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<document id="587CA3BA1D25732A75AD069483533954" ID-DOI="10.1080/00222930600845259" ID-ISSN="1464-5262" ID-Zenodo-Dep="4581813" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1614874851036" checkinUser="carolina" docAuthor="Marques, Antonio Carlos, Cantero, Alvaro Luis Peña &amp; Migotto, Alvaro Esteves" docDate="2006" docId="9A4C92114F549D39FE17FB93FC4BBABC" docLanguage="en" docName="JNATHIST.40.17-18.1047-1062.pdf" docOrigin="Journal of Natural History 40 (17 - 18)" docStyle="DocumentStyle:7E99CF6C63B49250F2A87C3AEDC82D8C.2:JNatHist.2005-2007.journal_article.2cover" docStyleId="7E99CF6C63B49250F2A87C3AEDC82D8C" docStyleName="JNatHist.2005-2007.journal_article.2cover" docStyleVersion="2" docTitle="Halisiphonia arctica Kramp 1932" docType="treatment" docVersion="3" lastPageNumber="1052" masterDocId="6675EA694F509D3EFFA9FFF6FFCEBE60" masterDocTitle="Revision of Halisiphonia Allman, 1888 (Cnidaria, Hydrozoa, Hebellidae), with comments on its taxonomic position" masterLastPageNumber="1062" masterPageNumber="1047" pageNumber="1049" updateTime="1698880196788" updateUser="plazi" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
<mods:mods id="929C77CE5487C3A73E5E9FD2D4492F04" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="C4E6024DCBB6D5D4F0FB68D45012200C">
<mods:title id="4E2D171CC9C9CAF696C2B002DCAD633E">Revision of Halisiphonia Allman, 1888 (Cnidaria, Hydrozoa, Hebellidae), with comments on its taxonomic position</mods:title>
</mods:titleInfo>
<mods:name id="D6B320140FD795920D40445E0982D79E" type="personal">
<mods:role id="39450A3892B5B4B9F53FC00FE4EFFB64">
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<mods:namePart id="C4B10230F3135CFD5FBE52E8F6891AF7">Marques, Antonio Carlos</mods:namePart>
</mods:name>
<mods:name id="CC4F020B85BFF08162A2C4A0C4F0B129" type="personal">
<mods:role id="F3C517D73DE06381A48F3C2AAEC9834F">
<mods:roleTerm id="5430A2749D32DB33D8EB5612ACC17E88">Author</mods:roleTerm>
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<mods:namePart id="13572519BDEBD95CE2E04639A26FECFF">Cantero, Alvaro Luis Peña</mods:namePart>
</mods:name>
<mods:name id="7CD1695FCE0A138AD4A406BF2F57408B" type="personal">
<mods:role id="68704DEB3F46E0E0521FDE471B59B3B4">
<mods:roleTerm id="5CBFE9A900743B3BA82D239FE6F77920">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="2BB0E9E2168958D0ED54073DDD447D98">Migotto, Alvaro Esteves</mods:namePart>
</mods:name>
<mods:typeOfResource id="BEA1D7A8D486B38AABB61535425A5508">text</mods:typeOfResource>
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<mods:titleInfo id="4B0E8B9500A55436CFEBE2B334749562">
<mods:title id="8662C1A8883E1CF40D8FEDA3228E7D1A">Journal of Natural History</mods:title>
</mods:titleInfo>
<mods:part id="0B92371C4E370434690DF67293C2333D">
<mods:date id="BD67C1FA9D8C2B0D7C25DC0020AF0B57">2006</mods:date>
<mods:detail id="FBE8DF1271B02D2A378144DE3638462C" type="pubDate">
<mods:number id="816EC61ECDD1E28F4C33232368688D69">2006-08-28</mods:number>
</mods:detail>
<mods:detail id="9E6C6A4D3AF242A8F2D436BD16B7F6DA" type="volume">
<mods:number id="C288F3FBA74FB83F1D5DE5306BED05F8">40</mods:number>
</mods:detail>
<mods:detail id="C8B8569CDAFED631DC31F7DA112186A8" type="issue">
<mods:number id="AB7B440F96D4C4EAA1FD141DA083C864">17 - 18</mods:number>
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<mods:start id="02136B848BC37B74922970D360C87CBE">1047</mods:start>
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</mods:extent>
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<mods:classification id="7C23AEE00202321FAAACD93C3E1B6759">journal article</mods:classification>
<mods:identifier id="5217CD923F9A42E3110C8D235B21E174" type="DOI">10.1080/00222930600845259</mods:identifier>
<mods:identifier id="9E430E658EA9D81F9CF36627AE0EDCC8" type="ISSN">1464-5262</mods:identifier>
<mods:identifier id="1E229E65F1200FB14A68093FD28300E3" type="Zenodo-Dep">4581813</mods:identifier>
</mods:mods>
<treatment id="9A4C92114F549D39FE17FB93FC4BBABC" LSID="urn:lsid:plazi:treatment:9A4C92114F549D39FE17FB93FC4BBABC" httpUri="http://treatment.plazi.org/id/9A4C92114F549D39FE17FB93FC4BBABC" lastPageId="7" lastPageNumber="1052" pageId="4" pageNumber="1049">
<subSubSection id="5AFF708C4F549D3AFE17FB93FCA3BA1D" box="[446,877,1125,1149]" pageId="4" pageNumber="1049" type="nomenclature">
<paragraph id="125A23074F549D3AFE17FB93FCA3BA1D" blockId="4.[138,1101,1125,1245]" box="[446,877,1125,1149]" pageId="4" pageNumber="1049">
<heading id="4912946B4F549D3AFE17FB93FCA3BA1D" box="[446,877,1125,1149]" centered="true" fontSize="10" level="2" pageId="4" pageNumber="1049" reason="2">
<taxonomicName id="D5E558844F549D3AFE17FB93FCA3BA1D" ID-CoL="6KZ5D" authority="Kramp, 1932" authorityName="Kramp" authorityYear="1932" box="[446,877,1125,1149]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="4" pageNumber="1049" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F549D3AFE17FB93FD06BA1D" bold="true" box="[446,712,1125,1149]" italics="true" pageId="4" pageNumber="1049">Halisiphonia arctica</emphasis>
<bibRefCitation id="76745EF64F549D3AFD79FB93FCA3BA1D" author="Kramp PL" box="[720,877,1125,1149]" pageId="4" pageNumber="1049" pagination="1 - 86" refId="ref7522" refString="Kramp PL. 1932. The Godthaab Expedition 1928. Hydroids. Meddelelser om GrOnland 79 (1): 1 - 86, Figures 1 - 34." type="journal article" year="1932">Kramp, 1932</bibRefCitation>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="5AFF708C4F549D3AFD87FB73FCCABAFD" box="[558,772,1157,1181]" pageId="4" pageNumber="1049" type="description">
<paragraph id="125A23074F549D3AFD87FB73FCCABAFD" blockId="4.[138,1101,1125,1245]" box="[558,772,1157,1181]" pageId="4" pageNumber="1049">
(
<figureCitation id="8ADE3F824F549D3AFD9FFB73FD59BAFD" box="[566,663,1157,1181]" captionStart="Figure 1" captionStartId="6.[138,198,1609,1628]" captionTargetBox="[9,1179,135,1573]" captionTargetId="figure-1@6.[143,1180,133,1573]" captionTargetPageId="6" captionText="Figure 1. Halisiphonia arctica Kramp, 1932. (A) Hydrotheca, lateral view; (B) portion of a colony; (C) hydrothecal diaphragm; (D) base of hydrotheca showing desmocytes; (E) gonothecae, lateral view. Scale bars: 200 Mm (A); 1.0 mm (B); 25 Mm (C); 100 Mm (D); 500 Mm (E)." figureDoi="http://doi.org/10.5281/zenodo.4581815" httpUri="https://zenodo.org/record/4581815/files/figure.png" pageId="4" pageNumber="1049">Figure 1</figureCitation>
;
<tableCitation id="5F6716BC4F549D3AFD01FB73FD35BAFD" box="[680,763,1157,1181]" captionStart="Table I" captionStartId="5.[125,179,995,1014]" captionText="Table I. Morphometric data of the holotype specimen of Halisiphonia arctica." pageId="4" pageNumber="1049">Table I</tableCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="5AFF708C4F549D3AFF23FB53FC77BABD" pageId="4" pageNumber="1049" type="reference_group">
<paragraph id="125A23074F549D3AFF23FB53FC77BABD" blockId="4.[138,1101,1125,1245]" pageId="4" pageNumber="1049">
<taxonomicName id="D5E558844F549D3AFF23FB53FD87BADD" ID-CoL="6KZ5D" authority="Kramp 1932, p 37" authorityName="Kramp" authorityPageNumber="37" authorityYear="1932" box="[138,585,1189,1213]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="4" pageNumber="1049" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F549D3AFF23FB53FEA8BADD" box="[138,358,1189,1213]" italics="true" pageId="4" pageNumber="1049">Halisiphonia arctica</emphasis>
<bibRefCitation id="76745EF64F549D3AFED9FB53FDC7BADD" author="Kramp PL" box="[368,521,1189,1213]" pageId="4" pageNumber="1049" pagination="1 - 86" refId="ref7522" refString="Kramp PL. 1932. The Godthaab Expedition 1928. Hydroids. Meddelelser om GrOnland 79 (1): 1 - 86, Figures 1 - 34." type="journal article" year="1932">Kramp 1932</bibRefCitation>
, p 37
</taxonomicName>
, Figures 17–20, 31;
<bibRefCitation id="76745EF64F549D3AFC90FB53FC1CBADD" author="Kramp PL" box="[825,978,1189,1213]" pageId="4" pageNumber="1049" pagination="1 - 115" refId="ref7631" refString="Kramp PL. 1963. Summary of the zoological results of the '' Godthaab' ' expedition: 1928. The Godthaab Expedition 1928. Meddelelser om GrOnland 81: 1 - 115." type="journal article" year="1963">Kramp 1963</bibRefCitation>
, p 53, 106 (incorrectly assigned as ‘‘n. sp.’’);
<bibRefCitation id="76745EF64F549D3AFD91FB33FD3BBABD" author="Schuchert P" box="[568,757,1221,1245]" pageId="4" pageNumber="1049" pagination="1 - 184" refId="ref8267" refString="Schuchert P. 2001. Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa). Meddelelser om GrOnland, Bioscience 53: 1 - 184, Figures 1 - 138, Appendices 1 - 3." type="journal article" year="2001">Schuchert 2001</bibRefCitation>
, p 61, Figure 47.
</paragraph>
</subSubSection>
<subSubSection id="5AFF708C4F549D39FF23FAFEFC4BBABC" lastPageId="7" lastPageNumber="1052" pageId="4" pageNumber="1049" type="materials_examined">
<paragraph id="125A23074F549D3AFF23FAFEFE96BB40" blockId="4.[138,344,1288,1312]" box="[138,344,1288,1312]" pageId="4" pageNumber="1049">
<emphasis id="2091FF154F549D3AFF23FAFEFE96BB40" box="[138,344,1288,1312]" italics="true" pageId="4" pageNumber="1049">Material examined</emphasis>
</paragraph>
<paragraph id="125A23074F549D3AFF23FACEFF39BB10" blockId="4.[138,1185,1336,1392]" pageId="4" pageNumber="1049">
<materialsCitation id="A28D295A4F549D3AFF23FACEFF39BB10" collectionCode="ZMUC" pageId="4" pageNumber="1049" specimenCount="1" typeStatus="holotype">
<typeStatus id="CD5E9DA54F549D3AFF23FACEFF34BB30" box="[138,250,1336,1360]" pageId="4" pageNumber="1049" type="holotype">Holotype</typeStatus>
:
<taxonomicName id="D5E558844F549D3AFEADFACEFD4DBB30" authority="Kramp, 1932" authorityName="Kramp" authorityYear="1932" box="[260,643,1336,1360]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="4" pageNumber="1049" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F549D3AFEADFACEFE10BB30" box="[260,478,1336,1360]" italics="true" pageId="4" pageNumber="1049">Halisiphonia arctica</emphasis>
<bibRefCitation id="76745EF64F549D3AFE4CFACEFD4DBB30" author="Kramp PL" box="[485,643,1336,1360]" pageId="4" pageNumber="1049" pagination="1 - 86" refId="ref7522" refString="Kramp PL. 1932. The Godthaab Expedition 1928. Hydroids. Meddelelser om GrOnland 79 (1): 1 - 86, Figures 1 - 34." type="journal article" year="1932">Kramp, 1932</bibRefCitation>
</taxonomicName>
, colony with gonothecae in alcohol (
<collectionCode id="74F4BBC24F549D3AFB8AFACEFBB3BB30" box="[1059,1149,1336,1360]" country="Denmark" httpUri="http://grbio.org/cool/mci8-ehqk" name="Zoological Museum, University of Copenhagen" pageId="4" pageNumber="1049">ZMUC</collectionCode>
no number).
</materialsCitation>
</paragraph>
<paragraph id="125A23074F549D3AFF23FA6DFED8BBD2" blockId="4.[138,278,1434,1458]" box="[138,278,1434,1458]" pageId="4" pageNumber="1049">
<emphasis id="2091FF154F549D3AFF23FA6DFED8BBD2" box="[138,278,1434,1458]" italics="true" pageId="4" pageNumber="1049">Type locality</emphasis>
</paragraph>
<paragraph id="125A23074F549D3AFF23FA3CFCF5B862" blockId="4.[138,1185,1482,1538]" pageId="4" pageNumber="1049">
<materialsCitation id="A28D295A4F549D3AFF23FA3CFCF9B862" collectingDate="1928-08-23" country="Greenland" elevation="1200" location="Baffin Bay" pageId="4" pageNumber="1049" specimenCount="1">
<location id="173A75DC4F549D3AFF23FA3CFEC4BB82" LSID="urn:lsid:plazi:treatment:9A4C92114F549D39FE17FB93FC4BBABC:173A75DC4F549D3AFF23FA3CFEC4BB82" box="[138,266,1482,1506]" country="Greenland" name="Baffin Bay" pageId="4" pageNumber="1049">Baffin Bay</location>
(
<collectingCountry id="6AF263974F549D3AFEB6FA3CFE6FBB82" box="[287,417,1482,1506]" name="Greenland" pageId="4" pageNumber="1049">Greenland</collectingCountry>
), 74
<emphasis id="2091FF154F549D3AFE70FA3CFE2DBB82" bold="true" box="[473,483,1482,1506]" italics="true" pageId="4" pageNumber="1049">°</emphasis>
419N, 70
<emphasis id="2091FF154F549D3AFDFBFA3CFD92BB82" bold="true" box="[594,604,1482,1506]" italics="true" pageId="4" pageNumber="1049">°</emphasis>
309E,
<quantity id="D51D8EE24F549D3AFD03FA3CFCCDBB82" box="[682,771,1482,1506]" metricMagnitude="3" metricUnit="m" metricValue="1.2" pageId="4" pageNumber="1049" unit="m" value="1200.0">
<elevation id="99C8C4344F549D3AFD03FA3CFCCDBB82" box="[682,771,1482,1506]" metricMagnitude="3" metricUnit="m" metricValue="1.2" pageId="4" pageNumber="1049" unit="m" value="1200.0">1200 m</elevation>
</quantity>
,
<date id="665B05C74F549D3AFCBFFA3CFC10BB82" box="[790,990,1482,1506]" pageId="4" pageNumber="1049" value="1928-08-23">
<collectingDate id="761FFC2F4F549D3AFCBFFA3CFC10BB82" box="[790,990,1482,1506]" pageId="4" pageNumber="1049" value="1928-08-23">23 August 1928</collectingDate>
</date>
,
<collectedFrom id="A1F960FA4F549D3AFC59FA3CFE6EB862" pageId="4" pageNumber="1049">
on
<taxonomicName id="D5E558844F549D3AFBB2FA3CFE6EB862" authority="Bonnevie, 1898" authorityName="Bonnevie" authorityYear="1898" class="Hydrozoa" family="Eudendriidae" genus="Eudendrium" kingdom="Animalia" order="Anthoathecata" pageId="4" pageNumber="1049" phylum="Cnidaria" rank="species" species="planum">
<emphasis id="2091FF154F549D3AFBB2FA3CFF12B862" italics="true" pageId="4" pageNumber="1049">Eudendrium planum</emphasis>
<bibRefCitation id="76745EF64F549D3AFF4CFA1CFE6EB862" author="Bonnevie K" box="[229,416,1514,1538]" pageId="4" pageNumber="1049" pagination="465 - 495" refId="ref7280" refString="Bonnevie K. 1898. Zur Systematik der Hydroiden. Zeitschrift fur Wissenschaftliche Zoologie 63: 465 - 495, Plates 25 - 27." type="journal article" year="1898">Bonnevie, 1898</bibRefCitation>
</taxonomicName>
</collectedFrom>
, ‘‘Godthaab’’ Expedition Sta. 135
</materialsCitation>
.
</paragraph>
<paragraph id="125A23074F549D3AFF23F9DBFE4EB825" blockId="4.[138,384,1581,1605]" box="[138,384,1581,1605]" pageId="4" pageNumber="1049">
<emphasis id="2091FF154F549D3AFF23F9DBFE4EB825" box="[138,384,1581,1605]" italics="true" pageId="4" pageNumber="1049">
Description of
<typeStatus id="CD5E9DA54F549D3AFE81F9DBFE4EB825" box="[296,384,1581,1605]" pageId="4" pageNumber="1049" type="holotype">holotype</typeStatus>
</emphasis>
</paragraph>
<paragraph id="125A23074F549D3BFF23F9ABFC00BCE7" blockId="4.[138,1185,1629,1685]" lastBlockId="5.[125,1172,137,939]" lastPageId="5" lastPageNumber="1050" pageId="4" pageNumber="1049">
Colony stolonal, creeping on hydrocaulus of
<taxonomicName id="D5E558844F549D3AFD0BF9ABFC4CB815" authorityName="Bonnevie" authorityYear="1898" box="[674,898,1629,1653]" class="Hydrozoa" family="Eudendriidae" genus="Eudendrium" kingdom="Animalia" order="Anthoathecata" pageId="4" pageNumber="1049" phylum="Cnidaria" rank="species" species="planum">
<emphasis id="2091FF154F549D3AFD0BF9ABFC4CB815" box="[674,898,1629,1653]" italics="true" pageId="4" pageNumber="1049">Eudendrium planum</emphasis>
</taxonomicName>
. Stolonal hydrorhiza—a network of branching and anastomosing tubes of thin perisarc—giving rise to numerous pedicellate hydrothecae and five gonothecae. Pedicels smooth, with three to six complete basal annuli,
<quantity id="D51D8EE24F559D3BFEBCFF5FFE75BEA1" box="[277,443,169,193]" metricMagnitude="-3" metricUnit="m" metricValue="2.605" metricValueMax="4.85" metricValueMin="0.36" pageId="5" pageNumber="1050" unit="mm" value="2.605" valueMax="4.85" valueMin="0.36">0.36–4.85 mm</quantity>
long, almost cylindrical throughout (
<quantity id="D51D8EE24F559D3BFCCAFF5FFBC5BEA1" box="[867,1035,169,193]" metricMagnitude="-4" metricUnit="m" metricValue="1.15" metricValueMax="1.3" metricValueMin="1.0" pageId="5" pageNumber="1050" unit="mm" value="0.115" valueMax="0.13" valueMin="0.1">0.10–0.13 mm</quantity>
wide where walls are parallel), slightly and progressively widening to base of hydrothecae, merging into it almost imperceptibly. Hydrothecae deep conical to almost cylindrical,
<quantity id="D51D8EE24F559D3BFC1AFF1CFB97BF62" box="[947,1113,234,258]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" metricValueMax="11.299999999999999" metricValueMin="6.7" pageId="5" pageNumber="1050" unit="mm" value="0.8999999999999999" valueMax="1.13" valueMin="0.67">0.67–1.13 mm</quantity>
high (from diaphragm up to distal renovation),
<quantity id="D51D8EE24F559D3BFDC9FEFCFCC8BF42" box="[608,774,266,290]" metricMagnitude="-4" metricUnit="m" metricValue="1.7" metricValueMax="2.3" metricValueMin="1.1" pageId="5" pageNumber="1050" unit="mm" value="0.17" valueMax="0.23" valueMin="0.11">0.11–0.23 mm</quantity>
wide at diaphragm,
<quantity id="D51D8EE24F559D3BFC47FEFCFB5ABF42" box="[1006,1172,266,290]" metricMagnitude="-4" metricUnit="m" metricValue="2.85" metricValueMax="3.8" metricValueMin="1.9" pageId="5" pageNumber="1050" unit="mm" value="0.285" valueMax="0.38" valueMin="0.19">0.19–0.38 mm</quantity>
wide at aperture, with straight and smooth walls (sometimes with inconspicuous undulations) and thin perisarc; margin entire, slightly flaring, with up to 13 renovations; aperture perpendicular to long axis of hydrotheca. Diaphragm membranous, transversal; desmocytes small (ca 4 Mm in diameter) and inconspicuous, irregularly distributed or forming one or two transversal rows above diaphragm. Hydranths
<quantity id="D51D8EE24F559D3BFC0EFE5AFB80BFA4" box="[935,1102,428,452]" metricMagnitude="-4" metricUnit="m" metricValue="2.0" metricValueMax="2.5" metricValueMin="1.5" pageId="5" pageNumber="1050" unit="mm" value="0.2" valueMax="0.25" valueMin="0.15">0.15–0.25 mm</quantity>
high,
<quantity id="D51D8EE24F559D3BFFD4FE3BFEEABF85" box="[125,292,461,485]" metricMagnitude="-4" metricUnit="m" metricValue="1.9" metricValueMax="2.2" metricValueMin="1.6" pageId="5" pageNumber="1050" unit="mm" value="0.19" valueMax="0.22" valueMin="0.16">0.16–0.22 mm</quantity>
wide at base of tentacles, with 12–16 tentacles, hypostome conical. Retracted hydranths lying over diaphragm. Hydranth regenerations leaving marks outside (margin renovations) and inside the hydrotheca; new diaphragm formed above the preceding one resulting in a fine thickened line around inner side of hydrotheca and corresponding cycles of desmocytes (not always seen); previous diaphragm may disappear. Hydranth base may be marked with several slight constrictions at the place of older diaphragms.
</paragraph>
<paragraph id="125A23074F559D39FF31FD66FC45BF60" blockId="5.[125,1172,137,939]" lastBlockId="7.[125,1173,136,383]" lastPageId="7" lastPageNumber="1052" pageId="5" pageNumber="1050">
Gonothecae spatulate, rounded basally, truncated apically, a narrow transverse slit as superior aperture, arising singly from hydrorhiza on short, annulated pedicels (two to three rings). Pedicel
<quantity id="D51D8EE24F559D3BFE99FD26FE19BC88" box="[304,471,720,744]" metricMagnitude="-4" metricUnit="m" metricValue="1.15" metricValueMax="1.3" metricValueMin="1.0" pageId="5" pageNumber="1050" unit="mm" value="0.115" valueMax="0.13" valueMin="0.1">0.10–0.13 mm</quantity>
high,
<quantity id="D51D8EE24F559D3BFD8CFD26FD03BC88" box="[549,717,720,744]" metricMagnitude="-4" metricUnit="m" metricValue="1.15" metricValueMax="1.3" metricValueMin="1.0" pageId="5" pageNumber="1050" unit="mm" value="0.115" valueMax="0.13" valueMin="0.1">0.10–0.13 mm</quantity>
wide. Gonotheca
<quantity id="D51D8EE24F559D3BFC01FD26FB9EBC88" box="[936,1104,720,744]" metricMagnitude="-3" metricUnit="m" metricValue="2.96" metricValueMax="3.42" metricValueMin="2.5" pageId="5" pageNumber="1050" unit="mm" value="2.96" valueMax="3.42" valueMin="2.5">2.50–3.42 mm</quantity>
high,
<quantity id="D51D8EE24F559D3BFFD4FD07FEEBBD69" box="[125,293,753,777]" metricMagnitude="-3" metricUnit="m" metricValue="1.5899999999999999" metricValueMax="1.73" metricValueMin="1.45" pageId="5" pageNumber="1050" unit="mm" value="1.5899999999999999" valueMax="1.73" valueMin="1.45">1.45–1.73 mm</quantity>
wide at aperture,
<quantity id="D51D8EE24F559D3BFE54FD07FD6BBD69" box="[509,677,753,777]" metricMagnitude="-4" metricUnit="m" metricValue="4.65" metricValueMax="5.3" metricValueMin="4.0" pageId="5" pageNumber="1050" unit="mm" value="0.465" valueMax="0.53" valueMin="0.4">0.40–0.53 mm</quantity>
wide at base. Two gonothecae containing medusa buds, clearly seen through the fine and transparent gonothecal perisarc. Each gonotheca with two buds in a row, occupying only a fraction of gonothecal inner space; distal bud larger and more developed, with recognizable tentacles, manubrium, and umbrella. Umbrella twice as high as wide, mesoglea thin; manubrium tubular, reaching about halfway to bell margin. In both gonothecae, buds enclosed by a mantle. Peduncle uniting blastostyle to stem coenosarc broken in both cases. Apparently four tentacles with large bulbs. No nematocysts on the exumbrella or on the mantle. Neither radial canal (at higher magnification, 400X) nor sensorial structures (ocelli, statocysts) seen. Absence of gonads indicating that buds possibly represent immature medusae.
</paragraph>
<caption id="469A738F4F559D3BFFD4FC15FC9EBD96" box="[125,848,995,1014]" pageId="5" pageNumber="1050">
<paragraph id="125A23074F559D3BFFD4FC15FC9EBD96" blockId="5.[125,848,995,1014]" box="[125,848,995,1014]" pageId="5" pageNumber="1050">
Table I. Morphometric data of the holotype specimen of
<taxonomicName id="D5E558844F559D3BFD33FC15FC84BD96" authorityName="Kramp" authorityYear="1932" box="[666,842,995,1014]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="5" pageNumber="1050" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F559D3BFD33FC15FC84BD96" box="[666,842,995,1014]" italics="true" pageId="5" pageNumber="1050">Halisiphonia arctica</emphasis>
</taxonomicName>
.
</paragraph>
</caption>
<paragraph id="125A23074F559D3BFCE8FBE1FBF2B8E0" pageId="5" pageNumber="1050">
<table id="60E5D1A74F5562C1FFD4FBE0FBF2B8E0" box="[125,1084,1046,1664]" colsContinueIn="8.[138,1102,196,628]" gridcols="2" gridrows="23" pageId="5" pageNumber="1050">
<tr id="ACD521454F5562C1FFD4FBE0FBF2BA4A" box="[125,1084,1046,1066]" gridrow="0" pageId="5" pageNumber="1050">
<th id="EF0448394F5562C1FFD4FBE0FBF2BA4A" box="[125,1084,1046,1066]" colspan="2" colspanRight="1" gridcol="0" gridrow="0" pageId="5" pageNumber="1050">
Mean¡SD (range) (
<emphasis id="2091FF154F559D3BFBADFBE1FBC1BA4A" box="[1028,1039,1047,1066]" italics="true" pageId="5" pageNumber="1050">n</emphasis>
)
</th>
</tr>
<tr id="ACD521454F5562C1FFD4FBC9FBF2BA32" box="[125,1084,1087,1106]" gridrow="1" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FBC9FE31BA32" box="[125,511,1087,1106]" gridcol="0" gridrow="1" pageId="5" pageNumber="1050">Diameter of hydrorhiza (mm)</td>
<td id="EF0448394F5562C1FCB4FBC9FBF2BA32" box="[797,1084,1087,1106]" gridcol="1" gridrow="1" pageId="5" pageNumber="1050">0.09–0.11</td>
</tr>
<tr id="ACD521454F5562C1FFD4FBAFFBF2BA0D" box="[125,1084,1113,1133]" gridrow="2" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FBAFFE31BA0D" box="[125,511,1113,1133]" gridcol="0" gridrow="2" pageId="5" pageNumber="1050">Diameter of pedicel base (mm)</td>
<td id="EF0448394F5562C1FCB4FBAFFBF2BA0D" box="[797,1084,1113,1133]" gridcol="1" gridrow="2" pageId="5" pageNumber="1050">0.11¡0.01 (0.10–0.12) (10)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FB85FBF2BAE7" box="[125,1084,1139,1159]" gridrow="3" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FB85FE31BAE7" box="[125,511,1139,1159]" gridcol="0" gridrow="3" pageId="5" pageNumber="1050">Diameter of pedicel distal (mm)</td>
<td id="EF0448394F5562C1FCB4FB85FBF2BAE7" box="[797,1084,1139,1159]" gridcol="1" gridrow="3" pageId="5" pageNumber="1050">0.12¡0.01 (0.11–0.13) (10)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FB78FBF2BAC1" box="[125,1084,1166,1185]" gridrow="4" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FB78FE31BAC1" box="[125,511,1166,1185]" gridcol="0" gridrow="4" pageId="5" pageNumber="1050">Number of annulations</td>
<td id="EF0448394F5562C1FCB4FB78FBF2BAC1" box="[797,1084,1166,1185]" gridcol="1" gridrow="4" pageId="5" pageNumber="1050">3–6</td>
</tr>
<tr id="ACD521454F5562C1FFD4FB5EFBF2BADC" box="[125,1084,1192,1212]" gridrow="5" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FB5EFE31BADC" box="[125,511,1192,1212]" gridcol="0" gridrow="5" pageId="5" pageNumber="1050">Length of pedicel (mm)</td>
<td id="EF0448394F5562C1FCB4FB5EFBF2BADC" box="[797,1084,1192,1212]" gridcol="1" gridrow="5" pageId="5" pageNumber="1050">1.91¡1.49 (0.36–4.85) (10)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FB35FBF2BAB7" box="[125,1084,1219,1239]" gridrow="6" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FB35FE31BAB7" box="[125,511,1219,1239]" gridcol="0" gridrow="6" pageId="5" pageNumber="1050">Diameter at diaphragm (mm)</td>
<td id="EF0448394F5562C1FCB4FB35FBF2BAB7" box="[797,1084,1219,1239]" gridcol="1" gridrow="6" pageId="5" pageNumber="1050">0.18¡0.03 (0.11–0.23) (10)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FB2BFBF2BA91" box="[125,1084,1245,1265]" gridrow="7" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FB2BFE31BA91" box="[125,511,1245,1265]" gridcol="0" gridrow="7" pageId="5" pageNumber="1050">Length of hydrothecae (mm)</td>
<td id="EF0448394F5562C1FCB4FB2BFBF2BA91" box="[797,1084,1245,1265]" gridcol="1" gridrow="7" pageId="5" pageNumber="1050">0.93¡0.17 (0.67–1.13) (10)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FB0EFBF2BB6C" box="[125,1084,1272,1292]" gridrow="8" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FB0EFE31BB6C" box="[125,511,1272,1292]" gridcol="0" gridrow="8" pageId="5" pageNumber="1050">Diameter at aperture (mm)</td>
<td id="EF0448394F5562C1FCB4FB0EFBF2BB6C" box="[797,1084,1272,1292]" gridcol="1" gridrow="8" pageId="5" pageNumber="1050">0.30¡0.06 (0.19–0.38) (10)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FAE5FBF2BB46" box="[125,1084,1299,1318]" gridrow="9" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FAE5FE31BB46" box="[125,511,1299,1318]" gridcol="0" gridrow="9" pageId="5" pageNumber="1050">Number of renovations</td>
<td id="EF0448394F5562C1FCB4FAE5FBF2BB46" box="[797,1084,1299,1318]" gridcol="1" gridrow="9" pageId="5" pageNumber="1050">0–13</td>
</tr>
<tr id="ACD521454F5562C1FFD4FADBFBF2BB21" box="[125,1084,1325,1345]" gridrow="10" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FADBFE31BB21" box="[125,511,1325,1345]" gridcol="0" gridrow="10" pageId="5" pageNumber="1050">Length of hydranth (mm)</td>
<td id="EF0448394F5562C1FCB4FADBFBF2BB21" box="[797,1084,1325,1345]" gridcol="1" gridrow="10" pageId="5" pageNumber="1050">0.19¡0.03 (0.15–0.25) (10)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FABEFBF2BB3C" box="[125,1084,1352,1372]" gridrow="11" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FABEFE31BB3C" box="[125,511,1352,1372]" gridcol="0" gridrow="11" pageId="5" pageNumber="1050">Width of hydranth (mm)</td>
<td id="EF0448394F5562C1FCB4FABEFBF2BB3C" box="[797,1084,1352,1372]" gridcol="1" gridrow="11" pageId="5" pageNumber="1050">0.20¡0.02 (0.16–0.22) (10)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FA95FBF2BB16" box="[125,1084,1379,1398]" gridrow="12" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FA95FE31BB16" box="[125,511,1379,1398]" gridcol="0" gridrow="12" pageId="5" pageNumber="1050">Number of tentacles</td>
<td id="EF0448394F5562C1FCB4FA95FBF2BB16" box="[797,1084,1379,1398]" gridcol="1" gridrow="12" pageId="5" pageNumber="1050">12–16</td>
</tr>
<tr id="ACD521454F5562C1FFD4FA8BFBF2BBF1" box="[125,1084,1405,1425]" gridrow="13" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FA8BFE31BBF1" box="[125,511,1405,1425]" gridcol="0" gridrow="13" pageId="5" pageNumber="1050">Length of gonotheca pedicel (mm)</td>
<td id="EF0448394F5562C1FCB4FA8BFBF2BBF1" box="[797,1084,1405,1425]" gridcol="1" gridrow="13" pageId="5" pageNumber="1050">0.12¡0.01 (0.10–0.13) (5)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FA61FBF2BBCB" box="[125,1084,1431,1451]" gridrow="14" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FA61FE31BBCB" box="[125,511,1431,1451]" gridcol="0" gridrow="14" pageId="5" pageNumber="1050">Width of gonotheca pedicel (mm)</td>
<td id="EF0448394F5562C1FCB4FA61FBF2BBCB" box="[797,1084,1431,1451]" gridcol="1" gridrow="14" pageId="5" pageNumber="1050">0.12¡0.01 (0.10–0.13) (5)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FA44FBF2BBA6" box="[125,1084,1458,1478]" gridrow="15" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FA44FE31BBA6" box="[125,511,1458,1478]" gridcol="0" gridrow="15" pageId="5" pageNumber="1050">Length of gonotheca (mm)</td>
<td id="EF0448394F5562C1FCB4FA44FBF2BBA6" box="[797,1084,1458,1478]" gridcol="1" gridrow="15" pageId="5" pageNumber="1050">3.06¡0.37 (2.50–3.42) (5)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FA3BFBF2BB81" box="[125,1084,1485,1505]" gridrow="16" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FA3BFE31BB81" box="[125,511,1485,1505]" gridcol="0" gridrow="16" pageId="5" pageNumber="1050">Width of gonotheca (mm)</td>
<td id="EF0448394F5562C1FCB4FA3BFBF2BB81" box="[797,1084,1485,1505]" gridcol="1" gridrow="16" pageId="5" pageNumber="1050">0.46¡0.05 (0.40–0.53) (5)</td>
</tr>
<tr id="ACD521454F5562C1FFD4FA1EFBF2BB9B" box="[125,1084,1512,1531]" gridrow="17" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4FA1EFE31BB9B" box="[125,511,1512,1531]" gridcol="0" gridrow="17" pageId="5" pageNumber="1050">Length of medusa bud (mm)</td>
<td id="EF0448394F5562C1FCB4FA1EFBF2BB9B" box="[797,1084,1512,1531]" gridcol="1" gridrow="17" pageId="5" pageNumber="1050">1.32 (1)</td>
</tr>
<tr id="ACD521454F5562C1FFD4F9F4FBF2B875" box="[125,1084,1538,1557]" gridrow="18" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4F9F4FE31B875" box="[125,511,1538,1557]" gridcol="0" gridrow="18" pageId="5" pageNumber="1050">Width of medusa bud (mm)</td>
<td id="EF0448394F5562C1FCB4F9F4FBF2B875" box="[797,1084,1538,1557]" gridcol="1" gridrow="18" pageId="5" pageNumber="1050">0.65 (1)</td>
</tr>
<tr id="ACD521454F5562C1FFD4F9EBFBF2B850" box="[125,1084,1565,1584]" gridrow="19" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4F9EBFE31B850" box="[125,511,1565,1584]" gridcol="0" gridrow="19" pageId="5" pageNumber="1050">Length of manubrium (mm)</td>
<td id="EF0448394F5562C1FCB4F9EBFBF2B850" box="[797,1084,1565,1584]" gridcol="1" gridrow="19" pageId="5" pageNumber="1050">0.50 (1)</td>
</tr>
<tr id="ACD521454F5562C1FFD4F9CEFBF2B82B" box="[125,1084,1592,1611]" gridrow="20" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4F9CEFE31B82B" box="[125,511,1592,1611]" gridcol="0" gridrow="20" pageId="5" pageNumber="1050">Width of manubrium (mm)</td>
<td id="EF0448394F5562C1FCB4F9CEFBF2B82B" box="[797,1084,1592,1611]" gridcol="1" gridrow="20" pageId="5" pageNumber="1050">0.12 (1)</td>
</tr>
<tr id="ACD521454F5562C1FFD4F9A7FBF2B805" box="[125,1084,1617,1637]" gridrow="21" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4F9A7FE31B805" box="[125,511,1617,1637]" gridcol="0" gridrow="21" pageId="5" pageNumber="1050">Heterotrichous microbasic mastigophores</td>
<td id="EF0448394F5562C1FCB4F9A7FBF2B805" box="[797,1084,1617,1637]" gridcol="1" gridrow="21" pageId="5" pageNumber="1050">7.40¡0.46X2.30¡0.35 (10)</td>
</tr>
<tr id="ACD521454F5562C1FFD4F99AFBF2B8E0" box="[125,1084,1644,1664]" gridrow="22" pageId="5" pageNumber="1050">
<td id="EF0448394F5562C1FFD4F99AFE31B8E0" box="[125,511,1644,1664]" gridcol="0" gridrow="22" pageId="5" pageNumber="1050">Heterotrichous?macrobasic euryteles</td>
<td id="EF0448394F5562C1FCB4F99AFBF2B8E0" box="[797,1084,1644,1664]" gridcol="1" gridrow="22" pageId="5" pageNumber="1050">11.35¡0.71X4.90¡0.39 (10)</td>
</tr>
</table>
</paragraph>
<caption id="469A738F4F569D38FF23F9BFFD91B8F2" ID-DOI="http://doi.org/10.5281/zenodo.4581815" ID-Zenodo-Dep="4581815" httpUri="https://zenodo.org/record/4581815/files/figure.png" pageId="6" pageNumber="1051" startId="6.[138,198,1609,1628]" targetBox="[9,1179,135,1573]" targetPageId="6">
<paragraph id="125A23074F569D38FF23F9BFFD91B8F2" blockId="6.[138,1185,1609,1682]" pageId="6" pageNumber="1051">
Figure 1.
<taxonomicName id="D5E558844F569D38FF41F9BFFDD4B83C" authority="Kramp, 1932" authorityName="Kramp" authorityYear="1932" box="[232,538,1609,1628]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="6" pageNumber="1051" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F569D38FF41F9BFFE58B83C" box="[232,406,1609,1628]" italics="true" pageId="6" pageNumber="1051">Halisiphonia arctica</emphasis>
<bibRefCitation id="76745EF64F569D38FE32F9BFFDD4B83C" author="Kramp PL" box="[411,538,1609,1628]" pageId="6" pageNumber="1051" pagination="1 - 86" refId="ref7522" refString="Kramp PL. 1932. The Godthaab Expedition 1928. Hydroids. Meddelelser om GrOnland 79 (1): 1 - 86, Figures 1 - 34." type="journal article" year="1932">Kramp, 1932</bibRefCitation>
</taxonomicName>
. (A) Hydrotheca, lateral view; (B) portion of a colony; (C) hydrothecal diaphragm; (D) base of hydrotheca showing desmocytes; (E) gonothecae, lateral view. Scale bars: 200 Mm (A); 1.0 mm (B); 25 Mm (C); 100 Mm (D); 500 Mm (E).
</paragraph>
</caption>
<paragraph id="125A23074F579D39FF31FEFEFE41BF1F" blockId="7.[125,1173,136,383]" pageId="7" pageNumber="1052">Nematocysts of two categories. Heterotrichous microbasic mastigophores (seen discharged), 7.0–8.0X2.0–3.0 Mm, rice grain-shaped, common, ratio shaft/capsule51:1. Heterotrichous?macrobasic euryteles (not seen discharged), 10.0–12.5X4.0–5.5 Mm, bean-shaped, common.</paragraph>
<paragraph id="125A23074F579D39FFD4FE5CFF12BFA2" blockId="7.[125,1173,426,1135]" box="[125,220,426,450]" pageId="7" pageNumber="1052">
<emphasis id="2091FF154F579D39FFD4FE5CFF12BFA2" box="[125,220,426,450]" italics="true" pageId="7" pageNumber="1052">Remarks</emphasis>
</paragraph>
<paragraph id="125A23074F579D39FFD4FE2FFB5ABC51" blockId="7.[125,1173,426,1135]" pageId="7" pageNumber="1052">
<taxonomicName id="D5E558844F579D39FFD4FE2FFEAFBF91" authorityName="Kramp" authorityYear="1932" box="[125,353,473,497]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F579D39FFD4FE2FFEAFBF91" box="[125,353,473,497]" italics="true" pageId="7" pageNumber="1052">Halisiphonia arctica</emphasis>
</taxonomicName>
has not been recorded again since its original description from
<collectingCountry id="6AF263974F579D39FFD4FE0FFF32BC71" box="[125,252,505,529]" name="Greenland" pageId="7" pageNumber="1052">Greenland</collectingCountry>
. The species was considered similar to
<taxonomicName id="D5E558844F579D39FD13FE0CFCACBC71" authorityName="Allman" authorityYear="1888" box="[698,866,505,529]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="megalotheca">
<emphasis id="2091FF154F579D39FD13FE0CFCACBC71" box="[698,866,505,529]" italics="true" pageId="7" pageNumber="1052">H. megalotheca</emphasis>
</taxonomicName>
by
<bibRefCitation id="76745EF64F579D39FC23FE0FFB96BC71" author="Schuchert P" box="[906,1112,505,529]" pageId="7" pageNumber="1052" pagination="1 - 184" refId="ref8267" refString="Schuchert P. 2001. Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa). Meddelelser om GrOnland, Bioscience 53: 1 - 184, Figures 1 - 138, Appendices 1 - 3." type="journal article" year="2001">Schuchert (2001)</bibRefCitation>
, who notes that the only difference between them is the more elongate hydrotheca of
<taxonomicName id="D5E558844F579D39FBB7FDECFB42BC51" authorityName="Kramp" authorityYear="1932" box="[1054,1164,537,561]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F579D39FBB7FDECFB42BC51" box="[1054,1164,537,561]" italics="true" pageId="7" pageNumber="1052">H. arctica</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="125A23074F579D39FF31FDCFFD3DBD30" blockId="7.[125,1173,426,1135]" pageId="7" pageNumber="1052">
However, concerning gross morphology,
<taxonomicName id="D5E558844F579D39FDD8FDCCFD10BC31" authorityName="Kramp" authorityYear="1932" box="[625,734,569,593]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F579D39FDD8FDCCFD10BC31" box="[625,734,569,593]" italics="true" pageId="7" pageNumber="1052">H. arctica</emphasis>
</taxonomicName>
is distinguished from its congeners by the combination of two characters: everted margin and annulated pedicels.
<taxonomicName id="D5E558844F579D39FBA0FDAFFECEBCF1" authorityName="Allman" authorityYear="1888" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="megalotheca">
<emphasis id="2091FF154F579D39FBA0FDAFFECEBCF1" italics="true" pageId="7" pageNumber="1052">Halisiphonia megalotheca</emphasis>
</taxonomicName>
and
<taxonomicName id="D5E558844F579D39FEEFFD8FFE67BCF0" authorityName="Stechow" authorityYear="1921" box="[326,425,633,656]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="nana">
<emphasis id="2091FF154F579D39FEEFFD8FFE67BCF0" box="[326,425,633,656]" italics="true" pageId="7" pageNumber="1052">H. nana</emphasis>
</taxonomicName>
have everted margins but both lack annuli in their pedicels.
<taxonomicName id="D5E558844F579D39FFD4FD6FFE96BCD1" authorityName="Kramp" authorityYear="1932" box="[125,344,665,689]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F579D39FFD4FD6FFE96BCD1" box="[125,344,665,689]" italics="true" pageId="7" pageNumber="1052">Halisiphonia arctica</emphasis>
</taxonomicName>
differs from
<taxonomicName id="D5E558844F579D39FE46FD6FFDB5BCD1" authorityName="Kramp" authorityYear="1956" box="[495,635,665,689]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="galatheae">
<emphasis id="2091FF154F579D39FE46FD6FFDB5BCD1" box="[495,635,665,689]" italics="true" pageId="7" pageNumber="1052">H. galatheae</emphasis>
</taxonomicName>
, with which it shares the presence of annuli in the pedicel, by having everted hydrothecal margin.
<taxonomicName id="D5E558844F579D39FD6EFD4FFC6CBCB1" authorityName="Kramp" authorityYear="1932" box="[711,930,697,721]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F579D39FD6EFD4FFC6CBCB1" box="[711,930,697,721]" italics="true" pageId="7" pageNumber="1052">Halisiphonia arctica</emphasis>
</taxonomicName>
also shows twice (up to 13) as many renovations as
<taxonomicName id="D5E558844F579D39FE7EFD2FFDACBC90" authorityName="Kramp" authorityYear="1956" box="[471,610,728,752]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="galatheae">
<emphasis id="2091FF154F579D39FE7EFD2FFDACBC90" box="[471,610,728,752]" italics="true" pageId="7" pageNumber="1052">H. galatheae</emphasis>
</taxonomicName>
(up to six) and
<taxonomicName id="D5E558844F579D39FCBEFD2FFCBABC90" authorityName="Stechow" authorityYear="1921" box="[791,884,729,752]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="nana">
<emphasis id="2091FF154F579D39FCBEFD2FFCBABC90" box="[791,884,729,752]" italics="true" pageId="7" pageNumber="1052">H. nana</emphasis>
</taxonomicName>
(up to six), although this may be a variable character. The process of hydranth regeneration of
<taxonomicName id="D5E558844F579D39FC05FD0FFBD4BD70" authorityName="Kramp" authorityYear="1932" box="[940,1050,760,784]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F579D39FC05FD0FFBD4BD70" box="[940,1050,760,784]" italics="true" pageId="7" pageNumber="1052">H. arctica</emphasis>
</taxonomicName>
leaves the scars of the old diaphragms, as described and illustrated by
<bibRefCitation id="76745EF64F579D39FC8DFCEEFC0ABD50" author="Kramp PL" box="[804,964,792,816]" pageId="7" pageNumber="1052" pagination="1 - 86" refId="ref7522" refString="Kramp PL. 1932. The Godthaab Expedition 1928. Hydroids. Meddelelser om GrOnland 79 (1): 1 - 86, Figures 1 - 34." type="journal article" year="1932">Kramp (1932</bibRefCitation>
, p 39, Figures 18– 20), a unique feature among the species of the genus.
</paragraph>
<paragraph id="125A23074F579D39FF31FCAEFB5ABA0F" blockId="7.[125,1173,426,1135]" pageId="7" pageNumber="1052">
The medusa of
<taxonomicName id="D5E558844F579D39FEFCFCAFFE0BBD10" authorityName="Kramp" authorityYear="1932" box="[341,453,856,880]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F579D39FEFCFCAFFE0BBD10" box="[341,453,856,880]" italics="true" pageId="7" pageNumber="1052">H. arctica</emphasis>
</taxonomicName>
was previously reported by
<bibRefCitation id="76745EF64F579D39FCBDFCAEFC15BD10" author="Schuchert P" box="[788,987,856,880]" pageId="7" pageNumber="1052" pagination="1 - 184" refId="ref8267" refString="Schuchert P. 2001. Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa). Meddelelser om GrOnland, Bioscience 53: 1 - 184, Figures 1 - 138, Appendices 1 - 3." type="journal article" year="2001">Schuchert (2001</bibRefCitation>
, p 61) from the
<typeStatus id="CD5E9DA54F579D39FFD4FC8EFF2BBDF0" box="[125,229,888,912]" pageId="7" pageNumber="1052" type="holotype">holotype</typeStatus>
, the same material being described here. Besides the presence of medusae suggesting affinities with
<taxonomicName id="D5E558844F579D39FE09FC6EFD07BDD0" authority="(Schuchert 2001)" baseAuthorityName="Schuchert" baseAuthorityYear="2001" box="[416,713,920,944]" class="Hydrozoa" family="Hebellidae" genus="Hebella" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="genus">
<emphasis id="2091FF154F579D39FE09FC6EFE3FBDD0" box="[416,497,920,944]" italics="true" pageId="7" pageNumber="1052">Hebella</emphasis>
(
<bibRefCitation id="76745EF64F579D39FDA8FC6EFD71BDD0" author="Schuchert P" box="[513,703,920,944]" pageId="7" pageNumber="1052" pagination="1 - 184" refId="ref8267" refString="Schuchert P. 2001. Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa). Meddelelser om GrOnland, Bioscience 53: 1 - 184, Figures 1 - 138, Appendices 1 - 3." type="journal article" year="2001">Schuchert 2001</bibRefCitation>
)
</taxonomicName>
, the morphology of the medusa buds of
<taxonomicName id="D5E558844F579D39FFD4FC4EFF3EBDB0" authorityName="Kramp" authorityYear="1932" box="[125,240,952,976]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="arctica">
<emphasis id="2091FF154F579D39FFD4FC4EFF3EBDB0" box="[125,240,952,976]" italics="true" pageId="7" pageNumber="1052">H. arctica</emphasis>
</taxonomicName>
, in some aspects (umbrella tall, four tentacles with large bulbs, manubrium cylindrical) comparable to the newly liberated medusae of
<taxonomicName id="D5E558844F579D39FC92FC21FB5ABD8F" authority="(Bale, 1888)" baseAuthorityName="Bale" baseAuthorityYear="1888" box="[827,1172,983,1007]" class="Hydrozoa" family="Hebellidae" genus="Hebella" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="scandens">
<emphasis id="2091FF154F579D39FC92FC21FC3BBD8F" box="[827,1013,983,1007]" italics="true" pageId="7" pageNumber="1052">Hebella scandens</emphasis>
(
<bibRefCitation id="76745EF64F579D39FBA1FC21FB45BD8F" author="Bale WM" box="[1032,1163,983,1007]" pageId="7" pageNumber="1052" pagination="745 - 799" refId="ref7099" refString="Bale WM. 1888. On some new and rare Hydroida in the Australian Museum collection. Proceedings of the Linnean Society of New South Wales (Series 2) 3: 745 - 799, Plates 12 - 21." type="journal article" year="1888">Bale, 1888</bibRefCitation>
)
</taxonomicName>
and
<taxonomicName id="D5E558844F579D39FF1AFC01FE39BA6F" authority="Millard, 1957" authorityName="Millard" authorityYear="1957" box="[179,503,1015,1039]" class="Hydrozoa" family="Hebellidae" genus="Hebella" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="species" species="furax">
<emphasis id="2091FF154F579D39FF1AFC01FE86BA6F" box="[179,328,1015,1039]" italics="true" pageId="7" pageNumber="1052">Hebella furax</emphasis>
<bibRefCitation id="76745EF64F579D39FEFAFC01FE39BA6F" author="Millard NAH" box="[339,503,1015,1039]" pageId="7" pageNumber="1052" pagination="173 - 243" refId="ref7974" refString="Millard NAH. 1957. The Hydrozoa of False Bay, South Africa. Annals of South African Museum 43: 173 - 243." type="journal article" year="1957">Millard, 1957</bibRefCitation>
</taxonomicName>
(see
<bibRefCitation id="76745EF64F579D39FD90FC01FC4DBA6F" author="Andrade LP de &amp; Migotto AE" box="[569,899,1015,1039]" pageId="7" pageNumber="1052" pagination="35 - 36" refId="ref7049" refString="Andrade LP de, Migotto AE. 1997. Is there a link between Hebella hydroids (Hydrozoa, Lafoeidae) and Staurodiscus medusae (Hydrozoa, Laodiceidae)? Resumos Expandidos do VII COLACMAR-Congresso Latino-Americano sobre Ciencias do Mar, Santos, SP 1: 35 - 36." type="journal article" year="1997">Andrade and Migotto 1997</bibRefCitation>
;
<bibRefCitation id="76745EF64F579D39FC3BFC01FF75BA4F" author="Migotto AE &amp; Andrade LP de" pageId="7" pageNumber="1052" pagination="1871 - 1888" refId="ref7932" refString="Migotto AE, Andrade LP de. 2000. The life cycle of Hebella furax (Cnidaria: Hydrozoa): a link between a lafoeid hydroid and a laodiceid medusa. Journal of Natural History 34: 1871 - 1888." type="journal article" year="2000">Migotto and Andrade 2000</bibRefCitation>
, respectively), indicates affinities between
<taxonomicName id="D5E558844F579D39FD06FBE1FCF4BA4F" authorityName="Allman" authorityYear="1888" box="[687,826,1047,1071]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="genus">
<emphasis id="2091FF154F579D39FD06FBE1FCF4BA4F" box="[687,826,1047,1071]" italics="true" pageId="7" pageNumber="1052">Halisiphonia</emphasis>
</taxonomicName>
and
<taxonomicName id="D5E558844F579D39FCD1FBE1FC07BA4F" baseAuthorityName="Schuchert" baseAuthorityYear="2001" box="[888,969,1047,1071]" class="Hydrozoa" family="Hebellidae" genus="Hebella" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="genus">
<emphasis id="2091FF154F579D39FCD1FBE1FC07BA4F" box="[888,969,1047,1071]" italics="true" pageId="7" pageNumber="1052">Hebella</emphasis>
</taxonomicName>
. Moreover, once this stage becomes better known, there could be a drastic modification on the classification of
<taxonomicName id="D5E558844F579D39FF35FBA1FEE6BA0F" authorityName="Allman" authorityYear="1888" box="[156,296,1111,1135]" class="Hydrozoa" family="Hebellidae" genus="Halisiphonia" kingdom="Animalia" order="Leptothecata" pageId="7" pageNumber="1052" phylum="Cnidaria" rank="genus">
<emphasis id="2091FF154F579D39FF35FBA1FEE6BA0F" box="[156,296,1111,1135]" italics="true" pageId="7" pageNumber="1052">Halisiphonia</emphasis>
</taxonomicName>
, and the genus might even fall into synonymy with a medusa-based genus.
</paragraph>
<paragraph id="125A23074F579D39FFD4FB62FF33BACC" blockId="7.[125,253,1172,1196]" box="[125,253,1172,1196]" pageId="7" pageNumber="1052">
<emphasis id="2091FF154F579D39FFD4FB62FF33BACC" box="[125,253,1172,1196]" italics="true" pageId="7" pageNumber="1052">Distribution</emphasis>
</paragraph>
<paragraph id="125A23074F579D39FFD4FB32FC4BBABC" blockId="7.[125,901,1220,1244]" box="[125,901,1220,1244]" pageId="7" pageNumber="1052">
The species is only known for
<collectingCountry id="6AF263974F579D39FE4CFB32FDADBABC" box="[485,611,1220,1244]" name="Greenland" pageId="7" pageNumber="1052">Greenland</collectingCountry>
, at the depth of
<quantity id="D51D8EE24F579D39FC8EFB32FC4FBABC" box="[807,897,1220,1244]" metricMagnitude="3" metricUnit="m" metricValue="1.2" pageId="7" pageNumber="1052" unit="m" value="1200.0">1200 m</quantity>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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