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<document id="9EED04ADD165D4E0A122FAFDA50C7701" ID-CLB-Dataset="6521" ID-DOI="10.11646/zootaxa.4966.3.4" ID-GBIF-Dataset="67f48cde-c614-4032-8c46-e21235b87124" ID-ISSN="1175-5326" ID-Zenodo-Dep="4736691" ID-ZooBank="F4CABF6C-1993-4112-A03E-4DBF708BB025" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1620120909097" checkinUser="plazi" docAuthor="Peña Cantero, Álvaro L." docDate="2021" docId="ED10C428FFF42300FF500B3DFEA5FF26" docLanguage="en" docName="zootaxa.4966.3.4.pdf" docOrigin="Zootaxa 4966 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Symplectoscyphus cumberlandicus" docType="treatment" docVersion="7" lastPageNumber="329" masterDocId="1129BC50FFF22308FFC70D70FFD4FFDF" masterDocTitle="Additions to knowledge of the biodiversity of benthic hydroids (Cnidaria: Hydrozoa) in the Balleny Islands (Antarctica)" masterLastPageNumber="336" masterPageNumber="321" pageNumber="327" updateTime="1698938311577" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="BB4C7906240CF17DE95A9C87E106AF1E">Additions to knowledge of the biodiversity of benthic hydroids (Cnidaria: Hydrozoa) in the Balleny Islands (Antarctica)</mods:title>
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<treatment id="ED10C428FFF42300FF500B3DFEA5FF26" ID-DOI="http://doi.org/10.5281/zenodo.4784084" ID-GBIF-Taxon="182384210" ID-Zenodo-Dep="4784084" LSID="urn:lsid:plazi:treatment:ED10C428FFF42300FF500B3DFEA5FF26" httpUri="http://treatment.plazi.org/id/ED10C428FFF42300FF500B3DFEA5FF26" lastPageId="8" lastPageNumber="329" pageId="6" pageNumber="327">
<subSubSection id="2DA326B5FFF4230EFF500B3DFCFCF9B8" box="[151,808,1613,1640]" pageId="6" pageNumber="327" type="nomenclature">
<paragraph id="6506753EFFF4230EFF500B3DFCFCF9B8" blockId="6.[151,808,1613,1676]" box="[151,808,1613,1640]" pageId="6" pageNumber="327">
<heading id="3E4EC252FFF4230EFF500B3DFCFCF9B8" bold="true" box="[151,808,1613,1640]" fontSize="11" level="1" pageId="6" pageNumber="327" reason="1">
<taxonomicName id="A2B90EBDFFF4230EFF500B3DFCFCF9B8" authority="(Jaderholm, 1905)" baseAuthorityName="Jaderholm" baseAuthorityYear="1905" box="[151,808,1613,1640]" class="Hydrozoa" family="Sertulariidae" genus="Symplectoscyphus" kingdom="Animalia" order="Leptothecata" pageId="6" pageNumber="327" phylum="Cnidaria" rank="species" species="cumberlandicus">
<emphasis id="57CDA92CFFF4230EFF500B3DFCFCF9B8" bold="true" box="[151,808,1613,1640]" pageId="6" pageNumber="327">
<emphasis id="57CDA92CFFF4230EFF500B3DFDE9F9B7" bold="true" box="[151,573,1613,1640]" italics="true" pageId="6" pageNumber="327">Symplectoscyphus cumberlandicus</emphasis>
(
<bibRefCitation id="012808CFFFF4230EFD8B0B3DFCCBF9B8" author="Jaderholm, E." box="[588,799,1613,1639]" pageId="6" pageNumber="327" pagination="1 - 41" refId="ref7382" refString="Jaderholm, E. (1905) Hydroiden aus antarktischen und subantarktischen Meeren, gesammelt von der schwedischen Sudpolarexpedition. Wissenschaftliche Ergebnisse der Schwedischen Sudpolar-Expedition 1901 - 1903, 5 (8), 1 - 41." type="journal article" year="1905">Jäderholm, 1905</bibRefCitation>
)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="2DA326B5FFF4230EFF500B02FEF4F953" box="[151,288,1650,1676]" pageId="6" pageNumber="327" type="description">
<paragraph id="6506753EFFF4230EFF500B02FEF4F953" blockId="6.[151,808,1613,1676]" box="[151,288,1650,1676]" pageId="6" pageNumber="327">
(
<figureCitation id="FD8269BBFFF4230EFF670B02FECCF953" box="[160,280,1650,1676]" captionStart="FIGURE 2" captionStartId="7.[151,250,1864,1888]" captionTargetBox="[247,1339,187,1834]" captionTargetId="figure-16@7.[241,1345,181,1840]" captionTargetPageId="7" captionText="FIGURE 2. Symplectoscyphus cumberlandicus (Jäderholm, 1905): A, hydrothecae; B, gonotheca. Halecium exaggeratum Peña Cantero, Boero &amp; Piraino, 2013: C, distal part of internode with hydrophore (arrow pointing to pseudodiaphragm) and hydrotheca. Schizotricha falcata Peña Cantero, 1998: D, forked hydrocladial internode and ahydrothecate internode (arrow); E, unforked hydrocladial internode showing hydrotheca and nematothecae; F, gonotheca; GH, forked hydrocladial internodes from holotype (arrows pointing to perisarc indentations). Scale bar: 200 µm." figureDoi="http://doi.org/10.5281/zenodo.4736697" httpUri="https://zenodo.org/record/4736697/files/figure.png" pageId="6" pageNumber="327">Fig. 2AB</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="2DA326B5FFF4230EFF500BC9FD51F927" pageId="6" pageNumber="327" type="materials_examined">
<paragraph id="6506753EFFF4230EFF500BC9FD51F927" blockId="6.[151,1436,1721,2036]" pageId="6" pageNumber="327">
<emphasis id="57CDA92CFFF4230EFF500BC9FDE4F90C" bold="true" box="[151,560,1721,1747]" pageId="6" pageNumber="327">Material examined. TAN 0602/420</emphasis>
, three stems up to
<quantity id="A241D8DBFFF4230EFCC60BCAFC84F90B" box="[769,848,1722,1748]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="6" pageNumber="327" unit="mm" value="10.0">10 mm</quantity>
high (
<collectionCode id="03A8EDFBFFF4230EFC520BCAFC0BF90B" box="[917,991,1722,1748]" country="New Zealand" httpUri="http://grbio.org/cool/nyq3-3g6s" name="National Institute of Water and Atmospheric Research" pageId="6" pageNumber="327" type="Other institutional type">NIWA</collectionCode>
144240);
<emphasis id="57CDA92CFFF4230EFB960BC9FB2EF90C" bold="true" box="[1105,1274,1721,1747]" pageId="6" pageNumber="327">TAN 0602/448</emphasis>
, one stem
<quantity id="A241D8DBFFF4230EFAB50BCAFF17F927" metricMagnitude="-1" metricUnit="m" metricValue="1.0" pageId="6" pageNumber="327" unit="mm" value="100.0">100 mm</quantity>
high, with gonothecae (
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144241).
</paragraph>
</subSubSection>
<subSubSection id="2DA326B5FFF4230EFF000A72FA82F89F" pageId="6" pageNumber="327" type="description">
<paragraph id="6506753EFFF4230EFF000A72FA82F89F" blockId="6.[151,1436,1721,2036]" pageId="6" pageNumber="327">
<emphasis id="57CDA92CFFF4230EFF000A72FE0BF8C4" bold="true" box="[199,479,1793,1820]" pageId="6" pageNumber="327">Measurements (in µm).</emphasis>
<emphasis id="57CDA92CFFF4230EFE200A72FDBEF8C3" box="[487,618,1794,1820]" italics="true" pageId="6" pageNumber="327">Hydrotheca</emphasis>
: length abcauline wall 350450, length free part of adcauline wall 140 200, length adnate part of adcauline wall 370, length adcauline wall 510570, diameter at aperture 160200.
</paragraph>
</subSubSection>
<subSubSection id="2DA326B5FFF4230EFF000A3AFCEAF82B" pageId="6" pageNumber="327" type="discussion">
<paragraph id="6506753EFFF4230EFF000A3AFCEAF82B" blockId="6.[151,1436,1721,2036]" pageId="6" pageNumber="327">
<emphasis id="57CDA92CFFF4230EFF000A3AFEEFF8BB" bold="true" box="[199,315,1866,1892]" pageId="6" pageNumber="327">Remarks.</emphasis>
The polysiphonic stem, branched in one plane, and the shape and size of hydrothecae (
<figureCitation id="FD8269BBFFF4230EFACA0A3AFAB1F8BB" box="[1293,1381,1866,1892]" captionStart="FIGURE 2" captionStartId="7.[151,250,1864,1888]" captionTargetBox="[247,1339,187,1834]" captionTargetId="figure-16@7.[241,1345,181,1840]" captionTargetPageId="7" captionText="FIGURE 2. Symplectoscyphus cumberlandicus (Jäderholm, 1905): A, hydrothecae; B, gonotheca. Halecium exaggeratum Peña Cantero, Boero &amp; Piraino, 2013: C, distal part of internode with hydrophore (arrow pointing to pseudodiaphragm) and hydrotheca. Schizotricha falcata Peña Cantero, 1998: D, forked hydrocladial internode and ahydrothecate internode (arrow); E, unforked hydrocladial internode showing hydrotheca and nematothecae; F, gonotheca; GH, forked hydrocladial internodes from holotype (arrows pointing to perisarc indentations). Scale bar: 200 µm." figureDoi="http://doi.org/10.5281/zenodo.4736697" httpUri="https://zenodo.org/record/4736697/files/figure.png" pageId="6" pageNumber="327">Fig. 2A</figureCitation>
) and gonothecae (
<figureCitation id="FD8269BBFFF4230EFEE20A1EFEA9F857" box="[293,381,1902,1928]" captionStart="FIGURE 2" captionStartId="7.[151,250,1864,1888]" captionTargetBox="[247,1339,187,1834]" captionTargetId="figure-16@7.[241,1345,181,1840]" captionTargetPageId="7" captionText="FIGURE 2. Symplectoscyphus cumberlandicus (Jäderholm, 1905): A, hydrothecae; B, gonotheca. Halecium exaggeratum Peña Cantero, Boero &amp; Piraino, 2013: C, distal part of internode with hydrophore (arrow pointing to pseudodiaphragm) and hydrotheca. Schizotricha falcata Peña Cantero, 1998: D, forked hydrocladial internode and ahydrothecate internode (arrow); E, unforked hydrocladial internode showing hydrotheca and nematothecae; F, gonotheca; GH, forked hydrocladial internodes from holotype (arrows pointing to perisarc indentations). Scale bar: 200 µm." figureDoi="http://doi.org/10.5281/zenodo.4736697" httpUri="https://zenodo.org/record/4736697/files/figure.png" pageId="6" pageNumber="327">Fig. 2B</figureCitation>
), the latter with about 13 spirally arranged rings, make certain the identification of the material from TAN 0602/448. The material from TAN 0602/420, although consisting of small stems up to
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high, also agrees in the shape and size of the hydrothecae. One of the stems has, in addition, a basal 3-mm-long stolon, pointing to the polysiphonic condition found in larger stems.
</paragraph>
</subSubSection>
<caption id="31C625B6FFF5230FFF500A38FC4AF82E" ID-DOI="http://doi.org/10.5281/zenodo.4736697" ID-Zenodo-Dep="4736697" httpUri="https://zenodo.org/record/4736697/files/figure.png" pageId="7" pageNumber="328" startId="7.[151,250,1864,1888]" targetBox="[247,1339,187,1834]" targetPageId="7">
<paragraph id="6506753EFFF5230FFF500A38FC4AF82E" blockId="7.[151,1437,1864,2033]" pageId="7" pageNumber="328">
<emphasis id="57CDA92CFFF5230FFF500A38FEC3F8BF" bold="true" box="[151,279,1864,1888]" pageId="7" pageNumber="328">FIGURE 2.</emphasis>
<taxonomicName id="A2B90EBDFFF5230FFEE50A38FC87F8BF" authority="(Jaderholm, 1905)" baseAuthorityName="Jaderholm" baseAuthorityYear="1905" box="[290,851,1864,1888]" class="Hydrozoa" family="Sertulariidae" genus="Symplectoscyphus" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="328" phylum="Cnidaria" rank="species" species="cumberlandicus">
<emphasis id="57CDA92CFFF5230FFEE50A38FD53F8BF" box="[290,647,1864,1888]" italics="true" pageId="7" pageNumber="328">Symplectoscyphus cumberlandicus</emphasis>
(
<bibRefCitation id="012808CFFFF5230FFD5F0A38FC9FF8BF" author="Jaderholm, E." box="[664,843,1864,1888]" pageId="7" pageNumber="328" pagination="1 - 41" refId="ref7382" refString="Jaderholm, E. (1905) Hydroiden aus antarktischen und subantarktischen Meeren, gesammelt von der schwedischen Sudpolarexpedition. Wissenschaftliche Ergebnisse der Schwedischen Sudpolar-Expedition 1901 - 1903, 5 (8), 1 - 41." type="journal article" year="1905">Jäderholm, 1905</bibRefCitation>
)
</taxonomicName>
: A, hydrothecae; B, gonotheca.
<taxonomicName id="A2B90EBDFFF5230FFB6C0A38FDF4F85A" authority="Pena Cantero, Boero &amp; Piraino, 2013" authorityName="Pena Cantero, Boero &amp; Piraino" authorityYear="2013" class="Hydrozoa" family="Haleciidae" genus="Halecium" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="328" phylum="Cnidaria" rank="species" species="exaggeratum">
<emphasis id="57CDA92CFFF5230FFB6C0A38FA48F8BF" box="[1195,1436,1864,1888]" italics="true" pageId="7" pageNumber="328">Halecium exaggeratum</emphasis>
<bibRefCitation id="012808CFFFF5230FFF500A1DFDF4F85A" author="Pena Cantero, A. L. &amp; Boero, F. &amp; Piraino, S." box="[151,544,1900,1925]" pageId="7" pageNumber="328" pagination="731 - 753" refId="ref7762" refString="Pena Cantero, A. L., Boero, F. &amp; Piraino, S. (2013) Shallow-water benthic hydroids from Tethys Bay (Terra Nova Bay, Ross Sea, Antarctica). Polar Biology, 36, 731 - 753. https: // doi. org / 10.1007 / s 00300 - 013 - 1299 - 3" type="journal article" year="2013">Peña Cantero, Boero &amp; Piraino, 2013</bibRefCitation>
</taxonomicName>
: C, distal part of internode with hydrophore (arrow pointing to pseudodiaphragm) and hydrotheca.
<taxonomicName id="A2B90EBDFFF5230FFED10AE0FD6DF876" authority="Pena Cantero, 1998" authorityName="Pena Cantero" authorityYear="1998" box="[278,697,1936,1961]" class="Hydrozoa" family="Halopterididae" genus="Schizotricha" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="328" phylum="Cnidaria" rank="species" species="falcata">
<emphasis id="57CDA92CFFF5230FFED10AE0FE37F877" box="[278,483,1936,1960]" italics="true" pageId="7" pageNumber="328">Schizotricha falcata</emphasis>
Peña Cantero, 1998
</taxonomicName>
: D, forked hydrocladial internode and ahydrothecate internode (arrow); E, unforked hydrocladial internode showing hydrotheca and nematothecae; F, gonotheca; GH, forked hydrocladial internodes from holotype (arrows pointing to perisarc indentations). Scale bar: 200 µm.
</paragraph>
</caption>
<subSubSection id="2DA326B5FFFA2300FF000DE7FEA5FF26" pageId="8" pageNumber="329" type="biology_ecology">
<paragraph id="6506753EFFFA2300FF000DE7FEA5FF26" blockId="8.[151,1437,150,249]" pageId="8" pageNumber="329">
<emphasis id="57CDA92CFFFA2300FF000DE7FE28FF6F" bold="true" box="[199,508,150,177]" pageId="8" pageNumber="329">Ecology and distribution.</emphasis>
Present material, the first record of
<taxonomicName id="A2B90EBDFFFA2300FC600DE7FAFBFF6E" baseAuthorityName="Jaderholm" baseAuthorityYear="1905" box="[935,1327,151,177]" class="Hydrozoa" family="Sertulariidae" genus="Symplectoscyphus" kingdom="Animalia" order="Leptothecata" pageId="8" pageNumber="329" phylum="Cnidaria" rank="species" species="cumberlandicus">
<emphasis id="57CDA92CFFFA2300FC600DE7FAFBFF6E" box="[935,1327,151,177]" italics="true" pageId="8" pageNumber="329">Symplectoscyphus cumberlandicus</emphasis>
</taxonomicName>
from the Balleny Islands, was collected at depths between 63 and
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off Young and Sturge islands. Gonothecae in material collected in March.
</paragraph>
</subSubSection>
</treatment>
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