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<document id="54F61D64B67D1FC9A8582150CAC2FB98" ID-CLB-Dataset="32747" ID-DOI="10.11646/zootaxa.4293.1.1" ID-GBIF-Dataset="dc2674e2-e260-4b6e-ad3a-731d610bccc5" ID-ISSN="1175-5326" ID-Zenodo-Dep="828475" ID-ZooBank="6FF96B5C-1F80-47ED-9962-19603DCBF550" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1500108894142" checkinUser="plazi" docAuthor="ÁLVARO L. PEÑA CANTERO" docDate="2017" docId="C84B87CACC39FF84E8DD04E20CB8F7FB" docLanguage="en" docName="zootaxa.4293.1.1.pdf.imf" docOrigin="Zootaxa 4293 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Halecium exaggeratum Pena Cantero, Boero &amp; Piraino 2013" docType="treatment" docVersion="19" lastPageNumber="50" masterDocId="3472FFB2CC16FFB5E84A00470F1FF553" masterDocTitle="Benthic hydroids (Cnidaria, Hydrozoa) from the Ross Sea (Antarctica) collected by the New Zealand Antarctic expedition BioRoss 2004 with RV Tangaroa" masterLastPageNumber="65" masterPageNumber="1" pageNumber="48" updateTime="1698465181473" updateUser="ExternalLinkService">
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<mods:title id="3037DA6B98CB16FFA51544E441F5D7E6">Benthic hydroids (Cnidaria, Hydrozoa) from the Ross Sea (Antarctica) collected by the New Zealand Antarctic expedition BioRoss 2004 with RV Tangaroa</mods:title>
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<mods:namePart id="A72EBA68E42EA2327F188DF3A7A272E6">ÁLVARO L. PEÑA CANTERO</mods:namePart>
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<mods:title id="4BC4131BC9E1C31FA84A9E3F52A5AA4C">Zootaxa</mods:title>
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<mods:date id="A5793FEC112D5839945BB10CA23E6860">2017</mods:date>
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<mods:identifier id="F310F92CBF70E968EDD66085A06DEAC7" type="DOI">10.11646/zootaxa.4293.1.1</mods:identifier>
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<treatment id="C84B87CACC39FF84E8DD04E20CB8F7FB" ID-DOI="http://doi.org/10.5281/zenodo.4386885" ID-GBIF-Taxon="132548827" ID-Zenodo-Dep="4386885" LSID="urn:lsid:plazi:treatment:C84B87CACC39FF84E8DD04E20CB8F7FB" httpUri="http://treatment.plazi.org/id/C84B87CACC39FF84E8DD04E20CB8F7FB" lastPageId="49" lastPageNumber="50" pageId="47" pageNumber="48">
<subSubSection id="08F86557CC39FF9AE8DD04E20E92F1B3" pageId="47" pageNumber="48" type="nomenclature">
<paragraph id="405D36DCCC39FF9AE8DD04E20C93F1EC" blockId="47.[151,908,1189,1248]" box="[151,908,1189,1215]" pageId="47" pageNumber="48">
<heading id="1B1581B0CC39FF9AE8DD04E20C93F1EC" bold="true" box="[151,908,1189,1215]" fontSize="11" level="1" pageId="47" pageNumber="48" reason="1">
<taxonomicName id="87E24D5FCC39FF9AE8DD04E20C93F1EC" ID-CoL="3JB42" authority="Pena Cantero, Boero &amp; Piraino, 2013" authorityName="Pena Cantero, Boero &amp; Piraino" authorityYear="2013" box="[151,908,1189,1215]" class="Hydrozoa" family="Haleciidae" genus="Halecium" kingdom="Animalia" order="Leptothecata" pageId="47" pageNumber="48" phylum="Cnidaria" rank="species" species="exaggeratum">
<emphasis id="7296EACECC39FF9AE8DD04E20C93F1EC" bold="true" box="[151,908,1189,1215]" pageId="47" pageNumber="48">
<emphasis id="7296EACECC39FF9AE8DD04E20EACF1EC" bold="true" box="[151,435,1189,1215]" italics="true" pageId="47" pageNumber="48">Halecium exaggeratum</emphasis>
<bibRefCitation id="24734B2DCC39FF9AE9F004E20C93F1EC" author="Pena" box="[442,908,1189,1215]" pageId="47" pageNumber="48" 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." type="journal article" year="2013">Peña Cantero, Boero &amp; Piraino, 2013</bibRefCitation>
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="405D36DCCC39FF9AE8DD04800E92F1B3" blockId="47.[151,908,1189,1248]" box="[151,397,1223,1248]" pageId="47" pageNumber="48">
(
<figureCitation id="D8D92A59CC39FF9AE8D504800FEEF1B3" box="[159,241,1223,1248]" captionStart="FIGURE 15" captionStartId="48.[151,250,1844,1866]" captionTargetBox="[239,1334,212,1793]" captionTargetId="figure@48.[217,1366,193,1818]" captionTargetPageId="48" captionText="FIGURE 15. Halecium banzare Watson, 2008: A, internodes with primary and second-order hydrothecae; B, gonotheca. Halecium exaggeratum Peña Cantero, Boero &amp; Piraino, 2013: C, internode with primary and secondary hydrotheca as well as lower-order branch; D, internodes with primary hydrothecae; E, gonotheca. Halecium interpolatum Ritchie, 1907: F, internode with primary hydrotheca and internode structure. Halecium jaederholmi Vervoort, 1972: G, internodes with primary hydrothecae. Halecium secundum Jäderholm, 1904: H, internode with primary hydrotheca. (A from Stn 53; B from Stn 139; C – E, H from Stn 67; F from Stn 107; G from Stn 112). Scale bar: 250 µm." httpUri="https://zenodo.org/record/828505/files/figure.png" pageId="47" pageNumber="48">Figs 15</figureCitation>
C–E, 16A–B)
</paragraph>
</subSubSection>
<subSubSection id="08F86557CC39FF9AE8DD05570A58F075" box="[151,1351,1296,1318]" pageId="47" pageNumber="48" type="reference_group">
<paragraph id="405D36DCCC39FF9AE8DD05570A58F075" blockId="47.[151,1351,1296,1318]" box="[151,1351,1296,1318]" pageId="47" pageNumber="48">
<treatmentCitationGroup id="60F211F2CC39FF9AE8DD05570A58F075" box="[151,1351,1296,1318]" pageId="47" pageNumber="48">
<taxonomicName id="87E24D5FCC39FF9AE8DD05570DA0F075" ID-CoL="3JB42" authority="Pena Cantero et al., 2013: 743" authorityName="Pena Cantero et al." authorityPageNumber="743" authorityYear="2013" box="[151,703,1296,1318]" class="Hydrozoa" family="Haleciidae" genus="Halecium" kingdom="Animalia" order="Leptothecata" pageId="47" pageNumber="48" phylum="Cnidaria" rank="species" species="exaggeratum">
<emphasis id="7296EACECC39FF9AE8DD05570E9BF075" box="[151,388,1296,1318]" italics="true" pageId="47" pageNumber="48">Halecium exaggeratum</emphasis>
Peña Cantero
<emphasis id="7296EACECC39FF9AEA5205560D54F075" box="[536,587,1296,1318]" italics="true" pageId="47" pageNumber="48">et al.</emphasis>
, 2013: 743
</taxonomicName>
, fig. 6d, e;
<treatmentCitation id="C14310CDCC39FF9AEB7B05560B27F075" author="Pena" box="[817,1080,1296,1318]" page="255" pageId="47" pageNumber="48" year="2014">
<bibRefCitation id="24734B2DCC39FF9AEB7B05560B16F075" author="Pena" box="[817,1033,1296,1318]" pageId="47" pageNumber="48" refString="Pena Cantero, A. L. (2014 b) Revision of the Antarctic species of Halecium Oken, 1815 (Cnidaria, Hydrozoa, Haleciidae). Zootaxa, 3790 (2), 243 - 280." type="journal article" year="2014" yearSuffix="b">Peña Cantero, 2014b</bibRefCitation>
: 255
</treatmentCitation>
–256, fig. 5K (synonymy).
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="08F86557CC39FF9AE8DD05150EE5F0DC" pageId="47" pageNumber="48" type="materials_examined">
<paragraph id="405D36DCCC39FF9AE8DD05150EE5F0DC" blockId="47.[151,1437,1362,1999]" pageId="47" pageNumber="48">
<emphasis id="7296EACECC39FF9AE8DD05150E9BF038" bold="true" box="[151,388,1362,1387]" pageId="47" pageNumber="48">Material examined.</emphasis>
Stn 67, polysiphonic stem
<quantity id="871A9B39CC39FF9AEA8205150C04F039" box="[712,795,1362,1387]" metricMagnitude="-2" metricUnit="m" metricValue="6.0" pageId="47" pageNumber="48" unit="mm" value="60.0">60 mm</quantity>
high on bryozoan, with male gonothecae, basibiont of
<taxonomicName id="87E24D5FCC39FF9AE8DD05310E29F0DC" box="[151,310,1398,1423]" class="Hydrozoa" family="Hebellidae" genus="Hebella" kingdom="Animalia" order="Leptothecata" pageId="47" pageNumber="48" phylum="Cnidaria" rank="species" species="plana">
<emphasis id="7296EACECC39FF9AE8DD05310E29F0DC" box="[151,310,1398,1423]" italics="true" pageId="47" pageNumber="48">Hebella plana</emphasis>
</taxonomicName>
(NIWA 117593).
</paragraph>
</subSubSection>
<subSubSection id="08F86557CC39FF9AE88D05DD0BA7F29C" pageId="47" pageNumber="48" type="description">
<paragraph id="405D36DCCC39FF9AE88D05DD0B62F334" blockId="47.[151,1437,1362,1999]" pageId="47" pageNumber="48">
<emphasis id="7296EACECC39FF9AE88D05DD0E46F0E0" bold="true" box="[199,345,1434,1459]" pageId="47" pageNumber="48">Description.</emphasis>
Stem
<quantity id="871A9B39CC39FF9AE9E205DD0EE4F0E1" box="[424,507,1434,1459]" metricMagnitude="-2" metricUnit="m" metricValue="6.0" pageId="47" pageNumber="48" unit="mm" value="60.0">60 mm</quantity>
high, strongly polysiphonic, irregularly branched. Some primary branches also polysiphonic, very long, becoming second-order stems. Secondary stems give rise to other branches, some also distinctly polysiphonic, becoming lower-order stems. Branching up to five-order. Stem and branches divided into internodes by alternately arranged oblique nodes. Internodes slightly arranged in zigzag. Branches typically originating from hydrophores (
<figureCitation id="D8D92A59CC39FF9AE9BD066D0D54F310" box="[503,587,1578,1603]" captionStart="FIGURE 15" captionStartId="48.[151,250,1844,1866]" captionTargetBox="[239,1334,212,1793]" captionTargetId="figure@48.[217,1366,193,1818]" captionTargetPageId="48" captionText="FIGURE 15. Halecium banzare Watson, 2008: A, internodes with primary and second-order hydrothecae; B, gonotheca. Halecium exaggeratum Peña Cantero, Boero &amp; Piraino, 2013: C, internode with primary and secondary hydrotheca as well as lower-order branch; D, internodes with primary hydrothecae; E, gonotheca. Halecium interpolatum Ritchie, 1907: F, internode with primary hydrotheca and internode structure. Halecium jaederholmi Vervoort, 1972: G, internodes with primary hydrothecae. Halecium secundum Jäderholm, 1904: H, internode with primary hydrotheca. (A from Stn 53; B from Stn 139; C – E, H from Stn 67; F from Stn 107; G from Stn 112). Scale bar: 250 µm." httpUri="https://zenodo.org/record/828505/files/figure.png" pageId="47" pageNumber="48">Fig. 15</figureCitation>
C); usually as single branches, although few paired branches, arising from opposite sides of hydrophore, also present. Some branches originating from hydrothecae.
</paragraph>
<paragraph id="405D36DCCC39FF9AE88D06350C52F380" blockId="47.[151,1437,1362,1999]" pageId="47" pageNumber="48">
Hydrophores long, free, with distal hydrotheca (
<figureCitation id="D8D92A59CC39FF9AEB0C06350CB5F3D8" box="[838,938,1650,1675]" captionStart="FIGURE 15" captionStartId="48.[151,250,1844,1866]" captionTargetBox="[239,1334,212,1793]" captionTargetId="figure@48.[217,1366,193,1818]" captionTargetPageId="48" captionText="FIGURE 15. Halecium banzare Watson, 2008: A, internodes with primary and second-order hydrothecae; B, gonotheca. Halecium exaggeratum Peña Cantero, Boero &amp; Piraino, 2013: C, internode with primary and secondary hydrotheca as well as lower-order branch; D, internodes with primary hydrothecae; E, gonotheca. Halecium interpolatum Ritchie, 1907: F, internode with primary hydrotheca and internode structure. Halecium jaederholmi Vervoort, 1972: G, internodes with primary hydrothecae. Halecium secundum Jäderholm, 1904: H, internode with primary hydrotheca. (A from Stn 53; B from Stn 139; C – E, H from Stn 67; F from Stn 107; G from Stn 112). Scale bar: 250 µm." httpUri="https://zenodo.org/record/828505/files/figure.png" pageId="47" pageNumber="48">Figs 15</figureCitation>
C–D, 16A); ratio adcauline length of hydrophore:diameter at diaphragm 1.3–2.5. Hydrophores straight, regularly diverging from internode. Hydrothecae extensively surpassing distal node of internode (
<figureCitation id="D8D92A59CC39FF9AEAF906FD0C19F380" box="[691,774,1722,1747]" captionStart="FIGURE 15" captionStartId="48.[151,250,1844,1866]" captionTargetBox="[239,1334,212,1793]" captionTargetId="figure@48.[217,1366,193,1818]" captionTargetPageId="48" captionText="FIGURE 15. Halecium banzare Watson, 2008: A, internodes with primary and second-order hydrothecae; B, gonotheca. Halecium exaggeratum Peña Cantero, Boero &amp; Piraino, 2013: C, internode with primary and secondary hydrotheca as well as lower-order branch; D, internodes with primary hydrothecae; E, gonotheca. Halecium interpolatum Ritchie, 1907: F, internode with primary hydrotheca and internode structure. Halecium jaederholmi Vervoort, 1972: G, internodes with primary hydrothecae. Halecium secundum Jäderholm, 1904: H, internode with primary hydrotheca. (A from Stn 53; B from Stn 139; C – E, H from Stn 67; F from Stn 107; G from Stn 112). Scale bar: 250 µm." httpUri="https://zenodo.org/record/828505/files/figure.png" pageId="47" pageNumber="48">Figs 15</figureCitation>
C–D).
</paragraph>
<paragraph id="405D36DCCC39FF9AE88D06990E08F26C" blockId="47.[151,1437,1362,1999]" pageId="47" pageNumber="48">
Hydrotheca low, widening distally, more adcaudally. Rim markedly everted (
<figureCitation id="D8D92A59CC39FF9AEC3706990BC4F3A4" box="[1149,1243,1758,1783]" captionStart="FIGURE 15" captionStartId="48.[151,250,1844,1866]" captionTargetBox="[239,1334,212,1793]" captionTargetId="figure@48.[217,1366,193,1818]" captionTargetPageId="48" captionText="FIGURE 15. Halecium banzare Watson, 2008: A, internodes with primary and second-order hydrothecae; B, gonotheca. Halecium exaggeratum Peña Cantero, Boero &amp; Piraino, 2013: C, internode with primary and secondary hydrotheca as well as lower-order branch; D, internodes with primary hydrothecae; E, gonotheca. Halecium interpolatum Ritchie, 1907: F, internode with primary hydrotheca and internode structure. Halecium jaederholmi Vervoort, 1972: G, internodes with primary hydrothecae. Halecium secundum Jäderholm, 1904: H, internode with primary hydrotheca. (A from Stn 53; B from Stn 139; C – E, H from Stn 67; F from Stn 107; G from Stn 112). Scale bar: 250 µm." httpUri="https://zenodo.org/record/828505/files/figure.png" pageId="47" pageNumber="48">Figs 15</figureCitation>
C–D, 16A). No pseudodiaphragm. Usually single secondary hydrotheca at end of relatively long pedicel, sometimes with several basal rings.
</paragraph>
<paragraph id="405D36DCCC39FF9AE88D070D0B36F230" blockId="47.[151,1437,1362,1999]" box="[199,1065,1866,1891]" pageId="47" pageNumber="48">
Gonothecae flattened, triangular, strongly narrowing at base (
<figureCitation id="D8D92A59CC39FF9AEB3C070D0CD4F230" box="[886,971,1866,1891]" captionStart="FIGURE 15" captionStartId="48.[151,250,1844,1866]" captionTargetBox="[239,1334,212,1793]" captionTargetId="figure@48.[217,1366,193,1818]" captionTargetPageId="48" captionText="FIGURE 15. Halecium banzare Watson, 2008: A, internodes with primary and second-order hydrothecae; B, gonotheca. Halecium exaggeratum Peña Cantero, Boero &amp; Piraino, 2013: C, internode with primary and secondary hydrotheca as well as lower-order branch; D, internodes with primary hydrothecae; E, gonotheca. Halecium interpolatum Ritchie, 1907: F, internode with primary hydrotheca and internode structure. Halecium jaederholmi Vervoort, 1972: G, internodes with primary hydrothecae. Halecium secundum Jäderholm, 1904: H, internode with primary hydrotheca. (A from Stn 53; B from Stn 139; C – E, H from Stn 67; F from Stn 107; G from Stn 112). Scale bar: 250 µm." httpUri="https://zenodo.org/record/828505/files/figure.png" pageId="47" pageNumber="48">Figs 15</figureCitation>
E, 16B).
</paragraph>
<paragraph id="405D36DCCC39FF9AE88D07290BA7F29C" blockId="47.[151,1437,1362,1999]" pageId="47" pageNumber="48">
<emphasis id="7296EACECC39FF9AE88D07290EC1F2D4" bold="true" box="[199,478,1902,1927]" pageId="47" pageNumber="48">Measurements (in µm).</emphasis>
<emphasis id="7296EACECC39FF9AE9AC07290D6AF2D4" box="[486,629,1902,1927]" italics="true" pageId="47" pageNumber="48">Hydrothecae</emphasis>
: diameter at aperture 150–170, diameter at diaphragm 100–115, height 40–50.
<emphasis id="7296EACECC39FF9AE8B907D50E65F2F8" box="[243,378,1938,1963]" italics="true" pageId="47" pageNumber="48">Hydrophore</emphasis>
: adcauline length 140–270.
<emphasis id="7296EACECC39FF9AEA9D07D50C41F2F8" box="[727,862,1938,1963]" italics="true" pageId="47" pageNumber="48">Gonothecae</emphasis>
: height 730–840, maximum diameter 650–700.
<emphasis id="7296EACECC39FF9AE8DD07F10FE3F29C" box="[151,252,1974,1999]" italics="true" pageId="47" pageNumber="48">Cnidome</emphasis>
: microbasic euryteles (7.5–
<date id="345C101CCC39FF9AEA7F07F10D49F29D" box="[565,598,1974,1999]" pageId="47" pageNumber="48">8 x</date>
4–4.5) and microbasic mastigophores (6.5–
<date id="345C101CCC39FF9AEC0907F10B7AF29D" box="[1091,1125,1974,1999]" pageId="47" pageNumber="48">7 x</date>
2 µm).
</paragraph>
</subSubSection>
<caption id="149D6654CC26FF85E8DD07730C97F2B0" httpUri="https://zenodo.org/record/828505/files/figure.png" pageId="48" pageNumber="49" targetBox="[239,1334,212,1793]" targetPageId="48">
<paragraph id="405D36DCCC26FF85E8DD07730C97F2B0" blockId="48.[151,1437,1844,2019]" pageId="48" pageNumber="49">
<emphasis id="7296EACECC26FF85E8DD07730E3BF21A" bold="true" box="[151,292,1844,1866]" pageId="48" pageNumber="49">FIGURE 15.</emphasis>
<taxonomicName id="87E24D5FCC26FF85E96407730D97F219" authority="Watson, 2008" authorityName="Watson" authorityYear="2008" box="[302,648,1844,1866]" class="Hydrozoa" family="Haleciidae" genus="Halecium" kingdom="Animalia" order="Leptothecata" pageId="48" pageNumber="49" phylum="Cnidaria" rank="species" species="banzare">
<emphasis id="7296EACECC26FF85E96407730EF4F219" box="[302,491,1844,1866]" italics="true" pageId="48" pageNumber="49">Halecium banzare</emphasis>
Watson, 2008
</taxonomicName>
: A, internodes with primary and second-order hydrothecae; B, gonotheca.
<taxonomicName id="87E24D5FCC26FF85E8DD07150C12F23B" authority="Pena Cantero, Boero &amp; Piraino, 2013" authorityName="Pena Cantero, Boero &amp; Piraino" authorityYear="2013" box="[151,781,1874,1896]" class="Hydrozoa" family="Haleciidae" genus="Halecium" kingdom="Animalia" order="Leptothecata" pageId="48" pageNumber="49" phylum="Cnidaria" rank="species" species="exaggeratum">
<emphasis id="7296EACECC26FF85E8DD07150E9BF23B" box="[151,388,1874,1896]" italics="true" pageId="48" pageNumber="49">Halecium exaggeratum</emphasis>
Peña Cantero, Boero &amp; Piraino, 2013
</taxonomicName>
: C, internode with primary and secondary hydrotheca as well as lower-order branch; D, internodes with primary hydrothecae; E, gonotheca.
<taxonomicName id="87E24D5FCC26FF85EBD107360A06F2D4" authority="Ritchie, 1907" authorityName="Ritchie" authorityYear="1907" box="[923,1305,1905,1927]" class="Hydrozoa" family="Haleciidae" genus="Halecium" kingdom="Animalia" order="Leptothecata" pageId="48" pageNumber="49" phylum="Cnidaria" rank="species" species="interpolatum">
<emphasis id="7296EACECC26FF85EBD107360B98F2D4" box="[923,1159,1905,1927]" italics="true" pageId="48" pageNumber="49">Halecium interpolatum</emphasis>
Ritchie, 1907
</taxonomicName>
: F, internode with primary hydrotheca and internode structure.
<taxonomicName id="87E24D5FCC26FF85EA8807C80B7FF2F6" authority="Vervoort, 1972" authorityName="Vervoort" authorityYear="1972" box="[706,1120,1935,1957]" class="Hydrozoa" family="Haleciidae" genus="Halecium" kingdom="Animalia" order="Leptothecata" pageId="48" pageNumber="49" phylum="Cnidaria" rank="species" species="jaederholmi">
<emphasis id="7296EACECC26FF85EA8807C80CB2F2F6" box="[706,941,1935,1957]" italics="true" pageId="48" pageNumber="49">Halecium jaederholmi</emphasis>
Vervoort, 1972
</taxonomicName>
: G, internodes with primary hydrothecae.
<taxonomicName id="87E24D5FCC26FF85E96B07E90DB9F297" authority="Jaderholm, 1904" authorityName="Jaderholm" authorityYear="1904" box="[289,678,1966,1988]" class="Hydrozoa" family="Haleciidae" genus="Halecium" kingdom="Animalia" order="Leptothecata" pageId="48" pageNumber="49" phylum="Cnidaria" rank="species" species="secundum">
<emphasis id="7296EACECC26FF85E96B07E90EEFF297" box="[289,496,1966,1988]" italics="true" pageId="48" pageNumber="49">Halecium secundum</emphasis>
Jäderholm, 1904
</taxonomicName>
: H, internode with primary hydrotheca. (A from Stn 53; B from Stn 139; C–E, H from Stn 67; F from Stn 107; G from Stn 112). Scale bar: 250 µm.
</paragraph>
</caption>
<subSubSection id="08F86557CC27FF84E88D00D00CB8F7FB" pageId="49" pageNumber="50" type="discussion">
<paragraph id="405D36DCCC27FF84E88D00D00BE1F483" blockId="49.[151,1436,151,680]" pageId="49" pageNumber="50">
<emphasis id="7296EACECC27FF84E88D00D00E24F5E3" bold="true" box="[199,315,151,176]" pageId="49" pageNumber="50">Remarks.</emphasis>
The present material differs from the concept of this species in being polysiphonic (cf.
<bibRefCitation id="24734B2DCC27FF84ED4D00DF0FFDF586" author="Pena" pageId="49" pageNumber="50" refString="Pena Cantero, A. L. (2014 b) Revision of the Antarctic species of Halecium Oken, 1815 (Cnidaria, Hydrozoa, Haleciidae). Zootaxa, 3790 (2), 243 - 280." type="journal article" year="2014" yearSuffix="b">Peña Cantero 2014b</bibRefCitation>
). However, the polysiphonic/monosiphonic condition could be related to the degree of colonial development. Only stems up to
<quantity id="871A9B39CC27FF84EA4200980D45F5A4" box="[520,602,223,248]" metricMagnitude="-2" metricUnit="m" metricValue="1.5" pageId="49" pageNumber="50" unit="mm" value="15.0">15 mm</quantity>
high had been reported, whereas the present material reaches
<quantity id="871A9B39CC27FF84ED6600980A62F5A4" box="[1324,1405,223,248]" metricMagnitude="-2" metricUnit="m" metricValue="6.0" pageId="49" pageNumber="50" unit="mm" value="60.0">60 mm</quantity>
in height. The studied material also differs in having a slightly lower ratio between adcauline length of hydrophore and diameter at diaphragm than in the original description (2.5–3.3 see Peña Cantero
<emphasis id="7296EACECC27FF84EC1C016E0B90F413" box="[1110,1167,295,320]" italics="true" pageId="49" pageNumber="50">et al.</emphasis>
2013), although similar to that of other material brought to this species by
<bibRefCitation id="24734B2DCC27FF84EA85010A0CD6F436" box="[719,969,332,357]" pageId="49" pageNumber="50" refString="Pena Cantero, A. L. (2014 b) Revision of the Antarctic species of Halecium Oken, 1815 (Cnidaria, Hydrozoa, Haleciidae). Zootaxa, 3790 (2), 243 - 280." type="journal article">Peña Cantero (2014b)</bibRefCitation>
. The diameter at the hydrothecal aperture is also slightly smaller than in the original description (200–215 µm, see Peña Cantero
<emphasis id="7296EACECC27FF84EC3E01360BB2F4DB" box="[1140,1197,367,392]" italics="true" pageId="49" pageNumber="50">et al.</emphasis>
2013). However, the present material perfectly agrees in the remaining trophosome characteristics and even in the shape and size of the gonothecae described by
<bibRefCitation id="24734B2DCC27FF84E9F901F00DF7F483" author="Blanco" box="[435,744,439,464]" pageId="49" pageNumber="50" refString="Blanco, O. M. (1984) Contribucion al conocimiento de hidrozoos antarticos y subantarticos. Contribuciones del Instituto Antartico Argentino, 294, 1 - 53, pls. 1 - 47." type="journal article" year="1984">Blanco (1984: pl. 5 fig. 13)</bibRefCitation>
. It also shares the type and size of nematocysts.
</paragraph>
<paragraph id="405D36DCCC27FF84E88D019B0EBAF733" blockId="49.[151,1436,151,680]" pageId="49" pageNumber="50">
<emphasis id="7296EACECC27FF84E88D019B0EE8F4A6" bold="true" box="[199,503,476,501]" pageId="49" pageNumber="50">Ecology and distribution.</emphasis>
Recently reviewed by Peña Cantero
<emphasis id="7296EACECC27FF84EBD3019A0CCDF4A6" box="[921,978,476,501]" italics="true" pageId="49" pageNumber="50">et al.</emphasis>
(2013) and
<bibRefCitation id="24734B2DCC27FF84EC16019A0A49F4A6" box="[1116,1366,476,501]" pageId="49" pageNumber="50" refString="Pena Cantero, A. L. (2014 b) Revision of the Antarctic species of Halecium Oken, 1815 (Cnidaria, Hydrozoa, Haleciidae). Zootaxa, 3790 (2), 243 - 280." type="journal article">Peña Cantero (2014b)</bibRefCitation>
. Shelf species (Peña Cantero
<emphasis id="7296EACECC27FF84E9D102460EC9F74B" box="[411,470,511,536]" italics="true" pageId="49" pageNumber="50">et al.</emphasis>
2013), found at depths between 25 (Peña Cantero
<emphasis id="7296EACECC27FF84EC6A02460B45F74B" box="[1056,1114,511,536]" italics="true" pageId="49" pageNumber="50">et al.</emphasis>
2013) and
<quantity id="871A9B39CC27FF84EC9501B80A37F744" box="[1247,1320,511,536]" metricMagnitude="2" metricUnit="m" metricValue="3.5" pageId="49" pageNumber="50" unit="m" value="350.0">350 m</quantity>
(
<bibRefCitation id="24734B2DCC27FF84ED7201B80FCCF76F" author="Hartlaub" pageId="49" pageNumber="50" refString="Hartlaub, C. (1904) Hydroiden. In: Expedition antarctique Belge. Resultats du voyage du S. Y. Belgica en 1897 - 1899. Rapports scientifiques, Zoologie, 1 - 19." type="book chapter" year="1904">Hartlaub 1904</bibRefCitation>
); present material between 272 and
<quantity id="871A9B39CC27FF84EA3402630DD5F76F" box="[638,714,548,573]" metricMagnitude="2" metricUnit="m" metricValue="2.86" pageId="49" pageNumber="50" unit="m" value="286.0">286 m</quantity>
, epibiotic on a bryozoan and basibiont of
<taxonomicName id="87E24D5FCC27FF84ECF502620A3AF76E" box="[1215,1317,548,573]" class="Hydrozoa" family="Hebellidae" genus="Hebella" kingdom="Animalia" order="Leptothecata" pageId="49" pageNumber="50" phylum="Cnidaria" rank="species" species="plana">
<emphasis id="7296EACECC27FF84ECF502620A3AF76E" box="[1215,1317,548,573]" italics="true" pageId="49" pageNumber="50">H. plana</emphasis>
</taxonomicName>
, and with gonothecae in February.
</paragraph>
<paragraph id="405D36DCCC27FF84E88D022B0CB8F7FB" blockId="49.[151,1436,151,680]" pageId="49" pageNumber="50">
<materialsCitation id="F08A3C81CC27FF84E88D022B0CB8F7FB" ID-GBIF-Occurrence="1572325146" location="Tethys Bay" pageId="49" pageNumber="50" specimenCount="1" stateProvince="Cape">
Circum-Antarctic distribution (Peña Cantero
<emphasis id="7296EACECC27FF84EA86022A0C18F7D6" box="[716,775,620,645]" italics="true" pageId="49" pageNumber="50">et al.</emphasis>
2013). In the Ross Sea, already known from
<location id="453D6007CC27FF84ED51022B0A83F7D6" LSID="urn:lsid:plazi:treatment:C84B87CACC39FF84E8DD04E20CB8F7FB:453D6007CC27FF84ED51022B0A83F7D6" box="[1307,1436,620,645]" name="Tethys Bay" pageId="49" pageNumber="50" stateProvince="Cape">Tethys Bay</location>
(Peña Cantero
<emphasis id="7296EACECC27FF84E97702D60E6AF7FB" box="[317,373,655,680]" italics="true" pageId="49" pageNumber="50">et al.</emphasis>
2013). Present material collected off
<collectingRegion id="8226F83ECC27FF84EB5102D70C4AF7FB" box="[795,853,656,680]" country="South Africa" name="Western Cape" pageId="49" pageNumber="50">Cape</collectingRegion>
Hallet.
</materialsCitation>
</paragraph>
</subSubSection>
</treatment>
</document>
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