396 lines
47 KiB
XML
396 lines
47 KiB
XML
<document id="8E9F42A47BE0F1E6BFA8CC618D553EBC" ID-CLB-Dataset="24073" ID-DOI="10.11646/zootaxa.4732.2.1" ID-GBIF-Dataset="7aff0d3b-eb60-43e7-ace6-caffff8c1d72" ID-ISSN="1175-5326" ID-Zenodo-Dep="3663329" ID-ZooBank="F3FE261C-0865-40A7-AAAA-63791DD836A5" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1581496432828" checkinUser="plazi" docAuthor="Vilvens, Claude & Williams, Suzanne T." docDate="2020" docId="0078D1136318FFCEFF0B8EB1FCF2FA22" docLanguage="en" docName="zootaxa.4732.2.1.pdf" docOrigin="Zootaxa 4732 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Ilanga herberti Vilvens & Williams 2020, n. sp." docType="treatment" docVersion="9" lastPageNumber="215" masterDocId="FC41A96B6314FFC0FF9C8823FF86FFA6" masterDocTitle="New species of Ilanga (Gastropoda: Trochoidea: Solariellidae) from the Indo-West Pacific" masterLastPageNumber="257" masterPageNumber="201" pageNumber="213" updateTime="1698782720654" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:mods id="5BA6D003B604B39B87313C90A6E8652F" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:title id="74F51AAB0F289B02A77248E9F18E783C">New species of Ilanga (Gastropoda: Trochoidea: Solariellidae) from the Indo-West Pacific</mods:title>
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<mods:name id="F3C278EAF4E4796F3E2442A2ECDB1FAF" type="personal">
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<mods:namePart id="EEDDF12AD4DAA6F495917C95047EF612">Vilvens, Claude</mods:namePart>
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<mods:namePart id="799F59B938A3726D49E827BC6850A232">Williams, Suzanne T.</mods:namePart>
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<mods:title id="99AD6E1CE654BEE1AA5D2FF1AC0698E4">Zootaxa</mods:title>
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<mods:part id="985F68E9D9759F58D37B7D76F5DA1FD9">
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<mods:date id="E68200240A1AE45723AE8A66F63C8380">2020</mods:date>
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<mods:number id="5BF76877D305D01AC96EC3191C626674">2020-02-12</mods:number>
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<mods:number id="39B72BD04639D6C25880CE76313FCE19">4732</mods:number>
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<mods:identifier id="D7B1355EDE5E3EBD5DE11EA0D65909F6" type="DOI">10.11646/zootaxa.4732.2.1</mods:identifier>
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<treatment id="0078D1136318FFCEFF0B8EB1FCF2FA22" ID-DOI="http://doi.org/10.5281/zenodo.3664711" ID-GBIF-Taxon="162077102" ID-Zenodo-Dep="3664711" LSID="urn:lsid:plazi:treatment:0078D1136318FFCEFF0B8EB1FCF2FA22" httpUri="http://treatment.plazi.org/id/0078D1136318FFCEFF0B8EB1FCF2FA22" lastPageId="14" lastPageNumber="215" pageId="12" pageNumber="213">
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<subSubSection id="C0CB338E6318FFCCFF0B8EB1FE0AF90B" box="[151,396,1682,1709]" pageId="12" pageNumber="213" type="nomenclature">
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<paragraph id="886E60056318FFCCFF0B8EB1FE0AF90B" blockId="12.[151,489,1682,1745]" box="[151,396,1682,1709]" pageId="12" pageNumber="213">
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<heading id="D326D7696318FFCCFF0B8EB1FE0AF90B" bold="true" box="[151,396,1682,1709]" fontSize="11" level="1" pageId="12" pageNumber="213" reason="1">
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<emphasis id="BAA5BC176318FFCCFF0B8EB1FE0AF90B" bold="true" box="[151,396,1682,1709]" pageId="12" pageNumber="213">
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<taxonomicName id="4FD11B866318FFCCFF0B8EB1FEC0F90B" ID-CoL="7RQLS" authority="Vilvens & Williams, 2020" authorityName="Vilvens & Williams" authorityYear="2020" box="[151,326,1682,1709]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="12" pageNumber="213" phylum="Mollusca" rank="species" species="herberti" status="sp. nov.">
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<emphasis id="BAA5BC176318FFCCFF0B8EB1FEC0F90B" bold="true" box="[151,326,1682,1709]" italics="true" pageId="12" pageNumber="213">Ilanga herberti</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A196016C6318FFCCFED18EB0FE0AF90B" box="[333,396,1683,1709]" pageId="12" pageNumber="213" rank="species">n. sp.</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="C0CB338E6318FFCCFF0B8E94FC82F88D" pageId="12" pageNumber="213" type="description">
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<paragraph id="886E60056318FFCCFF0B8E94FE6FF977" blockId="12.[151,489,1682,1745]" box="[151,489,1719,1745]" pageId="12" pageNumber="213">
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(
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<figureCitation id="10EA7C806318FFCCFF038E94FF63F977" box="[159,229,1719,1745]" captionStart="FIGURE 7" captionStartId="13.[151,250,1300,1325]" captionTargetBox="[151,1436,181,1274]" captionTargetId="figure@13.[151,1436,181,1274]" captionTargetPageId="13" captionText="FIGURE 7. Ilanga herberti n. sp., Mozambique Channel, MAINBAZA, stn CP3143, 264–277 m. A–F. Holotype MNHN IM- 2009-15174, 5.6×8.3 mm. A–C. Shell, apertural, apical and basal views. D. Details of protoconch and first whorl. Scale 100 µm. E. Sculpture on whorls. Scale 200 µm. F. Details of umbilical area. Scale 1 mm. G–I. Paratype 1 MNHN IM-2000-34396, 8.8×13.3 mm. Scale (except for SEM images) 5 mm." figureDoi="http://doi.org/10.5281/zenodo.3663343" httpUri="https://zenodo.org/record/3663343/files/figure.png" pageId="12" pageNumber="213">Figs 7</figureCitation>
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A–I,
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<tableCitation id="C55355BE6318FFCCFE838E94FEF2F977" box="[287,372,1719,1745]" captionStart="TABLE 2" captionStartId="14.[151,239,478,502]" captionTargetPageId="14" captionText="TABLE 2. Ilanga herberti n. sp.: shell dimensions in mm for type specimens." httpUri="http://table.plazi.org/id/DCAE308D631AFFCEFF0B89FDFC5CFE51" pageId="12" pageNumber="213" tableUuid="DCAE308D631AFFCEFF0B89FDFC5CFE51">Table 2</tableCitation>
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, Key 1: 3)
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</paragraph>
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<paragraph id="886E60056318FFCCFF0B8ED7FC87F8AB" blockId="12.[151,772,1780,1835]" box="[151,769,1780,1805]" pageId="12" pageNumber="213">
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<taxonomicName id="4FD11B866318FFCCFF0B8ED7FF5FF8AA" box="[151,217,1780,1804]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="12" pageNumber="213" phylum="Mollusca" rank="genus">
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<emphasis id="BAA5BC176318FFCCFF0B8ED7FF5FF8AA" box="[151,217,1780,1804]" italics="true" pageId="12" pageNumber="213">Ilanga</emphasis>
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</taxonomicName>
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11 (
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<bibRefCitation id="EC401DF46318FFCCFE998ED7FE5EF8AB" author="Williams, S. T. & Smith, L. M. & Herbert, D. G. & Marshall, B. A. & Waren, A. & Kiel, S. & Dyal, P. & Linse, K. & Vilvens, C. & Kano, Y." box="[261,472,1780,1805]" pageId="12" pageNumber="213" pagination="887 - 917" refId="ref39852" refString="Williams, S. T., Smith, L. M., Herbert, D. G., Marshall, B. A., Waren, A., Kiel, S., Dyal, P., Linse, K., Vilvens, C. & Kano, Y. (2013) Cenozoic climate change and diversification on the continental shelf and slope: evolution of gastropod diversity in the family Solariellidae (Trochoidea). Ecology and Evolution, 3 (4), 887 - 917. https: // doi. org / 10.1002 / ece 3.513" type="journal article" year="2013">
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Williams
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<emphasis id="BAA5BC176318FFCCFEF58ED6FE1AF8AA" box="[361,412,1780,1804]" italics="true" pageId="12" pageNumber="213">et al.</emphasis>
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2013
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</bibRefCitation>
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||
; Sumner Rooney
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<emphasis id="BAA5BC176318FFCCFD108ED6FD46F8AA" box="[652,704,1780,1804]" italics="true" pageId="12" pageNumber="213">et al.</emphasis>
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2016)
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</paragraph>
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<paragraph id="886E60056318FFCCFF0B8F31FC82F88D" blockId="12.[151,772,1780,1835]" box="[151,772,1810,1835]" pageId="12" pageNumber="213">
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16S sequence data: GenBank Accession numbers:
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<accessionNumber id="9782FDE66318FFCCFD0B8F31FC82F88D" box="[663,772,1810,1835]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/HF585956" pageId="12" pageNumber="213">HF585956</accessionNumber>
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C0CB338E6318FFCCFF0B8F70FBDEF858" pageId="12" pageNumber="213" type="materials_examined">
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||
<paragraph id="886E60056318FFCCFF0B8F70FEDEF834" blockId="12.[151,1436,1874,2046]" pageId="12" pageNumber="213">
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<emphasis id="BAA5BC176318FFCCFF0B8F70FEC1F8CB" bold="true" box="[151,327,1874,1901]" pageId="12" pageNumber="213">Type material.</emphasis>
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||
<materialsCitation id="38B96A586318FFCCFED38F70FC34F8C8" ID-GBIF-Occurrence="2565010143" box="[335,946,1874,1902]" location="MNHN" pageId="12" pageNumber="213" specimenCount="1" stateProvince="Monaghan" typeStatus="holotype">
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||
<typeStatus id="576ADEA76318FFCCFED38F70FE31F8CB" box="[335,439,1875,1901]" pageId="12" pageNumber="213" type="holotype">Holotype</typeStatus>
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(5.6×
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<quantity id="4F29CDE06318FFCCFE608F71FDD3F8CB" box="[508,597,1874,1901]" metricMagnitude="-3" metricUnit="m" metricValue="8.3" pageId="12" pageNumber="213" unit="mm" value="8.3">8.3 mm</quantity>
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||
)
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||
<collectingRegion id="4A15AEE76318FFCCFDFA8F70FD3AF8CB" box="[614,700,1875,1901]" country="Ireland" name="Monaghan" pageId="12" pageNumber="213">MNHN</collectingRegion>
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(IM-2009-15174, lv)
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</materialsCitation>
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||
.
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<materialsCitation id="38B96A586318FFCCFC238F70FED2F834" ID-GBIF-Occurrence="2565010110" location="MNHN" pageId="12" pageNumber="213" specimenCount="1" stateProvince="Monaghan" typeStatus="paratype">
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||
<typeStatus id="576ADEA76318FFCCFC238F70FBB6F8CB" box="[959,1072,1875,1901]" pageId="12" pageNumber="213" type="paratype">Paratypes</typeStatus>
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: 2
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<collectingRegion id="4A15AEE76318FFCCFBCF8F70FB2FF8CB" box="[1107,1193,1875,1901]" country="Ireland" name="Monaghan" pageId="12" pageNumber="213">MNHN</collectingRegion>
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(IM-2000-34396, lv) (as listed below)
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</materialsCitation>
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||
.
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||
</paragraph>
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<paragraph id="886E60056318FFCCFF5B8FB8FA97F813" blockId="12.[151,1436,1874,2046]" box="[199,1297,1946,1973]" pageId="12" pageNumber="213">
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<materialsCitation id="38B96A586318FFCCFF5B8FB8FA97F813" ID-GBIF-Occurrence="2565010091" box="[199,1297,1946,1973]" country="Mozambique" elevation="271" latitude="-23.533333" location="Channel" longLatPrecision="1255" longitude="35.766666" pageId="12" pageNumber="213" specimenCount="1" typeStatus="holotype">
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||
<emphasis id="BAA5BC176318FFCCFF5B8FB8FEE3F813" bold="true" box="[199,357,1946,1973]" pageId="12" pageNumber="213">
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<typeStatus id="576ADEA76318FFCCFF5B8FB8FE84F813" box="[199,258,1947,1973]" pageId="12" pageNumber="213">Type</typeStatus>
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locality.
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</emphasis>
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<collectingCountry id="F0C620956318FFCCFEF08FB8FD86F813" box="[364,512,1947,1973]" name="Mozambique" pageId="12" pageNumber="213">Mozambique</collectingCountry>
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||
<location id="8D0E36DE6318FFCCFD9B8FB8FDE1F813" LSID="urn:lsid:plazi:treatment:0078D1136318FFCEFF0B8EB1FCF2FA22:8D0E36DE6318FFCCFD9B8FB8FDE1F813" box="[519,615,1947,1973]" country="Mozambique" latitude="-23.533333" longLatPrecision="1255" longitude="35.766666" name="Channel" pageId="12" pageNumber="213">Channel</location>
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, MAINBAZA, stn CP3143,
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<geoCoordinate id="EDE506C26318FFCCFC3B8FB8FB8AF813" box="[935,1036,1947,1973]" degrees="23" direction="south" minutes="32" orientation="latitude" pageId="12" pageNumber="213" precision="925" value="-23.533333">23°32‘ S</geoCoordinate>
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,
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<geoCoordinate id="EDE506C26318FFCCFB848FB9FBF9F813" box="[1048,1151,1946,1973]" degrees="35" direction="east" minutes="46" orientation="longitude" pageId="12" pageNumber="213" precision="925" value="35.766666">35°46‘ E</geoCoordinate>
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,
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<quantity id="4F29CDE06318FFCCFB178FB8FA8BF813" box="[1163,1293,1947,1973]" metricMagnitude="2" metricUnit="m" metricValue="2.705" metricValueMax="2.77" metricValueMin="2.6399999999999997" pageId="12" pageNumber="213" unit="m" value="270.5" valueMax="277.0" valueMin="264.0">
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||
<elevation id="03FC87366318FFCCFB178FB8FA8BF813" box="[1163,1293,1947,1973]" metricMagnitude="2" metricUnit="m" metricValue="2.705" metricValueMax="2.77" metricValueMin="2.6399999999999997" pageId="12" pageNumber="213" unit="m" value="270.5" valueMax="277.0" valueMin="264.0">264–277 m</elevation>
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||
</quantity>
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||
.
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||
</materialsCitation>
|
||
</paragraph>
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||
<paragraph id="886E60056318FFCCFF5B8F9DFBDEF858" blockId="12.[151,1436,1874,2046]" pageId="12" pageNumber="213">
|
||
<emphasis id="BAA5BC176318FFCCFF5B8F9DFE37F87F" bold="true" box="[199,433,1982,2009]" pageId="12" pageNumber="213">Material examined.</emphasis>
|
||
<materialsCitation id="38B96A586318FFCCFE248F9CFBD3F858" ID-GBIF-Occurrence="2565010160" collectionCode="MNHN" country="Mozambique" elevation="271" latitude="-23.533333" location="Mozambique" longLatPrecision="1255" longitude="35.766666" pageId="12" pageNumber="213" specimenCount="2" typeStatus="holotype">
|
||
<collectingCountry id="F0C620956318FFCCFE248F9CFDCAF87F" box="[440,588,1983,2009]" name="Mozambique" pageId="12" pageNumber="213">Mozambique</collectingCountry>
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||
Channel. MAINBAZA: stn CP3143,
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||
<geoCoordinate id="EDE506C26318FFCCFC688F9CFBD5F87F" box="[1012,1107,1983,2009]" degrees="23" direction="south" minutes="32" orientation="latitude" pageId="12" pageNumber="213" precision="925" value="-23.533333">23°32‘S</geoCoordinate>
|
||
,
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||
<geoCoordinate id="EDE506C26318FFCCFBC28F9DFB39F87F" box="[1118,1215,1982,2009]" degrees="35" direction="east" minutes="46" orientation="longitude" pageId="12" pageNumber="213" precision="925" value="35.766666">35°46‘E</geoCoordinate>
|
||
,
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||
<quantity id="4F29CDE06318FFCCFB568F9CFACDF87F" box="[1226,1355,1983,2009]" metricMagnitude="2" metricUnit="m" metricValue="2.705" metricValueMax="2.77" metricValueMin="2.6399999999999997" pageId="12" pageNumber="213" unit="m" value="270.5" valueMax="277.0" valueMin="264.0">
|
||
<elevation id="03FC87366318FFCCFB568F9CFACDF87F" box="[1226,1355,1983,2009]" metricMagnitude="2" metricUnit="m" metricValue="2.705" metricValueMax="2.77" metricValueMin="2.6399999999999997" pageId="12" pageNumber="213" unit="m" value="270.5" valueMax="277.0" valueMin="264.0">264–277 m</elevation>
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||
</quantity>
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||
, 3 lv, 1 dd sub (with
|
||
<typeStatus id="576ADEA76318FFCCFEB68FC0FE0AF85B" box="[298,396,2019,2045]" pageId="12" pageNumber="213" type="holotype">holotype</typeStatus>
|
||
<collectionCode id="EEC0F8C06318FFCCFE0F8FC0FE6FF85B" box="[403,489,2019,2045]" country="France" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" lsid="urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="12" pageNumber="213">MNHN</collectionCode>
|
||
IM-2009-15174,
|
||
<specimenCount id="9ED7AB8C6318FFCCFD2D8FC0FCB7F85B" box="[689,817,2019,2045]" pageId="12" pageNumber="213" type="generic" typeStatus="paratypes">2 paratypes</specimenCount>
|
||
<collectionCode id="EEC0F8C06318FFCCFCA48FC0FC08F85B" box="[824,910,2019,2045]" country="France" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" lsid="urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="12" pageNumber="213">MNHN</collectionCode>
|
||
IM-2000-34396)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="DCAE308D6319FFCDFF0B8D37FD36FA3E" ID-DOI="http://doi.org/10.5281/zenodo.3663343" ID-Zenodo-Dep="3663343" httpUri="https://zenodo.org/record/3663343/files/figure.png" pageId="13" pageNumber="214" startId="13.[151,250,1300,1325]" targetBox="[151,1436,181,1274]" targetPageId="13">
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<paragraph id="886E60056319FFCDFF0B8D37FD36FA3E" blockId="13.[151,1436,1300,1433]" pageId="13" pageNumber="214">
|
||
<emphasis id="BAA5BC176319FFCDFF0B8D37FE95FA8B" bold="true" box="[151,275,1300,1325]" pageId="13" pageNumber="214">FIGURE 7.</emphasis>
|
||
<taxonomicName id="4FD11B866319FFCDFE858D37FE32FA8A" authority="Vilvens & Williams, 2020" authorityName="Vilvens & Williams" authorityYear="2020" box="[281,436,1300,1324]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="13" pageNumber="214" phylum="Mollusca" rank="species" species="herberti" status="sp. nov.">
|
||
<emphasis id="BAA5BC176319FFCDFE858D37FE32FA8A" box="[281,436,1300,1324]" italics="true" pageId="13" pageNumber="214">Ilanga herberti</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="BAA5BC176319FFCDFE268D36FE75FA8B" bold="true" box="[442,499,1301,1325]" pageId="13" pageNumber="214">
|
||
<taxonomicNameLabel id="A196016C6319FFCDFE268D36FE75FA8B" box="[442,499,1301,1325]" pageId="13" pageNumber="214" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
, Mozambique Channel, MAINBAZA, stn CP3143, 264–277 m.
|
||
<emphasis id="BAA5BC176319FFCDFB188D37FB30FA8B" bold="true" box="[1156,1206,1300,1325]" pageId="13" pageNumber="214">A–F.</emphasis>
|
||
Holotype MNHN IM- 2009-15174, 5.6×8.3 mm.
|
||
<emphasis id="BAA5BC176319FFCDFE378D1BFE65FAF7" bold="true" box="[427,483,1336,1361]" pageId="13" pageNumber="214">A–C.</emphasis>
|
||
Shell, apertural, apical and basal views.
|
||
<emphasis id="BAA5BC176319FFCDFC168D1AFC25FAF7" bold="true" box="[906,931,1337,1361]" pageId="13" pageNumber="214">D.</emphasis>
|
||
Details of protoconch and first whorl. Scale 100 µm.
|
||
<emphasis id="BAA5BC176319FFCDFF5A8D7EFF5BFAD3" bold="true" box="[198,221,1373,1397]" pageId="13" pageNumber="214">E.</emphasis>
|
||
Sculpture on whorls. Scale 200 µm.
|
||
<emphasis id="BAA5BC176319FFCDFDC88D7EFDE1FAD3" bold="true" box="[596,615,1373,1397]" pageId="13" pageNumber="214">F.</emphasis>
|
||
Details of umbilical area. Scale 1 mm.
|
||
<emphasis id="BAA5BC176319FFCDFC648D7FFBAFFAD3" bold="true" box="[1016,1065,1372,1397]" pageId="13" pageNumber="214">G–I.</emphasis>
|
||
Paratype 1 MNHN IM-2000-34396, 8.8×13.3 mm. Scale (except for SEM images) 5 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="C0CB338E6319FFCDFF5B8DC9FD77F9A3" box="[199,753,1514,1541]" pageId="13" pageNumber="214" type="distribution">
|
||
<paragraph id="886E60056319FFCDFF5B8DC9FD77F9A3" blockId="13.[151,1437,1514,2045]" box="[199,753,1514,1541]" pageId="13" pageNumber="214">
|
||
<emphasis id="BAA5BC176319FFCDFF5B8DC9FEE7F9A3" bold="true" box="[199,353,1514,1541]" pageId="13" pageNumber="214">Distribution.</emphasis>
|
||
Only known from the
|
||
<typeStatus id="576ADEA76319FFCDFDFC8DC8FD16F9A3" box="[608,656,1515,1541]" pageId="13" pageNumber="214">type</typeStatus>
|
||
locality.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C0CB338E6319FFCDFF5B8E2DFBD9F9D7" pageId="13" pageNumber="214" type="diagnosis">
|
||
<paragraph id="886E60056319FFCDFF5B8E2DFBD9F9D7" blockId="13.[151,1437,1514,2045]" pageId="13" pageNumber="214">
|
||
<emphasis id="BAA5BC176319FFCDFF5B8E2DFEC4F98F" bold="true" box="[199,322,1550,1577]" pageId="13" pageNumber="214">Diagnosis.</emphasis>
|
||
A medium sized
|
||
<taxonomicName id="4FD11B866319FFCDFD9C8E2CFDCFF98F" box="[512,585,1551,1577]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="13" pageNumber="214" phylum="Mollusca" rank="genus">
|
||
<emphasis id="BAA5BC176319FFCDFD9C8E2CFDCFF98F" box="[512,585,1551,1577]" italics="true" pageId="13" pageNumber="214">Ilanga</emphasis>
|
||
</taxonomicName>
|
||
species with a moderately elevated, conical to slightly coeloconoidal spire, a rounded periphery with very convex whorls, 5 strong spiral cords on early teleoconch whorls, no subsutural pleats, umbilicus with rounded rim, without axial pleats around it and 6–8 spiral cords inside.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C0CB338E6319FFCEFF5B8E59FF60FE09" lastPageId="14" lastPageNumber="215" pageId="13" pageNumber="214" type="description">
|
||
<paragraph id="886E60056319FFCEFF5B8E59FE44FEE5" blockId="13.[151,1437,1514,2045]" lastBlockId="14.[151,1437,153,431]" lastPageId="14" lastPageNumber="215" pageId="13" pageNumber="214">
|
||
<emphasis id="BAA5BC176319FFCDFF5B8E59FEDFF933" bold="true" box="[199,345,1658,1685]" pageId="13" pageNumber="214">Description.</emphasis>
|
||
Shell: Rather tall for genus (H up to
|
||
<quantity id="4F29CDE06319FFCDFC8D8E58FCEDF933" box="[785,875,1659,1685]" metricMagnitude="-3" metricUnit="m" metricValue="8.8" pageId="13" pageNumber="214" unit="mm" value="8.8">8.8 mm</quantity>
|
||
, W to
|
||
<quantity id="4F29CDE06319FFCDFC208E59FBA1F933" box="[956,1063,1658,1685]" metricMagnitude="-2" metricUnit="m" metricValue="1.53" pageId="13" pageNumber="214" unit="mm" value="15.3">15.3 mm</quantity>
|
||
), wider than high, shape conical to slightly coeloconoidal, thin-shelled, glossy; spire moderately depressed, height 0.66×to 0.67×width, 1.97×to 2.1×aperture height; rounded periphery; umbilicus very broad, deep. Protoconch ca. 250 μm wide, 1.25 whorls, rounded, with about 5 very weak spiral and without visible terminal lip. Teleoconch up to 5.4 convex whorls with a very weak subsutural ramp on first whorls but vanishing on last whorls; early whorls with 5 equally spaced spiral cords of similar size; last whorls almost smooth, with only very weak, thin spiral threads on abapical half. Suture impressed, not canaliculated. First whorl convex, sculptured with 5 strong spiral cords appearing immediately after protoconch; cords nearly smooth to weakly subgranular, more or less equally spaced; P1 at rim of a weak subsutural ramp; axial, weakly prosocline, very fine threads between cords. At end of second whorl, all cords more or less smooth, weakening near end of whorl; axial threads weakening and vanishing at end of whorl. On third whorl, all cords disappeared, whole surface becoming smooth, except some very weak, very thin, poorly visible spiral threads. On last whorls, spiral threads more numerous but still very hard to recognize, more distinct on abapical part and especially on periphery. Aperture subcircular; peristome incomplete; outer and inner lip thin; no thickening towards umbilical rim. Base moderately convex, smooth. Umbilicus very broad (diameter about 25% of shell width), central, with perspective to apex, with rounded rim, without axial pleats around it; convex wall with very thin axial threads and 6–10 thin spiral cords.
|
||
</paragraph>
|
||
<paragraph id="886E6005631AFFCEFF5B896EFAE8FEC1" blockId="14.[151,1437,153,431]" box="[199,1390,333,359]" pageId="14" pageNumber="215">Colour: Teleoconch greyish white with prosocline brown flames; base whitish; protoconch whitish brown.</paragraph>
|
||
<paragraph id="886E6005631AFFCEFF5B8952FF60FE09" blockId="14.[151,1437,153,431]" pageId="14" pageNumber="215">External anatomy: Small tubercles on tentacles. Operculum corneous, multispiral with central nucleus, light brown.</paragraph>
|
||
</subSubSection>
|
||
<caption id="DCAE308D631AFFCEFF0B89FDFC5CFE51" ID-Table-UUID="DCAE308D631AFFCEFF0B89FDFC5CFE51" box="[151,986,478,503]" httpUri="http://table.plazi.org/id/DCAE308D631AFFCEFF0B89FDFC5CFE51" pageId="14" pageNumber="215" targetBox="[161,1381,514,653]" targetIsTable="true" targetPageId="14">
|
||
<paragraph id="886E6005631AFFCEFF0B89FDFC5CFE51" blockId="14.[151,986,478,503]" box="[151,986,478,503]" pageId="14" pageNumber="215">
|
||
<emphasis id="BAA5BC17631AFFCEFF0B89FDFE8CFE50" bold="true" box="[151,266,478,502]" pageId="14" pageNumber="215">TABLE 2.</emphasis>
|
||
<taxonomicName id="4FD11B86631AFFCEFE8D89FCFE35FE51" authority="Vilvens & Williams, 2020" authorityName="Vilvens & Williams" authorityYear="2020" box="[273,435,479,503]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="herberti" status="sp. nov.">
|
||
<emphasis id="BAA5BC17631AFFCEFE8D89FCFE35FE51" box="[273,435,479,503]" italics="true" pageId="14" pageNumber="215">Ilanga herberti</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="BAA5BC17631AFFCEFE2689FCFE70FE51" bold="true" box="[442,502,479,503]" pageId="14" pageNumber="215">
|
||
<taxonomicNameLabel id="A196016C631AFFCEFE2689FCFE70FE51" box="[442,502,479,503]" pageId="14" pageNumber="215" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
: shell dimensions in mm for type specimens.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="886E6005631AFFCEFDCC8A20FAD6FD2A" pageId="14" pageNumber="215">
|
||
<table id="FAD192A5631A003FFF3D8A21FAE3FD2B" box="[161,1381,514,653]" colsContinueIn="17.[161,1358,191,332]" gridcols="7" gridrows="4" pageId="14" pageNumber="215">
|
||
<tr id="36E16247631A003FFF3D8A21FAE3FDBD" box="[161,1381,514,539]" gridrow="0" pageId="14" pageNumber="215" rowspan-0="1">
|
||
<th id="75300B3B631A003FFDCC8A21FDFCFDBD" box="[592,634,514,539]" gridcol="1" gridrow="0" pageId="14" pageNumber="215">
|
||
<emphasis id="BAA5BC17631AFFCEFDCC8A20FDFCFDBD" bold="true" box="[592,634,515,539]" pageId="14" pageNumber="215">TW</emphasis>
|
||
</th>
|
||
<th id="75300B3B631A003FFD7D8A21FC87FDBD" box="[737,769,514,539]" gridcol="2" gridrow="0" pageId="14" pageNumber="215">
|
||
<emphasis id="BAA5BC17631AFFCEFD7D8A20FD73FDBD" bold="true" box="[737,757,515,539]" pageId="14" pageNumber="215">H</emphasis>
|
||
</th>
|
||
<th id="75300B3B631A003FFCEE8A21FC18FDBD" box="[882,926,514,539]" gridcol="3" gridrow="0" pageId="14" pageNumber="215">
|
||
<emphasis id="BAA5BC17631AFFCEFCEE8A20FC0DFDBD" bold="true" box="[882,907,515,539]" pageId="14" pageNumber="215">W</emphasis>
|
||
</th>
|
||
<th id="75300B3B631A003FFC628A21FBA2FDBD" box="[1022,1060,514,539]" gridcol="4" gridrow="0" pageId="14" pageNumber="215">
|
||
<emphasis id="BAA5BC17631AFFCEFC628A21FBA2FDBD" bold="true" box="[1022,1060,514,539]" pageId="14" pageNumber="215">HA</emphasis>
|
||
</th>
|
||
<th id="75300B3B631A003FFB088A21FB4EFDBD" box="[1172,1224,514,539]" gridcol="5" gridrow="0" pageId="14" pageNumber="215">
|
||
<emphasis id="BAA5BC17631AFFCEFB088A21FB4EFDBD" bold="true" box="[1172,1224,514,539]" pageId="14" pageNumber="215">H/W</emphasis>
|
||
</th>
|
||
<th id="75300B3B631A003FFAB98A21FAE3FDBD" box="[1317,1381,514,539]" gridcol="6" gridrow="0" pageId="14" pageNumber="215">
|
||
<emphasis id="BAA5BC17631AFFCEFAB98A21FAE3FDBD" bold="true" box="[1317,1381,514,539]" pageId="14" pageNumber="215">H/HA</emphasis>
|
||
</th>
|
||
</tr>
|
||
<tr id="36E16247631A003FFF3D8A0BFAE3FDE7" box="[161,1381,552,577]" gridrow="1" pageId="14" pageNumber="215">
|
||
<th id="75300B3B631A003FFF3D8A0BFD8EFDE7" box="[161,520,552,577]" gridcol="0" gridrow="1" pageId="14" pageNumber="215">Holotype MNHN IM-2009-15174</th>
|
||
<td id="75300B3B631A003FFDCC8A0BFDFCFDE7" box="[592,634,552,577]" gridcol="1" gridrow="1" pageId="14" pageNumber="215">5.2</td>
|
||
<td id="75300B3B631A003FFD7D8A0BFC87FDE7" box="[737,769,552,577]" gridcol="2" gridrow="1" pageId="14" pageNumber="215">5.6</td>
|
||
<td id="75300B3B631A003FFCEE8A0BFC18FDE7" box="[882,926,552,577]" gridcol="3" gridrow="1" pageId="14" pageNumber="215">8.3</td>
|
||
<td id="75300B3B631A003FFC628A0BFBA2FDE7" box="[1022,1060,552,577]" gridcol="4" gridrow="1" pageId="14" pageNumber="215">3</td>
|
||
<td id="75300B3B631A003FFB088A0BFB4EFDE7" box="[1172,1224,552,577]" gridcol="5" gridrow="1" pageId="14" pageNumber="215">0.67</td>
|
||
<td id="75300B3B631A003FFAB98A0BFAE3FDE7" box="[1317,1381,552,577]" gridcol="6" gridrow="1" pageId="14" pageNumber="215">1.87</td>
|
||
</tr>
|
||
<tr id="36E16247631A003FFF3D8A6DFAE3FDC1" box="[161,1381,590,615]" gridrow="2" pageId="14" pageNumber="215">
|
||
<th id="75300B3B631A003FFF3D8A6DFD8EFDC1" box="[161,520,590,615]" gridcol="0" gridrow="2" pageId="14" pageNumber="215">Paratype 1 MNHN IM-2000-34396</th>
|
||
<td id="75300B3B631A003FFDCC8A6DFDFCFDC1" box="[592,634,590,615]" gridcol="1" gridrow="2" pageId="14" pageNumber="215">5.4</td>
|
||
<td id="75300B3B631A003FFD7D8A6DFC87FDC1" box="[737,769,590,615]" gridcol="2" gridrow="2" pageId="14" pageNumber="215">8.8</td>
|
||
<td id="75300B3B631A003FFCEE8A6DFC18FDC1" box="[882,926,590,615]" gridcol="3" gridrow="2" pageId="14" pageNumber="215">13.3</td>
|
||
<td id="75300B3B631A003FFC628A6DFBA2FDC1" box="[1022,1060,590,615]" gridcol="4" gridrow="2" pageId="14" pageNumber="215">4.6</td>
|
||
<td id="75300B3B631A003FFB088A6DFB4EFDC1" box="[1172,1224,590,615]" gridcol="5" gridrow="2" pageId="14" pageNumber="215">0.66</td>
|
||
<td id="75300B3B631A003FFAB98A6DFAE3FDC1" box="[1317,1381,590,615]" gridcol="6" gridrow="2" pageId="14" pageNumber="215">1.91</td>
|
||
</tr>
|
||
<tr id="36E16247631A003FFF3D8A57FAE3FD2B" box="[161,1381,628,653]" gridrow="3" pageId="14" pageNumber="215">
|
||
<th id="75300B3B631A003FFF3D8A57FD8EFD2B" box="[161,520,628,653]" gridcol="0" gridrow="3" pageId="14" pageNumber="215">Paratype 2 MNHN IM-2000-34396</th>
|
||
<td id="75300B3B631A003FFDCC8A57FDFCFD2B" box="[592,634,628,653]" gridcol="1" gridrow="3" pageId="14" pageNumber="215">4.9</td>
|
||
<td id="75300B3B631A003FFD7D8A57FC87FD2B" box="[737,769,628,653]" gridcol="2" gridrow="3" pageId="14" pageNumber="215">7.6</td>
|
||
<td id="75300B3B631A003FFCEE8A57FC18FD2B" box="[882,926,628,653]" gridcol="3" gridrow="3" pageId="14" pageNumber="215">11.6</td>
|
||
<td id="75300B3B631A003FFC628A57FBA2FD2B" box="[1022,1060,628,653]" gridcol="4" gridrow="3" pageId="14" pageNumber="215">3.6</td>
|
||
<td id="75300B3B631A003FFB088A57FB4EFD2B" box="[1172,1224,628,653]" gridcol="5" gridrow="3" pageId="14" pageNumber="215">0.66</td>
|
||
<td id="75300B3B631A003FFAB98A57FAE3FD2B" box="[1317,1381,628,653]" gridcol="6" gridrow="3" pageId="14" pageNumber="215">2.11</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
<subSubSection id="C0CB338E631AFFCEFF5B8A9DFD1EFABE" pageId="14" pageNumber="215" type="discussion">
|
||
<paragraph id="886E6005631AFFCEFF5B8A9DFE79FCCE" blockId="14.[151,1437,701,1412]" pageId="14" pageNumber="215">
|
||
<emphasis id="BAA5BC17631AFFCEFF5B8A9DFEBDFD7E" bold="true" box="[199,315,702,728]" pageId="14" pageNumber="215">Remarks.</emphasis>
|
||
<taxonomicName id="4FD11B86631AFFCEFEDF8A9EFE6BFD71" authority="Vilvens & Williams, 2020" authorityName="Vilvens & Williams" authorityYear="2020" box="[323,493,701,727]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="herberti" status="sp. nov.">
|
||
<emphasis id="BAA5BC17631AFFCEFEDF8A9EFE6BFD71" box="[323,493,701,727]" italics="true" pageId="14" pageNumber="215">Ilanga herberti</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="BAA5BC17631AFFCEFE698A9DFDB2FD7E" bold="true" box="[501,564,702,728]" pageId="14" pageNumber="215">
|
||
<taxonomicNameLabel id="A196016C631AFFCEFE698A9DFDB2FD7E" box="[501,564,702,728]" pageId="14" pageNumber="215" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
weakly resembles
|
||
<taxonomicName id="4FD11B86631AFFCEFC978A9DFBD3FD7E" authority="(Martens, 1881)" baseAuthorityName="Martens" baseAuthorityYear="1881" box="[779,1109,701,728]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="laevissima">
|
||
<emphasis id="BAA5BC17631AFFCEFC978A9DFC1FFD71" box="[779,921,701,727]" italics="true" pageId="14" pageNumber="215">I. laevissima</emphasis>
|
||
(
|
||
<bibRefCitation id="EC401DF4631AFFCEFC358A9DFBCBFD7E" author="Martens, E. von" box="[937,1101,702,728]" pageId="14" pageNumber="215" pagination="63 - 67" refId="ref39202" refString="Martens, E. von. (1881) Ueber mehrere neue Conchylien, theils aus Central-Asien, theils von S. M. Schiff Gazelle. Sitzungs- Berichte der Gesellschaft naturforschender Freunde zu Berlin, 19 April 1881, 63 - 67." type="book chapter" year="1881">Martens, 1881</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="10EA7C80631AFFCEFBF98A9EFB2AFD7E" box="[1125,1196,701,728]" captionStart="FIGURE 4" captionStartId="8.[151,250,1837,1862]" captionTargetBox="[151,1432,379,1812]" captionTargetId="figure@8.[151,1436,379,1812]" captionTargetPageId="8" captionText="FIGURE 4. A–F. Ilanga laevissima (Martens, 1881), South Africa, Cape Province, NMDP (Africana). NMSA V3139, Stn A 18178 D, 115 m. A–F. 8.5×12.3 mm. A–C. Shell, apertural, apical and basal views. D. Details of protoconch and first whorl. Scale 100 μm. E. Sculpture on whorls. Scale 1 mm. F. Details of umbilical area. Scale 1 mm. G–I. Holotype Trochus laevissimus ZMB/Moll 29315, S. Africa Gazelle 50 fms. J–L. Ilanga 18. South Africa, Cape Province, NMDP (Africana). NMSA V3139, Stn A 18178 D, 115 m. Although morphologically similar to I. laevisissima, this species is genetically distinct. 4.9×7.0 mm. Scale (except SEM images) 5 mm." figureDoi="http://doi.org/10.5281/zenodo.3663337" httpUri="https://zenodo.org/record/3663337/files/figure.png" pageId="14" pageNumber="215">Figs 4</figureCitation>
|
||
A–L) from
|
||
<collectingCountry id="F0C62095631AFFCEFAB28A9EFF42FD5D" name="South Africa" pageId="14" pageNumber="215">South Africa</collectingCountry>
|
||
, but the two are genetically distinct (based on 16S sequence data from
|
||
<bibRefCitation id="EC401DF4631AFFCEFC4E8AC2FB3EFD5A" author="Williams, S. T. & Smith, L. M. & Herbert, D. G. & Marshall, B. A. & Waren, A. & Kiel, S. & Dyal, P. & Linse, K. & Vilvens, C. & Kano, Y." box="[978,1208,737,764]" pageId="14" pageNumber="215" pagination="887 - 917" refId="ref39852" refString="Williams, S. T., Smith, L. M., Herbert, D. G., Marshall, B. A., Waren, A., Kiel, S., Dyal, P., Linse, K., Vilvens, C. & Kano, Y. (2013) Cenozoic climate change and diversification on the continental shelf and slope: evolution of gastropod diversity in the family Solariellidae (Trochoidea). Ecology and Evolution, 3 (4), 887 - 917. https: // doi. org / 10.1002 / ece 3.513" type="journal article" year="2013">
|
||
Williams
|
||
<emphasis id="BAA5BC17631AFFCEFBA28AC1FBE8FD5D" box="[1086,1134,737,763]" italics="true" pageId="14" pageNumber="215">et al</emphasis>
|
||
. 2013
|
||
</bibRefCitation>
|
||
). Morphologically
|
||
<taxonomicName id="4FD11B86631AFFCEFA108AC1FE8BFCB9" baseAuthorityName="Martens" baseAuthorityYear="1881" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="laevissima">
|
||
<emphasis id="BAA5BC17631AFFCEFA108AC1FE8BFCB9" italics="true" pageId="14" pageNumber="215">I. laevissima</emphasis>
|
||
</taxonomicName>
|
||
is larger (H up to
|
||
<quantity id="4F29CDE0631AFFCEFE4B8B26FDA1FC86" box="[471,551,773,800]" metricMagnitude="-2" metricUnit="m" metricValue="1.5" pageId="14" pageNumber="215" unit="mm" value="15.0">15 mm</quantity>
|
||
, W to
|
||
<quantity id="4F29CDE0631AFFCEFDF28B25FD46FC86" box="[622,704,774,800]" metricMagnitude="-2" metricUnit="m" metricValue="2.2" pageId="14" pageNumber="215" unit="mm" value="22.0">22 mm</quantity>
|
||
), has less convex whorls, only very weak spiral cords on the early teleoconch whorls (vs well-defined, equally-sized cords in
|
||
<taxonomicName id="4FD11B86631AFFCEFCAA8B09FC2FFCE5" authorityName="Vilvens & Williams" authorityYear="2020" box="[822,937,809,835]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="herberti">
|
||
<emphasis id="BAA5BC17631AFFCEFCAA8B09FC2FFCE5" box="[822,937,809,835]" italics="true" pageId="14" pageNumber="215">I. herberti</emphasis>
|
||
</taxonomicName>
|
||
) and thin axial threads inside the umbilicus (no spiral threads in
|
||
<taxonomicName id="4FD11B86631AFFCEFEE18B6DFE69FCC1" authorityName="Vilvens & Williams" authorityYear="2020" box="[381,495,845,871]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="herberti">
|
||
<emphasis id="BAA5BC17631AFFCEFEE18B6DFE69FCC1" box="[381,495,845,871]" italics="true" pageId="14" pageNumber="215">I. herberti</emphasis>
|
||
</taxonomicName>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="886E6005631AFFCEFF5B8B52FD1DFC5E" blockId="14.[151,1437,701,1412]" pageId="14" pageNumber="215">
|
||
The new species may be compared to
|
||
<taxonomicName id="4FD11B86631AFFCEFDF78B51FCEEFC2A" authority="Herbert, 1987" authorityName="Herbert" authorityYear="1987" box="[619,872,881,908]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="discus">
|
||
<emphasis id="BAA5BC17631AFFCEFDF78B51FD41FC2D" box="[619,711,881,907]" italics="true" pageId="14" pageNumber="215">I. discus</emphasis>
|
||
<bibRefCitation id="EC401DF4631AFFCEFD518B52FCEEFC2A" author="Herbert, D. G." box="[717,872,881,908]" pageId="14" pageNumber="215" pagination="283 - 382" refId="ref38823" refString="Herbert, D. G. (1987) Revision of the Solariellinae in Southern Africa. Annals of the Natal Museum, 28 (2), 283 - 382." type="journal article" year="1987">Herbert, 1987</bibRefCitation>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="10EA7C80631AFFCEFCEA8B52FC3FFC2A" box="[886,953,881,908]" captionStart="FIGURE 5" captionStartId="10.[151,250,1670,1695]" captionTargetBox="[151,1436,179,1643]" captionTargetId="figure@10.[151,1436,179,1643]" captionTargetPageId="10" captionText="FIGURE 5. Ilanga discus Herbert, 1987, North-Western Madagascar. A–I. Madagascar, MIRIKY, stn CP3188, 298–301 m. A–F. MNHN IM-2009-8760, 5.2×8.5 mm. A–C. Shell, apertural, apical and basal views. D. Details of protoconch and first whorl. Scale 100 µm. E. Sculpture on whorls. Scale 1 mm. F. Details of umbilical area. Scale 1 mm. G–I. MNHN IM-2009- 8777, 6.8×11.6 mm. J–L. Vauban 1971–1975, stn CH43, 250–265 m, 6.1×13.1 mm. Scale (except for SEM images) 5 mm" figureDoi="http://doi.org/10.5281/zenodo.3663339" httpUri="https://zenodo.org/record/3663339/files/figure.png" pageId="14" pageNumber="215">Figs 5</figureCitation>
|
||
A–L) from eastern
|
||
<collectingCountry id="F0C62095631AFFCEFB0C8B52FA98FC2D" box="[1168,1310,881,907]" name="South Africa" pageId="14" pageNumber="215">South Africa</collectingCountry>
|
||
and North- Western
|
||
<collectingCountry id="F0C62095631AFFCEFF648BB6FE07FC09" box="[248,385,917,943]" name="Madagascar" pageId="14" pageNumber="215">Madagascar</collectingCountry>
|
||
, but
|
||
<taxonomicName id="4FD11B86631AFFCEFE288BB5FD97FC09" authorityName="Herbert" authorityYear="1987" box="[436,529,917,943]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="discus">
|
||
<emphasis id="BAA5BC17631AFFCEFE288BB5FD97FC09" box="[436,529,917,943]" italics="true" pageId="14" pageNumber="215">I. discus</emphasis>
|
||
</taxonomicName>
|
||
is slightly smaller and more depressed (height 0.47–0.61×width, instead of height 0.66–0.67×width in
|
||
<taxonomicName id="4FD11B86631AFFCEFE1C8B99FE72FC75" authorityName="Vilvens & Williams" authorityYear="2020" box="[384,500,953,979]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="herberti">
|
||
<emphasis id="BAA5BC17631AFFCEFE1C8B99FE72FC75" box="[384,500,953,979]" italics="true" pageId="14" pageNumber="215">I. herberti</emphasis>
|
||
</taxonomicName>
|
||
, the difference being statistically significant (t = -5.4512, df = 5.7104, p-value = 0.001859—t-test performed with R software).
|
||
</paragraph>
|
||
<paragraph id="886E6005631AFFCEFF5B8C22FB40FB99" blockId="14.[151,1437,701,1412]" pageId="14" pageNumber="215">
|
||
<taxonomicName id="4FD11B86631AFFCEFF5B8C22FED9FBBD" authorityName="Herbert" authorityYear="1987" box="[199,351,1025,1051]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="discus">
|
||
<emphasis id="BAA5BC17631AFFCEFF5B8C22FED9FBBD" box="[199,351,1025,1051]" italics="true" pageId="14" pageNumber="215">Ilanga discus</emphasis>
|
||
</taxonomicName>
|
||
has flattened whorls, spiral cords are developed up to the third teleoconch whorl. Moreover,
|
||
<taxonomicName id="4FD11B86631AFFCEFA108C21FF5BFB99" authorityName="Herbert" authorityYear="1987" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="discus">
|
||
<emphasis id="BAA5BC17631AFFCEFA108C21FF5BFB99" italics="true" pageId="14" pageNumber="215">I. discus</emphasis>
|
||
</taxonomicName>
|
||
has an umbilicus bordered by an angular rim and lacks spiral cords within the umbilicus.
|
||
</paragraph>
|
||
<paragraph id="886E6005631AFFCEFF5B8C6AFB4CFB21" blockId="14.[151,1437,701,1412]" pageId="14" pageNumber="215">
|
||
The new species is rather similar to
|
||
<taxonomicName id="4FD11B86631AFFCEFDC18C69FCF7FBC2" authority="Herbert, 1987" authorityName="Herbert" authorityYear="1987" box="[605,881,1097,1124]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="lirellata">
|
||
<emphasis id="BAA5BC17631AFFCEFDC18C69FD48FBC5" box="[605,718,1097,1123]" italics="true" pageId="14" pageNumber="215">I. lirellata</emphasis>
|
||
<bibRefCitation id="EC401DF4631AFFCEFD498C6AFCF7FBC2" author="Herbert, D. G." box="[725,881,1097,1124]" pageId="14" pageNumber="215" pagination="283 - 382" refId="ref38823" refString="Herbert, D. G. (1987) Revision of the Solariellinae in Southern Africa. Annals of the Natal Museum, 28 (2), 283 - 382." type="journal article" year="1987">Herbert, 1987</bibRefCitation>
|
||
</taxonomicName>
|
||
from eastern
|
||
<collectingCountry id="F0C62095631AFFCEFB918C6AFB18FBC5" box="[1037,1182,1097,1123]" name="South Africa" pageId="14" pageNumber="215">South Africa</collectingCountry>
|
||
, but this much smaller species has a more elevated spire, a wider protoconch and axial pleats around the umbilical rim.
|
||
</paragraph>
|
||
<paragraph id="886E6005631AFFCEFF5B8CB2FD1EFABE" blockId="14.[151,1437,701,1412]" pageId="14" pageNumber="215">
|
||
<taxonomicName id="4FD11B86631AFFCEFF5B8CB2FEF5FB0D" authority="Vilvens & Williams, 2020" authorityName="Vilvens & Williams" authorityYear="2020" box="[199,371,1169,1195]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="herberti" status="sp. nov.">
|
||
<emphasis id="BAA5BC17631AFFCEFF5B8CB2FEF5FB0D" box="[199,371,1169,1195]" italics="true" pageId="14" pageNumber="215">Ilanga herberti</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="BAA5BC17631AFFCEFEE78CB1FE3AFB0A" bold="true" box="[379,444,1170,1196]" pageId="14" pageNumber="215">
|
||
<taxonomicNameLabel id="A196016C631AFFCEFEE78CB1FE3AFB0A" box="[379,444,1170,1196]" pageId="14" pageNumber="215" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
closely resembles
|
||
<taxonomicName id="4FD11B86631AFFCEFD088CB1FC65FB0A" authority="Herbert, 1987" authorityName="Herbert" authorityYear="1987" box="[660,995,1169,1196]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="maculicincta">
|
||
<emphasis id="BAA5BC17631AFFCEFD088CB1FCB8FB0D" box="[660,830,1169,1195]" italics="true" pageId="14" pageNumber="215">I. maculicincta</emphasis>
|
||
<bibRefCitation id="EC401DF4631AFFCEFCDA8CB2FC65FB0A" author="Herbert, D. G." box="[838,995,1169,1196]" pageId="14" pageNumber="215" pagination="283 - 382" refId="ref38823" refString="Herbert, D. G. (1987) Revision of the Solariellinae in Southern Africa. Annals of the Natal Museum, 28 (2), 283 - 382." type="journal article" year="1987">Herbert, 1987</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4FD11B86631AFFCEFB818CB1FA99FB0A" authority="Herbert, 1987" authorityName="Herbert" authorityYear="1987" box="[1053,1311,1169,1196]" class="Gastropoda" family="Solariellidae" genus="Ilanga" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" order="Trochida" pageId="14" pageNumber="215" phylum="Mollusca" rank="species" species="polita">
|
||
<emphasis id="BAA5BC17631AFFCEFB818CB1FBF0FB0D" box="[1053,1142,1169,1195]" italics="true" pageId="14" pageNumber="215">I. polita</emphasis>
|
||
<bibRefCitation id="EC401DF4631AFFCEFBE38CB2FA99FB0A" author="Herbert, D. G." box="[1151,1311,1169,1196]" pageId="14" pageNumber="215" pagination="283 - 382" refId="ref38823" refString="Herbert, D. G. (1987) Revision of the Solariellinae in Southern Africa. Annals of the Natal Museum, 28 (2), 283 - 382." type="journal article" year="1987">Herbert, 1987</bibRefCitation>
|
||
</taxonomicName>
|
||
, both from eastern
|
||
<collectingCountry id="F0C62095631AFFCEFF728C96FE06FB69" box="[238,384,1205,1231]" name="South Africa" pageId="14" pageNumber="215">South Africa</collectingCountry>
|
||
, but these much smaller (H up to
|
||
<quantity id="4F29CDE0631AFFCEFD638C96FCDEFB76" box="[767,856,1205,1232]" metricMagnitude="-3" metricUnit="m" metricValue="6.8" pageId="14" pageNumber="215" unit="mm" value="6.8">6.8 mm</quantity>
|
||
, W up to
|
||
<quantity id="4F29CDE0631AFFCEFC5B8C96FB9BFB76" box="[967,1053,1205,1232]" metricMagnitude="-3" metricUnit="m" metricValue="8.6" pageId="14" pageNumber="215" unit="mm" value="8.6">8.6 mm</quantity>
|
||
and H up to
|
||
<quantity id="4F29CDE0631AFFCEFB2E8C95FA8DFB76" box="[1202,1291,1206,1232]" metricMagnitude="-3" metricUnit="m" metricValue="3.8" pageId="14" pageNumber="215" unit="mm" value="3.8">3.8 mm</quantity>
|
||
, W up to
|
||
<quantity id="4F29CDE0631AFFCEFAE58C95FF45FB52" metricMagnitude="-3" metricUnit="m" metricValue="4.9" pageId="14" pageNumber="215" unit="mm" value="4.9">4.9 mm</quantity>
|
||
respectively) species have a more elevated spire, a much wider protoconch (both
|
||
<quantity id="4F29CDE0631AFFCEFBCA8CFAFB60FB52" box="[1110,1254,1241,1268]" metricMagnitude="-1" metricUnit="m" metricValue="4.8" metricValueMax="5.0" metricValueMin="4.6" pageId="14" pageNumber="215" unit="mm" value="480.0" valueMax="500.0" valueMin="460.0">460–500 µm</quantity>
|
||
) and a narrower umbilicus (about 15% and 18% respectively).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C0CB338E631AFFCEFF5B8D01FCF2FA22" pageId="14" pageNumber="215" type="etymology">
|
||
<paragraph id="886E6005631AFFCEFF5B8D01FCF2FA22" blockId="14.[151,1437,701,1412]" pageId="14" pageNumber="215">
|
||
<emphasis id="BAA5BC17631AFFCEFF5B8D01FEC8FA9A" bold="true" box="[199,334,1314,1340]" pageId="14" pageNumber="215">Etymology.</emphasis>
|
||
Named after David “Dai” G. Herbert (
|
||
<collectingRegion id="4A15AEE7631AFFCEFC9F8D02FC33FA9D" box="[771,949,1313,1339]" country="South Africa" name="KwaZulu-Natal" pageId="14" pageNumber="215">KwaZulu-Natal</collectingRegion>
|
||
Museum, former NMSA) in recognition of the numerous valuable malacological works he has produced in systematics, especially about the molluscan fauna of
|
||
<collectingCountry id="F0C62095631AFFCEFF2A8D4AFEC2FA25" box="[182,324,1385,1411]" name="South Africa" pageId="14" pageNumber="215">South Africa</collectingCountry>
|
||
and adjacent area of south-western Indian Ocean.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |