498 lines
76 KiB
XML
498 lines
76 KiB
XML
<document id="599B854B7FD629555D9D8950715398FF" ID-CLB-Dataset="29057" ID-DOI="10.11646/zootaxa.4457.3.3" ID-GBIF-Dataset="1de8cca0-cd2f-4a31-aaf5-fac570f8cee5" ID-ISSN="1175-5326" ID-Zenodo-Dep="1457897" ID-ZooBank="463BBDB3-CBD9-43E3-9520-CDE336BC10ED" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1539267047488" checkinUser="plazi" docAuthor="Cantero, A. L. Peña & Molinero, A. González" docDate="2018" docId="B646223DFFCAD32DFF24113CFE4F3238" docLanguage="en" docName="zootaxa.4457.3.3.pdf" docOrigin="Zootaxa 4457 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Oswaldella occulta Cantero & Molinero 2018, sp. nov." docType="treatment" docVersion="7" lastPageNumber="412" masterDocId="4A7F5A45FFC0D322FFB3162EFF983468" masterDocTitle="On several species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa), including the description of a new species" masterLastPageNumber="414" masterPageNumber="397" pageNumber="407" updateTime="1698577058480" updateUser="ExternalLinkService">
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<mods:titleInfo id="400F2CB0FE552BB3811EC40D3DBAD439">
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<mods:title id="F0E0E8F6560A64004E150E1DDD8F9161">On several species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa), including the description of a new species</mods:title>
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<mods:name id="DDC275AF6B1B9414544E4581E23B0AB4" type="personal">
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<mods:namePart id="B900FF9F5A9001DB2BF04D0AFB7B6798">Cantero, A. L. Peña</mods:namePart>
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<mods:name id="F5960E1759FEA0CC12964705D3846553" type="personal">
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<mods:roleTerm id="662CCE2A6E771B853DAEDC2C435B7ED7">Author</mods:roleTerm>
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<mods:namePart id="7FA65307741381278E24BB39158706CF">Molinero, A. González</mods:namePart>
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<mods:title id="1865985240D4DCC3245E8EB1FBF47539">Zootaxa</mods:title>
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<mods:part id="8EB4DB998B9A0403449DF48D20FC2414">
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<mods:date id="BC5021378F97A17A1D1784B2162C6ABC">2018</mods:date>
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<mods:number id="35FCF118083ACDD9D9DC856916FB5956">2018-08-09</mods:number>
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<mods:number id="32E8469F58809BE9B571428E52BE4164">4457</mods:number>
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<treatment id="B646223DFFCAD32DFF24113CFE4F3238" ID-DOI="http://doi.org/10.5281/zenodo.5960858" ID-GBIF-Taxon="148692200" ID-Zenodo-Dep="5960858" LSID="urn:lsid:plazi:treatment:B646223DFFCAD32DFF24113CFE4F3238" httpUri="http://treatment.plazi.org/id/B646223DFFCAD32DFF24113CFE4F3238" lastPageId="15" lastPageNumber="412" pageId="10" pageNumber="407">
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<subSubSection id="76F5C0A0FFCAD328FF24113CFE923326" pageId="10" pageNumber="407" type="nomenclature">
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<paragraph id="3E50932BFFCAD328FF24113CFE783345" blockId="10.[151,480,1810,1870]" box="[151,480,1810,1837]" pageId="10" pageNumber="407">
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<heading id="65182447FFCAD328FF24113CFE783345" bold="true" box="[151,480,1810,1837]" fontSize="11" level="1" pageId="10" pageNumber="407" reason="1">
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<emphasis id="0C9B4F39FFCAD328FF24113CFE783345" bold="true" box="[151,480,1810,1837]" pageId="10" pageNumber="407">
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<taxonomicName id="F9EFE8A8FFCAD328FF24113CFEE43344" ID-CoL="75CJK" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[151,380,1810,1836]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="10" pageNumber="407" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
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<emphasis id="0C9B4F39FFCAD328FF24113CFEE43344" bold="true" box="[151,380,1810,1836]" italics="true" pageId="10" pageNumber="407">Oswaldella occulta</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="17A8F242FFCAD328FE31113DFE783345" box="[386,480,1811,1837]" pageId="10" pageNumber="407" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="3E50932BFFCAD328FF24111BFE923326" blockId="10.[151,480,1810,1870]" box="[151,266,1845,1870]" pageId="10" pageNumber="407">
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(
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<figureCitation id="A6D48FAEFFCAD328FF2C111BFE9B3326" box="[159,259,1845,1870]" captionStart-0="FIGURE 7" captionStart-1="FIGURE 8" captionStartId-0="13.[151,250,1945,1967]" captionStartId-1="14.[151,250,1702,1724]" captionTargetBox-0="[239,1347,193,1924]" captionTargetBox-1="[158,1399,198,1677]" captionTargetId-0="figure@13.[239,1347,193,1924]" captionTargetId-1="figure@14.[150,1436,193,1681]" captionTargetPageId-0="13" captionTargetPageId-1="14" captionText-0="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." captionText-1="FIGURE 8. Oswaldella occulta sp. nov. UnfOrked hydrOcladial inTernOdes, wiTh hydrOTheca, mesial superiOr nemaTOphOre and mesial inferiOr nemaTOTheca. Scale bar: 250 µm." httpUri-0="https://zenodo.org/record/1457911/files/figure.png" httpUri-1="https://zenodo.org/record/1457913/files/figure.png" pageId="10" pageNumber="407">Figs 7–8</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="76F5C0A0FFCAD328FF241156FAFF33E6" box="[151,1383,1912,1934]" pageId="10" pageNumber="407" type="description">
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<paragraph id="3E50932BFFCAD328FF241156FAFF33E6" blockId="10.[151,1383,1912,1934]" box="[151,1383,1912,1934]" pageId="10" pageNumber="407">
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<taxonomicName id="F9EFE8A8FFCAD328FF241156FE9333E6" authorityName="Stechow" authorityYear="1919" box="[151,267,1912,1934]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="10" pageNumber="407" phylum="Cnidaria" rank="genus">
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<emphasis id="0C9B4F39FFCAD328FF241156FE9333E6" box="[151,267,1912,1934]" italics="true" pageId="10" pageNumber="407">Oswaldella</emphasis>
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</taxonomicName>
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sp. GOnzález MOlinerO & Peña CanTerO, 2015: 422, figs 15, 16P, 18H, 20H; Peña CanTerO, 2017: 60, fig. 19C.
