300 lines
35 KiB
XML
300 lines
35 KiB
XML
<document id="14A78FBCE03E812A97B4E4A31105C317" ID-CLB-Dataset="25247" ID-DOI="10.11646/zootaxa.4686.1.3" ID-GBIF-Dataset="7022d827-656b-4ab0-a560-b4cbc3f572cf" ID-ISSN="1175-5326" ID-Zenodo-Dep="3484354" ID-ZooBank="ADF808FE-3916-4501-90E7-659929F7E357" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1571037114316" checkinUser="plazi" docAuthor="Pugh, P. R." docDate="2019" docId="03BDAB16E7680D30E79B4E70FDE6FF44" docLanguage="en" docName="zootaxa.4686.1.3.pdf" docOrigin="Zootaxa 4686 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Bargmannia profunda Pugh 2019, sp. nov." docType="treatment" docVersion="7" lastPageNumber="82" masterDocId="FF84D36EE76D0D38E70C4A6DFFFAFF93" masterDocTitle="Two new species of Bargmannia (Pyrostephidae, Physonectae, Siphonophorae)" masterLastPageNumber="82" masterPageNumber="74" pageNumber="74" updateTime="1698758791134" updateUser="ExternalLinkService">
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<mods:mods id="790D31EAA595AD48995A92AAD65ACEF3" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="4DDEA2BBD32BD000B0477F6106119A9F">
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<mods:title id="EB13A529CA5B9145FB5BDCC2B4BEA7EE">Two new species of Bargmannia (Pyrostephidae, Physonectae, Siphonophorae)</mods:title>
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</mods:titleInfo>
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<mods:name id="D5A98D30E6CB8C161010DCD90685F1B8" type="personal">
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<mods:role id="4879B539767F1F3C690BEA676A4054C3">
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<mods:roleTerm id="B656E8BBB94936B1990F9385A02AE688">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="490CA8AC65CD819BA59C81FC82E9C9C5">Pugh, P. R.</mods:namePart>
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<mods:typeOfResource id="7A1E6E960D6762EE59AFE137D8ED4F2E">text</mods:typeOfResource>
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<mods:titleInfo id="4E768F0559F323BBE43880DF40303433">
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<mods:title id="DCE3FF1DB0282F0FADD5FE8617C5B06C">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="D8AF01845CAB2A3998C7C15E46DD1DB0">
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<mods:date id="629469B1B979F3CF27ECD74991669DAB">2019</mods:date>
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<mods:detail id="B8F006C4759F7575AEEA264EF321240B" type="pubDate">
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<mods:number id="457A08FE9A71680C642AC57625C93813">2019-10-14</mods:number>
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<mods:detail id="F87D555FCFFBB4960BC01BD944E3F55C" type="volume">
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<mods:number id="B9BD5690F76BD44A2B03F41426933236">4686</mods:number>
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</mods:detail>
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<mods:detail id="E058EA5C9D4BBC5F31BC8690DFEC407E" type="issue">
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<mods:number id="B442E35658C01484EB4599527295D3DB">1</mods:number>
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<mods:extent id="F5343670E834B11FD6EF3847D0C336B5" unit="page">
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<mods:start id="442854A6BF178CAEBC8B353D3BDC1D57">74</mods:start>
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<mods:end id="15BD6100C39EC602EEF092F4813D1506">82</mods:end>
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</mods:extent>
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<mods:classification id="8519EB872EAC7B1633D03B08C001C315">journal article</mods:classification>
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<mods:identifier id="F82E99F5DB53B2C63550E29331C2E629" type="CLB-Dataset">25247</mods:identifier>
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<mods:identifier id="076BAF3ED68AE9ABB70DCDCEE7A6523E" type="DOI">10.11646/zootaxa.4686.1.3</mods:identifier>
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<mods:identifier id="8445B33FAB1540D385A9370D8C44EE26" type="GBIF-Dataset">7022d827-656b-4ab0-a560-b4cbc3f572cf</mods:identifier>
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<mods:identifier id="CB1F941EB8B6BF2A3CF079DC02250F85" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="C6837B34E12190BC8E3CC72325ED7091" type="Zenodo-Dep">3484354</mods:identifier>
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<mods:identifier id="2AAA379AF851B12DA5A71382127B6113" type="ZooBank">ADF808FE-3916-4501-90E7-659929F7E357</mods:identifier>
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</mods:mods>
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<treatment id="03BDAB16E7680D30E79B4E70FDE6FF44" ID-GBIF-Taxon="159709347" LSID="urn:lsid:plazi:treatment:03BDAB16E7680D30E79B4E70FDE6FF44" httpUri="http://treatment.plazi.org/id/03BDAB16E7680D30E79B4E70FDE6FF44" lastPageId="8" pageId="5">
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<subSubSection id="C30E498BE7680D3DE79B4E70FDF7FBA4" box="[151,525,1053,1080]" pageId="5" type="nomenclature">
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<paragraph id="8BAB1A00E7680D3DE79B4E70FDF7FBA4" blockId="5.[151,525,1053,1080]" box="[151,525,1053,1080]" pageId="5">
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<heading id="D0E3AD6CE7680D3DE79B4E70FDF7FBA4" bold="true" box="[151,525,1053,1080]" fontSize="11" level="1" pageId="5" reason="1">
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<emphasis id="B960C612E7680D3DE79B4E70FDF7FBA4" bold="true" box="[151,525,1053,1080]" pageId="5">
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<taxonomicName id="4C146183E7680D3DE79B4E70FE52FBAB" ID-CoL="846YQ" authority="Pugh, 2019" authorityName="Pugh" authorityYear="2019" box="[151,424,1053,1080]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="5" phylum="Cnidaria" rank="species" species="profunda" status="sp. nov.">
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<emphasis id="B960C612E7680D3DE79B4E70FE52FBAB" bold="true" box="[151,424,1053,1080]" italics="true" pageId="5">Bargmannia profunda</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A2537B69E7680D3DE6BC4E70FDF7FBA4" box="[432,525,1053,1079]" pageId="5" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C30E498BE7680D3DE79B4E09FCA8FB78" pageId="5" type="materials_examined">
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<paragraph id="8BAB1A00E7680D3DE79B4E09FAC0FB30" blockId="5.[151,1437,1124,2015]" pageId="5">
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<emphasis id="B960C612E7680D3DE79B4E09FE79FBEC" bold="true" box="[151,387,1124,1151]" pageId="5">Material examined:</emphasis>
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<materialsCitation id="3B7C105DE7680D3DE6854E08FAC0FB30" ID-GBIF-Occurrence="2427264596" pageId="5" typeStatus="holotype">
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The specimen from ROV
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<emphasis id="B960C612E7680D3DE5A74E0BFCC3FBEC" box="[683,825,1125,1151]" italics="true" pageId="5">Doc Ricketts</emphasis>
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Dive 26 consisted of just nine nectophores. The specimen was collected at a depth of
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<quantity id="4CECB7E5E7680D3DE6F34EE4FDAEFB30" box="[511,596,1161,1187]" metricMagnitude="3" metricUnit="m" metricValue="3.323" pageId="5" unit="m" value="3323.0">3323 m</quantity>
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on
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<date id="FFAA3CC0E7680D3DE5724EE4FCDAFB30" box="[638,800,1160,1187]" pageId="5" value="2009-05-27">
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27
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<superScript id="7C61B748E7680D3DE5964EE5FD5DFB05" attach="left" box="[666,679,1160,1174]" fontSize="6" pageId="5">th</superScript>
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May 2009
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</date>
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at
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<geoCoordinate id="EE207CC7E7680D3DE44E4EE5FC5FFB30" box="[834,933,1160,1187]" degrees="35" direction="north" minutes="07" orientation="latitude" pageId="5" precision="925" value="35.116665">35°07’N</geoCoordinate>
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,
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<geoCoordinate id="EE207CC7E7680D3DE4BD4EE5FBC2FB30" box="[945,1080,1160,1187]" degrees="122" direction="west" minutes="46.5" orientation="longitude" pageId="5" precision="92" value="-122.775">122°46.5’W</geoCoordinate>
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, off
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<collectingRegion id="49D0D4E2E7680D3DE3614EE4FB1BFB30" box="[1133,1249,1161,1187]" country="United States of America" name="California" pageId="5">California</collectingRegion>
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,
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<collectingCountry id="F3035A90E7680D3DE3E14EE4FAC0FB30" box="[1261,1338,1161,1187]" name="United States of America" pageId="5">U.S.A.</collectingCountry>
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</materialsCitation>
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</paragraph>
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<paragraph id="8BAB1A00E7680D3DE7CB4EC0FCA8FB78" blockId="5.[151,1437,1124,2015]" pageId="5">
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<emphasis id="B960C612E7680D3DE7CB4EC0FED4FB54" box="[199,302,1197,1223]" italics="true" pageId="5">
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<typeStatus id="54AFA4A2E7680D3DE7CB4EC0FED4FB54" box="[199,302,1197,1223]" pageId="5" type="holotype">Holotype</typeStatus>
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</emphasis>
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: The above specimen is designated the
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<typeStatus id="54AFA4A2E7680D3DE5E94EC0FCBDFB54" box="[741,839,1197,1223]" pageId="5" type="holotype">holotype</typeStatus>
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and will be donated to the
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<location id="8ECB4CDBE7680D3DE37C4EC0FEEBFB78" LSID="urn:lsid:plazi:treatment:03BDAB16E7680D30E79B4E70FDE6FF44:8ECB4CDBE7680D3DE37C4EC0FEEBFB78" country="United States of America" municipality="Smithsonian Institution" name="National Museum of Natural History" pageId="5" stateProvince="Washington">National Museum of Natural History</location>
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,
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<collectingMunicipality id="6BCF807AE7680D3DE6104EBCFDDFFB78" box="[284,549,1233,1259]" pageId="5">Smithsonian Institution</collectingMunicipality>
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,
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<collectingRegion id="49D0D4E2E7680D3DE53C4EBCFD42FB78" box="[560,696,1233,1259]" country="United States of America" name="Washington" pageId="5">Washington</collectingRegion>
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, D.C.,
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<collectingCountry id="F3035A90E7680D3DE40A4EBCFCA8FB78" box="[774,850,1233,1259]" name="United States of America" pageId="5">U.S.A.</collectingCountry>
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</paragraph>
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</subSubSection>
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<subSubSection id="C30E498BE7680D3DE7CB4E99FBEBFAC4" pageId="5" type="diagnosis">
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<paragraph id="8BAB1A00E7680D3DE7CB4E99FBEBFAC4" blockId="5.[151,1437,1124,2015]" pageId="5">
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<emphasis id="B960C612E7680D3DE7CB4E99FEB8FA9C" bold="true" box="[199,322,1268,1295]" pageId="5">Diagnosis.</emphasis>
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Known only by its nectophores that measured up to
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<quantity id="4CECB7E5E7680D3DE49D4E98FC0FFA9C" box="[913,1013,1269,1295]" metricMagnitude="-2" metricUnit="m" metricValue="2.07" pageId="5" unit="mm" value="20.7">20.7 mm</quantity>
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in length. Lower lateral ridges do not combine with meso-laterals distally. No mouth-plate. Nectosac relatively narrow and resembling a flattened cylin- der. Triangular thrust block occupying almost half the length of the nectophore.
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</paragraph>
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</subSubSection>
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<subSubSection id="C30E498BE7680D3FE7CB4F0DFBA9FE18" lastPageId="7" pageId="5" type="description">
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<paragraph id="8BAB1A00E7680D3DE7CB4F0DFD90FA50" blockId="5.[151,1437,1124,2015]" pageId="5">
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<emphasis id="B960C612E7680D3DE7CB4F0DFEA3FAE8" bold="true" box="[199,345,1376,1403]" pageId="5">Description.</emphasis>
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An
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<emphasis id="B960C612E7680D3DE68B4F0FFE36FAE8" box="[391,460,1378,1403]" italics="true" pageId="5">in situ</emphasis>
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frame grab was taken of the specimen (
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<figureCitation id="132F0685E7680D3DE4854F0CFC11FAE8" box="[905,1003,1376,1403]" captionStart="FIGURE 5" captionStartId="6.[151,250,726,751]" captionTargetId="figure@6.[340,1247,183,703]" captionTargetPageId="6" captionText="FIGURE 5. In situ photograph of Bargmannia profunda sp. nov. Scale unknown." figureDoi="http://doi.org/10.5281/zenodo.3497169" httpUri="https://zenodo.org/record/3497169/files/figure.png" pageId="5">Figure 5</figureCitation>
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). This shows that before collection the specimen had lost almost all of its siphosome and this could explain why no siphosomal zooids were preserved. There were no signs of any pigmentation.
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</paragraph>
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<paragraph id="8BAB1A00E7680D3DE7CB4FA0FC72F908" blockId="5.[151,1437,1124,2015]" pageId="5">
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<emphasis id="B960C612E7680D3DE7CB4FA0FEA9FA74" box="[199,339,1485,1511]" italics="true" pageId="5">Nectophores</emphasis>
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: The nine preserved nectophores varied in size from
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<quantity id="4CECB7E5E7680D3DE4B94FA0FBE0FA74" box="[949,1050,1485,1511]" metricMagnitude="-2" metricUnit="m" metricValue="1.18" pageId="5" unit="mm" value="11.8">11.8 mm</quantity>
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in length and
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<quantity id="4CECB7E5E7680D3DE3CC4FA0FAE2FA74" box="[1216,1304,1485,1511]" metricMagnitude="-3" metricUnit="m" metricValue="6.7" pageId="5" unit="mm" value="6.7">6.7 mm</quantity>
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in width to
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<quantity id="4CECB7E5E7680D3DE79B4F9CFF06F998" box="[151,252,1521,1547]" metricMagnitude="-2" metricUnit="m" metricValue="2.07" pageId="5" unit="mm" value="20.7">20.7 mm</quantity>
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and
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<quantity id="4CECB7E5E7680D3DE6394F9CFE66F998" box="[309,412,1521,1547]" metricMagnitude="-2" metricUnit="m" metricValue="1.23" pageId="5" unit="mm" value="12.3">12.3 mm</quantity>
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, respectively. The ratio of the total length of the mature nectophore to that of the nectosac averaged 1.4. Although fairly robust, several of the preserved nectophores had lost the ectodermal lining to their nectosac, and in all others it was damaged. Although collectively it was possible to trace the arrangement of the radial canals, it was very difficult to discern the extent of the muscle-free zone on the lower side of the nectosac, and it may be larger or smaller than that represented in the illustrations.
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</paragraph>
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<paragraph id="8BAB1A00E7680D3DE7CB4CC8FF38F84C" blockId="5.[151,1437,1124,2015]" pageId="5">
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A younger nectophore is shown in
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<figureCitation id="132F0685E7680D3DE54B4CC8FD5DF92C" box="[583,679,1701,1727]" captionStart="FIGURE 6" captionStartId="6.[151,260,1469,1496]" captionTargetBox="[157,1434,795,1444]" captionTargetId="figure@6.[151,1436,791,1449]" captionText="FIGURE 6. Young nectophore of Bargmannia profunda sp. nov. Upper (left), lateral (centre) and lower (right) views. See Figure 1 for list of annotations. Scale bar 5 mm." figureDoi="http://doi.org/10.5281/zenodo.3497171" httpUri="https://zenodo.org/record/3497171/files/figure.png" pageId="5">Figure 6</figureCitation>
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. At that stage the thrust block was relatively small and the ascending mantle canal extended to about half its height. All the ridges were well-defined and as with most other
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<taxonomicName id="4C146183E7680D3DE21D4CA7FA66F970" box="[1297,1436,1738,1763]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="5" phylum="Cnidaria" rank="genus">
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<emphasis id="B960C612E7680D3DE21D4CA7FA66F970" box="[1297,1436,1738,1763]" italics="true" pageId="5">Bargmannia</emphasis>
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</taxonomicName>
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species, except
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<taxonomicName id="4C146183E7680D3DE6464C83FE3FF894" authority="Pugh, 2019" authorityName="Pugh" authorityYear="2019" box="[330,453,1774,1799]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="5" phylum="Cnidaria" rank="species" species="stenotes" status="sp. nov.">
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<emphasis id="B960C612E7680D3DE6464C83FE3FF894" box="[330,453,1774,1799]" italics="true" pageId="5">B. stenotes</emphasis>
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</taxonomicName>
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||
<emphasis id="B960C612E7680D3DE6C24C80FDD0F894" bold="true" box="[462,554,1773,1799]" pageId="5">
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<taxonomicNameLabel id="A2537B69E7680D3DE6C24C80FDD0F894" box="[462,554,1773,1799]" pageId="5" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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, the upper and lower laterals curved round to join together. The meso-lateral ridges ran from their proximal junctions with the upper and lower ridges obliquely down to end below the ostium. One characteristic feature was that the lower lateral ridges did not unite, distally, with the meso-lateral ridges, but petered out a short distance from them. At this stage the upper lateral ridges ran down the nectophore in parallel and very close to each other. Shortly above the ostium they clearly divided into inner and outer branches. The inner ones continued directly to the ostium, while the outer ones ran obliquely outwards for a short distance before petering out.
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</paragraph>
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<caption id="DF6B4A88E76B0D3EE79B48BBFC25FD7C" ID-DOI="http://doi.org/10.5281/zenodo.3497169" ID-Zenodo-Dep="3497169" box="[151,991,725,751]" httpUri="https://zenodo.org/record/3497169/files/figure.png" pageId="6" targetBox="[340,1247,183,703]" targetPageId="6">
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<paragraph id="8BAB1A00E76B0D3EE79B48BBFC25FD7C" blockId="6.[151,991,725,751]" box="[151,991,725,751]" pageId="6">
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<emphasis id="B960C612E76B0D3EE79B48BBFEE9FD7C" bold="true" box="[151,275,726,751]" pageId="6">FIGURE 5.</emphasis>
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<emphasis id="B960C612E76B0D3EE61548BAFEA0FD7D" box="[281,346,727,750]" italics="true" pageId="6">In situ</emphasis>
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photograph of
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<taxonomicName id="4C146183E76B0D3EE6F948BAFD2FFD7C" authority="Pugh, 2019" authorityName="Pugh" authorityYear="2019" box="[501,725,727,751]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="6" phylum="Cnidaria" rank="species" species="profunda" status="sp. nov.">
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<emphasis id="B960C612E76B0D3EE6F948BAFD2FFD7C" box="[501,725,727,751]" italics="true" pageId="6">Bargmannia profunda</emphasis>
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</taxonomicName>
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<emphasis id="B960C612E76B0D3EE5D048B8FCCFFD7C" bold="true" box="[732,821,725,751]" pageId="6">
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<taxonomicNameLabel id="A2537B69E76B0D3EE5D048B8FCCFFD7C" box="[732,821,725,751]" pageId="6" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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Scale unknown.
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</paragraph>
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</caption>
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<caption id="DF6B4A88E76B0D3EE79B4FD0FCCAFA6E" ID-DOI="http://doi.org/10.5281/zenodo.3497171" ID-Zenodo-Dep="3497171" httpUri="https://zenodo.org/record/3497171/files/figure.png" pageId="6" startId="6.[151,260,1469,1496]" subCaptionStartIDs="6.[278,351,1506,1532]" subCaptionStarts="Figure 1 f" targetBox="[157,1434,795,1444]" targetPageId="6">
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<paragraph id="8BAB1A00E76B0D3EE79B4FD0FCCAFA6E" blockId="6.[151,1436,1469,1533]" pageId="6">
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<emphasis id="B960C612E76B0D3EE79B4FD0FED9FA4B" bold="true" box="[151,291,1469,1496]" pageId="6">FIGURE 6.</emphasis>
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Young nectophore of
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<taxonomicName id="4C146183E76B0D3EE52A4FD2FCDBFA4B" authority="Pugh, 2019" authorityName="Pugh" authorityYear="2019" box="[550,801,1470,1496]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="6" phylum="Cnidaria" rank="species" species="profunda" status="sp. nov.">
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<emphasis id="B960C612E76B0D3EE52A4FD2FCDBFA4B" box="[550,801,1470,1496]" italics="true" pageId="6">Bargmannia profunda</emphasis>
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</taxonomicName>
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<emphasis id="B960C612E76B0D3EE4264FD3FC7CFA4B" bold="true" box="[810,902,1470,1496]" pageId="6">
|
||
<taxonomicNameLabel id="A2537B69E76B0D3EE4264FD3FC7CFA4B" box="[810,902,1470,1496]" pageId="6" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Upper (left), lateral (centre) and lower (right) views. See
|
||
<figureCitation id="132F0685E76B0D3EE61A4F8FFE8EFA6F" box="[278,372,1506,1532]" captionStart="FIGURE 1" captionStartId="2.[151,250,1793,1818]" captionTargetBox="[172,1421,366,1685]" captionTargetId="figure@2.[151,1436,358,1697]" captionText="FIGURE 1. A. Very young nectophore of Bargmannia stenotes sp. nov., upper side (left) and lower side (right). Scale bar 1 mm. B. Small nectophore of Bargmannia stenotes sp. nov. Upper (left), lateral (centre) and lower (right) views. amc. ascending mantle canal; bi, bo. inner and outer branches of upper lateral ridge; lop. lateral ostial process; lrc. lateral radial canal; mfz. muscle-free zone; ns. nectosac; pedc. pedicular canal; rll., lrm., rul. lower, meso- and upper lateral ridges; tb. thrust block. Scale bar 2 mm. Proximal at top, distal at bottom." figureDoi="http://doi.org/10.5281/zenodo.3497161" httpUri="https://zenodo.org/record/3497161/files/figure.png" pageId="6">Figure 1</figureCitation>
|
||
for list of annotations. Scale bar
|
||
<quantity id="4CECB7E5E76B0D3EE5E44F8CFCD6FA6E" box="[744,812,1505,1533]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="6" unit="mm" value="5.0">5 mm</quantity>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BAB1A00E76B0D3EE7CB4C46FF2FF8D3" blockId="6.[151,1437,1578,2037]" pageId="6">In its preserved state the nectosac was quite narrow and approximately cylindrical. The ostial opening was broad. The long ascending mantle canal gave rise to a very short pedicular canal that in turn branched off just the upper and lower radial canals on the nectosac. The lateral canals arose, slightly asymmetrically, from the upper canal close to the apex of the nectosac. They ran obliquely out to the lateral margins of the nectosac and then straight down to the ostial ring canal. As noted above, because of damage to the lining of the nectosac it was difficult to assess the exact extent of the muscle-free zone or the position of the ostial ring canal. The ostial opening was deflected slightly toward the upper side of the nectophore, but this was almost certainly a preservation artefact. There was no mouthplate.</paragraph>
|
||
<paragraph id="8BAB1A00E76B0D3FE7CB4D27FAF0FF44" blockId="6.[151,1437,1578,2037]" lastBlockId="7.[151,1436,153,395]" lastPageId="7" pageId="6">
|
||
As the nectophores matured the main change was in the size of the thrust block (
|
||
<figureCitation id="132F0685E76B0D3EE35A4D27FB43F8F6" box="[1110,1209,1866,1893]" captionStart="FIGURE 7" captionStartId="7.[151,260,1280,1307]" captionTargetBox="[160,1427,441,1255]" captionTargetId="figure@7.[151,1436,435,1259]" captionText="FIGURE 7. Mature nectophore of Bargmannia profunda sp. nov. Upper (left), lateral (centre) and lower (right) views. Proximal at top. See Figure 1 for list of annotations. Scale bar 5 mm." figureDoi="http://doi.org/10.5281/zenodo.3497173" httpUri="https://zenodo.org/record/3497173/files/figure.png" pageId="6">Figure 7</figureCitation>
|
||
). It became roughly triangular in shape coming to a rounded point proximally, without forming a digitate process. The ascending mantle canal extended to about half the length of the thrust block and typically ended in a small swelling inflected into the mesogloea. The lower lateral ridges extended to approximately the same level before petering out. Distally these ridges still did not unite with the meso-lateral ridges.At the junction between all three main ridges there was a thick- ening that extended proximally for a short distance. Shortly above the ostium the upper lateral ridges branched, the inner branch running distally to the ostium, and the outer pair obliquely outwards for a short distance.
|
||
</paragraph>
|
||
<paragraph id="8BAB1A00E76A0D3FE7CB4A8CFBA9FE18" blockId="7.[151,1436,153,395]" pageId="7">The ostial opening was wide, accentuated by the absence of the lining to the nectosac, and tended to be inflected slightly toward the upper side. The nectosac remained cylindrical in shape, and was only slightly emarginated on its proximal side. It was difficult to gauge the extent of the muscle-free zone, but it was clear that it extended slightly onto the upper side of the nectosac, proximally. The lateral radial canals arose, slightly asymmetrically, from the upper canal at a notable distance from the insertion point of the short pedicular canal.</paragraph>
|
||
</subSubSection>
|
||
<caption id="DF6B4A88E76A0D3FE79B4F6DFC11FAAC" ID-DOI="http://doi.org/10.5281/zenodo.3497173" ID-Zenodo-Dep="3497173" httpUri="https://zenodo.org/record/3497173/files/figure.png" pageId="7" startId="7.[151,260,1280,1307]" subCaptionStartIDs="7.[465,538,1317,1343]" subCaptionStarts="Figure 1 f" targetBox="[160,1427,441,1255]" targetPageId="7">
|
||
<paragraph id="8BAB1A00E76A0D3FE79B4F6DFC11FAAC" blockId="7.[151,1437,1280,1343]" pageId="7">
|
||
<emphasis id="B960C612E76A0D3FE79B4F6DFED9FA88" bold="true" box="[151,291,1280,1307]" pageId="7">FIGURE 7.</emphasis>
|
||
Mature nectophore of
|
||
<taxonomicName id="4C146183E76A0D3FE5204F6FFCDCFA88" authority="Pugh, 2019" authorityName="Pugh" authorityYear="2019" box="[556,806,1281,1307]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="species" species="profunda" status="sp. nov.">
|
||
<emphasis id="B960C612E76A0D3FE5204F6FFCDCFA88" box="[556,806,1281,1307]" italics="true" pageId="7">Bargmannia profunda</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B960C612E76A0D3FE4234F6CFC70FA88" bold="true" box="[815,906,1281,1307]" pageId="7">
|
||
<taxonomicNameLabel id="A2537B69E76A0D3FE4234F6CFC70FA88" box="[815,906,1281,1307]" pageId="7" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Upper (left), lateral (centre) and lower (right) views. Proximal at top. See
|
||
<figureCitation id="132F0685E76A0D3FE6DD4F48FDD5FAAC" box="[465,559,1317,1343]" captionStart="FIGURE 1" captionStartId="2.[151,250,1793,1818]" captionTargetBox="[172,1421,366,1685]" captionTargetId="figure@2.[151,1436,358,1697]" captionText="FIGURE 1. A. Very young nectophore of Bargmannia stenotes sp. nov., upper side (left) and lower side (right). Scale bar 1 mm. B. Small nectophore of Bargmannia stenotes sp. nov. Upper (left), lateral (centre) and lower (right) views. amc. ascending mantle canal; bi, bo. inner and outer branches of upper lateral ridge; lop. lateral ostial process; lrc. lateral radial canal; mfz. muscle-free zone; ns. nectosac; pedc. pedicular canal; rll., lrm., rul. lower, meso- and upper lateral ridges; tb. thrust block. Scale bar 2 mm. Proximal at top, distal at bottom." figureDoi="http://doi.org/10.5281/zenodo.3497161" httpUri="https://zenodo.org/record/3497161/files/figure.png" pageId="7">Figure 1</figureCitation>
|
||
for list of annotations. Scale bar
|
||
<quantity id="4CECB7E5E76A0D3FE4AE4F49FC1CFAAC" box="[930,998,1316,1343]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="7" unit="mm" value="5.0">5 mm</quantity>
|
||
.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="C30E498BE76A0D3FE7CB4F00FD01F8A4" pageId="7" type="discussion">
|
||
<paragraph id="8BAB1A00E76A0D3FE7CB4F00FD01F8A4" blockId="7.[151,1437,1389,2027]" pageId="7">
|
||
<emphasis id="B960C612E76A0D3FE7CB4F00FEC1FA14" bold="true" box="[199,315,1389,1415]" pageId="7">Remarks.</emphasis>
|
||
The arrangement of the ridges, and particularly the fact that the lower lateral ridge did not join, distally, with the meso-lateral one suggests a similarity with that of the smaller nectophores of
|
||
<taxonomicName id="4C146183E76A0D3FE3A64FFFFA6CFA38" authorityName="Pugh" authorityYear="1999" box="[1194,1430,1426,1451]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="species" species="amoena">
|
||
<emphasis id="B960C612E76A0D3FE3A64FFFFA6CFA38" box="[1194,1430,1426,1451]" italics="true" pageId="7">Bargmannia amoena</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<bibRefCitation id="EF8567F1E76A0D3FE79B4FD8FED9FA5C" author="Pugh, P. R." box="[151,291,1461,1487]" pageId="7" pagination="51 - 72" refId="ref4598" refString="Pugh, P. R. (1999) A review of the genus Bargmannia Totton, 1954 (Siphonophorae, Physonectae, Pyrostephidae). Bulletin of the Natural History Museum, London, Zoology Series, 65, 51 - 72." type="journal article" year="1999">Pugh (1999)</bibRefCitation>
|
||
noted that the nectophores of
|
||
<taxonomicName id="4C146183E76A0D3FE5704FDBFD0FFA5C" authorityName="Pugh" authorityYear="1999" box="[636,757,1462,1487]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="species" species="amoena">
|
||
<emphasis id="B960C612E76A0D3FE5704FDBFD0FFA5C" box="[636,757,1462,1487]" italics="true" pageId="7">B. amoena</emphasis>
|
||
</taxonomicName>
|
||
could be split into three size categories, which probably reflected the state of sexual maturity of the colony. Nectophores of the middle range are similar in size to those of
|
||
<taxonomicName id="4C146183E76A0D3FE2884FB7FF07F984" authority="Pugh, 2019" authorityName="Pugh" authorityYear="2019" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="species" species="profunda" status="sp. nov.">
|
||
<emphasis id="B960C612E76A0D3FE2884FB7FF07F984" italics="true" pageId="7">B. profunda</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B960C612E76A0D3FE60F4F90FEA6F984" bold="true" box="[259,348,1533,1559]" pageId="7">
|
||
<taxonomicNameLabel id="A2537B69E76A0D3FE60F4F90FEA6F984" box="[259,348,1533,1559]" pageId="7" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
, and both had a similar ratio of overall length to nectosac length. Nonetheless, there is one feature that clearly distinguishes the two species and that is the presence of a distinct mouth-plate on the nectophores of
|
||
<taxonomicName id="4C146183E76A0D3FE2884C4FFF0AF9CC" authorityName="Pugh" authorityYear="1999" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="species" species="amoena">
|
||
<emphasis id="B960C612E76A0D3FE2884C4FFF0AF9CC" italics="true" pageId="7">B. amoena</emphasis>
|
||
</taxonomicName>
|
||
, while for
|
||
<taxonomicName id="4C146183E76A0D3FE6624C2BFE0EF9CC" authority="Pugh, 2019" authorityName="Pugh" authorityYear="2019" box="[366,500,1605,1631]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="species" species="profunda" status="sp. nov.">
|
||
<emphasis id="B960C612E76A0D3FE6624C2BFE0EF9CC" box="[366,500,1605,1631]" italics="true" pageId="7">B. profunda</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B960C612E76A0D3FE6F74C28FDACF9CC" bold="true" box="[507,598,1605,1631]" pageId="7">
|
||
<taxonomicNameLabel id="A2537B69E76A0D3FE6F74C28FDACF9CC" box="[507,598,1605,1631]" pageId="7" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
it was totally absent. This alone would seem to warrant the establishment of a new species. In comparison with the specimens of
|
||
<taxonomicName id="4C146183E76A0D3FE40F4C07FC81F910" authorityName="Pugh" authorityYear="1999" box="[771,891,1642,1667]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="species" species="amoena">
|
||
<emphasis id="B960C612E76A0D3FE40F4C07FC81F910" box="[771,891,1642,1667]" italics="true" pageId="7">B. amoena</emphasis>
|
||
</taxonomicName>
|
||
also caught in the same vicinity the nectophores of
|
||
<taxonomicName id="4C146183E76A0D3FE7BA4CE3FEC1F934" authority="Pugh, 2019" authorityName="Pugh" authorityYear="2019" box="[182,315,1677,1703]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="species" species="profunda" status="sp. nov.">
|
||
<emphasis id="B960C612E76A0D3FE7BA4CE3FEC1F934" box="[182,315,1677,1703]" italics="true" pageId="7">B. profunda</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B960C612E76A0D3FE64D4CE0FE61F934" bold="true" box="[321,411,1677,1703]" pageId="7">
|
||
<taxonomicNameLabel id="A2537B69E76A0D3FE64D4CE0FE61F934" box="[321,411,1677,1703]" pageId="7" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
were more flaccid, in their preserved state, and the lining of the nectosac had a tendency to detach itself. Finally, the photograph of the
|
||
<emphasis id="B960C612E76A0D3FE5734CDFFD3EF958" box="[639,708,1714,1739]" italics="true" pageId="7">in situ</emphasis>
|
||
specimen (
|
||
<figureCitation id="132F0685E76A0D3FE4484CDCFC59F958" box="[836,931,1712,1739]" captionStart="FIGURE 5" captionStartId="6.[151,250,726,751]" captionTargetId="figure@6.[340,1247,183,703]" captionTargetPageId="6" captionText="FIGURE 5. In situ photograph of Bargmannia profunda sp. nov. Scale unknown." figureDoi="http://doi.org/10.5281/zenodo.3497169" httpUri="https://zenodo.org/record/3497169/files/figure.png" pageId="7">Figure 5</figureCitation>
|
||
) showed no sign of any pigmentation, which would be very unusual if it were
|
||
<taxonomicName id="4C146183E76A0D3FE5044CBBFD7AF97C" authorityName="Pugh" authorityYear="1999" box="[520,640,1750,1775]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="species" species="amoena">
|
||
<emphasis id="B960C612E76A0D3FE5044CBBFD7AF97C" box="[520,640,1750,1775]" italics="true" pageId="7">B. amoena</emphasis>
|
||
</taxonomicName>
|
||
as colonies of that species have bright orange-red gastrozooids and the whole stem is of the same colour, as are the radial canals on the nectosac of the nectophores. Indeed the nectosac itself is usually suffused with a pale orange coloration.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30E498BE76A0D3FE7CB4D2DFE39F878" pageId="7" type="distribution">
|
||
<paragraph id="8BAB1A00E76A0D3FE7CB4D2DFE39F878" blockId="7.[151,1437,1389,2027]" pageId="7">
|
||
<emphasis id="B960C612E76A0D3FE7CB4D2DFE9BF8C8" bold="true" box="[199,353,1856,1883]" pageId="7">Distribution.</emphasis>
|
||
Known only from a single specimen collected off
|
||
<collectingRegion id="49D0D4E2E76A0D3FE4974D2CFBF5F8C8" box="[923,1039,1857,1883]" country="United States of America" name="California" pageId="7">California</collectingRegion>
|
||
,
|
||
<collectingCountry id="F3035A90E76A0D3FE3164D2CFBBCF8C8" box="[1050,1094,1857,1883]" name="United States of America" pageId="7">U.S.</collectingCountry>
|
||
A at a depth of
|
||
<quantity id="4CECB7E5E76A0D3FE3F54D2CFAABF8C8" box="[1273,1361,1857,1883]" metricMagnitude="3" metricUnit="m" metricValue="3.323" pageId="7" unit="m" value="3323.0">3323 m</quantity>
|
||
. However, an
|
||
<emphasis id="B960C612E76A0D3FE7F84D0BFEC2F8EC" box="[244,312,1894,1919]" italics="true" pageId="7">in situ</emphasis>
|
||
video frame grab of a
|
||
<taxonomicName id="4C146183E76A0D3FE53D4D0BFD46F8EC" box="[561,700,1894,1919]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="genus">
|
||
<emphasis id="B960C612E76A0D3FE53D4D0BFD46F8EC" box="[561,700,1894,1919]" italics="true" pageId="7">Bargmannia</emphasis>
|
||
</taxonomicName>
|
||
colony (
|
||
<figureCitation id="132F0685E76A0D3FE4104D08FC81F8EC" box="[796,891,1893,1919]" captionStart="FIGURE 8" captionStartId="8.[151,250,609,634]" captionTargetId="figure@8.[340,1247,255,587]" captionTargetPageId="8" captionText="FIGURE 8. In situ frame grab of specimen from Tiburon Dive 853." figureDoi="http://doi.org/10.5281/zenodo.3497175" httpUri="https://zenodo.org/record/3497175/files/figure.png" pageId="7">Figure 8</figureCitation>
|
||
) seen but not collected was taken during
|
||
<emphasis id="B960C612E76A0D3FE2494D08FA67F8EC" box="[1349,1437,1893,1919]" italics="true" pageId="7">Tiburon</emphasis>
|
||
Dive 853, on
|
||
<date id="FFAA3CC0E76A0D3FE6394DE4FE2AF830" box="[309,464,1927,1955]" pageId="7" value="2005-06-07">
|
||
7
|
||
<superScript id="7C61B748E76A0D3FE64F4DEAFEAAF806" attach="left" box="[323,336,1927,1941]" fontSize="6" pageId="7">th</superScript>
|
||
June 2005
|
||
</date>
|
||
, position
|
||
<geoCoordinate id="EE207CC7E76A0D3FE54C4DE4FD3CF830" box="[576,710,1929,1955]" degrees="37" direction="north" minutes="06.67" orientation="latitude" pageId="7" precision="9" value="37.111168">37°06.67’N</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="EE207CC7E76A0D3FE5DF4DE5FC93F830" box="[723,873,1928,1955]" degrees="123" direction="west" minutes="57.98" orientation="longitude" pageId="7" precision="9" value="-123.96633">123°57.98’W</geoCoordinate>
|
||
, and at the very similar depth of
|
||
<quantity id="4CECB7E5E76A0D3FE3E64DE4FABBF830" box="[1258,1345,1929,1955]" metricMagnitude="3" metricUnit="m" metricValue="3.242" pageId="7" unit="m" value="3242.0">3242 m</quantity>
|
||
(
|
||
<figureCitation id="132F0685E76A0D3FE25D4DE4FF5FF854" captionStart="FIGURE 8" captionStartId="8.[151,250,609,634]" captionTargetId="figure@8.[340,1247,255,587]" captionTargetPageId="8" captionText="FIGURE 8. In situ frame grab of specimen from Tiburon Dive 853." figureDoi="http://doi.org/10.5281/zenodo.3497175" httpUri="https://zenodo.org/record/3497175/files/figure.png" pageId="7">Figure 8</figureCitation>
|
||
) appeared to be very similar to the
|
||
<typeStatus id="54AFA4A2E76A0D3FE53B4DC0FD9DF854" box="[567,615,1965,1991]" pageId="7">type</typeStatus>
|
||
specimen of
|
||
<taxonomicName id="4C146183E76A0D3FE5F34DC3FC02F854" authorityName="Pugh" authorityYear="2019" box="[767,1016,1965,1991]" class="Hydrozoa" family="Pyrostephidae" genus="Bargmannia" kingdom="Animalia" order="Siphonophorae" pageId="7" phylum="Cnidaria" rank="species" species="profunda">
|
||
<emphasis id="B960C612E76A0D3FE5F34DC3FC02F854" box="[767,1016,1965,1991]" italics="true" pageId="7">Bargmannia profunda</emphasis>
|
||
</taxonomicName>
|
||
sp nov, but as it was not collected its identity remains uncertain.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30E498BE7650D30E7CB4AF4FDE6FF44" pageId="8" type="etymology">
|
||
<paragraph id="8BAB1A00E7650D30E7CB4AF4FDE6FF44" blockId="8.[151,1436,153,215]" pageId="8">
|
||
<emphasis id="B960C612E7650D30E7CB4AF4FEB4FF20" bold="true" box="[199,334,153,179]" pageId="8">Etymology.</emphasis>
|
||
The name is derived from the Latin
|
||
<emphasis id="B960C612E7650D30E5F34AF4FC8AFF20" box="[767,880,153,179]" italics="true" pageId="8">profundus</emphasis>
|
||
, meaning deep and reflecting the great depth at which the specimen was collected.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |