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<document id="C5B781617F585EECF7051C6BBE2E7055" 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. &amp; Peña, Álvaro L." docDate="2019" docId="03B887B7A44BFFD4E983F951FC809A63" 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="Halecium antarcticum Vanhoffen 1910" docType="treatment" docVersion="8" lastPageNumber="39" masterDocId="FF81FFCFA46EFFF2E914FFEFFFBB9B7E" masterDocTitle="Benthic hydroids (Cnidaria, Hydrozoa) from the Weddell Sea (Antarctica)" masterLastPageNumber="78" masterPageNumber="1" pageNumber="38" updateTime="1698713421926" updateUser="ExternalLinkService">
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<mods:title id="EBEDFB7CDCF079161F99633A1A70E190">Benthic hydroids (Cnidaria, Hydrozoa) from the Weddell Sea (Antarctica)</mods:title>
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<mods:namePart id="5BCA7BA62CBCF0F1B94D64BB41415C8C">Soto, Joan J.</mods:namePart>
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<treatment id="03B887B7A44BFFD4E983F951FC809A63" ID-DOI="http://doi.org/10.5281/zenodo.5934985" ID-GBIF-Taxon="154497198" ID-Zenodo-Dep="5934985" LSID="urn:lsid:plazi:treatment:03B887B7A44BFFD4E983F951FC809A63" httpUri="http://treatment.plazi.org/id/03B887B7A44BFFD4E983F951FC809A63" lastPageId="38" lastPageNumber="39" pageId="37" pageNumber="38">
<subSubSection id="C30B652AA44BFFD7E983F951FD249DA6" box="[151,671,1726,1752]" pageId="37" pageNumber="38" type="nomenclature">
<paragraph id="8BAE36A1A44BFFD7E983F951FD249DA6" blockId="37.[151,671,1726,1786]" box="[151,671,1726,1752]" pageId="37" pageNumber="38">
<heading id="D0E681CDA44BFFD7E983F951FD249DA6" bold="true" box="[151,671,1726,1752]" fontSize="11" level="1" pageId="37" pageNumber="38" reason="1">
<taxonomicName id="4C114D22A44BFFD7E983F951FD249DA6" ID-CoL="3JB2X" authority="Vanhoffen, 1910" authorityName="Vanhoffen" authorityYear="1910" box="[151,671,1726,1752]" class="Hydrozoa" family="Haleciidae" genus="Halecium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="37" pageNumber="38" phylum="Cnidaria" rank="species" species="antarcticum">
<emphasis id="B965EAB3A44BFFD7E983F951FD249DA6" bold="true" box="[151,671,1726,1752]" pageId="37" pageNumber="38">
<emphasis id="B965EAB3A44BFFD7E983F951FEB59DA6" bold="true" box="[151,270,1726,1752]" italics="true" pageId="37" pageNumber="38">Halecium</emphasis>
cf.
<emphasis id="B965EAB3A44BFFD7E82EF951FE769DA6" bold="true" box="[314,461,1726,1752]" italics="true" pageId="37" pageNumber="38">antarcticum</emphasis>
<bibRefCitation id="EF804B50A44BFFD7E8C0F951FD249DA6" author="Vanhoffen, E." box="[468,671,1726,1752]" pageId="37" pageNumber="38" pagination="269 - 340" refId="ref47562" refString="Vanhoffen, E. (1910) Die Hydroiden der Deutschen Sudpolar-Expedition 1901 - 1903. Deutsche Sudpolar-Expedition 1901 - 1903, 11, 269 - 340." type="journal article" year="1910">Vanhöffen, 1910</bibRefCitation>
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C30B652AA44BFFD7E983F90EFEBD9D84" box="[151,262,1761,1786]" pageId="37" pageNumber="38" type="description">
<paragraph id="8BAE36A1A44BFFD7E983F90EFEBD9D84" blockId="37.[151,671,1726,1786]" box="[151,262,1761,1786]" pageId="37" pageNumber="38">
(
<figureCitation id="132A2A24A44BFFD7E98BF90EFF469D84" box="[159,253,1761,1786]" captionStart="FIGURE 13" captionStartId="38.[151,250,1636,1658]" captionTargetBox="[155,1430,344,1609]" captionTargetId="figure@38.[150,1436,339,1615]" captionTargetPageId="38" captionText="FIGURE 13. a Halecium cf. antarcticum: hydrophore and hydrotheca. bd H. banzare: b hydrophore and hydrotheca; c male gonotheca; d colony. e H. exaggeratum: hydrophore and hydrotheca. fg H. incertus: f hydrophore and hydrotheca; g gonotheca. h H. interpolatum: hydrophore and hydrotheca. i H. jaederholmi: hydrophore and hydrotheca. jk H. pseudodelicatulum: j hydrophore and hydrotheca; k female gonotheca. l H. pseudoincertus: hydrophore and hydrotheca." httpUri="https://zenodo.org/record/2608553/files/figure.png" pageId="37" pageNumber="38">Fig. 13a</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C30B652AA44BFFD7E983F8C6FC9D9C18" pageId="37" pageNumber="38" type="materials_examined">
<paragraph id="8BAE36A1A44BFFD7E983F8C6FC9D9C18" blockId="37.[151,1436,1833,2038]" pageId="37" pageNumber="38">
<emphasis id="B965EAB3A44BFFD7E983F8C6FE3B9C3C" bold="true" box="[151,384,1833,1858]" pageId="37" pageNumber="38">Material examined.</emphasis>
<emphasis id="B965EAB3A44BFFD7E892F8C5FE439C3C" box="[390,504,1834,1858]" italics="true" pageId="37" pageNumber="38">ANT XV/3</emphasis>
:
<emphasis id="B965EAB3A44BFFD7EB12F8C6FDEE9C3C" bold="true" box="[518,597,1833,1858]" pageId="37" pageNumber="38">48-150</emphasis>
, three stems, c. 70, 75 and
<quantity id="4CE99B44A44BFFD7EA97F8C5FC659C3F" box="[899,990,1834,1858]" metricMagnitude="-1" metricUnit="m" metricValue="1.1" pageId="37" pageNumber="38" unit="mm" value="110.0">110 mm</quantity>
high;
<emphasis id="B965EAB3A44BFFD7ED30F8C6FBCF9C3C" bold="true" box="[1060,1140,1833,1858]" pageId="37" pageNumber="38">48-237</emphasis>
, some stems, up to
<quantity id="4CE99B44A44BFFD7EC5AF8C6FA279C3F" box="[1358,1436,1833,1858]" metricMagnitude="-2" metricUnit="m" metricValue="2.5" pageId="37" pageNumber="38" unit="mm" value="25.0">25 mm</quantity>
high, on
<taxonomicName id="4C114D22A44BFFD7E9EEF8A1FEE19C1B" authorityName="Pena Cantero, Svoboda &amp; Vervoort" authorityYear="1996" box="[250,346,1870,1893]" class="Hydrozoa" family="Halopterididae" genus="Schizotricha" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="37" pageNumber="38" phylum="Cnidaria" rank="species" species="nana">
<emphasis id="B965EAB3A44BFFD7E9EEF8A1FEE19C1B" box="[250,346,1870,1893]" italics="true" pageId="37" pageNumber="38">Sc. nana</emphasis>
</taxonomicName>
;
<emphasis id="B965EAB3A44BFFD7E87DF8A2FE039C18" bold="true" box="[361,440,1869,1894]" pageId="37" pageNumber="38">48-276</emphasis>
, two stems, 40 and
<quantity id="4CE99B44A44BFFD7EB83F8A2FD5D9C1B" box="[663,742,1869,1894]" metricMagnitude="-2" metricUnit="m" metricValue="6.0" pageId="37" pageNumber="38" unit="mm" value="60.0">60 mm</quantity>
high.
</paragraph>
</subSubSection>
<subSubSection id="C30B652AA44BFFD7E9D3F89EFD5B9C88" pageId="37" pageNumber="38" type="discussion">
<paragraph id="8BAE36A1A44BFFD7E9D3F89EFD5B9C88" blockId="37.[151,1436,1833,2038]" pageId="37" pageNumber="38">
<emphasis id="B965EAB3A44BFFD7E9D3F89EFE809CF4" bold="true" box="[199,315,1905,1930]" pageId="37" pageNumber="38">Remarks.</emphasis>
The great resemblance between
<taxonomicName id="4C114D22A44BFFD7EBDDF89EFC729CF7" authorityName="Vanhoffen" authorityYear="1910" box="[713,969,1905,1930]" class="Hydrozoa" family="Haleciidae" genus="Halecium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="37" pageNumber="38" phylum="Cnidaria" rank="species" species="antarcticum">
<emphasis id="B965EAB3A44BFFD7EBDDF89EFC729CF7" box="[713,969,1905,1930]" italics="true" pageId="37" pageNumber="38">Halecium antarcticum</emphasis>
</taxonomicName>
and
<taxonomicName id="4C114D22A44BFFD7ED18F89DFAB29CF4" authorityName="Pena Cantero" authorityYear="2014" box="[1036,1289,1905,1930]" class="Hydrozoa" family="Haleciidae" genus="Halecium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="37" pageNumber="38" phylum="Cnidaria" rank="species" species="pseudodelicatulum">
<emphasis id="B965EAB3A44BFFD7ED18F89DFAB29CF4" box="[1036,1289,1905,1930]" italics="true" pageId="37" pageNumber="38">H. pseudodelicatulum</emphasis>
</taxonomicName>
makes both species almost indistinguishable in the absence of gonothecae (see
<bibRefCitation id="EF804B50A44BFFD7EA82F879FB3A9CD0" author="Pena Cantero, A. L." box="[918,1153,1941,1966]" pageId="37" pageNumber="38" pagination="243 - 280" refId="ref44359" refString="Pena Cantero, A. L. (2014 b) Revision of the Antarctic species of Halecium Oken, 1815 (Cnidaria, Hydrozoa, Haleciidae). Zootaxa, 3790 (2), 243 - 280. https: // doi. org / 10.11646 / zootaxa. 3790.2.2" type="journal article" year="2014">Peña Cantero 2014b</bibRefCitation>
). The material examined here has been tentatively assigned to
<taxonomicName id="4C114D22A44BFFD7EB5CF855FD499CAF" authorityName="Vanhoffen" authorityYear="1910" box="[584,754,1978,2001]" class="Hydrozoa" family="Haleciidae" genus="Halecium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="37" pageNumber="38" phylum="Cnidaria" rank="species" species="antarcticum">
<emphasis id="B965EAB3A44BFFD7EB5CF855FD499CAF" box="[584,754,1978,2001]" italics="true" pageId="37" pageNumber="38">H. antarcticum</emphasis>
</taxonomicName>
based on the disposition of the hydrophore, pointing more outwards than in
<taxonomicName id="4C114D22A44BFFD7E84CF831FDF49C88" authorityName="Pena Cantero" authorityYear="2014" box="[344,591,2013,2038]" class="Hydrozoa" family="Haleciidae" genus="Halecium" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="37" pageNumber="38" phylum="Cnidaria" rank="species" species="pseudodelicatulum">
<emphasis id="B965EAB3A44BFFD7E84CF831FDF49C88" box="[344,591,2013,2038]" italics="true" pageId="37" pageNumber="38">H. pseudodelicatulum</emphasis>
</taxonomicName>
(
<figureCitation id="132A2A24A44BFFD7EB49F832FD699C88" box="[605,722,2013,2038]" captionStart="FIGURE 13" captionStartId="38.[151,250,1636,1658]" captionTargetBox="[155,1430,344,1609]" captionTargetId="figure@38.[150,1436,339,1615]" captionTargetPageId="38" captionText="FIGURE 13. a Halecium cf. antarcticum: hydrophore and hydrotheca. bd H. banzare: b hydrophore and hydrotheca; c male gonotheca; d colony. e H. exaggeratum: hydrophore and hydrotheca. fg H. incertus: f hydrophore and hydrotheca; g gonotheca. h H. interpolatum: hydrophore and hydrotheca. i H. jaederholmi: hydrophore and hydrotheca. jk H. pseudodelicatulum: j hydrophore and hydrotheca; k female gonotheca. l H. pseudoincertus: hydrophore and hydrotheca." httpUri="https://zenodo.org/record/2608553/files/figure.png" pageId="37" pageNumber="38">Fig. 13a, j</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C30B652AA448FFD4E9D3FF78FC809A63" pageId="38" pageNumber="39" type="biology_ecology">
<paragraph id="8BAE36A1A448FFD4E9D3FF78FC809A63" blockId="38.[151,1437,151,285]" pageId="38" pageNumber="39">
<emphasis id="B965EAB3A448FFD4E9D3FF78FE4C9BCE" bold="true" box="[199,503,151,176]" pageId="38" pageNumber="39">Ecology and distribution.</emphasis>
Species reported from 45 (
<bibRefCitation id="EF804B50A448FFD4EA3CFF77FC049BCE" author="Watson, J. E." box="[808,959,152,176]" pageId="38" pageNumber="39" pagination="165 - 178" refId="ref47732" refString="Watson, J. E. (2008) Hydroids of the BANZARE expeditions, 1929 - 1931: the family Haleciidae (Hydrozoa, Leptothecata) from the Australian Antarctic Territory. Memoirs of the Museum of Fictoria, 65, 165 - 178. https: // doi. org / 10.24199 / j. mmv. 2008.65.9" type="journal article" year="2008">Watson 2008</bibRefCitation>
) to
<quantity id="4CE99B44A448FFD4EAFFFF78FBFB9BD1" box="[1003,1088,151,176]" metricMagnitude="3" metricUnit="m" metricValue="1.157" pageId="38" pageNumber="39" unit="m" value="1157.0">1157 m</quantity>
(
<bibRefCitation id="EF804B50A448FFD4ED5AFF77FA839BCE" author="Pena Cantero, A. L." box="[1102,1336,152,176]" pageId="38" pageNumber="39" 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>
); present material was collected between 254 and
<specimenCount id="9D17FD28A448FFD4EB71FF53FD0F9BAA" box="[613,692,188,213]" pageId="38" pageNumber="39" type="generic">
<quantity id="4CE99B44A448FFD4EB71FF53FD0B9BAA" box="[613,688,188,213]" metricMagnitude="2" metricUnit="m" metricValue="7.58" pageId="38" pageNumber="39" unit="m" value="758.0">758 m</quantity>
.
</specimenCount>
Species reported exclusively from East
<collectingCountry id="F3067631A448FFD4ED6BFF53FB4F9BAB" box="[1151,1268,188,213]" name="Antarctica" pageId="38" pageNumber="39">Antarctica</collectingCountry>
(
<bibRefCitation id="EF804B50A448FFD4EC17FF53FF5A9B86" author="Pena Cantero, A. L." pageId="38" pageNumber="39" pagination="243 - 280" refId="ref44359" refString="Pena Cantero, A. L. (2014 b) Revision of the Antarctic species of Halecium Oken, 1815 (Cnidaria, Hydrozoa, Haleciidae). Zootaxa, 3790 (2), 243 - 280. https: // doi. org / 10.11646 / zootaxa. 3790.2.2" type="journal article" year="2014">Peña Cantero 2014b</bibRefCitation>
). Thus, if confirmed, present record will constitute the first evidence from the Weddell Sea as well as for West
<collectingCountry id="F3067631A448FFD4E9C1FEEBFEF69A63" box="[213,333,260,285]" name="Antarctica" pageId="38" pageNumber="39">Antarctica</collectingCountry>
, pointing to a circum-Antarctic distribution.
</paragraph>
</subSubSection>
</treatment>
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