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</paragraph>
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</subSubSection>
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<subSubSection id="76F5C0A0FFCAD329FF24119BFCD2350D" lastPageId="11" lastPageNumber="408" pageId="10" pageNumber="407" type="materials_examined">
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<paragraph id="3E50932BFFCAD329FF24119BFBB13490" blockId="10.[151,1436,1973,2034]" lastBlockId="11.[151,1437,151,2018]" lastPageId="11" lastPageNumber="408" pageId="10" pageNumber="407">
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<emphasis id="0C9B4F39FFCAD328FF24119BFE1D33A6" bold="true" box="[151,389,1973,1998]" pageId="10" pageNumber="407">Material examined.</emphasis>
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From the type series of
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<taxonomicName id="F9EFE8A8FFCAD328FD1D119BFB1F33A6" authority=": British Antarctic" authorityName="British Antarctic" box="[686,1159,1973,1998]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="10" pageNumber="407" phylum="Cnidaria" rank="species" species="terranovae">
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<emphasis id="0C9B4F39FFCAD328FD1D119BFC2C33A5" box="[686,948,1973,1998]" italics="true" pageId="10" pageNumber="407">Oswaldella terranovae</emphasis>
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: British Antarctic
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</taxonomicName>
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<emphasis id="0C9B4F39FFCAD328FB211198FA8D33A5" box="[1170,1301,1974,1997]" italics="true" pageId="10" pageNumber="407">
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<taxonomicName id="F9EFE8A8FFCAD328FB211198FB5733A5" authorityName="Johnson & Matusik" authorityYear="1988" box="[1170,1231,1974,1997]" class="Insecta" family="Lycaenidae" genus="Terra" higherTaxonomySource="GBIF" kingdom="Animalia" order="Lepidoptera" pageId="10" pageNumber="407" phylum="Arthropoda" rank="genus">Terra</taxonomicName>
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Nova
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</emphasis>
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Expedition
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<date id="4A51B5EBFFCAD328FF2411F4FE80339A" box="[151,280,2010,2034]" pageId="10" pageNumber="407" value="1910" valueMax="1913">1910–1913</date>
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, Stn 220,
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<date id="4A51B5EBFFCAD328FE3511F4FDAB339A" box="[390,563,2010,2034]" pageId="10" pageNumber="407" value="1912-01-03">3 January 1912</date>
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, off Cape Adare, Ross Sea,
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<quantity id="F9173ECEFFCAD328FCD911F4FC573399" box="[874,975,2010,2034]" metricMagnitude="1" metricUnit="m" metricValue="8.7" metricValueMax="9.2" metricValueMin="8.2" pageId="10" pageNumber="407" unit="m" value="87.0" valueMax="92.0" valueMin="82.0">
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82
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<emphasis id="0C9B4F39FFCAD328FC3511F4FC0C3399" box="[902,916,2010,2033]" italics="true" pageId="10" pageNumber="407">–</emphasis>
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92 m
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</quantity>
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, several stems up to
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<quantity id="F9173ECEFFCAD328FB0511F4FA8A3399" box="[1206,1298,2010,2034]" metricMagnitude="-1" metricUnit="m" metricValue="1.2" pageId="10" pageNumber="407" unit="mm" value="120.0">120 mm</quantity>
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high (NHM 1929.10.28.171), one slide with hydrocladia (1929.10.28.171, labelled n° 4), and four stems up to
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<quantity id="F9173ECEFFCBD329FAB116B6FAF934C7" box="[1282,1377,152,176]" metricMagnitude="-1" metricUnit="m" metricValue="1.3" pageId="11" pageNumber="408" unit="mm" value="130.0">130 mm</quantity>
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high (NHM 1929.10.28.172). A 57-mm-long, basally broken stem from the material with the collection number NHM 1929.10.28.172 is designated as holotype (all the remaining material is paratype).
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</paragraph>
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<paragraph id="3E50932BFFCBD329FF74172AFCD2350D" blockId="11.[151,1437,151,2018]" pageId="11" pageNumber="408">
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<emphasis id="0C9B4F39FFCBD329FF74172AFD9C3575" bold="true" box="[199,516,260,285]" pageId="11" pageNumber="408">Other material examined:</emphasis>
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New Zealand Antarctic Expedition TAN0402, Stn 178,
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<taxonomicName id="F9EFE8A8FFCBD329FB27172BFB673574" box="[1172,1279,261,284]" class="Arachnida" family="Uloboridae" genus="Tangaroa" higherTaxonomySource="GBIF" kingdom="Animalia" order="Araneae" pageId="11" pageNumber="408" phylum="Arthropoda" rank="genus">
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<emphasis id="0C9B4F39FFCBD329FB27172BFB673574" box="[1172,1279,261,284]" italics="true" pageId="11" pageNumber="408">Tangaroa</emphasis>
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</taxonomicName>
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,
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<date id="4A51B5EBFFCBD329FAA2172AFF4A3528" pageId="11" pageNumber="408" value="2004-02-27">27 February 2004</date>
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, 71°31’89’’–71°32’16’’S, 171°18’31’’–171°18’70’’E (Cape Adare, Ross Sea),
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<quantity id="F9173ECEFFCBD329FBC11706FB6E3557" box="[1138,1270,296,320]" metricMagnitude="2" metricUnit="m" metricValue="3.4549999999999996" metricValueMax="3.4799999999999995" metricValueMin="3.4299999999999997" pageId="11" pageNumber="408" unit="m" value="345.5" valueMax="348.0" valueMin="343.0">343–348 m</quantity>
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(identified as
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<taxonomicName id="F9EFE8A8FFCBD329FF241762FE8F350D" authorityName="Stechow" authorityYear="1919" box="[151,279,332,357]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="11" pageNumber="408" phylum="Cnidaria" rank="genus">
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<emphasis id="0C9B4F39FFCBD329FF241762FE8F350D" box="[151,279,332,357]" italics="true" pageId="11" pageNumber="408">Oswaldella</emphasis>
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</taxonomicName>
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sp. by González Molinero & Peña Cantero 2015).
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</paragraph>
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</subSubSection>
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<subSubSection id="76F5C0A0FFCBD329FF741741FD3130CE" pageId="11" pageNumber="408" type="description">
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<paragraph id="3E50932BFFCBD329FF741741FEF83670" blockId="11.[151,1437,151,2018]" pageId="11" pageNumber="408">
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<emphasis id="0C9B4F39FFCBD329FF741741FEC135E0" bold="true" box="[199,345,367,392]" pageId="11" pageNumber="408">Description.</emphasis>
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Stems at least
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<quantity id="F9173ECEFFCBD329FDB9175EFDF135EF" box="[522,617,368,392]" metricMagnitude="-1" metricUnit="m" metricValue="1.3" pageId="11" pageNumber="408" unit="mm" value="130.0">130 mm</quantity>
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high, unbranched and slightly polysiphonic basally. Stem thin, yellowbrown, divided into internodes separated by strongly marked nodes. From one to three apophyses per internode. Angle between cauline apophyses and stem c. 45°. Cauline apophyses with two axillary nematophores, each emerging through a simple hole in perisarc (
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<figureCitation id="A6D48FAEFFCBD329FD3117F2FD41359C" box="[642,729,476,501]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Fig. 7B</figureCitation>
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); no ‘mamelons’ present. Apophyses short, distinctly separated from hydrocladia.
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</paragraph>
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<paragraph id="3E50932BFFCBD329FF74140AFBE03052" blockId="11.[151,1437,151,2018]" pageId="11" pageNumber="408">
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Hydrocladia much branched (
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<figureCitation id="A6D48FAEFFCBD329FD94140AFD1F3654" box="[551,647,548,573]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Fig. 7A</figureCitation>
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), with up to six third-order hydrocladia, three on each secondary hydrocladium (in one case with four tertiary hydrocladia on a secondary hydrocladium); occasionally, a short fourth-order hydrocladium was present. Tertiary hydrocladia placed lower than secondary ones. Hydrocladia divided into internodes, barely decreasing distally in size; e.g. 1000–930 µm in length and 280–270 µm in diameter under hydrotheca, in 1
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<taxonomicName id="F9EFE8A8FFCBD329FE28149DFE4036A7" box="[411,472,691,719]" pageId="11" pageNumber="408" rank="subSpecies" subSpecies="and">st and</taxonomicName>
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8th unforked internodes of secondary hydrocladium, respectively. First hydrocladial internode bifurcated (
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<figureCitation id="A6D48FAEFFCBD329FE2214F4FE77369B" box="[401,495,730,755]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Fig. 7A</figureCitation>
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), with two similar prongs, distinctly separated from first internode of secondary hydrocladia. Mesial-inferior nematophore emerging from marked swelling at proximal third of internode (
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<figureCitation id="A6D48FAEFFCBD329FA8614D0FF333752" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Figs 7C– E</figureCitation>
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,
|
||
<figureCitation id="A6D48FAEFFCBD329FF09150DFF443753" box="[186,220,803,827]" captionStart="FIGURE 8" captionStartId="14.[151,250,1702,1724]" captionTargetBox="[158,1399,198,1677]" captionTargetId="figure@14.[150,1436,193,1681]" captionTargetPageId="14" captionText="FIGURE 8. Oswaldella occulta sp. nov. UnfOrked hydrOcladial inTernOdes, wiTh hydrOTheca, mesial superiOr nemaTOphOre and mesial inferiOr nemaTOTheca. Scale bar: 250 µm." httpUri="https://zenodo.org/record/1457913/files/figure.png" pageId="11" pageNumber="408">8A</figureCitation>
|
||
) and provided with a prominent nematotheca placed on frontal side of swelling (
|
||
<figureCitation id="A6D48FAEFFCBD329FB24150CFA8A3753" box="[1175,1298,802,827]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Figs 7C–F</figureCitation>
|
||
,
|
||
<figureCitation id="A6D48FAEFFCBD329FA92150DFAA93753" box="[1313,1329,803,827]" captionStart="FIGURE 8" captionStartId="14.[151,250,1702,1724]" captionTargetBox="[158,1399,198,1677]" captionTargetId="figure@14.[150,1436,193,1681]" captionTargetPageId="14" captionText="FIGURE 8. Oswaldella occulta sp. nov. UnfOrked hydrOcladial inTernOdes, wiTh hydrOTheca, mesial superiOr nemaTOphOre and mesial inferiOr nemaTOTheca. Scale bar: 250 µm." httpUri="https://zenodo.org/record/1457913/files/figure.png" pageId="11" pageNumber="408">8</figureCitation>
|
||
); usually nematotheca abcauline wall distinctly directed outwards. Hydrotheca placed on distal half of internode (
|
||
<figureCitation id="A6D48FAEFFCBD329FA8A1568FF5337EB" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Figs 7A, C–E</figureCitation>
|
||
,
|
||
<figureCitation id="A6D48FAEFFCBD329FF6B1545FF7F37EB" box="[216,231,875,899]" captionStart="FIGURE 8" captionStartId="14.[151,250,1702,1724]" captionTargetBox="[158,1399,198,1677]" captionTargetId="figure@14.[150,1436,193,1681]" captionTargetPageId="14" captionText="FIGURE 8. Oswaldella occulta sp. nov. UnfOrked hydrOcladial inTernOdes, wiTh hydrOTheca, mesial superiOr nemaTOphOre and mesial inferiOr nemaTOTheca. Scale bar: 250 µm." httpUri="https://zenodo.org/record/1457913/files/figure.png" pageId="11" pageNumber="408">8</figureCitation>
|
||
). Hydrotheca low, about as high as wide. Abcauline hydrothecal wall straight, directed abcaudally; length slightly increasing along hydrocladium (e.g. 210 µm in 1
|
||
<taxonomicName id="F9EFE8A8FFCBD329FCAB15A0FC0C37C2" box="[792,916,910,938]" pageId="11" pageNumber="408" rank="subSpecies" subSpecies="internode">st internode</taxonomicName>
|
||
of secondary hydrocladium and 240 µm in 7th internode). Perisarc of hydrotheca distinctly thickened (
|
||
<figureCitation id="A6D48FAEFFCBD329FCB4159BFCF837A6" box="[775,864,949,974]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Fig. 7C</figureCitation>
|
||
). Hydrothecal aperture circular (
|
||
<figureCitation id="A6D48FAEFFCBD329FB7E159BFABD37A6" box="[1229,1317,949,974]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Fig. 7C</figureCitation>
|
||
), 210–200 µm in diameter, roughly perpendicular to longitudinal axis of internode (
|
||
<figureCitation id="A6D48FAEFFCBD329FC0D15F7FBA23799" box="[958,1082,985,1010]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Figs 7D–E</figureCitation>
|
||
,
|
||
<figureCitation id="A6D48FAEFFCBD329FBF615F4FBCC379A" box="[1093,1108,986,1010]" captionStart="FIGURE 8" captionStartId="14.[151,250,1702,1724]" captionTargetBox="[158,1399,198,1677]" captionTargetId="figure@14.[150,1436,193,1681]" captionTargetPageId="14" captionText="FIGURE 8. Oswaldella occulta sp. nov. UnfOrked hydrOcladial inTernOdes, wiTh hydrOTheca, mesial superiOr nemaTOphOre and mesial inferiOr nemaTOTheca. Scale bar: 250 µm." httpUri="https://zenodo.org/record/1457913/files/figure.png" pageId="11" pageNumber="408">8</figureCitation>
|
||
); rim even (
|
||
<figureCitation id="A6D48FAEFFCBD329FB6815F7FACD379A" box="[1243,1365,985,1010]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Figs 7C–E</figureCitation>
|
||
,
|
||
<figureCitation id="A6D48FAEFFCBD329FAD315F4FAF7379A" box="[1376,1391,986,1010]" captionStart="FIGURE 8" captionStartId="14.[151,250,1702,1724]" captionTargetBox="[158,1399,198,1677]" captionTargetId="figure@14.[150,1436,193,1681]" captionTargetPageId="14" captionText="FIGURE 8. Oswaldella occulta sp. nov. UnfOrked hydrOcladial inTernOdes, wiTh hydrOTheca, mesial superiOr nemaTOphOre and mesial inferiOr nemaTOTheca. Scale bar: 250 µm." httpUri="https://zenodo.org/record/1457913/files/figure.png" pageId="11" pageNumber="408">8</figureCitation>
|
||
). In frontal view, hydrotheca usually jar-shaped, with a swollen basal half and a narrower distal one, but markedly widening again at aperture, producing a sort of narrow neck with flared rim (
|
||
<figureCitation id="A6D48FAEFFCBD329FC40120FFBF33052" box="[1011,1131,1057,1082]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="11" pageNumber="408">Fig. 7C, E</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="3E50932BFFCBD329FF74126BFE5C3036" blockId="11.[151,1437,151,2018]" box="[199,452,1093,1118]" pageId="11" pageNumber="408">Gonothecae unknown.</paragraph>
|
||
<paragraph id="3E50932BFFCBD329FF741247FD3130CE" blockId="11.[151,1437,151,2018]" pageId="11" pageNumber="408">
|
||
Cnidome composed of microbasic mastigophores in two size groups: larger, range
|
||
<date id="4A51B5EBFFCBD329FBD71247FB2630E9" box="[1124,1214,1129,1154]" pageId="11" pageNumber="408" value="2011-10-15">11–15 x</date>
|
||
3.5–4, mean 12.8 ± 1.2 x 3.8 ± 0.3 (n = 14); smaller, range 6–
|
||
<date id="4A51B5EBFFCBD329FDD812A3FD1530CD" box="[619,653,1165,1190]" pageId="11" pageNumber="408">7 x</date>
|
||
2.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="76F5C0A0FFCBD32DFF74129FFB6331A8" lastPageId="15" lastPageNumber="412" pageId="11" pageNumber="408" type="discussion">
|
||
<paragraph id="3E50932BFFCBD329FF74129FFAFC3086" blockId="11.[151,1437,151,2018]" pageId="11" pageNumber="408">
|
||
<emphasis id="0C9B4F39FFCBD329FF74129FFEA330A2" bold="true" box="[199,315,1201,1226]" pageId="11" pageNumber="408">Remarks.</emphasis>
|
||
The material of
|
||
<taxonomicName id="F9EFE8A8FFCBD329FDA7129FFD6D30A2" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[532,757,1201,1226]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="11" pageNumber="408" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCBD329FDA7129FFD6D30A2" box="[532,757,1201,1226]" italics="true" pageId="11" pageNumber="408">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCBD329FCB0129FFCFC30A2" box="[771,868,1201,1226]" pageId="11" pageNumber="408" rank="species">
|
||
<emphasis id="0C9B4F39FFCBD329FCB0129FFCFC30A2" bold="true" box="[771,868,1201,1226]" pageId="11" pageNumber="408">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
was in the material assigned to
|
||
<taxonomicName id="F9EFE8A8FFCBD329FAB3129CFEFC3086" authority="(Jaderholm, 1904)" authorityName="Jaderholm" authorityYear="1904" baseAuthorityName="Jaderholm" baseAuthorityYear="1904" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="11" pageNumber="408" phylum="Cnidaria" rank="species" species="antarctica">
|
||
<emphasis id="0C9B4F39FFCBD329FAB3129CFA0430A1" box="[1280,1436,1202,1225]" italics="true" pageId="11" pageNumber="408">O. antarctica</emphasis>
|
||
(
|
||
<bibRefCitation id="5A7EEEDAFFCBD329FF2D12FBFEC43086" box="[158,348,1237,1262]" pageId="11" pageNumber="408" refId="ref8134" refString="JaderhOlm, E. (1904) MiTTeilungen ueber einige VOn der Schwedischen AnTarcTic-ExpediTiOn 1901 - 1903 eingesammelTe HydrOiden. Archives de Zoologie Experimentale et Generale, Series 4, 3 (NOTes eT reVue 1), 1 - 7." type="journal article">Jäderholm, 1904</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
by Totton (1930) and later described as
|
||
<taxonomicName id="F9EFE8A8FFCBD329FC9B12F8FC5D3086" box="[808,965,1238,1262]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="11" pageNumber="408" phylum="Cnidaria" rank="species" species="terranovae">
|
||
<emphasis id="0C9B4F39FFCBD329FC9B12F8FC5D3086" box="[808,965,1238,1262]" italics="true" pageId="11" pageNumber="408">O. terranovae</emphasis>
|
||
</taxonomicName>
|
||
by Peña Cantero & Vervoort (1996).
|
||
</paragraph>
|
||
<paragraph id="3E50932BFFCBD329FF7412D4FCF0315E" blockId="11.[151,1437,151,2018]" pageId="11" pageNumber="408">On two occasions a secondary hydrocladium forms a third-order hydrocladium in its first and third internodes, but not in the second one (i.e. the second internode is unforked).</paragraph>
|
||
<paragraph id="3E50932BFFCBD329FF74136FFAC63259" blockId="11.[151,1437,151,2018]" pageId="11" pageNumber="408">
|
||
The species seems to have stems slightly polysiphonic only basally. Most of the stems available are deprived of the basal part and it was not possible to ascertain if they were polysiphonic. There are, however, hints indicating that the species can develop a sort of polysiphonic condition. Among the material examined, there is a stem,
|
||
<quantity id="F9173ECEFFCBD329FAC113A7FF5B31AD" metricMagnitude="-1" metricUnit="m" metricValue="1.05" pageId="11" pageNumber="408" unit="mm" value="105.0">105 mm</quantity>
|
||
high, provided with the basal part. Its first
|
||
<quantity id="F9173ECEFFCBD329FD7C1380FCBB31AD" box="[719,803,1454,1478]" metricMagnitude="-2" metricUnit="m" metricValue="1.3" pageId="11" pageNumber="408" unit="mm" value="13.0">13 mm</quantity>
|
||
have a few creeping stolons originating from cauline apophyses, some of them running downwards and acting as hydrorhizal stolons. In addition, some of the basally broken stems also have creeping stolons originating from cauline apophyses, although not in their most basal part. It is therefore highly likely that
|
||
<taxonomicName id="F9EFE8A8FFCBD329FE481034FDE8325A" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[507,624,1561,1586]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="11" pageNumber="408" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCBD329FE481034FDE8325A" box="[507,624,1561,1586]" italics="true" pageId="11" pageNumber="408">O. occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCBD329FDC51037FD48325A" box="[630,720,1561,1586]" pageId="11" pageNumber="408" rank="species">
|
||
<emphasis id="0C9B4F39FFCBD329FDC51037FD48325A" bold="true" box="[630,720,1561,1586]" pageId="11" pageNumber="408">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
can develop stems with a slightly polysiphonic basal part.
|
||
</paragraph>
|
||
<paragraph id="3E50932BFFCBD329FF741013FC38338A" blockId="11.[151,1437,151,2018]" pageId="11" pageNumber="408">
|
||
<taxonomicName id="F9EFE8A8FFCBD329FF741013FE3A323E" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[199,418,1597,1622]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="11" pageNumber="408" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCBD329FF741013FE3A323E" box="[199,418,1597,1622]" italics="true" pageId="11" pageNumber="408">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCBD329FE181013FD9E323E" box="[427,518,1597,1622]" pageId="11" pageNumber="408" rank="species">
|
||
<emphasis id="0C9B4F39FFCBD329FE181013FD9E323E" bold="true" box="[427,518,1597,1622]" pageId="11" pageNumber="408">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
appears to have unbranched stems, although the issue is as yet unresolved. The available material, however, points to the unbranched condition. The species seems to develop colonies with tuft appearance, with several unbranched stems growing together. In the available material there are some stems apparently branched, but the ‘branches’ are actually new stems. The ‘branching’ is associated with those parts of the stem with creeping stolons originating from cauline apophyses mentioned above. The new stems originate from those stolons, and in all cases they begin with an intermediate internode deprived of cauline apophyses, followed by a normal series of hydrocladia-bearing internodes provided with cauline apophyses. Only in one occasion a secondary stem/branch was observed, developing from a basally and distally broken, 90-mm-high stem. Apart from a basal new stem, with intermediate internode, originating from stolons as explained above, there is a distal stem/branch originating directly from the stem through a hole in the perisarc, not from a stolon. This secondary stem differs from the new stems in being composed of a normal series of hydrocladia-bearing internodes provided with cauline apophyses (i.e. there is no basal intermediate internode).
|
||
</paragraph>
|
||
<caption id="6A90C3A3FFCCD32EFF2411AFFE99339B" httpUri="https://zenodo.org/record/1457909/files/figure.png" pageId="12" pageNumber="409" startId="12.[151,250,1921,1943]" targetBox="[247,1339,193,1900]" targetPageId="12">
|
||
<paragraph id="3E50932BFFCCD32EFF2411AFFE99339B" blockId="12.[151,1436,1921,2035]" pageId="12" pageNumber="409">
|
||
<emphasis id="0C9B4F39FFCCD32EFF2411AFFE8B33FE" bold="true" box="[151,275,1921,1943]" pageId="12" pageNumber="409">FIGURE 6.</emphasis>
|
||
<taxonomicName id="F9EFE8A8FFCCD32EFEA911AFFCBB33FF" authority="Pena CanTerO & VerVOOrT, 1996" authorityName="Pena Cantero & Vervoort" authorityYear="1996" box="[282,803,1921,1943]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="12" pageNumber="407" phylum="Cnidaria" rank="species" species="tottoni">
|
||
<emphasis id="0C9B4F39FFCCD32EFEA911AFFE4E33FF" box="[282,470,1921,1943]" italics="true" pageId="12" pageNumber="409">Oswaldella tottoni</emphasis>
|
||
Peña CanTerO & VerVOOrT, 1996
|
||
</taxonomicName>
|
||
. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, firsT hydrOcladial inTernOde and cauline apOphysis shOwing axillary nemaTOphOres; C–D, unfOrked hydrOcladial inTernOdes (C frOnTal View, D laTeral View); E, deTail Of mesial inferiOr nemaTOTheca; F, gOnOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F).
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="6A90C3A3FFCDD32FFF2411B7FCA23384" httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="13" pageNumber="410" startId="13.[151,250,1945,1967]" targetBox="[239,1347,193,1924]" targetPageId="13">
|
||
<paragraph id="3E50932BFFCDD32FFF2411B7FCA23384" blockId="13.[151,1436,1945,2028]" pageId="13" pageNumber="410">
|
||
<emphasis id="0C9B4F39FFCDD32FFF2411B7FE8B33C6" bold="true" box="[151,275,1945,1967]" pageId="13" pageNumber="410">FIGURE 7.</emphasis>
|
||
<taxonomicName id="F9EFE8A8FFCDD32FFEA911B7FE4733C7" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[282,479,1945,1967]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="13" pageNumber="410" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCDD32FFEA911B7FE4733C7" box="[282,479,1945,1967]" italics="true" pageId="13" pageNumber="410">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCDD32FFE5611B7FDAE33C6" box="[485,566,1945,1966]" pageId="13" pageNumber="410" rank="species">
|
||
<emphasis id="0C9B4F39FFCDD32FFE5611B7FDAE33C6" bold="true" box="[485,566,1945,1966]" pageId="13" pageNumber="410">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F).
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="6A90C3A3FFCED32CFF241088FDE532B2" httpUri="https://zenodo.org/record/1457913/files/figure.png" pageId="14" pageNumber="411" startId="14.[151,250,1702,1724]" targetBox="[158,1399,198,1677]" targetPageId="14">
|
||
<paragraph id="3E50932BFFCED32CFF241088FDE532B2" blockId="14.[151,1435,1702,1754]" pageId="14" pageNumber="411">
|
||
<emphasis id="0C9B4F39FFCED32CFF241088FE8A32D3" bold="true" box="[151,274,1702,1724]" pageId="14" pageNumber="411">FIGURE 8.</emphasis>
|
||
<taxonomicName id="F9EFE8A8FFCED32CFEAA1088FE4532D4" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[281,477,1702,1724]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="411" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCED32CFEAA1088FE4532D4" box="[281,477,1702,1724]" italics="true" pageId="14" pageNumber="411">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCED32CFE501088FDAA32D3" box="[483,562,1702,1723]" pageId="14" pageNumber="411" rank="species">
|
||
<emphasis id="0C9B4F39FFCED32CFE501088FDAA32D3" bold="true" box="[483,562,1702,1723]" pageId="14" pageNumber="411">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
UnfOrked hydrOcladial inTernOdes, wiTh hydrOTheca, mesial superiOr nemaTOphOre and mesial inferiOr nemaTOTheca. Scale bar: 250 µm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="3E50932BFFCED32DFF741126FCD8377C" blockId="14.[151,1437,1799,2004]" lastBlockId="15.[151,1437,151,1616]" lastPageId="15" lastPageNumber="412" pageId="14" pageNumber="411">
|
||
Among the species of the genus,
|
||
<taxonomicName id="F9EFE8A8FFCED32CFDF81129FCBE3348" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[587,806,1799,1824]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="411" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCED32CFDF81129FCBE3348" box="[587,806,1799,1824]" italics="true" pageId="14" pageNumber="411">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCED32CFC831129FC153348" box="[816,909,1799,1824]" pageId="14" pageNumber="411" rank="species">
|
||
<emphasis id="0C9B4F39FFCED32CFC831129FC153348" bold="true" box="[816,909,1799,1824]" pageId="14" pageNumber="411">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
is morphologically closer to
|
||
<taxonomicName id="F9EFE8A8FFCED32CFB511126FAC83377" authorityName="Pena Cantero & Vervoort" authorityYear="1996" box="[1250,1360,1800,1823]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="411" phylum="Cnidaria" rank="species" species="tottoni">
|
||
<emphasis id="0C9B4F39FFCED32CFB511126FAC83377" box="[1250,1360,1800,1823]" italics="true" pageId="14" pageNumber="411">O. tottoni</emphasis>
|
||
</taxonomicName>
|
||
in the presence of a low hydrotheca, its position on the distal half of internode, and in the number of axillary nematophores in the cauline apophyses. However, they are clearly distinguishable in several important features. The stem is divided into internodes by strongly marked nodes in
|
||
<taxonomicName id="F9EFE8A8FFCED32CFCC4115DFBC933E4" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[887,1105,1907,1932]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="411" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCED32CFCC4115DFBC933E4" box="[887,1105,1907,1932]" italics="true" pageId="14" pageNumber="411">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCED32CFBEA115DFB2B33E4" box="[1113,1203,1907,1932]" pageId="14" pageNumber="411" rank="species">
|
||
<emphasis id="0C9B4F39FFCED32CFBEA115DFB2B33E4" bold="true" box="[1113,1203,1907,1932]" pageId="14" pageNumber="411">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
, whereas there is no stem division in
|
||
<taxonomicName id="F9EFE8A8FFCED32CFEE811B6FE5133C7" authorityName="Pena Cantero & Vervoort" authorityYear="1996" box="[347,457,1944,1967]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="411" phylum="Cnidaria" rank="species" species="tottoni">
|
||
<emphasis id="0C9B4F39FFCED32CFEE811B6FE5133C7" box="[347,457,1944,1967]" italics="true" pageId="14" pageNumber="411">O. tottoni</emphasis>
|
||
</taxonomicName>
|
||
; nodes are only occasionally present (cf. Peña Cantero & Vervoort 1996: 139). The degree of hydrocladial branching is also different: hydrocladia are much branched in
|
||
<taxonomicName id="F9EFE8A8FFCED32CFBEA1195FAAC33BC" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[1113,1332,1979,2004]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="14" pageNumber="411" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCED32CFBEA1195FAAC33BC" box="[1113,1332,1979,2004]" italics="true" pageId="14" pageNumber="411">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCED32CFA881195FA0D33BC" box="[1339,1429,1979,2004]" pageId="14" pageNumber="411" rank="species">
|
||
<emphasis id="0C9B4F39FFCED32CFA881195FA0D33BC" bold="true" box="[1339,1429,1979,2004]" pageId="14" pageNumber="411">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
, with up to six third-order hydrocladia, but only bifurcated in
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFCD516B6FC4D34D8" authorityName="Pena Cantero & Vervoort" authorityYear="1996" box="[870,981,152,176]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="tottoni">
|
||
<emphasis id="0C9B4F39FFCFD32DFCD516B6FC4D34D8" box="[870,981,152,176]" italics="true" pageId="15" pageNumber="412">O. tottoni</emphasis>
|
||
</taxonomicName>
|
||
, with only two secondary hydrocladia, which, in addition, bend inwards. Another important difference concerns the separation between the prongs of the first branched hydrocladial internode and the second-order hydrocladia. In
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFC4916F1FB4F3490" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[1018,1239,223,248]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFC4916F1FB4F3490" box="[1018,1239,223,248]" italics="true" pageId="15" pageNumber="412">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFB5316F1FAA53490" box="[1248,1341,223,248]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFB5316F1FAA53490" bold="true" box="[1248,1341,223,248]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
there is always a distinct node between the prongs and the first internode of the secondary hydrocladia (
|
||
<figureCitation id="A6D48FAEFFCFD32DFB62172AFAB43574" box="[1233,1324,260,285]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="15" pageNumber="412">Fig. 7A</figureCitation>
|
||
), whereas in
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFF001706FE853528" authorityName="Pena Cantero & Vervoort" authorityYear="1996" box="[179,285,296,320]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="tottoni">
|
||
<emphasis id="0C9B4F39FFCFD32DFF001706FE853528" box="[179,285,296,320]" italics="true" pageId="15" pageNumber="412">O. tottoni</emphasis>
|
||
</taxonomicName>
|
||
one, or both, of the prongs are frequently fused with the first internode of the second-order hydrocladia (
|
||
<figureCitation id="A6D48FAEFFCFD32DFF2C1762FF61350D" box="[159,249,332,357]" captionStart="FIGURE 6" captionStartId="12.[151,250,1921,1943]" captionTargetBox="[247,1339,193,1900]" captionTargetId="figure@12.[247,1339,193,1900]" captionTargetPageId="12" captionText="FIGURE 6. Oswaldella tottoni Peña CanTerO & VerVOOrT, 1996. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, firsT hydrOcladial inTernOde and cauline apOphysis shOwing axillary nemaTOphOres; C–D, unfOrked hydrOcladial inTernOdes (C frOnTal View, D laTeral View); E, deTail Of mesial inferiOr nemaTOTheca; F, gOnOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457909/files/figure.png" pageId="15" pageNumber="412">Fig. 6A</figureCitation>
|
||
, see also
|
||
<figureCitation id="A6D48FAEFFCFD32DFED01762FE29350C" box="[355,433,332,357]" captionStart="FIGURE 2" captionStartId="3.[151,250,1911,1933]" captionTargetBox="[245,1337,185,1892]" captionTargetId="figure@3.[245,1337,185,1892]" captionTargetPageId="3" captionText="FIGURE 2. Oswaldella grandis Peña CanTerO, SVObOda & VerVOOrT, 1997 (GEBRAB). A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B–C, cauline apOphysis wiTh axillary nemaTOphOres and ‘mamelOns’; D–E, unfOrked hydrOcladial inTernOdes (D frOnTal View, E laTeral View); F–G, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (D–E), 20 µm (B–C, F–G)." httpUri="https://zenodo.org/record/1457901/files/figure.png" pageId="15" pageNumber="412">Fig. 2a</figureCitation>
|
||
in Peña Cantero & Vervoort 1996). In
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFCD61763FC49350C" authorityName="Pena Cantero & Vervoort" authorityYear="1996" box="[869,977,333,356]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="tottoni">
|
||
<emphasis id="0C9B4F39FFCFD32DFCD61763FC49350C" box="[869,977,333,356]" italics="true" pageId="15" pageNumber="412">O. tottoni</emphasis>
|
||
</taxonomicName>
|
||
, as it was characterized by Peña Cantero & Vervoort (1996), the first hydrocladial internode, the branched one, lacks mesial inferior nematophore (cf.
|
||
<figureCitation id="A6D48FAEFFCFD32DFAC31741FF2235C5" captionStart="FIGURE 6" captionStartId="12.[151,250,1921,1943]" captionTargetBox="[247,1339,193,1900]" captionTargetId="figure@12.[247,1339,193,1900]" captionTargetPageId="12" captionText="FIGURE 6. Oswaldella tottoni Peña CanTerO & VerVOOrT, 1996. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, firsT hydrOcladial inTernOde and cauline apOphysis shOwing axillary nemaTOphOres; C–D, unfOrked hydrOcladial inTernOdes (C frOnTal View, D laTeral View); E, deTail Of mesial inferiOr nemaTOTheca; F, gOnOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457909/files/figure.png" pageId="15" pageNumber="412">Fig. 6B</figureCitation>
|
||
, see also
|
||
<figureCitation id="A6D48FAEFFCFD32DFE9617BAFE1735C5" box="[293,399,404,429]" captionStart="FIGURE 2" captionStartId="3.[151,250,1911,1933]" captionTargetBox="[245,1337,185,1892]" captionTargetId="figure@3.[245,1337,185,1892]" captionTargetPageId="3" captionText="FIGURE 2. Oswaldella grandis Peña CanTerO, SVObOda & VerVOOrT, 1997 (GEBRAB). A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B–C, cauline apOphysis wiTh axillary nemaTOphOres and ‘mamelOns’; D–E, unfOrked hydrOcladial inTernOdes (D frOnTal View, E laTeral View); F–G, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (D–E), 20 µm (B–C, F–G)." httpUri="https://zenodo.org/record/1457901/files/figure.png" pageId="15" pageNumber="412">Fig. 2a–b</figureCitation>
|
||
in Peña Cantero & Vervoort 1996 and Fig. 12A, C in Peña Cantero
|
||
<emphasis id="0C9B4F39FFCFD32DFB3917BBFB5A35C5" box="[1162,1218,404,429]" italics="true" pageId="15" pageNumber="412">et al.</emphasis>
|
||
1997); we can also confirm this observation, although occasionally that nematophore was present (
|
||
<figureCitation id="A6D48FAEFFCFD32DFBF81799FB3335B8" box="[1099,1195,439,464]" captionStart="FIGURE 6" captionStartId="12.[151,250,1921,1943]" captionTargetBox="[247,1339,193,1900]" captionTargetId="figure@12.[247,1339,193,1900]" captionTargetPageId="12" captionText="FIGURE 6. Oswaldella tottoni Peña CanTerO & VerVOOrT, 1996. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, firsT hydrOcladial inTernOde and cauline apOphysis shOwing axillary nemaTOphOres; C–D, unfOrked hydrOcladial inTernOdes (C frOnTal View, D laTeral View); E, deTail Of mesial inferiOr nemaTOTheca; F, gOnOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457909/files/figure.png" pageId="15" pageNumber="412">Fig. 6A</figureCitation>
|
||
). Another important difference is related to the position of the mesial inferior nematotheca, which is located at the most external point of the infrathecal swelling and its abcauline wall is distinctly directed outwards in
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFB9217D1FB643670" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[1057,1276,511,536]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFB9217D1FB643670" box="[1057,1276,511,536]" italics="true" pageId="15" pageNumber="412">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFAB717D1FAC63670" box="[1284,1374,511,536]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFAB717D1FAC63670" bold="true" box="[1284,1374,511,536]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
(
|
||
<figureCitation id="A6D48FAEFFCFD32DFADD17D1FF413654" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="15" pageNumber="412">Fig. 7C–F</figureCitation>
|
||
), whereas in
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFEDD140BFE423654" authorityName="Pena Cantero & Vervoort" authorityYear="1996" box="[366,474,549,572]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="tottoni">
|
||
<emphasis id="0C9B4F39FFCFD32DFEDD140BFE423654" box="[366,474,549,572]" italics="true" pageId="15" pageNumber="412">O. tottoni</emphasis>
|
||
</taxonomicName>
|
||
, and the remaining species of the genus with infrathecal swelling, it is located on the upper side and its abcauline wall is not directed abcaudally.
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFCFD1469FBB83608" authorityName="Pena Cantero & Vervoort" authorityYear="1996" box="[846,1056,583,608]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="tottoni">
|
||
<emphasis id="0C9B4F39FFCFD32DFCFD1469FBB83608" box="[846,1056,583,608]" italics="true" pageId="15" pageNumber="412">Oswaldella tottoni</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFBEF1469FAAF3608" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[1116,1335,583,608]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFBEF1469FAAF3608" box="[1116,1335,583,608]" italics="true" pageId="15" pageNumber="412">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFAF31469FA043608" box="[1344,1436,583,608]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFAF31469FA043608" bold="true" box="[1344,1436,583,608]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
also differ in the shape of the hydrotheca. Both species have low hydrothecae, but in
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFBE61443FB5836EC" authorityName="Pena Cantero & Vervoort" authorityYear="1996" box="[1109,1216,621,644]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="tottoni">
|
||
<emphasis id="0C9B4F39FFCFD32DFBE61443FB5836EC" box="[1109,1216,621,644]" italics="true" pageId="15" pageNumber="412">O. tottoni</emphasis>
|
||
</taxonomicName>
|
||
the diameter of the hydrotheca increases from the base to the top (
|
||
<figureCitation id="A6D48FAEFFCFD32DFD2C14A1FD6F36C0" box="[671,759,655,680]" captionStart="FIGURE 6" captionStartId="12.[151,250,1921,1943]" captionTargetBox="[247,1339,193,1900]" captionTargetId="figure@12.[247,1339,193,1900]" captionTargetPageId="12" captionText="FIGURE 6. Oswaldella tottoni Peña CanTerO & VerVOOrT, 1996. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, firsT hydrOcladial inTernOde and cauline apOphysis shOwing axillary nemaTOphOres; C–D, unfOrked hydrOcladial inTernOdes (C frOnTal View, D laTeral View); E, deTail Of mesial inferiOr nemaTOTheca; F, gOnOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457909/files/figure.png" pageId="15" pageNumber="412">Fig. 6C</figureCitation>
|
||
), whereas in
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFC3914A1FBFC36C0" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[906,1124,655,680]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFC3914A1FBFC36C0" box="[906,1124,655,680]" italics="true" pageId="15" pageNumber="412">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFBD914A1FB5C36C0" box="[1130,1220,655,680]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFBD914A1FB5C36C0" bold="true" box="[1130,1220,655,680]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
the hydrotheca has a swollen basal half and a narrower distal one, although markedly widening again at aperture, producing a sort of narrow neck with flared rim (
|
||
<figureCitation id="A6D48FAEFFCFD32DFE5214F9FDC03698" box="[481,600,727,752]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="15" pageNumber="412">Fig. 7C, E</figureCitation>
|
||
).
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFDDF14F9FCDE3698" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[620,838,727,752]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFDDF14F9FCDE3698" box="[620,838,727,752]" italics="true" pageId="15" pageNumber="412">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFCFE14F9FC3E3698" box="[845,934,727,752]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFCFE14F9FC3E3698" bold="true" box="[845,934,727,752]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
also has distinctly thicker perisarc (compare
|
||
<figureCitation id="A6D48FAEFFCFD32DFF2414D2FF73377D" box="[151,235,764,789]" captionStart="FIGURE 6" captionStartId="12.[151,250,1921,1943]" captionTargetBox="[247,1339,193,1900]" captionTargetId="figure@12.[247,1339,193,1900]" captionTargetPageId="12" captionText="FIGURE 6. Oswaldella tottoni Peña CanTerO & VerVOOrT, 1996. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, firsT hydrOcladial inTernOde and cauline apOphysis shOwing axillary nemaTOphOres; C–D, unfOrked hydrOcladial inTernOdes (C frOnTal View, D laTeral View); E, deTail Of mesial inferiOr nemaTOTheca; F, gOnOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457909/files/figure.png" pageId="15" pageNumber="412">Fig. 6C</figureCitation>
|
||
to
|
||
<figureCitation id="A6D48FAEFFCFD32DFEBC14D2FEFE377C" box="[271,358,764,789]" captionStart="FIGURE 7" captionStartId="13.[151,250,1945,1967]" captionTargetBox="[239,1347,193,1924]" captionTargetId="figure@13.[239,1347,193,1924]" captionTargetPageId="13" captionText="FIGURE 7. Oswaldella occulta sp. nov. A, hydrOcladial branching and dispOsiTiOn Of hydrOThecae; B, cauline apOphysis wiTh axillary nemaTOphOres; C–E, unfOrked hydrOcladial inTernOdes (C, E frOnTal View, D, laTeral View); F, deTail Of mesial inferiOr nemaTOTheca. Scale bar: 200 µm (A), 100 µm (C–E), 20 µm (B, F)." httpUri="https://zenodo.org/record/1457911/files/figure.png" pageId="15" pageNumber="412">Fig. 7C</figureCitation>
|
||
), which gives it a slight stony appearance.
|
||
</paragraph>
|
||
<paragraph id="3E50932BFFCFD32DFF74150EFB58303F" blockId="15.[151,1437,151,1616]" pageId="15" pageNumber="412">
|
||
By the absence of ‘mamelons’ and the presence of two axillary nematophores on the cauline apophyses,
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFF24156AFEEA3735" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[151,370,836,861]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFF24156AFEEA3735" box="[151,370,836,861]" italics="true" pageId="15" pageNumber="412">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFEC9156AFE4E3735" box="[378,470,836,861]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFEC9156AFE4E3735" bold="true" box="[378,470,836,861]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
is also similar to
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFD16156BFC783734" authority="(Hartlaub, 1904)" authorityName="Hartlaub" authorityYear="1904" baseAuthorityName="Hartlaub" baseAuthorityYear="1904" box="[677,992,836,861]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="bifurca">
|
||
<emphasis id="0C9B4F39FFCFD32DFD16156BFC813735" box="[677,793,836,861]" italics="true" pageId="15" pageNumber="412">O. bifurca</emphasis>
|
||
(
|
||
<bibRefCitation id="5A7EEEDAFFCFD32DFC9A156AFC413734" box="[809,985,836,861]" pageId="15" pageNumber="412" refId="ref8098" refString="HarTlaub, C. (1904) HydrOiden. Resultats du voyage du S. Y. Belgica en 1897 - 1899, ZOOlOgie, 7, 1 - 19, pls 1 - 4." type="journal article">Hartlaub, 1904</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFC5D156BFA9B3734" authority="Briggs, 1938" authorityName="Briggs" authorityYear="1938" box="[1006,1283,836,861]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="billardi">
|
||
<emphasis id="0C9B4F39FFCFD32DFC5D156BFBFD3735" box="[1006,1125,836,861]" italics="true" pageId="15" pageNumber="412">O. billardi</emphasis>
|
||
<bibRefCitation id="5A7EEEDAFFCFD32DFBDE156AFA9B3734" box="[1133,1283,836,861]" pageId="15" pageNumber="412" refId="ref7888" refString="Briggs, E. A. (1938) HydrOida. Scientific Report of the Australasian Antarctic Expedition 1911 - 1914, (C), 9 (4), 1 - 46, pls. 15 - 16." type="journal article">Briggs, 1938</bibRefCitation>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFAA3156BFDF437E8" authority="Pena Cantero, Svoboda & Vervoort, 1997" authorityName="Pena Cantero, Svoboda & Vervoort" authorityYear="1997" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="encarnae">
|
||
<emphasis id="0C9B4F39FFCFD32DFAA3156BFA043734" box="[1296,1436,837,860]" italics="true" pageId="15" pageNumber="412">O. encarnae</emphasis>
|
||
Peña Cantero, Svoboda & Vervoort, 1997
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFDC41546FBF837E8" authority="Pena Cantero & Vervoort, 1997" authorityName="Pena Cantero & Vervoort" authorityYear="1997" box="[631,1120,872,896]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="erratum">
|
||
<emphasis id="0C9B4F39FFCFD32DFDC41546FD6C37E8" box="[631,756,872,896]" italics="true" pageId="15" pageNumber="412">O. erratum</emphasis>
|
||
Peña Cantero & Vervoort, 1997
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFBDF1546FE5737CC" authority="Pena Cantero, Svoboda & Vervoort, 1997" authorityName="Pena Cantero, Svoboda & Vervoort" authorityYear="1997" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="incognita">
|
||
<emphasis id="0C9B4F39FFCFD32DFBDF1546FB6037E8" box="[1132,1272,872,896]" italics="true" pageId="15" pageNumber="412">O. incognita</emphasis>
|
||
Peña Cantero, Svoboda & Vervoort, 1997
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFDBF15A3FBF037CC" authority="Pena Cantero, Svoboda & Vervoort, 1997" authorityName="Pena Cantero, Svoboda & Vervoort" authorityYear="1997" box="[524,1128,908,933]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="rigida">
|
||
<emphasis id="0C9B4F39FFCFD32DFDBF15A3FDEE37CD" box="[524,630,908,933]" italics="true" pageId="15" pageNumber="412">O. rigida</emphasis>
|
||
Peña Cantero, Svoboda & Vervoort, 1997
|
||
</taxonomicName>
|
||
. Of these species, only
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFA3215A3FF7F37A0" baseAuthorityName="Hartlaub" baseAuthorityYear="1904" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="bifurca">
|
||
<emphasis id="0C9B4F39FFCFD32DFA3215A3FF7F37A0" italics="true" pageId="15" pageNumber="412">O. bifurca</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFE93159EFE3337A0" authorityName="Pena Cantero, Svoboda & Vervoort" authorityYear="1997" box="[288,427,944,968]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="encarnae">
|
||
<emphasis id="0C9B4F39FFCFD32DFE93159EFE3337A0" box="[288,427,944,968]" italics="true" pageId="15" pageNumber="412">O. encarnae</emphasis>
|
||
</taxonomicName>
|
||
have a low hydrotheca, the remaining species have an elongate hydrotheca, being easily distinguished from
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFEC515FBFE773785" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[374,495,980,1005]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFEC515FBFE773785" box="[374,495,980,1005]" italics="true" pageId="15" pageNumber="412">O. occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFE4B15FAFDCD3785" box="[504,597,980,1005]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFE4B15FAFDCD3785" bold="true" box="[504,597,980,1005]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFDED15FAFCA03785" baseAuthorityName="Hartlaub" baseAuthorityYear="1904" box="[606,824,980,1005]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="bifurca">
|
||
<emphasis id="0C9B4F39FFCFD32DFDED15FAFCA03785" box="[606,824,980,1005]" italics="true" pageId="15" pageNumber="412">Oswaldella bifurca</emphasis>
|
||
</taxonomicName>
|
||
differs from
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFC6715FBFBD43785" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[980,1100,980,1005]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFC6715FBFBD43785" box="[980,1100,980,1005]" italics="true" pageId="15" pageNumber="412">O. occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFBE515FAFB2B3785" box="[1110,1203,980,1005]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFBE515FAFB2B3785" bold="true" box="[1110,1203,980,1005]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
by the shape of the hydrotheca, which has a frontally depressed aperture, and its position on the basal half of the internode.
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFAAF15D9FF67305C" authorityName="Pena Cantero, Svoboda & Vervoort" authorityYear="1997" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="encarnae">
|
||
<emphasis id="0C9B4F39FFCFD32DFAAF15D9FF67305C" italics="true" pageId="15" pageNumber="412">Oswaldella encarnae</emphasis>
|
||
</taxonomicName>
|
||
clearly differs by the unbranched hydrocladia, the position of the hydrotheca on the middle of the internode, and the size and shape of the hydrotheca, which has an abcaudally directed aperture.
|
||
</paragraph>
|
||
<paragraph id="3E50932BFFCFD32DFF74124AFB6331A8" blockId="15.[151,1437,151,1616]" pageId="15" pageNumber="412">
|
||
The material described as
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFE41124AFDEA3015" authorityName="Stechow" authorityYear="1919" box="[498,626,1124,1149]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="genus">
|
||
<emphasis id="0C9B4F39FFCFD32DFE41124AFDEA3015" box="[498,626,1124,1149]" italics="true" pageId="15" pageNumber="412">Oswaldella</emphasis>
|
||
</taxonomicName>
|
||
sp. by González Molinero & Peña Cantero (2015) likely belongs to
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFA32124BFF7230C8" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFA32124BFF7230C8" italics="true" pageId="15" pageNumber="412">O. occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFF4012A9FED730C8" box="[243,335,1159,1184]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFF4012A9FED730C8" bold="true" box="[243,335,1159,1184]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
It is morphologically alike and was also collected off Cape Adare. González Molinero & Peña Cantero (2015) indicated that
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFE5F1282FDF330AD" authorityName="Stechow" authorityYear="1919" box="[492,619,1196,1221]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="genus">
|
||
<emphasis id="0C9B4F39FFCFD32DFE5F1282FDF330AD" box="[492,619,1196,1221]" italics="true" pageId="15" pageNumber="412">Oswaldella</emphasis>
|
||
</taxonomicName>
|
||
sp. has usually bifurcated hydrocladia with two secondary hydrocladia, although a third-order hydrocladium was not uncommon. A re-examination of the material has allowed us to put into evidence, despite the low number of hydrocladia left, that the presence of two third-order hydrocladia (one on each secondary hydrocladium) is quite common; on one occasion even two tertiary hydrocladia on the same secondary hydrocladium were observed, which indicates a likely higher degree of hydrocladial branching. The material of
|
||
<emphasis id="0C9B4F39FFCFD32DFEAB1371FE153110" box="[280,397,1375,1400]" italics="true" pageId="15" pageNumber="412">Owaldella</emphasis>
|
||
sp. also shares with
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFDC61371FCD63110" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[629,846,1375,1400]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFDC61371FCD63110" box="[629,846,1375,1400]" italics="true" pageId="15" pageNumber="412">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFCE61371FC373110" box="[853,943,1375,1400]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFCE61371FC373110" bold="true" box="[853,943,1375,1400]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
the division of the stem into internodes, the presence of two axillary nematophores on the cauline apophyses, the position of the hydrotheca on the distal half of internode, the size and shape of the hydrotheca, and the relatively large mesial inferior nematotheca.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="76F5C0A0FFCFD32DFF7413E2FB5F318C" box="[199,1223,1484,1509]" pageId="15" pageNumber="412" type="distribution">
|
||
<paragraph id="3E50932BFFCFD32DFF7413E2FB5F318C" blockId="15.[151,1437,151,1616]" box="[199,1223,1484,1509]" pageId="15" pageNumber="412">
|
||
<emphasis id="0C9B4F39FFCFD32DFF7413E2FEF8318D" bold="true" box="[199,352,1484,1509]" pageId="15" pageNumber="412">Distribution.</emphasis>
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFED413E2FDD8318D" authority="Cantero & Molinero, 2018" authorityName="Cantero & Molinero" authorityYear="2018" box="[359,576,1484,1509]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta" status="sp. nov.">
|
||
<emphasis id="0C9B4F39FFCFD32DFED413E2FDD8318D" box="[359,576,1484,1509]" italics="true" pageId="15" pageNumber="412">Oswaldella occulta</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="17A8F242FFCFD32DFDF413E2FD39318D" box="[583,673,1484,1509]" pageId="15" pageNumber="412" rank="species">
|
||
<emphasis id="0C9B4F39FFCFD32DFDF413E2FD39318D" bold="true" box="[583,673,1484,1509]" pageId="15" pageNumber="412">sp. nov.</emphasis>
|
||
</taxonomicNameLabel>
|
||
is currently considered endemic to the Ross Sea.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="76F5C0A0FFCFD32DFF7413C1FE4F3238" pageId="15" pageNumber="412" type="etymology">
|
||
<paragraph id="3E50932BFFCFD32DFF7413C1FE4F3238" blockId="15.[151,1437,151,1616]" pageId="15" pageNumber="412">
|
||
<emphasis id="0C9B4F39FFCFD32DFF7413C1FED63260" bold="true" box="[199,334,1519,1544]" pageId="15" pageNumber="412">Etymology.</emphasis>
|
||
The species name
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFD9513C1FDE03260" authorityName="Cantero & Molinero" authorityYear="2018" box="[550,632,1519,1544]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="occulta">
|
||
<emphasis id="0C9B4F39FFCFD32DFD9513C1FDE03260" box="[550,632,1519,1544]" italics="true" pageId="15" pageNumber="412">occulta</emphasis>
|
||
</taxonomicName>
|
||
comes from the Latin
|
||
<emphasis id="0C9B4F39FFCFD32DFCCF13C1FC413260" box="[892,985,1519,1544]" italics="true" pageId="15" pageNumber="412">occultus</emphasis>
|
||
, meaning hidden, concealed, and refers to the fact that the species was hidden among material of
|
||
<taxonomicName id="F9EFE8A8FFCFD32DFCA6103BFC293244" box="[789,945,1557,1580]" class="Hydrozoa" family="Kirchenpaueriidae" genus="Oswaldella" higherTaxonomySource="GBIF" kingdom="Animalia" order="Leptothecata" pageId="15" pageNumber="412" phylum="Cnidaria" rank="species" species="terranovae">
|
||
<emphasis id="0C9B4F39FFCFD32DFCA6103BFC293244" box="[789,945,1557,1580]" italics="true" pageId="15" pageNumber="412">O. terranovae</emphasis>
|
||
</taxonomicName>
|
||
and was not noticed by Totton (1930) when he first studied this material.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |