CF23F66">http://dx.doi.org/10.35885/ruthenica.2023.33(1).1</mods:url>
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<mods:classification id="13B2704453A97E289AC28581C0AB9D41">journal article</mods:classification>
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<mods:identifier id="85534EFA04C564C395629D6334086300" type="DOI">10.35885/ruthenica.2023.33(1).1</mods:identifier>
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<mods:identifier id="CADDFEEF4FF35ABB0D17A7A1E92994A5" type="GBIF-Dataset">24c6cf65-b2cc-4166-be5e-66011f3de007</mods:identifier>
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<treatment id="03DB484BFF82FFE2FEAF5D87FEBD7237" ID-DOI="http://doi.org/10.5281/zenodo.11144413" ID-GBIF-Taxon="229726643" ID-Zenodo-Dep="11144413" LSID="urn:lsid:plazi:treatment:03DB484BFF82FFE2FEAF5D87FEBD7237" httpUri="http://treatment.plazi.org/id/03DB484BFF82FFE2FEAF5D87FEBD7237" lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4">
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<subSubSection id="C368AAD6FF82FFE5FEAF5D87FD9D72AA" box="[280,627,1666,1695]" pageId="3" pageNumber="4" type="nomenclature">
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<paragraph id="8BCDF95DFF82FFE5FEAF5D87FD9D72AA" blockId="3.[280,627,1666,1727]" box="[280,627,1666,1695]" pageId="3" pageNumber="4">
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<heading id="D0854E31FF82FFE5FEAF5D87FD9D72AA" box="[280,627,1666,1695]" centered="true" fontSize="12" level="2" pageId="3" pageNumber="4" reason="6">
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<taxonomicName id="4C7282DEFF82FFE5FEAF5D87FDE672AA" ID-CoL="7NZ8F" authorityName="Forbes" authorityYear="1838" box="[280,520,1666,1695]" class="Gastropoda" family="Eubranchidae" genus="Eubranchus" kingdom="Animalia" order="Nudibranchia" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="flexus" status="sp. nov.">
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<emphasis id="B906254FFF82FFE5FEAF5D87FDE672AA" box="[280,520,1666,1695]" italics="true" pageId="3" pageNumber="4">
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Eubranchus
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<emphasis id="B906254FFF82FFE5FE0D5D87FDE672AA" bold="true" box="[442,520,1666,1695]" italics="true" pageId="3" pageNumber="4">flexus</emphasis>
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</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A2359834FF82FFE5FDA65D86FD9D72AA" box="[529,627,1667,1695]" pageId="3" pageNumber="4">sp. nov.</taxonomicNameLabel>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C368AAD6FF82FFE5FE3B5DA0FEB77305" pageId="3" pageNumber="4" type="description">
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<paragraph id="8BCDF95DFF82FFE5FE3B5DA0FDEE728A" blockId="3.[280,627,1666,1727]" box="[396,512,1701,1727]" pageId="3" pageNumber="4">
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(
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<figureCitation id="1349E5D8FF82FFE5FE245DA0FE19728A" box="[403,503,1701,1727]" captionStart-0="FIG" captionStart-1="FIG" captionStart-2="FIG" captionStartId-0="3.[166,208,1115,1136]" captionStartId-1="5.[166,208,1857,1878]" captionStartId-2="6.[174,216,890,911]" captionTargetBox-0="[168,1376,189,1084]" captionTargetId-0="figure-266@3.[168,1378,189,1084]" captionTargetId-1="figure-10@5.[166,1376,189,1814]" captionTargetId-2="figure-664@6.[174,742,170,880]" captionTargetPageId-0="3" captionTargetPageId-1="5" captionTargetPageId-2="6" captionText-0="FIG. 2. Living specimens of Eubranchus flexus sp. nov. A. Holotype ZMMU WS19111, dorsal view. B. Paratype ZMMU WS19112, dorsal view, specimens was damaged during collection. Size of the fixed specimens is around 4 mm. C. Eubranchus flexus sp. nov. specimens with egg mass and the host hydrozoan colony; white arrows point to egg masses, black arrows with a white outline point to specimens. РИС. 2. ПриЖиЗненные фотографии Eubranchus flexus sp. nov. A. Голотип ZMMU WS19111 вид с дорсальной стороны. B. Паратип ZMMU WS19112. РаЗмер Зафиксированных обраЗЦов составлЯет около 4 мм. C. Особи Eubranchus flexus sp. nov. на гидроиде; белые стрелки укаЗывают на кладки ЯиЦ, черные стрелки с белым контуром укаЗывают на особей моллюсков." captionText-1="FIG. 3. Buccal armature in Eubranchus flexus sp. nov., paratype ZMMU WS19112. A. Radula. B. Rachidian teeth. C. Paratype ZMMU WS19112, rachidian teeth, side view. D. Denticles on lateral teeth. E. Rachidian and lateral teeth. Scale bars: A – 100 µm. B, C, E – 20 µm. D – 10 µm. РИС. 3. Глоточное вооруЖение Eubranchus flexus sp. nov., паратип ZMMU WS19112. A. Радула. B. Центральный Зуб. C. Центральный Зуб, вид сбоку. D. Зубчики латеральных Зубов. E. Центральные и латеральные Зубы. Масштабные линейки:A – 100 µm. B, C, E – 20 µm. D – 10 µm." captionText-2="FIG. 4 The reproductive system of Eubranchus flexus sp. nov. (paratype ZMMU WS 19112). Scale bar: 500 µm. РИС. 4. ПоловаЯ система Eubranchus flexus sp. nov. (паратип ZMMU WS 19112). МасштабнаЯ линейка: 500 µm." figureDoi-0="http://doi.org/10.5281/zenodo.11041173" httpUri-0="https://zenodo.org/record/11041173/files/figure.png" pageId="3" pageNumber="4">Figs 2–4</figureCitation>
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)
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</paragraph>
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<paragraph id="8BCDF95DFF82FFE5FF7B5DD1FEB77305" blockId="3.[166,741,1748,1840]" pageId="3" pageNumber="4">
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ZooBank registration: urn:lsid:zoobank. o r g: a c t:
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<uuid id="FFD4C388FF82FFE5FEA85DF0FEB77305" pageId="3" pageNumber="4">
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8 F 3 D
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- E F C 3 - 4 8 C 7 - A
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- 89D41C125453
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</uuid>
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</paragraph>
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</subSubSection>
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<subSubSection id="C368AAD6FF82FFE5FF7B5C46FC2B71A0" pageId="3" pageNumber="4" type="materials_examined">
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<paragraph id="8BCDF95DFF82FFE5FF7B5C46FDA073EA" blockId="3.[166,741,1859,2048]" pageId="3" pageNumber="4">
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<emphasis id="B906254FFF82FFE5FF7B5C46FE967368" bold="true" box="[204,376,1859,1885]" pageId="3" pageNumber="4">Type material</emphasis>
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.
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<materialsCitation id="3B1AF300FF82FFE5FE3B5C46FDA073EA" ID-GBIF-Occurrence="4853598301" collectingDate="2016-10-27" collectionCode="ZMMU, T" country="Vietnam" county="Dam Bay" elevation="3" latitude="12.1948" location="Nha Trang" longLatPrecision="1" longitude="109.289764" municipality="Hon Tre Island" pageId="3" pageNumber="4" specimenCode="WS 19111, WS 19112" specimenCount="1" typeStatus="holotype">
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<typeStatus id="54C947FFFF82FFE5FE3B5C46FE1A7368" box="[396,500,1859,1885]" pageId="3" pageNumber="4" type="holotype">Holotype</typeStatus>
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<collectionCode id="ED636198FF82FFE5FDB75C41FDB9736B" box="[512,599,1860,1886]" country="Russia" httpUri="http://grbio.org/cool/k3qp-615s" name="Zoological Museum, Moscow Lomonosov State University" pageId="3" pageNumber="4" type="Museum">ZMMU</collectionCode>
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<specimenCode id="DBD45126FF82FFE5FDD45C46FD0F7368" box="[611,737,1859,1885]" collectionCode="ZMMU" country="Russia" httpUri="http://grbio.org/cool/k3qp-615s" name="Zoological Museum, Moscow Lomonosov State University" pageId="3" pageNumber="4" type="Museum">WS 19111</specimenCode>
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,
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<collectingCountry id="F365B9CDFF82FFE5FF115C66FEE67348" box="[166,264,1891,1917]" name="Vietnam" pageId="3" pageNumber="4">Vietnam</collectingCountry>
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,
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<location id="8EADAF86FF82FFE5FEAE5C66FE76734B" LSID="urn:lsid:plazi:treatment:03DB484BFF82FFE2FEAF5D87FEBD7237:8EADAF86FF82FFE5FEAE5C66FE76734B" box="[281,408,1891,1918]" country="Vietnam" county="Dam Bay" latitude="12.1948" longLatPrecision="1" longitude="109.289764" municipality="Hon Tre Island" name="Nha Trang" pageId="3" pageNumber="4">Nha Trang</location>
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,
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<collectingMunicipality id="6BA96327FF82FFE5FE1E5C61FDB07348" box="[425,606,1891,1918]" pageId="3" pageNumber="4">Hon Tre Island</collectingMunicipality>
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,
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<collectingCounty id="62AC81D1FF82FFE5FDD85C61FD0E734B" box="[623,736,1892,1918]" pageId="3" pageNumber="4">Dam Bay</collectingCounty>
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,
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<geoCoordinate id="EE469F9AFF82FFE5FF115C81FEA773AB" box="[166,329,1924,1950]" degrees="12" direction="north" minutes="11.688" orientation="latitude" pageId="3" pageNumber="4" precision="1" value="12.1948">12°11.688’N</geoCoordinate>
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.
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<geoCoordinate id="EE469F9AFF82FFE5FEEA5C81FDE573AB" box="[349,523,1924,1950]" degrees="109" direction="east" minutes="17.386" orientation="longitude" pageId="3" pageNumber="4" precision="1" value="109.289764">109°17.386’E</geoCoordinate>
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,
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<quantity id="4C8A54B8FF82FFE5FD975C81FDBB73AB" box="[544,597,1924,1950]" metricMagnitude="0" metricUnit="m" metricValue="3.0" pageId="3" pageNumber="4" unit="m" value="3.0">
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<elevation id="005F1E6EFF82FFE5FD975C81FDBB73AB" box="[544,597,1924,1950]" metricMagnitude="0" metricUnit="m" metricValue="3.0" pageId="3" pageNumber="4" unit="m" value="3.0">3 m</elevation>
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</quantity>
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in depths,
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<date id="FFCCDF9DFF82FFE5FF115CA1FECB738B" box="[166,293,1956,1982]" pageId="3" pageNumber="4" value="2016-10-27">
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<collectingDate id="EF882675FF82FFE5FF115CA1FECB738B" box="[166,293,1956,1982]" pageId="3" pageNumber="4" value="2016-10-27">27.10.2016</collectingDate>
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</date>
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, coll. –
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<collectionCode id="ED636198FF82FFE5FEC15CA0FE66738A" box="[374,392,1957,1983]" name="Tavera, Department of Geology and Geophysics" pageId="3" pageNumber="4">T</collectionCode>
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.Antokhina.
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<specimenCount id="9D7432D4FF82FFE5FDB85CA1FD4F738A" box="[527,673,1956,1983]" count="1" pageId="3" pageNumber="4" type="generic" typeStatus="paratype">One paratype</specimenCount>
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(from the type locality):
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<collectionCode id="ED636198FF82FFE5FEC45CC0FE2473EA" box="[371,458,1989,2015]" country="Russia" httpUri="http://grbio.org/cool/k3qp-615s" name="Zoological Museum, Moscow Lomonosov State University" pageId="3" pageNumber="4" type="Museum">ZMMU</collectionCode>
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<specimenCode id="DBD45126FF82FFE5FE675CC0FDA473EA" box="[464,586,1989,2015]" collectionCode="ZMMU" country="Russia" httpUri="http://grbio.org/cool/k3qp-615s" name="Zoological Museum, Moscow Lomonosov State University" pageId="3" pageNumber="4" type="Museum">WS 19112</specimenCode>
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.
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</materialsCitation>
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</paragraph>
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<paragraph id="8BCDF95DFF82FFE5FF7B5CE0FC2B71A0" blockId="3.[166,741,1859,2048]" lastBlockId="3.[801,1377,1370,2047]" pageId="3" pageNumber="4">
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<materialsCitation id="3B1AF300FF82FFE5FF7B5CE0FC2C71A0" ID-GBIF-Occurrence="4853598302" country="Vietnam" county="Dam Bay" elevation="3" latitude="12.1948" location="Nha Trang" longLatPrecision="1" longitude="109.289764" municipality="Hon Tre Island" pageId="3" pageNumber="4" specimenCount="1" typeStatus="holotype">
|
|||
|
|
<emphasis id="B906254FFF82FFE5FF7B5CE0FE9573CA" bold="true" box="[204,379,2021,2047]" pageId="3" pageNumber="4">
|
|||
|
|
<typeStatus id="54C947FFFF82FFE5FF7B5CE0FEE473CA" box="[204,266,2021,2047]" pageId="3" pageNumber="4">Type</typeStatus>
|
|||
|
|
locality
|
|||
|
|
</emphasis>
|
|||
|
|
.
|
|||
|
|
<collectingCountry id="F365B9CDFF82FFE5FE245CE0FE1373CA" box="[403,509,2021,2047]" name="Vietnam" pageId="3" pageNumber="4">Vietnam</collectingCountry>
|
|||
|
|
,
|
|||
|
|
<location id="8EADAF86FF82FFE5FDA55CE0FD707C35" LSID="urn:lsid:plazi:treatment:03DB484BFF82FFE2FEAF5D87FEBD7237:8EADAF86FF82FFE5FDA55CE0FD707C35" box="[530,670,2021,2048]" country="Vietnam" county="Dam Bay" latitude="12.1948" longLatPrecision="1" longitude="109.289764" municipality="Hon Tre Island" name="Nha Trang" pageId="3" pageNumber="4">Nha Trang</location>
|
|||
|
|
,
|
|||
|
|
<collectingMunicipality id="6BA96327FF82FFE5FD055CE3FC727141" box="[690,924,1370,2048]" pageId="3" pageNumber="4">Hon Tre Island</collectingMunicipality>
|
|||
|
|
,
|
|||
|
|
<collectingCounty id="62AC81D1FF82FFE5FC185E5EFBCC7140" box="[943,1058,1371,1397]" pageId="3" pageNumber="4">Dam Bay</collectingCounty>
|
|||
|
|
,
|
|||
|
|
<elevation id="005F1E6EFF82FFE5FB835E5FFB5B7141" box="[1076,1205,1370,1397]" metricMagnitude="0" metricUnit="m" metricValue="3.0" pageId="3" pageNumber="4" unit="m" value="3.0">
|
|||
|
|
<quantity id="4C8A54B8FF82FFE5FB835E5FFB887140" box="[1076,1126,1370,1397]" metricMagnitude="0" metricUnit="m" metricValue="3.0" pageId="3" pageNumber="4" unit="m" value="3.0">3 m</quantity>
|
|||
|
|
depth
|
|||
|
|
</elevation>
|
|||
|
|
,
|
|||
|
|
<geoCoordinate id="EE469F9AFF82FFE5FB705E5FFAB47141" box="[1223,1370,1370,1396]" degrees="12" direction="north" minutes="11.688" orientation="latitude" pageId="3" pageNumber="4" precision="1" value="12.1948">12°11.688’N</geoCoordinate>
|
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|
|
,
|
|||
|
|
<geoCoordinate id="EE469F9AFF82FFE5FC965E7EFC2C71A0" box="[801,962,1403,1429]" degrees="109" direction="east" minutes="17.386" orientation="longitude" pageId="3" pageNumber="4" precision="1" value="109.289764">109°17.386’E</geoCoordinate>
|
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|
|
</materialsCitation>
|
|||
|
|
.
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
<subSubSection id="C368AAD6FF82FFE2FCF05E9EFDD97788" lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4" type="description">
|
|||
|
|
<paragraph id="8BCDF95DFF82FFE5FCF05E9EFB7472CE" blockId="3.[801,1377,1370,2047]" pageId="3" pageNumber="4">
|
|||
|
|
<emphasis id="B906254FFF82FFE5FCF05E9EFC377180" bold="true" box="[839,985,1435,1461]" pageId="3" pageNumber="4">Description.</emphasis>
|
|||
|
|
<emphasis id="B906254FFF82FFE5FC515E9EFB347180" box="[998,1242,1435,1461]" italics="true" pageId="3" pageNumber="4">External morphology</emphasis>
|
|||
|
|
(
|
|||
|
|
<figureCitation id="1349E5D8FF82FFE5FB475E9EFCD871E3" captionStart="FIG" captionStartId="3.[166,208,1115,1136]" captionTargetBox="[168,1376,189,1084]" captionTargetId="figure-266@3.[168,1378,189,1084]" captionTargetPageId="3" captionText="FIG. 2. Living specimens of Eubranchus flexus sp. nov. A. Holotype ZMMU WS19111, dorsal view. B. Paratype ZMMU WS19112, dorsal view, specimens was damaged during collection. Size of the fixed specimens is around 4 mm. C. Eubranchus flexus sp. nov. specimens with egg mass and the host hydrozoan colony; white arrows point to egg masses, black arrows with a white outline point to specimens. РИС. 2. ПриЖиЗненные фотографии Eubranchus flexus sp. nov. A. Голотип ZMMU WS19111 вид с дорсальной стороны. B. Паратип ZMMU WS19112. РаЗмер Зафиксированных обраЗЦов составлЯет около 4 мм. C. Особи Eubranchus flexus sp. nov. на гидроиде; белые стрелки укаЗывают на кладки ЯиЦ, черные стрелки с белым контуром укаЗывают на особей моллюсков." figureDoi="http://doi.org/10.5281/zenodo.11041173" httpUri="https://zenodo.org/record/11041173/files/figure.png" pageId="3" pageNumber="4">Fig. 2 A, B</figureCitation>
|
|||
|
|
). Length
|
|||
|
|
<quantity id="4C8A54B8FF82FFE5FC145EB9FBFC71E3" box="[931,1042,1468,1494]" metricMagnitude="-2" metricUnit="m" metricValue="1.15" metricValueMax="1.7" metricValueMin="0.6" pageId="3" pageNumber="4" unit="mm" value="11.5" valueMax="17.0" valueMin="6.0">6–17 mm</quantity>
|
|||
|
|
. Body elongate, narrow. Foot narrow, significantly wider anteriorly. Head large, bearing oral tentacles and rhinophores. Rhinophores elongated, smooth. Oral tentacles elongated, smooth. Rhinophores of same length as oral tentacles. Cerata arranged in 5–6 groups with 1–3 cerata per group. Cerata located opposite to each other. Cerata smooth, winging, curved, pointed distally. Reproductive opening located laterally under first ceratal row at right. Anal opening acleioproctic.
|
|||
|
|
</paragraph>
|
|||
|
|
<paragraph id="8BCDF95DFF82FFE2FCF05C04FD03762F" blockId="3.[801,1377,1370,2047]" lastBlockId="4.[174,749,188,1538]" lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4">
|
|||
|
|
<emphasis id="B906254FFF82FFE5FCF05C04FC2E732E" box="[839,960,1793,1819]" italics="true" pageId="3" pageNumber="4">Coloration</emphasis>
|
|||
|
|
(
|
|||
|
|
<figureCitation id="1349E5D8FF82FFE5FC7A5C04FBAB7329" box="[973,1093,1793,1820]" captionStart="FIG" captionStartId="3.[166,208,1115,1136]" captionTargetBox="[168,1376,189,1084]" captionTargetId="figure-266@3.[168,1378,189,1084]" captionTargetPageId="3" captionText="FIG. 2. Living specimens of Eubranchus flexus sp. nov. A. Holotype ZMMU WS19111, dorsal view. B. Paratype ZMMU WS19112, dorsal view, specimens was damaged during collection. Size of the fixed specimens is around 4 mm. C. Eubranchus flexus sp. nov. specimens with egg mass and the host hydrozoan colony; white arrows point to egg masses, black arrows with a white outline point to specimens. РИС. 2. ПриЖиЗненные фотографии Eubranchus flexus sp. nov. A. Голотип ZMMU WS19111 вид с дорсальной стороны. B. Паратип ZMMU WS19112. РаЗмер Зафиксированных обраЗЦов составлЯет около 4 мм. C. Особи Eubranchus flexus sp. nov. на гидроиде; белые стрелки укаЗывают на кладки ЯиЦ, черные стрелки с белым контуром укаЗывают на особей моллюсков." figureDoi="http://doi.org/10.5281/zenodo.11041173" httpUri="https://zenodo.org/record/11041173/files/figure.png" pageId="3" pageNumber="4">Fig. 2A, B</figureCitation>
|
|||
|
|
). Background color translucent whitish. Rhinophores, oral tentacles, head, dorsal and dorsolateral sides of body, except areas between groups of cerata, covered with densely arranged reddish-brown small, rounded spots. Midline of body and areas with no brownish spots with small clusters of opaque white and yellowish pigment. Cerata bases transparent. Clusters of white and yellowish opaque spots of irregular shape located along distal parts of foot on each side. Cerata semitransparent, milky-white, covered with large semitransparent brownish spots of irregular shape (up to 2/3 of cerata length), and with ramdomly scattered opaque white and yellowish pigment. Cnidosac area with opaque white pigment on ceratal tip and subapical reddish-brown pigmental ring. Rhinophores and oral tentacles semitransparent, with intense opaque-white pigmental aggregations of irregular shape and yellowish apical ring and brownish ring in middle part.
|
|||
|
|
</paragraph>
|
|||
|
|
<paragraph id="8BCDF95DFF85FFE2FF63591AFDD97788" blockId="4.[174,749,188,1538]" pageId="4" pageNumber="5">
|
|||
|
|
<emphasis id="B906254FFF85FFE2FF63591AFE2C760C" box="[212,450,543,569]" italics="true" pageId="4" pageNumber="5">Internal morphology</emphasis>
|
|||
|
|
(
|
|||
|
|
<figureCitation id="1349E5D8FF85FFE2FE60591AFDCB760F" box="[471,549,543,570]" captionStart="FIG" captionStartId="5.[166,208,1857,1878]" captionTargetId="figure-10@5.[166,1376,189,1814]" captionTargetPageId="5" captionText="FIG. 3. Buccal armature in Eubranchus flexus sp. nov., paratype ZMMU WS19112. A. Radula. B. Rachidian teeth. C. Paratype ZMMU WS19112, rachidian teeth, side view. D. Denticles on lateral teeth. E. Rachidian and lateral teeth. Scale bars: A – 100 µm. B, C, E – 20 µm. D – 10 µm. РИС. 3. Глоточное вооруЖение Eubranchus flexus sp. nov., паратип ZMMU WS19112. A. Радула. B. Центральный Зуб. C. Центральный Зуб, вид сбоку. D. Зубчики латеральных Зубов. E. Центральные и латеральные Зубы. Масштабные линейки:A – 100 µm. B, C, E – 20 µm. D – 10 µm." pageId="4" pageNumber="5">Figs 3</figureCitation>
|
|||
|
|
,
|
|||
|
|
<figureCitation id="1349E5D8FF85FFE2FD8E5925FDA4760F" box="[569,586,544,570]" captionStart="FIG" captionStartId="6.[174,216,890,911]" captionTargetId="figure-664@6.[174,742,170,880]" captionTargetPageId="6" captionText="FIG. 4 The reproductive system of Eubranchus flexus sp. nov. (paratype ZMMU WS 19112). Scale bar: 500 µm. РИС. 4. ПоловаЯ система Eubranchus flexus sp. nov. (паратип ZMMU WS 19112). МасштабнаЯ линейка: 500 µm." pageId="4" pageNumber="5">4</figureCitation>
|
|||
|
|
). Paired jaws elongate, thin, delicate, masticatory border of jaw with small denticles. Radula triserial, radular formula 58 × 1.1.1. Rachidian tooth with 3 denticles on each side. Central cusp separated from lateral denticles by small gap. Lateral teeth wide, 2–3 times wider than rachidian tooth, with rectangular base and triangular cusp placed close to rachidian tooth. Lateral teeth with small triangular denticle on outer side of cusp. Reproductive system diaulic. Receptaculum seminis spheric. Vagina wide. Ampulla elongated, narrow, tubular. Vas deferens short and wide. Penial gland present, elongated, with short duct.
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
<subSubSection id="C368AAD6FF85FFE2FF6358C6FDDC77C8" pageId="4" pageNumber="5" type="distribution">
|
|||
|
|
<paragraph id="8BCDF95DFF85FFE2FF6358C6FDDC77C8" blockId="4.[174,749,188,1538]" pageId="4" pageNumber="5">
|
|||
|
|
<emphasis id="B906254FFF85FFE2FF6358C6FE8877E8" bold="true" box="[212,358,963,989]" pageId="4" pageNumber="5">Distribution</emphasis>
|
|||
|
|
. South
|
|||
|
|
<collectingCountry id="F365B9CDFF85FFE2FE7658C6FDEA77E8" box="[449,516,963,989]" name="China" pageId="4" pageNumber="5">China</collectingCountry>
|
|||
|
|
Sea. This species is known only from the
|
|||
|
|
<typeStatus id="54C947FFFF85FFE2FE1658E1FE3F77CB" box="[417,465,996,1022]" pageId="4" pageNumber="5">type</typeStatus>
|
|||
|
|
locality.
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
<subSubSection id="C368AAD6FF85FFE2FF635F01FD78704A" pageId="4" pageNumber="5" type="biology_ecology">
|
|||
|
|
<paragraph id="8BCDF95DFF85FFE2FF635F01FD78704A" blockId="4.[174,749,188,1538]" pageId="4" pageNumber="5">
|
|||
|
|
<emphasis id="B906254FFF85FFE2FF635F01FEDD702B" bold="true" box="[212,307,1028,1054]" pageId="4" pageNumber="5">Ecology</emphasis>
|
|||
|
|
. (
|
|||
|
|
<figureCitation id="1349E5D8FF85FFE2FEFB5F01FE47702B" box="[332,425,1028,1054]" captionStart="FIG" captionStartId="3.[166,208,1115,1136]" captionTargetBox="[168,1376,189,1084]" captionTargetId="figure-266@3.[168,1378,189,1084]" captionTargetPageId="3" captionText="FIG. 2. Living specimens of Eubranchus flexus sp. nov. A. Holotype ZMMU WS19111, dorsal view. B. Paratype ZMMU WS19112, dorsal view, specimens was damaged during collection. Size of the fixed specimens is around 4 mm. C. Eubranchus flexus sp. nov. specimens with egg mass and the host hydrozoan colony; white arrows point to egg masses, black arrows with a white outline point to specimens. РИС. 2. ПриЖиЗненные фотографии Eubranchus flexus sp. nov. A. Голотип ZMMU WS19111 вид с дорсальной стороны. B. Паратип ZMMU WS19112. РаЗмер Зафиксированных обраЗЦов составлЯет около 4 мм. C. Особи Eubranchus flexus sp. nov. на гидроиде; белые стрелки укаЗывают на кладки ЯиЦ, черные стрелки с белым контуром укаЗывают на особей моллюсков." figureDoi="http://doi.org/10.5281/zenodo.11041173" httpUri="https://zenodo.org/record/11041173/files/figure.png" pageId="4" pageNumber="5">Fig. 2C</figureCitation>
|
|||
|
|
). Specimens were found on hydrozoan colonies of the family
|
|||
|
|
<taxonomicName id="4C7282DEFF85FFE2FD925F21FD5A700B" authorityName="Lamouroux" authorityYear="1812" box="[549,692,1060,1086]" class="Hydrozoa" family="Sertulariidae" kingdom="Animalia" order="Leptothecata" pageId="4" pageNumber="5" phylum="Cnidaria" rank="family">Sertulariidae</taxonomicName>
|
|||
|
|
with their egg masses. The egg mass is deposited on hydrozoan as an irregular loop, beige in color.
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
<subSubSection id="C368AAD6FF85FFE2FF635F80FD6D7194" pageId="4" pageNumber="5" type="discussion">
|
|||
|
|
<paragraph id="8BCDF95DFF85FFE2FF635F80FD6D7194" blockId="4.[174,749,188,1538]" pageId="4" pageNumber="5">
|
|||
|
|
<emphasis id="B906254FFF85FFE2FF635F80FEAF70AA" bold="true" box="[212,321,1157,1183]" pageId="4" pageNumber="5">Remarks</emphasis>
|
|||
|
|
. Both morphological and molecular analyses support the distinctiveness of
|
|||
|
|
<emphasis id="B906254FFF85FFE2FDD25FA0FF1C70D5" italics="true" pageId="4" pageNumber="5">
|
|||
|
|
<taxonomicName id="4C7282DEFF85FFE2FDD25FA0FD02708A" authorityName="Forbes" authorityYear="1838" box="[613,748,1189,1215]" class="Gastropoda" family="Eubranchidae" genus="Eubranchus" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="5" phylum="Mollusca" rank="genus">Eubranchus</taxonomicName>
|
|||
|
|
<emphasis id="B906254FFF85FFE2FF195FC0FF1C70D5" bold="true" box="[174,242,1221,1248]" italics="true" pageId="4" pageNumber="5">flexus</emphasis>
|
|||
|
|
</emphasis>
|
|||
|
|
sp. nov. from other species in the genus (
|
|||
|
|
<figureCitation id="1349E5D8FF85FFE2FD085FC0FF557135" captionStart="FIG" captionStartId="2.[174,216,1267,1288]" captionTargetBox="[296,1291,204,1232]" captionTargetId="figure-195@2.[174,1384,189,1254]" captionTargetPageId="2" captionText="FIG. 1. Maximum likelihood phylogenetic tree of the genus Eubranchus based on the concatenated dataset COI+16S+H3. Numbers above branches indicate the posterior probabilities from Bayesian Inference, numbers below branches - bootstrap values from Maximum likelihood. The number of samples included in the analysis is indicated in brackets. РИС. 1. МолекулЯрно-филогенетическое дерево длЯ рода Eubranchus, построенное на основании комбинированного выравниваниЯ (COI+16S+H3) методом максимального правдоподобиЯ. ЗначениЯ над ветвЯми обоЗначают апостериорные вероЯтности. ЗначениЯ под ветвЯми обоЗначают поддерЖки бутстрепа. Число обраЗЦов, вошедших в аналиЗ, укаЗано в скобках." pageId="4" pageNumber="5">Fig. 1</figureCitation>
|
|||
|
|
). Morphologically, there is no other described species of the genus
|
|||
|
|
<taxonomicName id="4C7282DEFF85FFE2FE075E03FDD97115" authorityName="Forbes" authorityYear="1838" box="[432,567,1286,1312]" class="Gastropoda" family="Eubranchidae" genus="Eubranchus" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="5" phylum="Mollusca" rank="genus">
|
|||
|
|
<emphasis id="B906254FFF85FFE2FE075E03FDD97115" box="[432,567,1286,1312]" italics="true" pageId="4" pageNumber="5">Eubranchus</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
, demonstrating similar coloration, external appearance and radular characters (see Discussion for details).
|
|||
|
|
<emphasis id="B906254FFF85FFE2FDD25E42FF1C71B4" italics="true" pageId="4" pageNumber="5">
|
|||
|
|
<taxonomicName id="4C7282DEFF85FFE2FDD25E42FD027154" authorityName="Forbes" authorityYear="1838" box="[613,748,1351,1377]" class="Gastropoda" family="Eubranchidae" genus="Eubranchus" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="5" phylum="Mollusca" rank="genus">Eubranchus</taxonomicName>
|
|||
|
|
<emphasis id="B906254FFF85FFE2FF195E63FF1C71B4" bold="true" box="[174,242,1382,1409]" italics="true" pageId="4" pageNumber="5">flexus</emphasis>
|
|||
|
|
</emphasis>
|
|||
|
|
sp. nov. is a single representative of the genus
|
|||
|
|
<taxonomicName id="4C7282DEFF85FFE2FF195E82FEDB7194" authorityName="Forbes" authorityYear="1838" box="[174,309,1415,1441]" class="Gastropoda" family="Eubranchidae" genus="Eubranchus" kingdom="Animalia" order="Nudibranchia" pageId="4" pageNumber="5" phylum="Mollusca" rank="genus">
|
|||
|
|
<emphasis id="B906254FFF85FFE2FF195E82FEDB7194" box="[174,309,1415,1441]" italics="true" pageId="4" pageNumber="5">Eubranchus</emphasis>
|
|||
|
|
</taxonomicName>
|
|||
|
|
that described from
|
|||
|
|
<collectingCountry id="F365B9CDFF85FFE2FDAB5E82FD917194" box="[540,639,1415,1441]" name="Vietnam" pageId="4" pageNumber="5">Vietnam</collectingCountry>
|
|||
|
|
.
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
<subSubSection id="C368AAD6FF85FFE2FF635EADFEBD7237" pageId="4" pageNumber="5" type="etymology">
|
|||
|
|
<paragraph id="8BCDF95DFF85FFE2FF635EADFEBD7237" blockId="4.[174,749,188,1538]" pageId="4" pageNumber="5">
|
|||
|
|
<emphasis id="B906254FFF85FFE2FF635EADFEBA71F7" bold="true" box="[212,340,1448,1474]" pageId="4" pageNumber="5">Etymology</emphasis>
|
|||
|
|
. From Latin “
|
|||
|
|
<emphasis id="B906254FFF85FFE2FE5A5EA2FDC271F4" box="[493,556,1447,1473]" italics="true" pageId="4" pageNumber="5">flexus</emphasis>
|
|||
|
|
” (bending, winding, curvilinear), referring to specific shape of cerata in this species.
|
|||
|
|
</paragraph>
|
|||
|
|
</subSubSection>
|
|||
|
|
</treatment>
|
|||
|
|
</document>
|