132 lines
15 KiB
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132 lines
15 KiB
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<document id="7E6581B5C398C36E4D5BAA3FE9B4138E" ID-CLB-Dataset="27992" ID-DOI="10.11646/zootaxa.4570.1.1" ID-GBIF-Dataset="66601a1e-ba16-41b2-b182-0fd80e75ccba" ID-ISSN="1175-5326" ID-Zenodo-Dep="2608527" ID-ZooBank="EF369E98-EBD9-4647-B081-65AD1794A27C" IM.bibliography_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1553591750157" checkinUser="plazi" docAuthor="Soto, Joan J. & Peña, Álvaro L." docDate="2019" docId="03B887B7A463FFFFE983FF77FC50986D" docLanguage="en" docName="zootaxa.4570.1.1.pdf" docOrigin="Zootaxa 4570 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Eudendrium Ehrenberg 1834" docType="treatment" docVersion="8" lastPageNumber="14" masterDocId="FF81FFCFA46EFFF2E914FFEFFFBB9B7E" masterDocTitle="Benthic hydroids (Cnidaria, Hydrozoa) from the Weddell Sea (Antarctica)" masterLastPageNumber="78" masterPageNumber="1" pageNumber="14" updateTime="1698713421926" updateUser="ExternalLinkService">
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<mods:mods id="2412D0315D7DD2BD7FD4977C8929BC26" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="778D0C8D3C9A6320B609EB7772B5591D">
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<mods:title id="C6ACF64A132032E806820F273BF1EE4D">Benthic hydroids (Cnidaria, Hydrozoa) from the Weddell Sea (Antarctica)</mods:title>
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<mods:namePart id="B5FC398F8313E19420BA55491E4806EF">Soto, Joan J.</mods:namePart>
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<mods:name id="02A64F07B8BA6FC7857B53395DA88349" type="personal">
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<mods:namePart id="3BC2F7669B1A11DB895646F760C21DB8">Peña, Álvaro L.</mods:namePart>
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<mods:typeOfResource id="5F7957F542D6EFF3B24405ACA9F3F9DF">text</mods:typeOfResource>
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<mods:title id="45D33D7559B33E80ADBF901C0F497AB8">Zootaxa</mods:title>
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<mods:part id="E21B453CD20FC305D68DEAA52429E535">
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<mods:date id="DB6C88B044EA218D22FB21CB18AE23DC">2019</mods:date>
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<mods:number id="E84A5B147F54448ED78A554C9C1EF1C6">2019-03-22</mods:number>
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<mods:number id="54EB87AB2033C0C28248A19FFD6DE1DF">4570</mods:number>
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<mods:number id="44686EEE686CCEC557FDB9841F6F530E">1</mods:number>
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<mods:identifier id="7A1520DC9C791FD868C8FFC3BB8A7A9A" type="CLB-Dataset">27992</mods:identifier>
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<mods:identifier id="450C7A04F134A979A54FD572766D6AE2" type="DOI">10.11646/zootaxa.4570.1.1</mods:identifier>
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<treatment id="03B887B7A463FFFFE983FF77FC50986D" ID-DOI="http://doi.org/10.5281/zenodo.5934891" ID-GBIF-Taxon="154497125" ID-Zenodo-Dep="5934891" LSID="urn:lsid:plazi:treatment:03B887B7A463FFFFE983FF77FC50986D" httpUri="http://treatment.plazi.org/id/03B887B7A463FFFFE983FF77FC50986D" lastPageNumber="14" pageId="13" pageNumber="14">
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<subSubSection id="C30B652AA463FFFFE983FF77FED29BCC" box="[151,361,152,178]" pageId="13" pageNumber="14" type="nomenclature">
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<paragraph id="8BAE36A1A463FFFFE983FF77FED29BCC" blockId="13.[151,361,152,211]" box="[151,361,152,178]" pageId="13" pageNumber="14">
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<heading id="D0E681CDA463FFFFE983FF77FED29BCC" bold="true" box="[151,361,152,178]" fontSize="11" level="1" pageId="13" pageNumber="14" reason="1">
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<emphasis id="B965EAB3A463FFFFE983FF77FED29BCC" bold="true" box="[151,361,152,178]" pageId="13" pageNumber="14">
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<taxonomicName id="4C114D22A463FFFFE983FF77FE8B9BCC" ID-CoL="7NZD8" authorityName="Ehrenberg" authorityYear="1834" box="[151,304,152,178]" class="Hydrozoa" family="Eudendriidae" genus="Eudendrium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="13" pageNumber="14" phylum="Cnidaria" rank="genus">
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<emphasis id="B965EAB3A463FFFFE983FF77FE8B9BCC" bold="true" box="[151,304,152,178]" italics="true" pageId="13" pageNumber="14">Eudendrium</emphasis>
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</taxonomicName>
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sp.2
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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="C30B652AA463FFFFE983FF55FF489BAD" box="[151,243,186,211]" pageId="13" pageNumber="14" type="description">
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<paragraph id="8BAE36A1A463FFFFE983FF55FF489BAD" blockId="13.[151,361,152,211]" box="[151,243,186,211]" pageId="13" pageNumber="14">
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(
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<figureCitation id="132A2A24A463FFFFE98BFF55FF519BAD" box="[159,234,186,211]" captionStart="FIGURE 3" captionStartId="12.[151,250,1414,1436]" captionTargetBox="[161,1423,205,1385]" captionTargetId="figure@12.[150,1436,195,1393]" captionTargetPageId="12" captionText="FIGURE 3. a–f Hydractinia dendritica: a–b general view of the colony; c detail of spines; d gastrozooids and dactylozooid (arrow); e gonozooid with gonophores; f dactylozooid (arrow). g Eudendrium antarcticum: female gonophore. h Eudendrium generale: female gonophore. i, k Eudendrium scotti: i gonozooid with male gonophores; k colony. j Eudendrium sp.2: gonozooid with male gonophores." httpUri="https://zenodo.org/record/2608533/files/figure.png" pageId="13" pageNumber="14">Fig. 3j</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="C30B652AA463FFFFE983FEEDFB7D9A65" box="[151,1222,258,283]" pageId="13" pageNumber="14" type="materials_examined">
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<paragraph id="8BAE36A1A463FFFFE983FEEDFB7D9A65" blockId="13.[151,1436,258,787]" box="[151,1222,258,283]" pageId="13" pageNumber="14">
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<emphasis id="B965EAB3A463FFFFE983FEEDFE3B9A65" bold="true" box="[151,384,258,283]" pageId="13" pageNumber="14">Material examined.</emphasis>
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<emphasis id="B965EAB3A463FFFFE893FEECFDB89A65" box="[391,515,259,283]" italics="true" pageId="13" pageNumber="14">ANT XXI/2</emphasis>
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:
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<emphasis id="B965EAB3A463FFFFEB05FEEDFD3B9A65" bold="true" box="[529,640,258,283]" pageId="13" pageNumber="14">PS65/248</emphasis>
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, one colony, c.
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<quantity id="4CE99B44A463FFFFEA24FEECFCC49A64" box="[816,895,259,283]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" pageId="13" pageNumber="14" unit="mm" value="80.0">80 mm</quantity>
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high, with male gonophores.
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</paragraph>
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</subSubSection>
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<subSubSection id="C30B652AA463FFFFE9D3FEC9FC379921" pageId="13" pageNumber="14" type="discussion">
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<paragraph id="8BAE36A1A463FFFFE9D3FEC9FC379921" blockId="13.[151,1436,258,787]" pageId="13" pageNumber="14">
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<emphasis id="B965EAB3A463FFFFE9D3FEC9FE809A41" bold="true" box="[199,315,294,319]" pageId="13" pageNumber="14">Remarks.</emphasis>
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This species is characterized by having a strongly polysiphonic stem, up to
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<quantity id="4CE99B44A463FFFFEDDCFEC8FAA09A40" box="[1224,1307,295,319]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" pageId="13" pageNumber="14" unit="mm" value="80.0">80 mm</quantity>
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high, with smooth perisarc. Only 8–9 polyps remain in the material examined. Male gonophores are mono- or bichambered, up to nine per polyp (
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<figureCitation id="132A2A24A463FFFFE89DFE81FE6D9AF9" box="[393,470,366,391]" captionStart="FIGURE 3" captionStartId="12.[151,250,1414,1436]" captionTargetBox="[161,1423,205,1385]" captionTargetId="figure@12.[150,1436,195,1393]" captionTargetPageId="12" captionText="FIGURE 3. a–f Hydractinia dendritica: a–b general view of the colony; c detail of spines; d gastrozooids and dactylozooid (arrow); e gonozooid with gonophores; f dactylozooid (arrow). g Eudendrium antarcticum: female gonophore. h Eudendrium generale: female gonophore. i, k Eudendrium scotti: i gonozooid with male gonophores; k colony. j Eudendrium sp.2: gonozooid with male gonophores." httpUri="https://zenodo.org/record/2608533/files/figure.png" pageId="13" pageNumber="14">Fig. 3j</figureCitation>
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). The cnidome consists of microbasic euryteles of two size classes: the smaller [range 10.5–12.0 x 5.0–5.5 µm, mean 11.3±0.5 x 5.1±0.2 µm (n=15)], abundant on tentacles, and the larger [range 32.0– 35.5
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<date id="FFAF1061A463FFFFE9C6FE58FEBE9AB1" box="[210,261,438,463]" pageId="13" pageNumber="14" value="2016-10">x 16</date>
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–18.0 µm, mean 33.5±1.4 x 17.1±0.6 µm (n=16)] are scarce on the hypostome. The present material agrees, in the shape of the colony and the size of the nematocysts, with the material described as
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<taxonomicName id="4C114D22A463FFFFEDC8FE35FADD9A8D" authorityName="Ehrenberg" authorityYear="1834" box="[1244,1382,474,499]" class="Hydrozoa" family="Eudendriidae" genus="Eudendrium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="13" pageNumber="14" phylum="Cnidaria" rank="genus">
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<emphasis id="B965EAB3A463FFFFEDC8FE35FADD9A8D" box="[1244,1382,474,499]" italics="true" pageId="13" pageNumber="14">Eudendrium</emphasis>
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</taxonomicName>
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sp.1 by Peña Cantero (2009) and reported anew by
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<bibRefCitation id="EF804B50A463FFFFEB8AFE10FC2F9969" author="Pena Cantero, A. L." box="[670,916,511,535]" pageId="13" pageNumber="14" pagination="1711 - 1731" refId="ref44300" refString="Pena Cantero, A. L. (2014 a) Benthic hydroids (Cnidaria, Hydrozoa) from the continental shelf and slope off Queen Mary Coast (East Antarctica). Polar Biology, 37, 1711 - 1731. https: // doi. org / 10.1007 / s 00300 - 014 - 1556 - 0" type="journal article" year="2014">Peña Cantero (2014a)</bibRefCitation>
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. As stated by this author, the material could be conspecific with
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<taxonomicName id="4C114D22A463FFFFE876FDCDFCF49945" authority="Jaderholm, 1904" authorityName="Jaderholm" authorityYear="1904" box="[354,847,546,571]" class="Hydrozoa" family="Eudendriidae" genus="Eudendrium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="13" pageNumber="14" phylum="Cnidaria" rank="species" species="cyathiferum">
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<emphasis id="B965EAB3A463FFFFE876FDCDFDC49945" box="[354,639,546,571]" italics="true" pageId="13" pageNumber="14">Eudendrium cyathiferum</emphasis>
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<bibRefCitation id="EF804B50A463FFFFEB98FDCDFCF49945" author="Jaderholm, E." box="[652,847,546,571]" pageId="13" pageNumber="14" pagination="1 - 14" refId="ref42901" refString="Jaderholm, E. (1904) Mitteilungen ueber einige von der Schwedischen Antarctic-Expedition 1901 - 1903 eingesammelte Hydroiden. Archives de Zoologie Experimentale et Generale, Series 4, 3 (Notes et revue 1), 1 - 14." type="journal article" year="1904">Jäderholm, 1904</bibRefCitation>
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</taxonomicName>
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, but the cnidome of Jäderholm’s species remains unknown and further investigations are needed regarding this issue.
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</paragraph>
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</subSubSection>
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<subSubSection id="C30B652AA463FFFFE9D3FD85FC50986D" pageId="13" pageNumber="14" type="biology_ecology">
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<paragraph id="8BAE36A1A463FFFFE9D3FD85FC50986D" blockId="13.[151,1436,258,787]" pageId="13" pageNumber="14">
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<emphasis id="B965EAB3A463FFFFE9D3FD85FE4599FD" bold="true" box="[199,510,618,643]" pageId="13" pageNumber="14">Ecology and distribution.</emphasis>
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Material presumably belonging to this species reported at depths between 103 (Peña Cantero 2009, as
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<taxonomicName id="4C114D22A463FFFFE88BFD61FD9299D9" authorityName="Ehrenberg" authorityYear="1834" box="[415,553,654,679]" class="Hydrozoa" family="Eudendriidae" genus="Eudendrium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="13" pageNumber="14" phylum="Cnidaria" rank="genus">
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<emphasis id="B965EAB3A463FFFFE88BFD61FD9299D9" box="[415,553,654,679]" italics="true" pageId="13" pageNumber="14">Eudendrium</emphasis>
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</taxonomicName>
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sp.) and
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<quantity id="4CE99B44A463FFFFEB9BFD61FD6D99D8" box="[655,726,654,679]" metricMagnitude="2" metricUnit="m" metricValue="6.99" pageId="13" pageNumber="14" unit="m" value="699.0">699 m</quantity>
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(
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<bibRefCitation id="EF804B50A463FFFFEBF7FD60FC7399D9" author="Pena Cantero, A. L." box="[739,968,655,679]" pageId="13" pageNumber="14" pagination="1711 - 1731" refId="ref44300" refString="Pena Cantero, A. L. (2014 a) Benthic hydroids (Cnidaria, Hydrozoa) from the continental shelf and slope off Queen Mary Coast (East Antarctica). Polar Biology, 37, 1711 - 1731. https: // doi. org / 10.1007 / s 00300 - 014 - 1556 - 0" type="journal article" year="2014">Peña Cantero 2014a</bibRefCitation>
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, as
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<taxonomicName id="4C114D22A463FFFFEAE5FD61FBC799D9" authorityName="Ehrenberg" authorityYear="1834" box="[1009,1148,654,679]" class="Hydrozoa" family="Eudendriidae" genus="Eudendrium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Anthoathecata" pageId="13" pageNumber="14" phylum="Cnidaria" rank="genus">
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<emphasis id="B965EAB3A463FFFFEAE5FD61FBC799D9" box="[1009,1148,654,679]" italics="true" pageId="13" pageNumber="14">Eudendrium</emphasis>
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</taxonomicName>
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sp. 1); present material at
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<quantity id="4CE99B44A463FFFFE983FD5DFEA599B4" box="[151,286,690,715]" metricMagnitude="2" metricUnit="m" metricValue="2.8649999999999998" metricValueMax="2.87" metricValueMin="2.86" pageId="13" pageNumber="14" unit="m" value="286.5" valueMax="287.0" valueMin="286.0">
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286–
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<specimenCount id="9D17FD28A463FFFFE9DBFD5DFEA599B4" box="[207,286,690,715]" pageId="13" pageNumber="14" type="generic">287 m</specimenCount>
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</quantity>
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. Previously known from the Balleny Islands (Peña Cantero 2009) and Queen Mary Coast (
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<bibRefCitation id="EF804B50A463FFFFEC70FD5CFEFB9991" author="Pena Cantero, A. L." pageId="13" pageNumber="14" pagination="1711 - 1731" refId="ref44300" refString="Pena Cantero, A. L. (2014 a) Benthic hydroids (Cnidaria, Hydrozoa) from the continental shelf and slope off Queen Mary Coast (East Antarctica). Polar Biology, 37, 1711 - 1731. https: // doi. org / 10.1007 / s 00300 - 014 - 1556 - 0" type="journal article" year="2014">Peña Cantero 2014a</bibRefCitation>
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), in East
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<collectingCountry id="F3067631A463FFFFE8BDFD39FD9A9991" box="[425,545,726,751]" name="Antarctica" pageId="13" pageNumber="14">Antarctica</collectingCountry>
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. Present contribution constitutes the first evidence of the species from both the Weddell Sea and West
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<collectingCountry id="F3067631A463FFFFE88CFD15FDAB986D" box="[408,528,762,787]" name="Antarctica" pageId="13" pageNumber="14">Antarctica</collectingCountry>
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, pointing to circum-Antarctic distribution.
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</paragraph>
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</subSubSection>
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</treatment>
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</document>
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