249 lines
25 KiB
XML
249 lines
25 KiB
XML
<document id="AE055C6ABAC8D86A71998A6A2FDAF16C" ID-DOI="10.3897/zookeys.1221.128260" ID-ZooBank="EE34B942-57D8-456C-A6D5-F8046BB3A71E" ID-publisher-id="128260" URI-arpha="195259A7-123E-5C3B-92CB-85F177F902A1" URI-zoobank="http://zoobank.org/EE34B942-57D8-456C-A6D5-F8046BB3A71E" XM.bibliography_approvedBy="admin" XM.materialsCitations_approvedBy="admin" XM.taxonomicNames_approvedBy="admin" article-type="research-article" checkinTime="1734081380711" checkinUser="pensoft" docAuthor="Cuadrado, Daniel, Hernández-Gonzalez, Alejandro, Noreña, Carolina & Simões, Nuno" docDate="2024" docId="B4FEFFA45553582F915A3FE1AC16E0CE" docLanguage="en" docName="ZooKeys 1221: 103-144" docOrigin="ZooKeys 1221" docSource="https://zookeys.pensoft.net/article/128260/download/xml/" docStyle="DocumentStyle:PensoftTaxPub.0000.journal_article.generic" docStyleName="PensoftTaxPub.0000.journal_article.generic" docTitle="Stylochus sixteni Marcus 1947" docType="treatment" docVersion="2" dtd-version="3.0" lastPageNumber="144" masterDocId="195259A7123E5C3B92CB85F177F902A1" masterDocTitle="Polyclads (Platyhelminthes) in the southern Gulf of Mexico: unveiling biodiversity and descriptions of two new species" masterLastPageNumber="144" masterPageNumber="103" pageNumber="103" updateTime="1734631564605" updateUser="admin">
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<mods:titleInfo id="01CEE2691BC0E6C2A349D30E90C211DF">
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<mods:title id="0939DA2C53929C417CF7EAC5C52F3DB8">Polyclads (Platyhelminthes) in the southern Gulf of Mexico: unveiling biodiversity and descriptions of two new species</mods:title>
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<mods:name id="13097A815D78392D74BE0D3B83DAAA56" type="personal">
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<mods:roleTerm id="71DC494C4F32A3FCFD432F71CAF807F7">Author</mods:roleTerm>
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<mods:namePart id="A6D8C32FB222549FBDB87483D7D7046F">Cuadrado, Daniel</mods:namePart>
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<mods:nameIdentifier id="2B34D4F34F3D5B73D0A15D1F540C74B9" type="ORCID">0000-0001-5565-3023</mods:nameIdentifier>
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<mods:affiliation id="0120F9EF351DB14EADA05AC48E0FC969">Department of Biodiversity and Evolutionary Biology, National Museum of Natural Science, MNCN (CSIC), Madrid 28006, Spain</mods:affiliation>
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</mods:name>
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<mods:name id="B642B3079B169FC91CEAB98E312AEB06" type="personal">
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</mods:role>
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<mods:namePart id="5661E78DAB6A416AC6585919E309B39A">Hernández-Gonzalez, Alejandro</mods:namePart>
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<mods:nameIdentifier id="A531C12B52B3BC3B7EEB7BCAE2C8E70B" type="ORCID">0000-0002-1557-5582</mods:nameIdentifier>
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<mods:affiliation id="D541CCD46DE18A38919084CAFC26B7CE">Universidad Nacional Autónoma de México, Merida, Mexico</mods:affiliation>
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</mods:name>
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<mods:name id="0D6FE2BEFE63E16E04DBE40B684B5AB2" type="personal">
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</mods:role>
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<mods:namePart id="353463A3EA547415FC3C651E1F0C7E4E">Noreña, Carolina</mods:namePart>
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<mods:nameIdentifier id="2DFCBCC34A89D9EF487046CB99AD61AE" type="ORCID">0000-0002-4580-7460</mods:nameIdentifier>
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<mods:affiliation id="F76D0A52AC5370C744E955BA32BC9DEC">Department of Biodiversity and Evolutionary Biology, National Museum of Natural Science, MNCN (CSIC), Madrid 28006, Spain</mods:affiliation>
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</mods:name>
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</mods:role>
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<mods:namePart id="66E4AAEA722C46803C755509511DAF64">Simões, Nuno</mods:namePart>
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<mods:nameIdentifier id="75DC489F4BC9B02BA40D53C1C03911FA" type="ORCID">0000-0001-7490-3147</mods:nameIdentifier>
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<mods:affiliation id="2B4860FC48986C944845A6CEDCE52C1A">Universidad Nacional Autónoma de México, Merida, Mexico & Laboratorio Nacional de Resiliencia Costera, México, Mexico & International Chair for Coastal and Marine Studies, Harte Research Institute for Gulf of Mexico Studies, Corpus Christi, USA</mods:affiliation>
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<mods:title id="4BB186493B2990D9E8A7C23FD70351E0">ZooKeys</mods:title>
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<mods:part id="731DD96C7997463AA2F7AC32F867732B">
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<mods:date id="9F7BE1E807B736655220B54B285743C2">2024</mods:date>
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<mods:number id="D89FAC7FD21F286FFE825090F1303B8F">2024-12-13</mods:number>
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<mods:number id="FA67302E83F448758A869F05BDB231AB">1221</mods:number>
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<mods:start id="48601BA598C6F73D93E52F0A9675601F">103</mods:start>
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<mods:classification id="6A35C9FA66C92952555E59BC2C04B00E">journal article</mods:classification>
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<mods:identifier id="B28262D4EAD1D8796B5F7F9B96A4F7CC" type="DOI">10.3897/zookeys.1221.128260</mods:identifier>
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<mods:identifier id="7D927A412F31D4568CFA41362041B947" type="ZooBank">EE34B942-57D8-456C-A6D5-F8046BB3A71E</mods:identifier>
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</mods:mods>
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<treatment id="B4FEFFA45553582F915A3FE1AC16E0CE" ID-arpha="B4FEFFA4-5553-582F-915A-3FE1AC16E0CE" LSID="urn:lsid:plazi:treatment:B4FEFFA45553582F915A3FE1AC16E0CE" httpUri="http://treatment.plazi.org/id/B4FEFFA45553582F915A3FE1AC16E0CE" scope_family="Stylochidae" scope_order="Polycladida" scope_phylum="Platyhelminthes">
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<subSubSection id="509F35E3B421D3D81DD5F1CBDE1595B3" type="nomenclature">
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<paragraph id="C9B5CE43F3DC7FAA7673809BF8E558BC">
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<taxonomicName id="D53E60586EFE450771775E7D2CABAFCF" ID-CoL="539WP" authority="Marcus, 1947" authorityName="Marcus" authorityYear="1947" family="Stylochidae" genus="Stylochus" kingdom="Animalia" order="Polycladida" phylum="Platyhelminthes" rank="species" species="sixteni">
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<emphasis id="3C2DB4BD96D3316A20CE4DDB10DFFDA0" italics="true">Stylochus sixteni</emphasis>
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<bibRefCitation id="B10E5815BFD772DD3008DC807BE2467C" DOI="10.11606/issn.2526-4877.bsffclzoologia.1947.125220" author="Marcus E" journalOrPublisher="Boletins da Faculdade de Filosofia, Ciencias e Letras da Universidade de So Paulo Zoologia" pagination="99-215" refId="B39" refString="Marcus E (1947) Turbellarios Marinhos do Brasil (5). Boletins da Faculdade de Filosofia, Ciencias e Letras da Universidade de So Paulo Zoologia 12: 99 - 215. https: // doi. org / 10.11606 / issn. 2526 - 4877. bsffclzoologia. 1947.125220" title="Turbellarios Marinhos do Brasil (5)." volume="12" year="1947">Marcus, 1947</bibRefCitation>
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||
</taxonomicName>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="FA67BCDF0ACFCF0DC86F08F31066FD84" type="description">
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||
<paragraph id="FE5C6917F81D11EA8F0E60B72DA7CCB7">
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||
<figureCitation id="B8AE7DD2AFF42DFA54074E1DC6B7F4EB" captionStart="Figure 24" captionStartId="F24" captionText="Figure 24. Stylochus sixteni A live animal, photographed on a black background, tentacles B anterior end, marginal, cerebral and tentacular eyes, after fixation C sagittal section through the reproductive system (stained with AZAN) D specimen in situ E sagittal reconstruction of male and female copulatory organs." figureDoi="10.3897/zookeys.1221.128260.figure24" httpUri="https://binary.pensoft.net/fig/1197996">Fig. 24</figureCitation>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="SECID0ENMCI" type="material">
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||
<paragraph id="6842A2CAA096799D584A1F96EAD6B0EE">
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<heading id="E240543BA65D7BBA2B0CB4D44153CECF" reason="title">Material examined.</heading>
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||
</paragraph>
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||
<paragraph id="B44FEE390535A4C754DCE3D54782081E">
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||
<materialsCitation id="07980561CB4BA7275C98F6FAEFF9728E" collectingDate="2018-05-08" collectionCode="CRPPY" collectorName="A. Hernandez" country="Mexico" elevation="9" latitude="21.5" location="Dzilam" longLatPrecision="7587" longitude="-88.9" specimenCode="CRPPY-0090" specimenCount="1" stateProvince="Yucatan">
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||
<emphasis id="2269C59B6D28AF980267C4870D20E1BC" bold="true">
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||
<collectingRegion id="C584440CF3707AF0B0D6C5BF8D75C465" country="Mexico" name="Yucatan">Yucatan</collectingRegion>
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coast,
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<collectingCountry id="02BAEF878E5978BB36AF27A77D5A0DDA" name="Mexico">Mexico</collectingCountry>
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</emphasis>
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• 1;
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||
<location id="E4983FC29D7C5290006C980FCB542E5A" LSID="urn:lsid:plazi:treatment:B4FEFFA45553582F915A3FE1AC16E0CE:E4983FC29D7C5290006C980FCB542E5A" country="Mexico" latitude="21.5" longLatPrecision="7587" longitude="-88.9" name="Dzilam" stateProvince="Yucatan">Dzilam</location>
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||
;
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||
<named-content content-type="dwc:verbatimCoordinates" id="NCID0EYMCI" specific-use="{"type":"Point","coordinates":[-88.900000,21.500000]}">
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||
<geoCoordinate id="B98FCB7621606E2AEF221B6836A07BA3" degrees="21.5" direction="north" orientation="latitude" precision="5555" value="21.5">21.5°N</geoCoordinate>
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||
,
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<geoCoordinate id="28A80891B44E47E7490C95F727649D93" degrees="88.9" direction="west" orientation="longitude" precision="5555" value="-88.9">88.9°W</geoCoordinate>
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||
</named-content>
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||
;
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||
<quantity id="A09EBE10729457EDAC44B14720F7CBFA" metricMagnitude="0" metricUnit="m" metricValue="9.3" unit="m" value="9.3">
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||
<elevation id="9322046FE777FD213893CC099CEE9210" metricMagnitude="0" metricUnit="m" metricValue="9.3" unit="m" value="9.3">9.3 m</elevation>
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</quantity>
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;
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||
<date id="3F7BC8D3CF4C85F7CD8D810D31031107" value="2018-05-08">
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<collectingDate id="DB44E3EF28849ED95F6B8D3116E340EC" value="2018-05-08">8 May 2018</collectingDate>
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</date>
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;
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<collectorName id="75C52A6A36C61109A93921B2CFC903D1">A. Hernández</collectorName>
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leg.;
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<specimenCode id="4F33786D95FB3A79991A4FC85A1E1CEE">
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<abbrev content-type="institution" id="ABBRID0E4MCI" xlink_title="Colección regional de Policladidos de la Península del Yucatán, Mexico">CRPPY</abbrev>
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-0090
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||
</specimenCode>
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||
</materialsCitation>
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•
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<materialsCitation id="A5CBFC5DE1446808EF32721839C03DB9" collectingDate="2018-05-10" collectionCode="CRPPY" collectorName="A. Hernandez" country="Mexico" elevation="13" latitude="21.5" location="Dzilam" longLatPrecision="7587" longitude="-88.9" specimenCode="CRPPY-0099" specimenCount="1" stateProvince="Yucatan">
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1; 12 slides;
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||
<location id="427F5C03F488AC59913D932C6D83C46C" LSID="urn:lsid:plazi:treatment:B4FEFFA45553582F915A3FE1AC16E0CE:427F5C03F488AC59913D932C6D83C46C" country="Mexico" latitude="21.5" longLatPrecision="7587" longitude="-88.9" name="Dzilam" stateProvince="Yucatan">Dzilam</location>
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||
;
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||
<named-content content-type="dwc:verbatimCoordinates" id="NCID0EFNCI" specific-use="{"type":"Point","coordinates":[-88.900000,21.500000]}">
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||
<geoCoordinate id="52CBB0D3D3D116D1D5D92744B5606D06" degrees="21.5" direction="north" orientation="latitude" precision="5555" value="21.5">21.5°N</geoCoordinate>
|
||
,
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||
<geoCoordinate id="C3F9C3598CB8E474A28AEBF8FBDC802D" degrees="88.9" direction="west" orientation="longitude" precision="5555" value="-88.9">88.9°W</geoCoordinate>
|
||
</named-content>
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||
;
|
||
<quantity id="938C089E0D6B789F213FA9F69084ACD3" metricMagnitude="1" metricUnit="m" metricValue="1.3" unit="m" value="13.0">
|
||
<elevation id="4F3F6928CE99B42BAE7D5F5C179DF2E6" metricMagnitude="1" metricUnit="m" metricValue="1.3" unit="m" value="13.0">13 m</elevation>
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</quantity>
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||
;
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||
<date id="44FB9CBBFA3CB1D2BB0594AE9A047E7B" value="2018-05-10">
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<collectingDate id="1B4690C65C003FCEC32973AE90AF14A7" value="2018-05-10">10 May 2018</collectingDate>
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||
</date>
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;
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<collectorName id="588E5E28ABF5A4CA6CE3F496CEE958A9">A. Hernández</collectorName>
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leg.;
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<specimenCode id="F86DA58080C2976D0D2FD8DCBD0A0E0E">
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<abbrev content-type="institution" id="ABBRID0EKNCI" xlink_title="Colección regional de Policladidos de la Península del Yucatán, Mexico">CRPPY</abbrev>
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-0099
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</specimenCode>
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</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="SECID0EPNCI" type="distribution">
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<paragraph id="BAFBE07ECB2415B808D41A64CC4F3AD5">
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<heading id="802639383DA0D04C02922B02B5893F65" reason="title">Distribution.</heading>
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</paragraph>
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<paragraph id="3850B459F6B299399523FFB7AB769B46">
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The species was originally described in
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<collectingCountry id="EE7C762C4FB56B73AE8A2D1AFEFE9A41" name="Cape Verde">Cape Verde</collectingCountry>
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(
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<bibRefCitation id="AB306BD41B446F2020B0EDA1121357A2" author="Bock" firstAuthor="Bock" journalOrPublisher="Deutsche Südpolar-Expedition" pagination="259-304" refId="B8" refString="Bock S (1931) Die Polycladen der Deutschen Südpolar-Expedition 1901–1903. Deutsche Südpolar-Expedition 20: 259–304." title="Die Polycladen der Deutschen Südpolar-Expedition 1901-1903." volume="20" year="1931">Bock 1931</bibRefCitation>
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). New record for the Gulf of Mexico (Yucatan).
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</paragraph>
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</subSubSection>
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<subSubSection id="SECID0EZNCI" type="description">
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<paragraph id="DA3E0EB5B0143C857457AED5718DEA99">
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<heading id="82592E9A9784B338C49CA8B97B9062F0" reason="title">Description.</heading>
|
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</paragraph>
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<paragraph id="3A6B01E29646F2C609472928F420E004">
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Elongated oval body shape, firm and fleshy consistency. In live specimens, body measures
|
||
<quantity id="FA3E02669ACFFD274AF10C5F9ACD4AFE" metricMagnitude="-2" metricUnit="m" metricValue="2.0" unit="mm" value="20.0">20 mm</quantity>
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in length, and
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<quantity id="195B41F990997252AB41F192D8527843" metricMagnitude="-3" metricUnit="m" metricValue="7.0" unit="mm" value="7.0">7 mm</quantity>
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in width, whereas in fixed specimens, measures are reduced to
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<quantity id="C690D2EC5C61A720BC857E75D25FDCEB" metricMagnitude="-2" metricUnit="m" metricValue="1.0" unit="mm" value="10.0">10 mm</quantity>
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length, and
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<quantity id="265CC90E8958A5258E2BE23222945A3F" metricMagnitude="-3" metricUnit="m" metricValue="8.0" unit="mm" value="8.0">8 mm</quantity>
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in width. Rounded nuchal tentacles visible. Pale beige colouration, translucent near the margins. Small white spots, denser along the midline and a white dotted line along the entire body margin (Fig.
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<figureCitation id="C6CA2C5F407A739115330ACAD3EFE6F1" captionStart="Figure 24" captionStartId="F24" captionText="Figure 24. Stylochus sixteni A live animal, photographed on a black background, tentacles B anterior end, marginal, cerebral and tentacular eyes, after fixation C sagittal section through the reproductive system (stained with AZAN) D specimen in situ E sagittal reconstruction of male and female copulatory organs." figureDoi="10.3897/zookeys.1221.128260.figure24" httpUri="https://binary.pensoft.net/fig/1197996">24 A, D</figureCitation>
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||
). Two elongated clusters of cerebral eyes between nuchal tentacles. Densely packed tentacular eyes. Marginal eyes in the first 1 / 3 of the body, up to the level of the tentacles (Fig.
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<figureCitation id="C9CEC8E44C97E851D9065347C740F820" captionStart="Figure 24" captionStartId="F24" captionText="Figure 24. Stylochus sixteni A live animal, photographed on a black background, tentacles B anterior end, marginal, cerebral and tentacular eyes, after fixation C sagittal section through the reproductive system (stained with AZAN) D specimen in situ E sagittal reconstruction of male and female copulatory organs." figureDoi="10.3897/zookeys.1221.128260.figure24" httpUri="https://binary.pensoft.net/fig/1197996">24 B</figureCitation>
|
||
). Ruffled pharynx centrally located, oral opening at its centre.
|
||
<emphasis id="AEE3A2E38B11053D9989C46FA0A70C6B" bold="true">
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<emphasis id="7143E45AAF644417974C820DF51473E6" bold="true" italics="true">Reproductive system</emphasis>
|
||
.
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</emphasis>
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Male and female copulatory apparatus posterior to pharynx, near second 1 / 2 of body. Male apparatus comprises a free prostatic vesicle and a small kidney-shaped seminal vesicle. Ejaculatory duct penetrates through an anteroposterior-oriented penis papilla into the deep atrium. Penis papilla, small, conical. Male atrium heart-shaped, deep (Fig.
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<figureCitation id="010201EB5423535BB247851A4066D964" captionStart="Figure 24" captionStartId="F24" captionText="Figure 24. Stylochus sixteni A live animal, photographed on a black background, tentacles B anterior end, marginal, cerebral and tentacular eyes, after fixation C sagittal section through the reproductive system (stained with AZAN) D specimen in situ E sagittal reconstruction of male and female copulatory organs." figureDoi="10.3897/zookeys.1221.128260.figure24" httpUri="https://binary.pensoft.net/fig/1197996">24 C, E</figureCitation>
|
||
). Female apparatus simple, anteroposteriorly oriented, slightly muscular vagina, and small ciliated female atrium (Fig.
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<figureCitation id="50E9101D01791B487320A4B877E3DA59" captionStart="Figure 24" captionStartId="F24" captionText="Figure 24. Stylochus sixteni A live animal, photographed on a black background, tentacles B anterior end, marginal, cerebral and tentacular eyes, after fixation C sagittal section through the reproductive system (stained with AZAN) D specimen in situ E sagittal reconstruction of male and female copulatory organs." figureDoi="10.3897/zookeys.1221.128260.figure24" httpUri="https://binary.pensoft.net/fig/1197996">24 C, E</figureCitation>
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).
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</paragraph>
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</subSubSection>
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||
<subSubSection id="SECID0ETOCI" type="remarks">
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<paragraph id="26085F349A2A5B23F388D2E30AD2816A">
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||
<heading id="B1205233A91A4410C832022504FF4983" reason="title">Remarks.</heading>
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||
</paragraph>
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<paragraph id="90AE0718F273AE4B2057E525508D7B7B">
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To avoid confusion between
|
||
<taxonomicName id="70ADF1942D54C12098E086B7F31C7CB1" authority="Verrill, 1893" authorityName="Verrill" authorityYear="1893" family="Stylochidae" genus="Stylochus" kingdom="Animalia" order="Polycladida" phylum="Platyhelminthes" rank="species" species="crassus">
|
||
<emphasis id="CDC146BB682CB34EBC6E1922ACC20ECC" italics="true">Stylochus crassus</emphasis>
|
||
<bibRefCitation id="474F862360C13D97B9A0826932233002" author="Verrill AE" journalOrPublisher="Transactions of the Connecticut Academy of Arts and Science" pagination="459-520" refId="B73" refString="Verrill AE (1893) Marine planarians of New England. Transactions of the Connecticut Academy of Arts and Science 8: 459 - 520" title="Marine planarians of New England." volume="8" year="1893">Verrill, 1893</bibRefCitation>
|
||
</taxonomicName>
|
||
(from the coast of
|
||
<collectingRegion id="F001F92ACFDAAD94D0B96531DBED84B0" country="United States of America" name="Maryland">Maryland</collectingRegion>
|
||
,
|
||
<collectingCountry id="E64CB56286A69122E1F79F7A1C2424C8" name="United States of America">USA</collectingCountry>
|
||
) and
|
||
<taxonomicName id="EE0BA0F55EB45BA59291B50DC79C098C" authority="Bock, 1931" authorityName="Bock" authorityYear="1931" family="Stylochidae" genus="Stylochus" kingdom="Animalia" order="Polycladida" phylum="Platyhelminthes" rank="species" species="crassus">
|
||
<emphasis id="2158CC957A5158CDDEC3E70D35E4F55F" italics="true">S. crassus</emphasis>
|
||
<bibRefCitation id="89F8EA76AA024C428BBBE3CFBE7D6D15" author="Bock S" journalOrPublisher="Deutsche Südpolar-Expedition" pagination="259-304" refId="B8" refString="Bock S (1931) Die Polycladen der Deutschen Sudpolar-Expedition 1901 - 1903. Deutsche Sudpolar-Expedition 20: 259 - 304." title="Die Polycladen der Deutschen Südpolar-Expedition 1901-1903." volume="20" year="1931">Bock, 1931</bibRefCitation>
|
||
</taxonomicName>
|
||
(from the coast of
|
||
<collectingCountry id="949947AABDCE055AA8C2D1969B30C06C" name="Cape Verde Island">Cape Verde Island</collectingCountry>
|
||
),
|
||
<bibRefCitation id="94A041F507C826A0426FD7323C7BFF9E" DOI="10.11606/issn.2526-4877.bsffclzoologia.1947.125220" author="Marcus E" firstAuthor="Marcus" journalOrPublisher="Boletins da Faculdade de Filosofia, Ciencias e Letras da Universidade de So Paulo Zoologia" pagination="99-215" refId="B39" refString="Marcus E (1947) Turbellarios Marinhos do Brasil (5). Boletins da Faculdade de Filosofia, Ciencias e Letras da Universidade de So Paulo Zoologia 12: 99–215. https://doi.org/10.11606/issn.2526-4877.bsffclzoologia.1947.125220" title="Turbellarios Marinhos do Brasil (5)." volume="12" year="1947">Marcus (1947)</bibRefCitation>
|
||
renamed the specimens described by
|
||
<bibRefCitation id="31720315D7C134C9184F2E62F3E2488A" author="Bock S" firstAuthor="Bock" journalOrPublisher="Deutsche Südpolar-Expedition" pagination="259-304" refId="B8" refString="Bock S (1931) Die Polycladen der Deutschen Südpolar-Expedition 1901–1903. Deutsche Südpolar-Expedition 20: 259–304." title="Die Polycladen der Deutschen Südpolar-Expedition 1901-1903." volume="20" year="1931">Bock (1931)</bibRefCitation>
|
||
as
|
||
<taxonomicName id="3EAE8997E09AFC6EF9C5AB7D06BD8070" authorityName="Marcus" authorityYear="1947" family="Stylochidae" genus="Stylochus" kingdom="Animalia" order="Polycladida" phylum="Platyhelminthes" rank="species" species="sixteni">
|
||
<emphasis id="12FDFB6AE5E1EE5363FFA33BD3F39F3F" italics="true">Stylochus sixteni</emphasis>
|
||
</taxonomicName>
|
||
. The specimen captured on the coast of Yucatan is most similar to the specimen described by
|
||
<bibRefCitation id="0AF45BD951CD1D2AADD96B5B2DFE5ED6" author="Bock S" firstAuthor="Bock" journalOrPublisher="Deutsche Südpolar-Expedition" pagination="259-304" refId="B8" refString="Bock S (1931) Die Polycladen der Deutschen Südpolar-Expedition 1901–1903. Deutsche Südpolar-Expedition 20: 259–304." title="Die Polycladen der Deutschen Südpolar-Expedition 1901-1903." volume="20" year="1931">Bock (1931)</bibRefCitation>
|
||
. The major difference between the specimens described by
|
||
<bibRefCitation id="113180E2C19D2947F3C1F1DB3E3263E7" author="Bock S" firstAuthor="Bock" journalOrPublisher="Deutsche Südpolar-Expedition" pagination="259-304" refId="B8" refString="Bock S (1931) Die Polycladen der Deutschen Südpolar-Expedition 1901–1903. Deutsche Südpolar-Expedition 20: 259–304." title="Die Polycladen der Deutschen Südpolar-Expedition 1901-1903." volume="20" year="1931">Bock (1931)</bibRefCitation>
|
||
and
|
||
<taxonomicName id="7829755EBFE0B821529528E554B85580" authorityName="Marcus" authorityYear="1947" family="Stylochidae" genus="Stylochus" kingdom="Animalia" order="Polycladida" phylum="Platyhelminthes" rank="species" species="sixteni">
|
||
<emphasis id="DB1C176E39AB525FADC288EBB07855B0" italics="true">Stylochus sixteni</emphasis>
|
||
</taxonomicName>
|
||
from the Gulf of Mexico is the distance of the reproductive system from the posterior end of the animal. The reproductive organs, in Bock’s description, are close to the body end, while in the Yucatan specimens, they are near to the posterior end, but not so close as in Bock’s. However, this may be due to the difference in size, since the specimens from
|
||
<collectingCountry id="8329EB8C97C5A328A384B9785BFF9695" name="Cape Verde">Cape Verde</collectingCountry>
|
||
measured
|
||
<quantity id="73A0B629554DF0D0014A5DD1C0C6C325" metricMagnitude="-2" metricUnit="m" metricValue="1.0" unit="mm" value="10.0">10 mm</quantity>
|
||
, while those from the Yucatan coast measured
|
||
<quantity id="243616BCC66E2840032035E221CD45AE" metricMagnitude="-2" metricUnit="m" metricValue="2.0" unit="mm" value="20.0">20 mm</quantity>
|
||
(Fig.
|
||
<figureCitation id="A8067D76D21FC07D9BB244DCF3036328" captionStart="Figure 24" captionStartId="F24" captionText="Figure 24. Stylochus sixteni A live animal, photographed on a black background, tentacles B anterior end, marginal, cerebral and tentacular eyes, after fixation C sagittal section through the reproductive system (stained with AZAN) D specimen in situ E sagittal reconstruction of male and female copulatory organs." figureDoi="10.3897/zookeys.1221.128260.figure24" httpUri="https://binary.pensoft.net/fig/1197996">24 E</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="9F23CC2070485D753E369386DDC54C49" ID-DOI="10.3897/zookeys.1221.128260.figure24" ID-arpha="B0548A29-C779-5893-85C3-219E344920DE" httpUri="https://binary.pensoft.net/fig/1197996" startId="F24">
|
||
<paragraph id="A5A11D4AB2C50BDFE3F9D9515916221B">
|
||
<label id="E6F1C26202A680F5F7859B7EFCF88326">Figure 24.</label>
|
||
</paragraph>
|
||
<paragraph id="55DB81B100C9911201DD4BA2F326B053">
|
||
<taxonomicName id="686733E59838AF763B6B7661619E02BB" authorityName="Marcus" authorityYear="1947" family="Stylochidae" genus="Stylochus" kingdom="Animalia" order="Polycladida" phylum="Platyhelminthes" rank="species" species="sixteni">
|
||
<emphasis id="A074F0FB599EBB562E353CCA63A327F3" italics="true">Stylochus sixteni</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="ED135B453A1DC2890AE4C48C422ABBCE" bold="true">A</emphasis>
|
||
live animal, photographed on a black background, tentacles
|
||
<emphasis id="D0204FDC93B8BC523C1B4A9BD08EAB9A" bold="true">B</emphasis>
|
||
anterior end, marginal, cerebral and tentacular eyes, after fixation
|
||
<emphasis id="986712846B78047E3A111B4F16A5C12A" bold="true">C</emphasis>
|
||
sagittal section through the reproductive system (stained with AZAN)
|
||
<emphasis id="1463373180C25D3E00CBD52BA07A694E" bold="true">D</emphasis>
|
||
specimen in situ
|
||
<emphasis id="A753699248B7D669EB708BB2173B4D85" bold="true">E</emphasis>
|
||
sagittal reconstruction of male and female copulatory organs.
|
||
</paragraph>
|
||
</caption>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |