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<document id="80F43FB72B0AFCF635D5F82A65558F33" ID-DOI="10.11646/zootaxa.4052.4.1" ID-GBIF-Dataset="93f6d085-8e63-4d1e-89c1-f950128b2a61" ID-ISSN="1175-5326" ID-Zenodo-Dep="245887" ID-ZooBank="47EF6E9D-9064-4899-B3DD-276FF7C969EB" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461351539127" checkinUser="plazi" docAuthor="Molinero, A. González &amp; Peña Cantero, A. L." docDate="2015" docId="03C287C6281E7C03D4F489E72D667FEF" docLanguage="en" docName="zt04052p441.pdf" docOrigin="Zootaxa 4052 (4)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Oswaldella" docType="treatment" docVersion="10" lastPageNumber="422" masterDocId="FFFBFFBE280B7C16D4638A112C127859" masterDocTitle="SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus" masterLastPageNumber="441" masterPageNumber="401" pageNumber="422" updateTime="1698622027685" updateUser="plazi">
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<mods:title id="4FD7BE519A7359BF0B6983FD8DEA0C3C">SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus</mods:title>
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<mods:namePart id="BF65953F3A9925103A9384652CEA6D65">Molinero, A. González</mods:namePart>
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<treatment id="03C287C6281E7C03D4F489E72D667FEF" ID-DOI="http://doi.org/10.5281/zenodo.6107486" ID-GBIF-Taxon="119646479" ID-Zenodo-Dep="6107486" LSID="urn:lsid:plazi:treatment:03C287C6281E7C03D4F489E72D667FEF" httpUri="http://treatment.plazi.org/id/03C287C6281E7C03D4F489E72D667FEF" lastPageNumber="422" pageId="21" pageNumber="422">
<subSubSection id="C371655B281E7C03D4F489E72DA27C6B" pageId="21" pageNumber="422" type="nomenclature">
<paragraph id="8BD436D0281E7C03D4F489E72D557C49" blockId="21.[151,432,1014,1074]" box="[151,327,1014,1040]" pageId="21" pageNumber="422">
<heading id="D09C81BC281E7C03D4F489E72D557C49" bold="true" box="[151,327,1014,1040]" fontSize="11" level="1" pageId="21" pageNumber="422" reason="1">
<emphasis id="B91FEAC2281E7C03D4F489E72D557C49" bold="true" box="[151,327,1014,1040]" pageId="21" pageNumber="422">
<taxonomicName id="4C6B4D53281E7C03D4F489E72D0F7C49" ID-CoL="7PR88" box="[151,285,1014,1040]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="21" pageNumber="422" phylum="Cnidaria" rank="genus">
<emphasis id="B91FEAC2281E7C03D4F489E72D0F7C49" bold="true" box="[151,285,1014,1040]" italics="true" pageId="21" pageNumber="422">Oswaldella</emphasis>
</taxonomicName>
sp.
</emphasis>
</heading>
</paragraph>
<paragraph id="8BD436D0281E7C03D4F48E082DA27C6B" blockId="21.[151,432,1014,1074]" box="[151,432,1049,1074]" pageId="21" pageNumber="422">
(
<figureCitation id="13502A55281E7C03D4FC8E082CE77C6B" box="[159,245,1049,1074]" captionStart="FIGURE 15" captionStartId="23.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@23.[239,1347,193,1924]" captionTargetPageId="23" captionText="FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B D) and 20 µm (E)." httpUri="https://zenodo.org/record/245902/files/figure.png" pageId="21" pageNumber="422">Figs 15</figureCitation>
,
<figureCitation id="13502A55281E7C03D5628E082D0E7C6B" box="[257,284,1049,1074]" captionStart="FIGURE 16" captionStartId="25.[151,250,1902,1924]" captionTargetBox="[253,1333,193,1880]" captionTargetId="figure@25.[253,1333,193,1881]" captionTargetPageId="25" captionText="FIGURE 16. Detail of the area from which mesial nematophore emerges. A, Oswaldella bifurca; B, Oswaldella delicata; C, Oswaldella elongata; D, Oswaldella erratum; E, Oswaldella frigida; F, Oswaldella garciacarrascosai; G, Oswaldella grandis; H, Oswaldella incognita; I, Oswaldella laertesi; J, Oswaldella niobae; K, Oswaldella rigida; L, Oswaldella shetlandica; M, Oswaldella stepanjantsae; N, Oswaldella vervoorti; O, Oswaldella sp. Scale bar: 20 µm (A O)." httpUri="https://zenodo.org/record/245903/files/figure.png" pageId="21" pageNumber="422">16</figureCitation>
P, 18H, 20H)
</paragraph>
</subSubSection>
<subSubSection id="C371655B281E7C03D4F48E70289A7CC4" pageId="21" pageNumber="422" type="materials_examined">
<paragraph id="8BD436D0281E7C03D4F48E70289A7CC4" blockId="21.[151,1437,1121,1974]" pageId="21" pageNumber="422">
<emphasis id="B91FEAC2281E7C03D4F48E702D9A7C23" bold="true" box="[151,392,1121,1146]" pageId="21" pageNumber="422">Material examined.</emphasis>
<collectingCountry id="F37C7640281E7C03D5F58E732E267C23" box="[406,564,1121,1146]" name="New Zealand" pageId="21" pageNumber="422">New Zealand</collectingCountry>
<collectingCountry id="F37C7640281E7C03D6208E702EB97C23" box="[579,683,1121,1146]" name="Antarctica" pageId="21" pageNumber="422">Antarctic</collectingCountry>
Expedition TAN0402:
<emphasis id="B91FEAC2281E7C03D7AA8E70283A7C23" bold="true" box="[969,1064,1121,1146]" pageId="21" pageNumber="422">Stn 178</emphasis>
,
<taxonomicName id="4C6B4D53281E7C03D05D8E7328BB7C20" box="[1086,1193,1122,1145]" class="Arachnida" family="Uloboridae" genus="Tangaroa" kingdom="Animalia" order="Araneae" pageId="21" pageNumber="422" phylum="Arthropoda" rank="genus">
<emphasis id="B91FEAC2281E7C03D05D8E7328BB7C20" box="[1086,1193,1122,1145]" italics="true" pageId="21" pageNumber="422">Tangaroa</emphasis>
</taxonomicName>
,
<date id="FFD51010281E7C03D0DD8E73298A7C23" box="[1214,1432,1121,1146]" pageId="21" pageNumber="422" value="2004-02-27">27 February 2004</date>
, 71°3189
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, 171°1831
<geoCoordinate id="EE5F5017281E7C03D62B8E972EF37CC7" box="[584,737,1158,1182]" direction="east" orientation="longitude" pageId="21" pageNumber="422" precision="15" value="171.31944">171°1870E</geoCoordinate>
(Cape Adare, Ross Sea),
<quantity id="4C939B35281E7C03D0618E9728967CC4" box="[1026,1156,1158,1182]" metricMagnitude="2" metricUnit="m" metricValue="3.4549999999999996" metricValueMax="3.4799999999999995" metricValueMin="3.4299999999999997" pageId="21" pageNumber="422" unit="m" value="345.5" valueMax="348.0" valueMin="343.0">
343
<specimenCount id="9D6DFD59281E7C03D0598E9728967CC4" box="[1082,1156,1158,1182]" pageId="21" pageNumber="422" type="generic">348 m</specimenCount>
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.
</paragraph>
</subSubSection>
<subSubSection id="C371655B281E7C03D4A48EB82DD17E5F" pageId="21" pageNumber="422" type="description">
<paragraph id="8BD436D0281E7C03D4A48EB8291F7CBF" blockId="21.[151,1437,1121,1974]" pageId="21" pageNumber="422">
<emphasis id="B91FEAC2281E7C03D4A48EB82D4B7C9B" bold="true" box="[199,345,1193,1218]" pageId="21" pageNumber="422">Description.</emphasis>
Monosiphonic, unbranched stems, up to
<quantity id="4C939B35281E7C03D73F8EBB2FD07C98" box="[860,962,1194,1218]" metricMagnitude="-1" metricUnit="m" metricValue="1.0" pageId="21" pageNumber="422" unit="mm" value="100.0">100 mm</quantity>
high, divided into internodes. Cauline apophyses with two axillary nematophores, each emerging through simple hole in perisarc (
<figureCitation id="13502A55281E7C03D0F98EDC28FE7CBF" box="[1178,1260,1229,1254]" captionStart="FIGURE 15" captionStartId="23.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@23.[239,1347,193,1924]" captionTargetPageId="23" captionText="FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B D) and 20 µm (E)." httpUri="https://zenodo.org/record/245902/files/figure.png" pageId="21" pageNumber="422">Fig. 15</figureCitation>
B).
</paragraph>
<paragraph id="8BD436D0281E7C03D4A48EE02CC17DB8" blockId="21.[151,1437,1121,1974]" pageId="21" pageNumber="422">
Hydrocladia usually bifurcated, first hydrocladial internode giving rise to two secondary hydrocladia; however, a third-order hydrocladium is not uncommon (
<figureCitation id="13502A55281E7C03D7438F042F617D77" box="[800,883,1301,1326]" captionStart="FIGURE 15" captionStartId="23.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@23.[239,1347,193,1924]" captionTargetPageId="23" captionText="FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B D) and 20 µm (E)." httpUri="https://zenodo.org/record/245902/files/figure.png" pageId="21" pageNumber="422">Fig. 15</figureCitation>
A). First hydrocladial internode bifurcated, with two similar prongs (
<figureCitation id="13502A55281E7C03D51E8F282DDD7D0B" box="[381,463,1337,1362]" captionStart="FIGURE 15" captionStartId="23.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@23.[239,1347,193,1924]" captionTargetPageId="23" captionText="FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B D) and 20 µm (E)." httpUri="https://zenodo.org/record/245902/files/figure.png" pageId="21" pageNumber="422">Fig. 15</figureCitation>
A). Mesial inferior nematophore emerging from marked swelling at proximal third of internode (
<figureCitation id="13502A55281E7C03D5738F4C2D737D2F" box="[272,353,1373,1398]" captionStart="FIGURE 15" captionStartId="23.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@23.[239,1347,193,1924]" captionTargetPageId="23" captionText="FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B D) and 20 µm (E)." httpUri="https://zenodo.org/record/245902/files/figure.png" pageId="21" pageNumber="422">Fig. 15</figureCitation>
C); with well-developed, claw-shaped nematotheca (
<figureCitation id="13502A55281E7C03D7CD8F4C2FEF7D2F" box="[942,1021,1373,1398]" captionStart="FIGURE 15" captionStartId="23.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@23.[239,1347,193,1924]" captionTargetPageId="23" captionText="FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B D) and 20 µm (E)." httpUri="https://zenodo.org/record/245902/files/figure.png" pageId="21" pageNumber="422">Fig. 15</figureCitation>
CE). Hydrotheca low, about as high as wide, placed on distal half of internode. Abcauline wall straight; adcauline one mostly adnate (
<figureCitation id="13502A55281E7C03D1478F9029687DC3" box="[1316,1402,1409,1434]" captionStart="FIGURE 15" captionStartId="23.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@23.[239,1347,193,1924]" captionTargetPageId="23" captionText="FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B D) and 20 µm (E)." httpUri="https://zenodo.org/record/245902/files/figure.png" pageId="21" pageNumber="422">Fig. 15</figureCitation>
C). Hydrothecal aperture circular (
<figureCitation id="13502A55281E7C03D5968FB42E557DE7" box="[501,583,1445,1470]" captionStart="FIGURE 15" captionStartId="23.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@23.[239,1347,193,1924]" captionTargetPageId="23" captionText="FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B D) and 20 µm (E)." httpUri="https://zenodo.org/record/245902/files/figure.png" pageId="21" pageNumber="422">Fig. 15</figureCitation>
D), roughly perpendicular to longitudinal axis of internode (
<figureCitation id="13502A55281E7C03D0948FB429587DE7" box="[1271,1354,1445,1470]" captionStart="FIGURE 15" captionStartId="23.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@23.[239,1347,193,1924]" captionTargetPageId="23" captionText="FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B D) and 20 µm (E)." httpUri="https://zenodo.org/record/245902/files/figure.png" pageId="21" pageNumber="422">Fig. 15</figureCitation>
C); rim even.
</paragraph>
<paragraph id="8BD436D0281E7C03D4A48FFC2DD17E5F" blockId="21.[151,1437,1121,1974]" box="[199,451,1517,1542]" pageId="21" pageNumber="422">Gonothecae unknown.</paragraph>
</subSubSection>
<subSubSection id="C371655B281E7C03D4A48C002D667FEF" pageId="21" pageNumber="422" type="discussion">
<paragraph id="8BD436D0281E7C03D4A48C002D667FEF" blockId="21.[151,1437,1121,1974]" pageId="21" pageNumber="422">
<emphasis id="B91FEAC2281E7C03D4A48C002D297E73" bold="true" box="[199,315,1553,1578]" pageId="21" pageNumber="422">Remarks.</emphasis>
Our material is undoubtedly conspecific with the material described as
<taxonomicName id="4C6B4D53281E7C03D01D8C0028EC7E73" box="[1150,1278,1553,1578]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="21" pageNumber="422" phylum="Cnidaria" rank="genus">
<emphasis id="B91FEAC2281E7C03D01D8C0028EC7E73" box="[1150,1278,1553,1578]" italics="true" pageId="21" pageNumber="422">Oswaldella</emphasis>
</taxonomicName>
sp.2 by
<bibRefCitation id="EFFA4B21281E7C03D1068C032DDF7E17" pageId="21" pageNumber="422" refString="Pena Cantero, A. L. &amp; Vervoort, W. (2004) Species of Oswaldella Stechow, 1919 (Cnidaria: Hydrozoa: Kirchenpaueriidae) from US Antarctic expeditions, with the description of three new species. Journal of Natural History, 38, 805 - 861. http: // dx. doi. org / 10.1080 / 0022293021000045154" type="journal article">Peña Cantero &amp; Vervoort (2004)</bibRefCitation>
. It is also morphologically very close to
<taxonomicName id="4C6B4D53281E7C03D7F98C2428997E14" box="[922,1163,1589,1614]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="21" pageNumber="422" phylum="Cnidaria" rank="species" species="incognita">
<emphasis id="B91FEAC2281E7C03D7F98C2428997E14" box="[922,1163,1589,1614]" italics="true" pageId="21" pageNumber="422">Oswaldella incognita</emphasis>
</taxonomicName>
(cf.
<figureCitation id="13502A55281E7C03D0A28C24291A7E17" box="[1217,1288,1589,1614]" captionStart="FIGURE 8" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 8. Oswaldella incognita Peña Cantero, Svoboda &amp; Vervoort, 1997. A, hydrocladial branching and disposition of hydrothecae; B C, cauline apophyses showing axillary nematophores; D E, unforked hydrocladial internodes (D lateral view, E frontal view); F, detail of mesial inferior nematotheca. Scale bar: 200 µm (A), 100 µm (C E) and 20 µm (B F)." httpUri="https://zenodo.org/record/245895/files/figure.png" pageId="21" pageNumber="422">Figs 8</figureCitation>
,
<figureCitation id="13502A55281E7C03D1768C2429217E17" box="[1301,1331,1589,1614]" captionStart="FIGURE 15" captionStartId="23.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1923]" captionTargetId="figure@23.[239,1347,193,1924]" captionTargetPageId="23" captionText="FIGURE 15. Oswaldella sp. A, hydrocladial branching and disposition of hydrothecae; B, cauline apophysis showing axillary nematophores; C D, unforked hydrocladial internodes (C lateral view, D frontal view); E, detail of mesial inferior nematotheca. Scale bar: 400 µm (A), 100 µm (B D) and 20 µm (E)." httpUri="https://zenodo.org/record/245902/files/figure.png" pageId="21" pageNumber="422">15</figureCitation>
), sharing many characteristics with this species (see also
<bibRefCitation id="EFFA4B21281E7C03D6868C4B28747E2B" author="Pena" box="[741,1126,1626,1650]" pageId="21" pageNumber="422" refString="Pena Cantero, A. L. &amp; Vervoort, W. (2004) Species of Oswaldella Stechow, 1919 (Cnidaria: Hydrozoa: Kirchenpaueriidae) from US Antarctic expeditions, with the description of three new species. Journal of Natural History, 38, 805 - 861. http: // dx. doi. org / 10.1080 / 0022293021000045154" type="journal article" year="2004">Peña Cantero &amp; Vervoort 2004</bibRefCitation>
). The number of axillary nematophores, and the absence of 'mamelons', gives to the cauline apophyses of
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<emphasis id="B91FEAC2281E7C03D0148C6C28E47ECF" box="[1143,1270,1661,1686]" italics="true" pageId="21" pageNumber="422">Oswaldella</emphasis>
</taxonomicName>
sp. a similar configuration to that found in
<emphasis id="B91FEAC2281E7C03D5868CB32E6B7EE0" box="[485,633,1698,1721]" italics="true" pageId="21" pageNumber="422">
<taxonomicName id="4C6B4D53281E7C03D5868CB32E667EE0" box="[485,628,1698,1721]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="21" pageNumber="422" phylum="Cnidaria" rank="species" species="incognita">
<collectingCountry id="F37C7640281E7C03D5868CB32DEE7EE0" box="[485,508,1698,1721]" name="Iceland" pageId="21" pageNumber="422">O</collectingCountry>
. incognita
</taxonomicName>
.
</emphasis>
Additionally, they share the presence of mesial inferior nematotheca, as well as the shape of nematothecae and hydrothecae.
<bibRefCitation id="EFFA4B21281E7C03D6948CD7287D7E87" box="[759,1135,1734,1758]" pageId="21" pageNumber="422" refString="Pena Cantero, A. L. &amp; Vervoort, W. (2004) Species of Oswaldella Stechow, 1919 (Cnidaria: Hydrozoa: Kirchenpaueriidae) from US Antarctic expeditions, with the description of three new species. Journal of Natural History, 38, 805 - 861. http: // dx. doi. org / 10.1080 / 0022293021000045154" type="journal article">Peña Cantero &amp; Vervoort (2004)</bibRefCitation>
indicated that
<taxonomicName id="4C6B4D53281E7C03D17F8CD429897E87" box="[1308,1435,1733,1758]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="21" pageNumber="422" phylum="Cnidaria" rank="genus">
<emphasis id="B91FEAC2281E7C03D17F8CD429897E87" box="[1308,1435,1733,1758]" italics="true" pageId="21" pageNumber="422">Oswaldella</emphasis>
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sp.2 has longer hydrocladial internodes and shorter hydrothecae and that they also differ in the fact that only secondary hydrocladia had been described for
<taxonomicName id="4C6B4D53281E7C03D6D28D1F2F527F7C" box="[689,832,1806,1829]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="21" pageNumber="422" phylum="Cnidaria" rank="species" species="incognita">
<emphasis id="B91FEAC2281E7C03D6D28D1F2F527F7C" box="[689,832,1806,1829]" italics="true" pageId="21" pageNumber="422">
<collectingCountry id="F37C7640281E7C03D6D28D1F2EDA7F7C" box="[689,712,1806,1829]" name="Iceland" pageId="21" pageNumber="422">O</collectingCountry>
. incognita
</emphasis>
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.
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, however, studied material of
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. incognita
</emphasis>
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with occasional presence of third-order hydrocladia. In our opinion,
<taxonomicName id="4C6B4D53281E7C03D0A18D2029537F13" box="[1218,1345,1841,1866]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" kingdom="Animalia" order="Leptothecata" pageId="21" pageNumber="422" phylum="Cnidaria" rank="genus">
<emphasis id="B91FEAC2281E7C03D0A18D2029537F13" box="[1218,1345,1841,1866]" italics="true" pageId="21" pageNumber="422">Oswaldella</emphasis>
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sp. and
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<emphasis id="B91FEAC2281E7C03D4F48D442D997F34" box="[151,395,1877,1902]" italics="true" pageId="21" pageNumber="422">Oswaldella incognita</emphasis>
</taxonomicName>
share so many key features they are likely conspecific, though it would be necessary to examine the material studied by
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to confirm that the axillary nematophores do not have nematothecae.
</paragraph>
</subSubSection>
</treatment>
</document>