334 lines
36 KiB
XML
334 lines
36 KiB
XML
<document id="40A35FE640A5F022CB17150B6BF51552" ID-CLB-Dataset="299632" ID-DOI="10.3897/zookeys.1206.123364" ID-GBIF-Dataset="4758ce95-0278-434a-bb46-4784c60babbf" ID-ZooBank="13D643CF-1841-4C11-B1FB-7B6737A943A2" ID-publisher-id="123364" URI-arpha="E2E556CB-CDA0-5869-A660-A4F499D9F3D2" URI-zoobank="http://zoobank.org/13D643CF-1841-4C11-B1FB-7B6737A943A2" XM.bibliography_approvedBy="admin" XM.materialsCitations_approvedBy="admin" article-type="research-article" checkinTime="1720455923955" checkinUser="pensoft" docAuthor="Kremenetskaia, Antonina, Alvestad, Tom, Penney, Heather D., Hamel, Jean-François, de Moura Neves, Bárbara, Côté, David & Mercier, Annie" docDate="2024" docId="9B64AAFEBD5356978C2AD3FE095FFB90" docLanguage="en" docName="ZooKeys 1206: 191-206" docOrigin="ZooKeys 1206" docSource="https://zookeys.pensoft.net/article/123364/download/xml/" docStyle="DocumentStyle:PensoftTaxPub.0000.journal_article.generic" docStyleName="PensoftTaxPub.0000.journal_article.generic" docTitle="Pseudothyone labradorensis Kremenetskaia, Alvestad, Penney, Hamel, Neves, Côté & Mercier, 2024, sp. nov." docType="treatment" docUuid="B4110DB7-0589-4A96-BC32-344F56ABF794" docUuidSource="ZooBank" docVersion="5" dtd-version="3.0" lastPageNumber="206" masterDocId="E2E556CBCDA05869A660A4F499D9F3D2" masterDocTitle="A new species of holothuroid from the Labrador Sea (eastern Canada): Pseudothyone labradorensis sp. nov. (Echinodermata, Holothuroidea, Dendrochirotida, Sclerodactylidae)" masterLastPageNumber="206" masterPageNumber="191" pageNumber="191" updateTime="1720529271353" updateUser="ExternalLinkService">
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<mods:titleInfo id="81A3A6184987E26C957E18C53D405AAC">
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<mods:title id="B25C5CCC2EE8A6FCD239480ACED37EBD">A new species of holothuroid from the Labrador Sea (eastern Canada): Pseudothyone labradorensis sp. nov. (Echinodermata, Holothuroidea, Dendrochirotida, Sclerodactylidae)</mods:title>
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</mods:titleInfo>
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<mods:name id="2664668579999AE18DED2F69092D5203" type="personal">
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<mods:roleTerm id="EA8395D90FBA9701E332748680AD19E3">Author</mods:roleTerm>
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<mods:namePart id="36A521A940AC7267DB4D682A41E91A6D">Kremenetskaia, Antonina</mods:namePart>
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<mods:nameIdentifier id="213FD289F192165DF44032537B11F091" type="ORCID">0000-0001-8851-3318</mods:nameIdentifier>
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<mods:affiliation id="A938478460AF97312D9DA5B54EB9CFF4">Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia</mods:affiliation>
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</mods:name>
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<mods:name id="B6614ED599C4E1CA5F0C8D08BAD90882" type="personal">
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<mods:roleTerm id="7E7F90AE4C322C38E7A60CDEA49C4770">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="A4D5B6C65BCBC78CABAF904A1D1E02A9">Alvestad, Tom</mods:namePart>
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<mods:nameIdentifier id="4B82416718B092EB94E3F018B79E3714" type="ORCID">0000-0003-0204-2936</mods:nameIdentifier>
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<mods:affiliation id="9339E20A64FE8248EDB97178FCB9985E">Department of Natural History, University Museum of Bergen, University of Bergen, Bergen, Norway</mods:affiliation>
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</mods:name>
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<mods:name id="829186263126DE168FA04E0D9D1ED885" type="personal">
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<mods:role id="61584699A612380A7F4FF4381F46DEB2">
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<mods:roleTerm id="30419A1E583362DE9193543BE3524B38">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="927E9961A3B8DAE9EDD01FD635C072B7">Penney, Heather D.</mods:namePart>
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<mods:nameIdentifier id="D826A3856D3627C0F0B42658B92178AA" type="ORCID">0000-0001-7259-3931</mods:nameIdentifier>
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<mods:affiliation id="1987FA2CC58CE13506D78354A5FE37E1">Department of Ocean Sciences, Memorial University, St. John’s, Newfoundland and Labrador, Canada & Aquatic Resources Program, St. Francis Xavier University, Antigonish, Nova Scotia, Canada</mods:affiliation>
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</mods:name>
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<mods:name id="7CADFC555AD52C5794392A6A3F8935A4" type="personal">
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<mods:roleTerm id="9C5167D1ECF2758A6024C9E145B88A30">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="B7D5048A963C9E9E2512EECD5172B986">Hamel, Jean-François</mods:namePart>
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<mods:nameIdentifier id="2120EDC55319BF21E469F0BA84E31125" type="ORCID">0000-0002-0435-4127</mods:nameIdentifier>
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<mods:affiliation id="A8FB0F581C12F9C1DCE74927F0DC4FFA">Society for the Exploration and Valuing of the Environment (SEVE), St. Philips, Newfoundland and Labrador, Canada</mods:affiliation>
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</mods:name>
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<mods:name id="7F9A5497545BF3B35CA6D3A1B0C4A061" type="personal">
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<mods:roleTerm id="81DA731279A8CC064D6DC617F1D6AAA2">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="36FE57CB6D79531E6B176033E44390BC">de Moura Neves, Bárbara</mods:namePart>
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<mods:nameIdentifier id="7C1ED2FBB38E36C74C24299F9E410C04" type="ORCID">0000-0003-2316-9223</mods:nameIdentifier>
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<mods:affiliation id="7218442AF7A346788FE7CA149E620C84">Northwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, St. John’s, Newfoundland and Labrador, Canada</mods:affiliation>
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</mods:name>
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<mods:name id="E79C5D65407C69AEBE7ABEEE46793222" type="personal">
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<mods:roleTerm id="A0A909CCD86BBD009E6FE21E6A91D0DC">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="17806AC8597A1AF07722D111B1F676D2">Côté, David</mods:namePart>
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<mods:nameIdentifier id="4540C8F56308B27E8FEE7AE66D4994C6" type="ORCID">0000-0002-5805-5077</mods:nameIdentifier>
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<mods:affiliation id="6CC19B954ECD4CDC533B8BC5D202FAFA">Northwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, St. John’s, Newfoundland and Labrador, Canada</mods:affiliation>
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</mods:name>
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<mods:name id="70CB2492BD45C8ABD4FFA9D399C3842D" type="personal">
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</mods:role>
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<mods:namePart id="AF71CE8140906EC03A63AB530F6629B2">Mercier, Annie</mods:namePart>
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<mods:nameIdentifier id="59F78BA394831386EFA82B12B3DE9439" type="ORCID">0000-0003-0807-2378</mods:nameIdentifier>
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<mods:affiliation id="1E9BD4B3D597ECDF7EF7DC9D26472B47">Department of Ocean Sciences, Memorial University, St. John’s, Newfoundland and Labrador, Canada</mods:affiliation>
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</mods:name>
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<mods:typeOfResource id="FAB65A7E847A2444E5A1BC095F390CAB">text</mods:typeOfResource>
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<mods:titleInfo id="BD9A8D37F155DB27BE58F6050E2D78CA">
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<mods:title id="3950CF43DD86FCAD403F1F8B0AF07CD7">ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part id="232A516711257FBB9D6809D5388015DB">
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<mods:date id="2328783DCE51749E4A2245C195A89511">2024</mods:date>
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<mods:detail id="1036F7758D53C65897CE69DB01874CAB" type="pubDate">
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<mods:number id="D5CB0B617CD2EDF67463F4A9837079BD">2024-07-08</mods:number>
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</mods:detail>
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<mods:detail id="C2F7BF954065D6222A1D9E620CD63514" type="volume">
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<mods:number id="15994A2B52A6BDDC4186C89B02FF05FB">1206</mods:number>
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</mods:detail>
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<mods:extent id="8D7E23892B31237EF5561EFA0D985031" unit="page">
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<mods:start id="B494EAA32C3403625CEB28117E65FC91">191</mods:start>
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<mods:end id="5280562A6689FFDE8F4779D725A16A2E">206</mods:end>
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</mods:extent>
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</mods:part>
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<mods:classification id="33356B2076705A6485D9816E8DD5EBE9">journal article</mods:classification>
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<mods:identifier id="016BF1B2165FFFF873845233692FD4BB" type="CLB-Dataset">299632</mods:identifier>
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<mods:identifier id="770AA95E88974D5599A0BC3C71A55B3D" type="DOI">10.3897/zookeys.1206.123364</mods:identifier>
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<mods:identifier id="8EDD0DC9A354996161F2FEBB1C686B2B" type="GBIF-Dataset">4758ce95-0278-434a-bb46-4784c60babbf</mods:identifier>
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<mods:identifier id="B43895C31EDB06E4A9CFC6FD4880D1E5" type="ZooBank">13D643CF-1841-4C11-B1FB-7B6737A943A2</mods:identifier>
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</mods:mods>
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<treatment id="9B64AAFEBD5356978C2AD3FE095FFB90" ID-DOI="http://doi.org/10.5281/zenodo.12689200" ID-GBIF-Taxon="235019278" ID-Zenodo-Dep="12689200" ID-arpha="9B64AAFE-BD53-5697-8C2A-D3FE095FFB90" ID-zoobank="https://www.zoobank.org/B4110DB7-0589-4A96-BC32-344F56ABF794" LSID="urn:lsid:zoobank.org:act:B4110DB7-0589-4A96-BC32-344F56ABF794" LSID-ZBK="urn:lsid:zoobank.org:act:B4110DB7-0589-4A96-BC32-344F56ABF794" httpUri="http://treatment.plazi.org/id/9B64AAFEBD5356978C2AD3FE095FFB90">
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||
<subSubSection id="A8F59C416C79B4F5289F716E5B68DA08" type="nomenclature">
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||
<paragraph id="D094F0EBCF81C673E5B816FBC5FDB56A">
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||
<taxonomicName id="423265F83068F38F29520E50796BC652" authorityName="Kremenetskaia & Alvestad & Penney & Hamel & de Moura Neves & Côté & Mercier" authorityYear="2024" class="Holothuroidea" family="Sclerodactylidae" genus="Pseudothyone" kingdom="Animalia" order="Dendrochirotida" phylum="Echinodermata" rank="species" species="labradorensis" status="sp. nov.">
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||
<emphasis id="542D4E1302673844D4842F8605D87A2D" italics="true">Pseudothyone labradorensis</emphasis>
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||
</taxonomicName>
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||
<taxonomicNameLabel id="E7C9BDCBA174BC6555669F3AE99A99B0" rank="species">sp. nov.</taxonomicNameLabel>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="7B53E4B3CC24A7FE014B1DF7B2D50EE6" type="description">
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||
<paragraph id="0E530EC462E7FFD193BA4F55359CBA07">
|
||
<figureCitation id="FCFE24F844270FEC6170EF835354E34B" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">Figs 2</figureCitation>
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||
,
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||
<figureCitation id="E8CFAE98210904D1413EF9962660D6BB" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Ossicles of Pseudothyone labradorensis sp. nov. A, D body-wall perforated plates B introvert perforated plates C tentacle rods E tube foot rods and terminal plate F right dorsal radial (r) and interradial (ir) segments of calcareous ring. A, B, C SEM images D, E light microscope images F drawing." figureDoi="10.3897/zookeys.1206.123364.figure3" httpUri="https://binary.pensoft.net/fig/1087344">3</figureCitation>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="SECID0ECIBG" type="type material">
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||
<paragraph id="A718EA7F5C75B53732D7D7669510B1F3">
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||
<heading id="65D67970793617B17C489ABB17718B53" reason="title">Type material.</heading>
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||
</paragraph>
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||
<paragraph id="38ECACAA7FA0BBA7FA462BD5D867BFD4">
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||
<materialsCitation id="7AB4EF75FBE56158991E3B87EA62CE43" ID-GBIF-Occurrence="4904452301" collectedFrom="substratum primarily mud with sparse rocks" collectingDate="2020-08-30" collectingMethod="rock dredge" collectionCode="IORAS" country="Canada" elevation="855" latitude="56.5" location="Labrador Sea" longLatPrecision="63" longitude="-58.084" specimenCode="ECH 02801, AMLAB- 02" specimenCount="1" typeStatus="holotype">
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||
<emphasis id="E758EF64766E99C006454C2AF018E8F9" bold="true">
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||
<emphasis id="BDB9A8A89965F8B6A23F0F9C055254E5" bold="true" italics="true">
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||
<typeStatus id="E2F26F151DF062C229D8BF133470B355" type="holotype">Holotype</typeStatus>
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</emphasis>
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.
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</emphasis>
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<collectingCountry id="69FCD67CF4D588A9E3BBBB53F7AF6708" name="Canada">Canada</collectingCountry>
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•
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<quantity id="97C4A2BDE22BA85FAA1EE1E3606D5411" metricMagnitude="-3" metricUnit="m" metricValue="9.5" unit="mm" value="9.5">9.5 mm</quantity>
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in length;
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||
<location id="A4CA2812728A1E89C6C95910300EC749" LSID="urn:lsid:plazi:treatment:9B64AAFEBD5356978C2AD3FE095FFB90:A4CA2812728A1E89C6C95910300EC749" country="Canada" latitude="56.5" longLatPrecision="63" longitude="-58.084" name="Labrador Sea">Labrador Sea</location>
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,
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||
<named-content content-type="dwc:verbatimCoordinates" id="NCID0EQIBG" specific-use="{"type":"Point","coordinates":[-58.084000,56.500000]}">
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<geoCoordinate id="9BB9DAC484BB58C156CF1F128F571D26" degrees="56.500" direction="north" orientation="latitude" precision="55" value="56.5">56.500</geoCoordinate>
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||
,
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<geoCoordinate id="E02C95CD04CBB651BC2DD929CB299017" degrees="58.084" direction="west" orientation="longitude" precision="55" value="-58.084">- 58.084</geoCoordinate>
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</named-content>
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, depth
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<quantity id="C94A1B6887719A0E6C2B0EDC7D45F268" metricMagnitude="2" metricUnit="m" metricValue="8.545" metricValueMax="9.69" metricValueMin="7.4" unit="m" value="854.5" valueMax="969.0" valueMin="740.0">
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||
<elevation id="38B3D1C16F41375D30564C851AC3B7D9" metricMagnitude="2" metricUnit="m" metricValue="8.545" metricValueMax="9.69" metricValueMin="7.4" unit="m" value="854.5" valueMax="969.0" valueMin="740.0">740–969 m</elevation>
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</quantity>
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(between bottom and recovery);
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||
<date id="43333C07948B53BED2D90738638CAFDF" value="2020-08-30">
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<collectingDate id="2FD79D0638AEDC1C5E5C1544D46BE97E" value="2020-08-30">30 Aug. 2020</collectingDate>
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</date>
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; Station ISECOLD - 0-1000;
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<collectingMethod id="6A14DA34E5F9083DB491F37F4C546668">rock dredge</collectingMethod>
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;
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<collectedFrom id="790130F9240322859DE4D06F3C0899BA">substratum primarily mud with sparse rocks</collectedFrom>
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||
;
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||
<abbrev id="ABBRID0EVIBG" xlink_title="Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia">
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<collectionCode id="A8FB8252F862169E271B73B3CB22897F">IORAS</collectionCode>
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||
</abbrev>
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<specimenCode id="30E175C50E4B66743E75438DDBA7A501" collectionCode="IORAS">ECH 02801</specimenCode>
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, ID
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<specimenCode id="C807888EAE3B04FCD5DE5D56D73D06EF">AMLAB- 02</specimenCode>
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||
</materialsCitation>
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||
.
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||
<materialsCitation id="82938EC6B39F655C4C8983A65246138B" ID-GBIF-Occurrence="4904452302" collectedFrom="substratum primarily mud with sparse rocks" collectingDate="2020-08-30" collectingMethod="rock dredge" collectionCode="IORAS" country="Canada" elevation="855" latitude="56.5" location="Canada" longLatPrecision="63" longitude="-58.084" specimenCode="ECH 02802, PT 1210" specimenCount="1" typeStatus="paratype">
|
||
<emphasis id="AE8B24AD814E59ECFC529AB97A214F06" bold="true">
|
||
<emphasis id="6BE922A61E7A38370F3B5FF8D099F58F" bold="true" italics="true">
|
||
<typeStatus id="AC5D995CB684B694132393BCD5F15207" type="paratype">Paratype</typeStatus>
|
||
</emphasis>
|
||
.
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||
</emphasis>
|
||
<collectingCountry id="D98873DE0FA57031C8D00FDAA807BCC9" name="Canada">Canada</collectingCountry>
|
||
•
|
||
<quantity id="9702D7A1E9650334749770E984788700" metricMagnitude="-2" metricUnit="m" metricValue="1.4" unit="mm" value="14.0">14 mm</quantity>
|
||
in length, collected at same time and locality as holotype;
|
||
<abbrev id="ABBRID0E4IBG" xlink_title="Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia">
|
||
<collectionCode id="49CF9FAD6E1B823F268FDA817B00E956">IORAS</collectionCode>
|
||
</abbrev>
|
||
<specimenCode id="D338A8A9BE9127E0B8D88742D6F09712" collectionCode="IORAS">ECH 02802</specimenCode>
|
||
, ID
|
||
<specimenCode id="7702E30ADAE042B5C2D0DC2B071CAA39">PT 1210</specimenCode>
|
||
</materialsCitation>
|
||
. Both
|
||
<typeStatus id="06A0891CAF7661242A3EF82BF99CD6CE" type="holotype">holotype</typeStatus>
|
||
and
|
||
<typeStatus id="55866E477CD26DF91087A3BF206347D5" type="paratype">paratype</typeStatus>
|
||
are preserved and stored in 96 % ethanol.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="SECID0EBJBG" type="diagnosis">
|
||
<paragraph id="AC7A217705BD05F087260C166B3CB56C">
|
||
<heading id="B1DABA0C9762F2E1971402F87782F566" reason="title">Diagnosis.</heading>
|
||
</paragraph>
|
||
<paragraph id="ED980599E55DB96BBF76602C6C8CA259">Body curved, cylindrical, tapered at anterior and posterior ends. Body colour in vivo pinkish. Tentacles 10, two ventral tentacles smaller. Tube feet arranged in several rows along radii, also present in interradii and on tapered posterior part of body. Body-wall ossicles slightly concave plates of irregular shape with smooth margins and perforations. Ossicles of tube feet rod-shaped; terminal plate irregular in shape; rods not numerous, smooth, with enlarged tuberculous ends. Tentacle ossicles rods with enlarged perforated ends. Segments of calcareous ring with undivided posterior projections.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="SECID0EGJBG" type="description">
|
||
<paragraph id="FA89D837DDF308AB6BCB00DB822FCC5D">
|
||
<heading id="B20B0F543883371F4A39DB633121E500" reason="title">Description.</heading>
|
||
</paragraph>
|
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<paragraph id="CAD1A848B04113C71AC75D5ADDC5A47A">
|
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Body curved towards dorsal side, wider and cylindrical in the middle, anterior end tapered towards terminal mouth, posterior end tapered to a ‘ tail’ towards terminal anus, ‘ tail’ short, more prominent in
|
||
<typeStatus id="D3FFFFA944BBFA25768D520EE754E5AD" type="paratype">paratype</typeStatus>
|
||
and short in
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||
<typeStatus id="132206F084D9F4253C924357C86D2BD6" type="holotype">holotype</typeStatus>
|
||
(Fig.
|
||
<figureCitation id="80545313E14138FE20273B3DB777D129" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 A – D</figureCitation>
|
||
). Body colour pinkish in living specimens (Fig.
|
||
<figureCitation id="7ED74DE6A1948C5F84427A7E5C687841" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 A, B</figureCitation>
|
||
), tentacles, tube feet and ‘ tail’ more brightly coloured; colour in ethanol uniformly greyish, tentacles and tube feet whitish or greyish (Fig.
|
||
<figureCitation id="AE267AFD12A058A26424A283B547FCB6" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 C, D</figureCitation>
|
||
). Body length
|
||
<quantity id="98CD1F0D816F5058DDDE215F550A6E53" metricMagnitude="-3" metricUnit="m" metricValue="9.5" unit="mm" value="9.5">9.5 mm</quantity>
|
||
in
|
||
<typeStatus id="0330E2050F5319586E2F0879F04C55A3" type="holotype">holotype</typeStatus>
|
||
,
|
||
<quantity id="38BE65DDB3F4F28F40154804CFC9FA5D" metricMagnitude="-2" metricUnit="m" metricValue="1.4" unit="mm" value="14.0">14 mm</quantity>
|
||
in
|
||
<typeStatus id="2A2151121070D4D2061E46E0131C195C" type="paratype">paratype</typeStatus>
|
||
. Body-wall skin thin, rough, non-transparent, with dense layer of scale-like ossicles (Fig.
|
||
<figureCitation id="3A85B1DC5B04D1E78314D4F39FED25ED" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 G</figureCitation>
|
||
). Tentacles (examined in
|
||
<typeStatus id="7531211FA29FD23A88D1A46F9162120A" type="holotype">holotype</typeStatus>
|
||
, in
|
||
<typeStatus id="195ACC3C12722332D73E4BDCF0E42002" type="paratype">paratype</typeStatus>
|
||
they were partly retracted) ten, two ventral tentacles remarkably smaller in size. Tube feet small (Fig.
|
||
<figureCitation id="ABEAF42BCC23B7B32DF50F1C8BF208B7" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 F</figureCitation>
|
||
), non-transparent in ethanol, arranged in several rows along radii and also scattered in interradii; tube feet more numerous on mid body, along ventrolateral and mid-ventral radii; on ‘ tail’ tube feet smaller and less numerous, arranged in double rows (Fig.
|
||
<figureCitation id="D99D89F792F7B9E256D4865BA964CB2B" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 E</figureCitation>
|
||
). Anal papillae five (Fig.
|
||
<figureCitation id="1BAF6C9F3A851F11304756BD873CFAB7" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 E</figureCitation>
|
||
). Pieces of calcareous ring up to
|
||
<quantity id="58574620A8FED38D4702D9FD55C9C874" metricMagnitude="-3" metricUnit="m" metricValue="1.6" unit="mm" value="1.6">1.6 mm</quantity>
|
||
in length, united at most their length, radial segments with undivided posterior projections, with forked grooved anterior projections; interradial segments with grooved anterior projections (Fig.
|
||
<figureCitation id="C378CDAABFAFC8408539419B35326738" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 H, I</figureCitation>
|
||
). Retractor muscles undivided, not flat, broader anteriorly (Fig.
|
||
<figureCitation id="BEA816559615E438B146A0EF34166F2D" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 I</figureCitation>
|
||
). Polian vesicle single, non-divided (Fig.
|
||
<figureCitation id="3AA3C85BD8B79DE53A3CD5EAB79ECB90" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 I</figureCitation>
|
||
). Gonad in a tuft (Fig.
|
||
<figureCitation id="A910EA64E9AB0C90F049B1134A3D9341" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudothyone labradorensis sp. nov., external and internal morphology A, C holotype, before preservation (A) and preserved in ethanol (C) B, D paratype, before preservation (B), in ethanol (D) E tapered posterior body part in paratype F tube feet in holotype G body-wall skin with dense layer of ossicles H segments of calcareous ring in holotype I dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle." figureDoi="10.3897/zookeys.1206.123364.figure2" httpUri="https://binary.pensoft.net/fig/1087343">2 I</figureCitation>
|
||
), gonad tubules in
|
||
<typeStatus id="BC3CA210F92FEAE0B7227F1DB8F8171E" type="paratype">paratype</typeStatus>
|
||
with oocytes of different size.
|
||
</paragraph>
|
||
<caption id="589E2B7B75529D41332B9C52D22F406F" ID-DOI="10.3897/zookeys.1206.123364.figure2" ID-arpha="ADB4AD77-0667-5111-BBE1-33446F33E44B" httpUri="https://binary.pensoft.net/fig/1087343" startId="F2">
|
||
<paragraph id="99A9D827BA63DA77802557325BF8D9E9">
|
||
<label id="806B21ED4E49F2F7F7A8501F7AE8124E">Figure 2.</label>
|
||
</paragraph>
|
||
<paragraph id="35494F9FF3B167FA5628DBB9D9B917D6">
|
||
<taxonomicName id="93A7EB170BA6B8B9AC4AC4A599B52EE4" authorityName="Kremenetskaia & Alvestad & Penney & Hamel & de Moura Neves & Côté & Mercier" authorityYear="2024" class="Holothuroidea" family="Sclerodactylidae" genus="Pseudothyone" kingdom="Animalia" order="Dendrochirotida" phylum="Echinodermata" rank="species" species="labradorensis" status="sp. nov.">
|
||
<emphasis id="22AE556D2329D7D8B2B5EFA3C10E55A9" italics="true">Pseudothyone labradorensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="2AD66732DD1897457433454D8FC2670B" rank="species">sp. nov.</taxonomicNameLabel>
|
||
, external and internal morphology
|
||
<emphasis id="04CCC94CDEAFCD936B1A220DAB5CEE79" bold="true">A, C</emphasis>
|
||
holotype, before preservation (
|
||
<emphasis id="335C1790C36009672CB4CDAAE920BED2" bold="true">A</emphasis>
|
||
) and preserved in ethanol (
|
||
<emphasis id="42E3447F7E3E4EA210372B7EB089BFBD" bold="true">C</emphasis>
|
||
)
|
||
<emphasis id="0F50FA4D0355B0046C53EB0403B1C0E5" bold="true">B, D</emphasis>
|
||
paratype, before preservation (
|
||
<emphasis id="2EDAC5828E374AE49778AA18347109BF" bold="true">B)</emphasis>
|
||
, in ethanol (
|
||
<emphasis id="1E11F7245091850A83A2E5C4691442F3" bold="true">D</emphasis>
|
||
)
|
||
<emphasis id="36DB86CEB736A3863FF0EF9A3B36FF9E" bold="true">E</emphasis>
|
||
tapered posterior body part in paratype
|
||
<emphasis id="CCEB73AA17D048CED2F959CA340EBD21" bold="true">F</emphasis>
|
||
tube feet in holotype
|
||
<emphasis id="6BC0812B2112E58D50A0DCD7B1606386" bold="true">G</emphasis>
|
||
body-wall skin with dense layer of ossicles
|
||
<emphasis id="7158A104293A182B4873AB81DA620994" bold="true">H</emphasis>
|
||
segments of calcareous ring in holotype
|
||
<emphasis id="EBBF5C01F12B13D72435702119B4200E" bold="true">I</emphasis>
|
||
dissected anterior part in paratype. Labels: ap anal papillae, g gonad, pv Polian vesicle, rm retractor muscle.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="9B10E84ED5212FC1A284A6B4B3ECF8F4">
|
||
Body-wall ossicles in a single dense overlapping layer, laying their concave side out; body-wall ossicles small perforated plates, usually do not exceed 200 µm in length, slightly concave, mostly irregular in shape, smooth; perforations with smooth margins, from rounded to oblong in shape, their size and shape can vary even on a same plate (Fig.
|
||
<figureCitation id="7A280C481C5939E3F3D38577E57403DA" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Ossicles of Pseudothyone labradorensis sp. nov. A, D body-wall perforated plates B introvert perforated plates C tentacle rods E tube foot rods and terminal plate F right dorsal radial (r) and interradial (ir) segments of calcareous ring. A, B, C SEM images D, E light microscope images F drawing." figureDoi="10.3897/zookeys.1206.123364.figure3" httpUri="https://binary.pensoft.net/fig/1087344">3 A, D</figureCitation>
|
||
). Introvert with bigger flat plates, plates often narrow and elongated (Fig.
|
||
<figureCitation id="7816495A880053AC2C7F36F0F3F070C9" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Ossicles of Pseudothyone labradorensis sp. nov. A, D body-wall perforated plates B introvert perforated plates C tentacle rods E tube foot rods and terminal plate F right dorsal radial (r) and interradial (ir) segments of calcareous ring. A, B, C SEM images D, E light microscope images F drawing." figureDoi="10.3897/zookeys.1206.123364.figure3" httpUri="https://binary.pensoft.net/fig/1087344">3 B</figureCitation>
|
||
). On tube feet supporting rod-shaped ossicles, not numerous, curved in shape, with slightly enlarged perforated ends, length 100–130 µm; terminal plate delicate, irregular in shape, ~ 70 µm in diameter (Fig.
|
||
<figureCitation id="521181094BAE6C8F6E147F0383F186FB" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Ossicles of Pseudothyone labradorensis sp. nov. A, D body-wall perforated plates B introvert perforated plates C tentacle rods E tube foot rods and terminal plate F right dorsal radial (r) and interradial (ir) segments of calcareous ring. A, B, C SEM images D, E light microscope images F drawing." figureDoi="10.3897/zookeys.1206.123364.figure3" httpUri="https://binary.pensoft.net/fig/1087344">3 E</figureCitation>
|
||
). Tentacle ossicles curved rods, most ossicles ranged 100–480 µm in length, bigger in proximal part of tentacles; smaller rods sometimes enlarged in the middle; bigger rods often with enlarged spatulated and / or bifurcated ends (Fig.
|
||
<figureCitation id="47B091AE071AE262B4220F34E3B02A22" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Ossicles of Pseudothyone labradorensis sp. nov. A, D body-wall perforated plates B introvert perforated plates C tentacle rods E tube foot rods and terminal plate F right dorsal radial (r) and interradial (ir) segments of calcareous ring. A, B, C SEM images D, E light microscope images F drawing." figureDoi="10.3897/zookeys.1206.123364.figure3" httpUri="https://binary.pensoft.net/fig/1087344">3 C</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="8663A3B5479FB9F09A98B55606CC1DCC" ID-DOI="10.3897/zookeys.1206.123364.figure3" ID-arpha="0CF449D3-6459-5475-9274-B854FA720A5E" httpUri="https://binary.pensoft.net/fig/1087344" startId="F3">
|
||
<paragraph id="6E012FE8DFC3D3FE9693930C37202F90">
|
||
<label id="CEB95DB085B2C078EBFC75D8A59598DE">Figure 3.</label>
|
||
</paragraph>
|
||
<paragraph id="2AF6D00E633DCDD2F472260398FF6254">
|
||
Ossicles of
|
||
<taxonomicName id="3DB3ABF945C376AF8601DC14B329D1BF" authorityName="Kremenetskaia & Alvestad & Penney & Hamel & de Moura Neves & Côté & Mercier" authorityYear="2024" class="Holothuroidea" family="Sclerodactylidae" genus="Pseudothyone" kingdom="Animalia" order="Dendrochirotida" phylum="Echinodermata" rank="species" species="labradorensis" status="sp. nov.">
|
||
<emphasis id="DC858BC1D66316037A16CFC6B8FBA14D" italics="true">Pseudothyone labradorensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="54649349B7456F1C700C6443C6178420" rank="species">sp. nov.</taxonomicNameLabel>
|
||
<emphasis id="CBCFEBCE7E59F6A6C577531CF812C8D8" bold="true">A, D</emphasis>
|
||
body-wall perforated plates
|
||
<emphasis id="1760A77B76CB49EC5CB0164B8AF21683" bold="true">B</emphasis>
|
||
introvert perforated plates
|
||
<emphasis id="7B2472F9DCC0CB7A90E19F8397781B10" bold="true">C</emphasis>
|
||
tentacle rods
|
||
<emphasis id="B9356BB45110DADEE1BE61DEB0890D68" bold="true">E</emphasis>
|
||
tube foot rods and terminal plate
|
||
<emphasis id="4000F70D0201E666A07062BCE9636CA3" bold="true">F</emphasis>
|
||
right dorsal radial (r) and interradial (ir) segments of calcareous ring.
|
||
<emphasis id="2982DDB3786663478C2C7EE598D0A798" bold="true">A, B, C</emphasis>
|
||
<abbrev id="ABBRID0EXNBG" xlink_title="scanning electronic microscopy">SEM</abbrev>
|
||
images
|
||
<emphasis id="0EC31E82578DC273F00DD52F161BA61B" bold="true">D, E</emphasis>
|
||
light microscope images
|
||
<emphasis id="ED8A6AD4A0A7BDBACC44D188927806FE" bold="true">F</emphasis>
|
||
drawing.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
<subSubSection id="SECID0EEOBG" type="Differential diagnosis">
|
||
<paragraph id="3E3FB9D6BC255B63C902B9395EA476FA">
|
||
<heading id="DA8502C2B46BA76F06F47CDD760D55A8" reason="title">Differential diagnosis.</heading>
|
||
</paragraph>
|
||
<paragraph id="3B843F642575886CFBE3F128E264264B">
|
||
<taxonomicName id="CD322EB56C3DF9526ACF71678812FC87" authorityName="Kremenetskaia & Alvestad & Penney & Hamel & de Moura Neves & Côté & Mercier" authorityYear="2024" class="Holothuroidea" family="Sclerodactylidae" genus="Pseudothyone" kingdom="Animalia" order="Dendrochirotida" phylum="Echinodermata" rank="species" species="labradorensis" status="sp. nov.">
|
||
<emphasis id="BFC7B79ADF3E8A3AABDED5E03AB2AF25" italics="true">Pseudothyone labradorensis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="4FEDE865DB37740BF98103D8506F0F76" rank="species">sp. nov.</taxonomicNameLabel>
|
||
can be distinguished from other species by a combination of the following characters: pinkish body colour (may disappear after preservation in ethanol); tube feet arranged in double rows on tapered posterior end; body-wall ossicles only perforated plates with smooth perforation margins; introvert ossicles perforated plates; tube foot ossicles rods and terminal plate of irregular shape.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="SECID0EVOBG" type="distribution">
|
||
<paragraph id="D1706577658FE9E07D07F7E0E410293B">
|
||
<heading id="4B7A97066F459B1121B038992B4C64CA" reason="title">Distribution.</heading>
|
||
</paragraph>
|
||
<paragraph id="62BD956C628B9EE85A733C62AA3C29AE">
|
||
<collectingCountry id="C668407ED690DAE7CF6A10FD7ED249B1" name="Canada">Canada</collectingCountry>
|
||
, Labrador Sea, depth
|
||
<quantity id="7BA6F48929CBED1CC8D998F34D7DBDE2" metricMagnitude="2" metricUnit="m" metricValue="8.545" metricValueMax="9.69" metricValueMin="7.4" unit="m" value="854.5" valueMax="969.0" valueMin="740.0">
|
||
740–
|
||
<specimenCount id="E56D9354EAFC57E150D28A557CED0BCE" count="969" type="generic">969 m.</specimenCount>
|
||
</quantity>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="SECID0E1OBG" type="etymology">
|
||
<paragraph id="6ACF1718D85B6408C5ADB4DAFCE4604F">
|
||
<heading id="0739097FF809EBFA82C69968558E70E9" reason="title">Etymology.</heading>
|
||
</paragraph>
|
||
<paragraph id="185ED87CC489AFCB45F1F27822D1DC40">The species is named after its type locality.</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |