278 lines
36 KiB
XML
278 lines
36 KiB
XML
<document id="989EBEE61B2D66F9D0333671082960B7" ID-CLB-Dataset="43082" ID-DOI="10.11646/zootaxa.3709.5.1" ID-GBIF-Dataset="709296cc-ba34-450c-a90b-eefe0c54e5cf" ID-ISSN="1175-5326" ID-Zenodo-Dep="222440" ID-ZooBank="43F153E2-B0C0-4F05-A126-CB061877AFB6" IM.bibliography_approvedBy="admin" IM.illustrations_approvedBy="admin" IM.materialsCitations_approvedBy="admin" IM.metadata_approvedBy="admin" IM.tables_approvedBy="admin" IM.taxonomicNames_approvedBy="admin" IM.treatments_approvedBy="admin" checkinTime="1460674411698" checkinUser="plazi" docAuthor="Angel, Martin V." docDate="2013" docId="03F5905BFFD7FF9BFF0BF9329798FF3B" docLanguage="en" docName="zt03709p431.pdf" docOrigin="Zootaxa 3709 (5)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Halocypretta Chavtur and Stovbun 2008" docType="treatment" docVersion="13" lastPageNumber="429" masterDocId="FFCCE823FFDEFF91FF9CFF9D9409FFC3" masterDocTitle="Planktonic ostracods (Myodocopa: Halocyprididae) from abyssopelagic depths in the Atlantic, North Pacific and Gulf of Oman: Chavturia abyssopelagica (n. gen., n. sp.), Halocypretta profunda (n. sp.), Halocypretta parvirostrata Chavtur and Stovbun, 2008 and Halocypretta striata (Müller, 1906)" masterLastPageNumber="431" masterPageNumber="401" pageNumber="410" updateTime="1732066955351" updateUser="ExternalLinkService">
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<mods:titleInfo id="B25875500EAD47B11EEFE51F8D05AA98">
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<mods:title id="1A4454AA363F8B663EF23B75B9C344CB">Planktonic ostracods (Myodocopa: Halocyprididae) from abyssopelagic depths in the Atlantic, North Pacific and Gulf of Oman: Chavturia abyssopelagica (n. gen., n. sp.), Halocypretta profunda (n. sp.), Halocypretta parvirostrata Chavtur and Stovbun, 2008 and Halocypretta striata (Müller, 1906)</mods:title>
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<mods:namePart id="8CAD1C90C78C205AE0B43BD1738A4269">Angel, Martin V.</mods:namePart>
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<mods:typeOfResource id="AF31C34ADD09A3889F0FBE9281568638">text</mods:typeOfResource>
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<mods:title id="CAA0EF7F957D71FBECAD19B2D66117C2">Zootaxa</mods:title>
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<mods:part id="12F0831E44D362B6A21E1128ECFF07DE">
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<mods:date id="7A20B5A6A7E84A9658D28125A5D59434">2013</mods:date>
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<mods:number id="C5669A69F9C75FA499B3F98AFDC68B51">2013-09-09</mods:number>
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<mods:number id="DA38A450BDC5EC3928E5237C8D31C5E7">3709</mods:number>
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<mods:identifier id="DB3E83FEE6F6514F93FF3CC7C284F80C" type="DOI">10.11646/zootaxa.3709.5.1</mods:identifier>
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<treatment id="03F5905BFFD7FF9BFF0BF9329798FF3B" ID-DOI="http://doi.org/10.5281/zenodo.5614903" ID-GBIF-Taxon="119580134" ID-Zenodo-Dep="5614903" LSID="urn:lsid:plazi:treatment:03F5905BFFD7FF9BFF0BF9329798FF3B" httpUri="http://treatment.plazi.org/id/03F5905BFFD7FF9BFF0BF9329798FF3B" lastPageId="10" lastPageNumber="429" pageId="9" pageNumber="410">
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<subSubSection id="C34672C6FFD7FF98FF0BF93296E0F90A" box="[151,745,1710,1737]" pageId="9" pageNumber="410" type="nomenclature">
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<paragraph id="8BE3214DFFD7FF98FF0BF93296E0F90A" blockId="9.[151,745,1710,1737]" box="[151,745,1710,1737]" pageId="9" pageNumber="410">
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<heading id="D0AB9621FFD7FF98FF0BF93296E0F90A" bold="true" box="[151,745,1710,1737]" fontSize="11" level="1" pageId="9" pageNumber="410" reason="1">
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<emphasis id="B928FD5FFFD7FF98FF0BF93296E0F90A" bold="true" box="[151,745,1710,1737]" pageId="9" pageNumber="410">
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Genus
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<taxonomicName id="4C5C5ACEFFD7FF98FF72F93396E0F90A" ID-CoL="84QD2" authority="Chavtur and Stovbun, 2008" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[238,745,1710,1737]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="9" pageNumber="410" phylum="Arthropoda" rank="genus">
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<emphasis id="B928FD5FFFD7FF98FF72F9339583F90B" bold="true" box="[238,394,1710,1736]" italics="true" pageId="9" pageNumber="410">Halocypretta</emphasis>
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<bibRefCitation id="EFCD5CBCFFD7FF98FE0DF93296E0F90A" author="Chavtur and Stovbun" box="[401,745,1711,1737]" firstAuthor="Chavtur" pageId="9" pageNumber="410" pagination="47 - 54" refId="ref14893" refString="Chavtur, V. G. & Stovbun, G. G. (2008) New genus and a new species of pelagic ostracods of the subfamily Halocypridinae from the North Pacific. Publications of the Seto Marine Biological Laboratory, 40, 47 - 54." type="journal article" year="2008">Chavtur and Stovbun, 2008</bibRefCitation>
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</taxonomicName>
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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="C34672C6FFD7FF9BFF0BF9689798FF3B" lastPageId="10" lastPageNumber="411" pageId="9" pageNumber="410" type="discussion">
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<paragraph id="8BE3214DFFD7FF98FF0BF96897D7F8B9" blockId="9.[151,1436,1781,2022]" pageId="9" pageNumber="410">
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This genus has only recently been described from the North Pacific based on
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<taxonomicName id="4C5C5ACEFFD7FF98FBD5F96B9534F8F1" authority="Chavtur and Stovbun, 2008" authorityName="Chavtur and Stovbun" authorityYear="2008" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="9" pageNumber="410" phylum="Arthropoda" rank="species" species="parvirostrata">
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<emphasis id="B928FD5FFFD7FF98FBD5F96B90F6F8CE" box="[1097,1279,1782,1805]" italics="true" pageId="9" pageNumber="410">H. parvirostrata</emphasis>
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<bibRefCitation id="EFCD5CBCFFD7FF98FA90F9689534F8F1" author="Chavtur and Stovbun" firstAuthor="Chavtur" pageId="9" pageNumber="410" pagination="47 - 54" refId="ref14893" refString="Chavtur, V. G. & Stovbun, G. G. (2008) New genus and a new species of pelagic ostracods of the subfamily Halocypridinae from the North Pacific. Publications of the Seto Marine Biological Laboratory, 40, 47 - 54." type="journal article" year="2008">Chavtur and Stovbun, 2008</bibRefCitation>
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</taxonomicName>
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, which was designated as the
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<typeStatus id="54E79FEFFFD7FF98FD10F88796B5F8F1" box="[652,700,1818,1842]" pageId="9" pageNumber="410">type</typeStatus>
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species.
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<bibRefCitation id="EFCD5CBCFFD7FF98FCBEF8849068F8F1" author="Chavtur and Stovbun" box="[802,1121,1817,1842]" firstAuthor="Chavtur" pageId="9" pageNumber="410" pagination="47 - 54" refId="ref14893" refString="Chavtur, V. G. & Stovbun, G. G. (2008) New genus and a new species of pelagic ostracods of the subfamily Halocypridinae from the North Pacific. Publications of the Seto Marine Biological Laboratory, 40, 47 - 54." type="journal article" year="2008">Chavtur and Stovbun (2008)</bibRefCitation>
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included
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<taxonomicName id="4C5C5ACEFFD7FF98FB53F8849521F895" authority="Muller, 1906" authorityName="Muller" authorityYear="1906" class="Ostracoda" family="Halocyprididae" genus="Halocypris" kingdom="Animalia" order="Halocyprida" pageId="9" pageNumber="410" phylum="Arthropoda" rank="species" species="striata">
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<emphasis id="B928FD5FFFD7FF98FB53F8849195F8F2" box="[1231,1436,1817,1841]" italics="true" pageId="9" pageNumber="410">Halocypris striata</emphasis>
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<bibRefCitation id="EFCD5CBCFFD7FF98FF0BF8A09521F895" author="Muller, G. W." box="[151,296,1853,1878]" firstAuthor="Muller" pageId="9" pageNumber="410" pagination="29 - 154" publicationUrl="http://dx.doi.org/10.5962/bhl.title.2171" refId="ref15084" refString="Muller, G. W. (1906) Ostracoda. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition ' Valdivia' 1989 - 1899, 8, 29 - 154. http: // dx. doi. org / 10.5962 / bhl. title. 2171" title="Ostracoda" type="book chapter" volumeTitle="Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition ' Valdivia' 1989 - 1899, 8" year="1906">
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Müller,
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<quantity id="4CA48CA8FFD7FF98FF6CF8A09521F895" box="[240,296,1853,1878]" metricMagnitude="1" metricUnit="m" metricValue="4.84124" pageId="9" pageNumber="410" unit="in" value="1906.0">1906</quantity>
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</bibRefCitation>
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</taxonomicName>
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in their new genus, while noting the inadequacies of the original description. Their material included only males of the
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<taxonomicName id="4C5C5ACEFFD7FF98FEC3F8FF961FF8BA" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[351,534,1890,1913]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="9" pageNumber="410" phylum="Arthropoda" rank="species" species="parvirostrata">
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<emphasis id="B928FD5FFFD7FF98FEC3F8FF961FF8BA" box="[351,534,1890,1913]" italics="true" pageId="9" pageNumber="410">H. parvirostrata</emphasis>
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</taxonomicName>
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, so its females have remained unknown.
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</paragraph>
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<paragraph id="8BE3214DFFD7FF9BFF5BF8189798FF3B" blockId="9.[151,1436,1781,2022]" lastBlockId="10.[151,1436,151,248]" lastPageId="10" lastPageNumber="411" pageId="9" pageNumber="410">
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Three specimens of this species have been identified in material from the North-east Pacific sent to me by Dr Moira Galbraith—an adult male, an adult female and an A-
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<specimenCount id="9D5AEAC4FFD7FF98FCC4F83797B1F801" box="[856,952,1961,1986]" pageId="9" pageNumber="410" type="female">1 female</specimenCount>
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, which was undergoing its final maturation moult. The original description is supplemented with observations on the adult female, and the meristic characters of the two adults are used in the comparisons between all the species. These specimens of
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<taxonomicName id="4C5C5ACEFFD4FF9BFB1FFF049130FF6C" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[1155,1337,152,176]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="10" pageNumber="411" phylum="Arthropoda" rank="species" species="parvirostrata">
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<emphasis id="B928FD5FFFD4FF9BFB1FFF049130FF6C" box="[1155,1337,152,176]" italics="true" pageId="10" pageNumber="411">H. parvirostrata</emphasis>
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</taxonomicName>
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not only came from further north and east in the North Pacific than specimens in
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<bibRefCitation id="EFCD5CBCFFD4FF9BFC59FF219100FF17" author="Chavtur and Stovbun" box="[965,1289,188,213]" firstAuthor="Chavtur" pageId="10" pageNumber="411" pagination="47 - 54" refId="ref14893" refString="Chavtur, V. G. & Stovbun, G. G. (2008) New genus and a new species of pelagic ostracods of the subfamily Halocypridinae from the North Pacific. Publications of the Seto Marine Biological Laboratory, 40, 47 - 54." type="journal article" year="2008">Chavtur and Stovbun (2008)</bibRefCitation>
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. but first this species caught in the Atlantic during the CMarZ cruise is described.
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</paragraph>
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</subSubSection>
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<subSubSection id="C34672C6FFC2FF8DFF0BFF059606FF72" box="[151,527,151,178]" pageId="28" pageNumber="429" type="nomenclature">
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<paragraph id="8BE3214DFFC2FF8DFF0BFF059606FF72" blockId="28.[151,527,151,178]" box="[151,527,151,178]" pageId="28" pageNumber="429">
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<heading id="D0AB9621FFC2FF8DFF0BFF059606FF72" bold="true" box="[151,527,151,178]" fontSize="11" level="1" pageId="28" pageNumber="429" reason="1">
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<emphasis id="B928FD5FFFC2FF8DFF0BFF059606FF72" bold="true" box="[151,527,151,178]" pageId="28" pageNumber="429">
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Zoogeography of
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<taxonomicName id="4C5C5ACEFFC2FF8DFEEFFF0A9606FF72" ID-CoL="84QD2" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[371,527,151,177]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="genus">
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<emphasis id="B928FD5FFFC2FF8DFEEFFF0A9606FF72" bold="true" box="[371,527,151,177]" italics="true" pageId="28" pageNumber="429">Halocypretta</emphasis>
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</taxonomicName>
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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="C34672C6FFC2FF8DFF0BFF439133FCD0" pageId="28" pageNumber="429" type="description">
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<paragraph id="8BE3214DFFC2FF8DFF0BFF439133FCD0" blockId="28.[151,1436,222,787]" pageId="28" pageNumber="429">
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All records for the species of
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<taxonomicName id="4C5C5ACEFFC2FF8DFD8DFF4396ADFF35" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[529,676,222,246]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="genus">
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<emphasis id="B928FD5FFFC2FF8DFD8DFF4396ADFF35" box="[529,676,222,246]" italics="true" pageId="28" pageNumber="429">Halocypretta</emphasis>
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</taxonomicName>
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are summarised in
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<tableCitation id="C6DE14F6FFC2FF8DFC03FF4397F2FF34" box="[927,1019,222,247]" captionStart="TABLE 3" captionStartId="27.[151,235,155,177]" captionTargetBox="[165,1409,207,1075]" captionTargetPageId="27" captionText="TABLE 3. Positions at which Halocypretta species have been recorded." httpUri="http://table.plazi.org/id/DF2371C5FFC5FF8AFF0BFF069778FF72" pageId="28" pageNumber="429" tableUuid="DF2371C5FFC5FF8AFF0BFF069778FF72">Table 3</tableCitation>
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, and
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<figureCitation id="13673DC8FFC2FF8DFBDBFF4390B2FF34" box="[1095,1211,222,247]" captionStart="FIGURE 17" captionStartId="27.[151,250,1934,1956]" captionTargetBox="[157,1430,1287,1904]" captionTargetId="figure@27.[151,1436,1280,1910]" captionTargetPageId="27" captionText="FIGURE 17. Map showing the global distribution of all records of Halocypretta species. Note the record of H. striata by Granata and Caporiacco (1949) has not been plotted because there is no means of verifying this record and it seems probable that their specimen may have been H. profunda." figureDoi="http://doi.org/10.5281/zenodo.222457" httpUri="https://zenodo.org/record/222457/files/figure.png" pageId="28" pageNumber="429">Figure 17</figureCitation>
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shows the known geographical distributions of the three species.
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<taxonomicName id="4C5C5ACEFFC2FF8DFD59FE9E9789FED9" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[709,896,259,282]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="parvirostrata">
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<emphasis id="B928FD5FFFC2FF8DFD59FE9E9789FED9" box="[709,896,259,282]" italics="true" pageId="28" pageNumber="429">H. parvirostrata</emphasis>
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</taxonomicName>
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is a North Pacific species that appears to be restricted to high northern latitudes where there is seasonal vertical mixing.
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<taxonomicName id="4C5C5ACEFFC2FF8DFBBFFEBA90B8FEFD" authorityName="Angel" authorityYear="2013" box="[1059,1201,294,318]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="profunda">
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<emphasis id="B928FD5FFFC2FF8DFBBFFEBA90B8FEFD" box="[1059,1201,294,318]" italics="true" pageId="28" pageNumber="429">H. profunda</emphasis>
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</taxonomicName>
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is restricted to low latitudes in the tropical Atlantic, and
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<taxonomicName id="4C5C5ACEFFC2FF8DFDAFFED69697FEA1" baseAuthorityName="Muller" baseAuthorityYear="1906" box="[563,670,331,354]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="striata">
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<emphasis id="B928FD5FFFC2FF8DFDAFFED69697FEA1" box="[563,670,331,354]" italics="true" pageId="28" pageNumber="429">H. striata</emphasis>
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</taxonomicName>
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to the southern Indian Ocean where the upper water columns are not subject to seasonal turn over. The record of
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<taxonomicName id="4C5C5ACEFFC2FF8DFD2EFEF2972AFE45" baseAuthorityName="Muller" baseAuthorityYear="1906" box="[690,803,367,390]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="striata">
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<emphasis id="B928FD5FFFC2FF8DFD2EFEF2972AFE45" box="[690,803,367,390]" italics="true" pageId="28" pageNumber="429">H. striata</emphasis>
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</taxonomicName>
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from the Atlantic (
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<bibRefCitation id="EFCD5CBCFFC2FF8DFB8DFEF2917DFE44" author="Granata and Caporiacco" box="[1041,1396,366,391]" firstAuthor="Granata" pageId="28" pageNumber="429" pagination="1 - 51" refId="ref14976" refString="Granata, L. & Caporiacco, L. di. (1949) Ostracods marins recueillis pendant les croisieres du Prince Albert Ier de Monaco. Resultats des campagnes scientifiques accomplies sur son yacht par Albert Ier, prince souverain de Monaco, 109, 1 - 51. http: // dx. doi. org / 10.5962 / bhl. title. 2169" type="journal article" year="1949">Granata and Caporiacco 1949</bibRefCitation>
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) is disregarded as the authors provided no information whereby this identification can be verified. The distribution data would suggest that, if their specimen was indeed a
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<taxonomicName id="4C5C5ACEFFC2FF8DFC8CFE2B97AAFE0D" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[784,931,438,462]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="genus">
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<emphasis id="B928FD5FFFC2FF8DFC8CFE2B97AAFE0D" box="[784,931,438,462]" italics="true" pageId="28" pageNumber="429">Halocypretta</emphasis>
|
|
</taxonomicName>
|
|
species, then it may have been
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFA90FE2A919DFE0D" authorityName="Angel" authorityYear="2013" box="[1292,1428,438,462]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="profunda">
|
|
<emphasis id="B928FD5FFFC2FF8DFA90FE2A919DFE0D" box="[1292,1428,438,462]" italics="true" pageId="28" pageNumber="429">H. profunda</emphasis>
|
|
</taxonomicName>
|
|
. However, no other specimens have been identified from numerous samples collected at abyssopelagic depths in the North Atlantic during the extensive sampling programmes carried out from RRS Discovery. The sedimentary fluxes, which are likely to provide the nutriment for such deep living species, are likely to be more seasonally pulsed at high latitudes than at the lower tropical and subtropical latitudes where the latter two species occur.
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFA1DFDDA94E9FD41" baseAuthorityName="Muller" baseAuthorityYear="1906" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="striata">
|
|
<emphasis id="B928FD5FFFC2FF8DFA1DFDDA94E9FD41" italics="true" pageId="28" pageNumber="429">H. striata</emphasis>
|
|
</taxonomicName>
|
|
has not been collected recently despite the extensive sampling that was undertaken during the International Indian Ocean Expedition and more recent expeditions (e.g.
|
|
<bibRefCitation id="EFCD5CBCFFC2FF8DFCA2FD12905AFD64" author="Drapun and Smith" box="[830,1107,654,679]" firstAuthor="Drapun" pageId="28" pageNumber="429" refId="ref14941" refString="Drapun, I. & Smith, S. L. (2012) Halocyprid ostracods of the Arabian Sea. Sultan Quaboos University Printing Press, Muscat- Sultanate of Oman, 223 pp." type="book" year="2012">Drapun and Smith 2012</bibRefCitation>
|
|
), probably because sampling was seldom deep enough and the samplers will not have filtered enough water to catch these relatively uncommon animals. From the known distributions of these species, they would seem to be associated with the deep circulation and water masses. If so, then further abyssopelagic sampling is likely to extend these ranges considerably.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="C34672C6FFC2FF8DFF0BFCFC9082FA7B" pageId="28" pageNumber="429" type="discussion">
|
|
<paragraph id="8BE3214DFFC2FF8DFF0BFCFC963FFCB8" blockId="28.[151,566,865,891]" box="[151,566,865,891]" pageId="28" pageNumber="429">
|
|
<heading id="D0AB9621FFC2FF8DFF0BFCFC963FFCB8" bold="true" box="[151,566,865,891]" fontSize="11" level="1" pageId="28" pageNumber="429" reason="1">
|
|
<emphasis id="B928FD5FFFC2FF8DFF0BFCFC963FFCB8" bold="true" box="[151,566,865,891]" pageId="28" pageNumber="429">Comparisons between the species</emphasis>
|
|
</heading>
|
|
</paragraph>
|
|
<paragraph id="8BE3214DFFC2FF8DFF0BFC3A9082FA7B" blockId="28.[151,1436,935,1465]" pageId="28" pageNumber="429">
|
|
<tableCitation id="C6DE14F6FFC2FF8DFF0BFC3A94E3FC03" box="[151,234,935,960]" captionStart="TABLE 2" captionStartId="19.[151,235,296,318]" captionTargetBox="[165,1416,451,1971]" captionTargetPageId="19" captionText="TABLE 2. Comparison of meristic characters of male and female Chavturia abyssopelagica n. sp., Halocypris parvirostrata Chavtur & Stovbun, 2008, H. profunda n. sp. and H. striata (Müller, 1906). Characters that distinguish C. abyssopelagica from the Halocypretta species are italicised, and those that in combination distinguish between the three Halocypretta species are emboldened." httpUri="http://table.plazi.org/id/DF2371C5FFCDFF82FF0BFEB59513FE60" pageId="28" pageNumber="429" tableUuid="DF2371C5FFCDFF82FF0BFEB59513FE60">Table 2</tableCitation>
|
|
summarises the meristic characters of the four species described here, based on measurements of the
|
|
<typeStatus id="54E79FEFFFC2FF8DFAF7FC359192FC03" box="[1387,1435,936,960]" pageId="28" pageNumber="429">type</typeStatus>
|
|
specimens for
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFEA6FC51960EFC27" authorityName="Angel" authorityYear="2013" box="[314,519,972,996]" class="Ostracoda" family="Halocyprididae" genus="Chavturia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="abyssopelagica" status="sp. nov.">
|
|
<emphasis id="B928FD5FFFC2FF8DFEA6FC51960EFC27" box="[314,519,972,996]" italics="true" pageId="28" pageNumber="429">C. abyssopelagica</emphasis>
|
|
</taxonomicName>
|
|
<taxonomicNameLabel id="A21B4024FFC2FF8DFD91FC509640FC27" box="[525,585,973,996]" pageId="28" pageNumber="429" rank="species">n. sp.</taxonomicNameLabel>
|
|
and
|
|
<emphasis id="B928FD5FFFC2FF8DFD1CFC509743FC27" box="[640,842,972,996]" italics="true" pageId="28" pageNumber="429">
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFD1CFC509701FC27" authorityName="Angel" authorityYear="2013" box="[640,776,972,996]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="profunda" status="sp. nov.">H. profunda</taxonomicName>
|
|
<taxonomicNameLabel id="A21B4024FFC2FF8DFC92FC509743FC27" box="[782,842,973,996]" pageId="28" pageNumber="429" rank="species">n. sp.</taxonomicNameLabel>
|
|
</emphasis>
|
|
, and the new specimens of
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFBE3FC50913CFC27" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[1151,1333,973,996]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="parvirostrata">
|
|
<emphasis id="B928FD5FFFC2FF8DFBE3FC50913CFC27" box="[1151,1333,973,996]" italics="true" pageId="28" pageNumber="429">H. parvirostrata</emphasis>
|
|
</taxonomicName>
|
|
from the Northeast Pacific and of
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFE31FC6C9611FBC4" baseAuthorityName="Muller" baseAuthorityYear="1906" box="[429,536,1008,1032]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="striata">
|
|
<emphasis id="B928FD5FFFC2FF8DFE31FC6C9611FBC4" box="[429,536,1008,1032]" italics="true" pageId="28" pageNumber="429">H. striata</emphasis>
|
|
</taxonomicName>
|
|
from the Gulf of
|
|
<collectingCountry id="F34B61DDFFC2FF8DFD42FC6D972FFBCB" box="[734,806,1008,1032]" name="Oman" pageId="28" pageNumber="429">Oman</collectingCountry>
|
|
. The substantive differences between the two genera are the relative breadth of the carapace, the structure of the frontal organs, the lengths of the e-seta of the first antenna, the lengths of the swimming setae on the second antenna, the lengths of the f- and g-setae on the endopodites of the second antenna, and the lengths of the copulatory appendages. The differences between the
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFB35FBC19135FBB7" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[1193,1340,1116,1140]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="genus">
|
|
<emphasis id="B928FD5FFFC2FF8DFB35FBC19135FBB7" box="[1193,1340,1116,1140]" italics="true" pageId="28" pageNumber="429">Halocypretta</emphasis>
|
|
</taxonomicName>
|
|
species, as might be expected, are more subtle. There are differences in the shapes of the carapaces as well as
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFAB2FB1C9195FB54" baseAuthorityName="Muller" baseAuthorityYear="1906" box="[1326,1436,1152,1176]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="striata">
|
|
<emphasis id="B928FD5FFFC2FF8DFAB2FB1C9195FB54" box="[1326,1436,1152,1176]" italics="true" pageId="28" pageNumber="429">H. striata</emphasis>
|
|
</taxonomicName>
|
|
being smaller than the other two species. The length of the rostrum and the depths of the incisures differ. The longer e-seta of the first antenna distinguishes
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFD2AFB54974BFB23" authorityName="Angel" authorityYear="2013" box="[694,834,1224,1248]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="profunda">
|
|
<emphasis id="B928FD5FFFC2FF8DFD2AFB54974BFB23" box="[694,834,1224,1248]" italics="true" pageId="28" pageNumber="429">H. profunda</emphasis>
|
|
</taxonomicName>
|
|
from the other two species, although the difference between males of
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFEF1FB7095F0FAC7" authorityName="Angel" authorityYear="2013" box="[365,505,1260,1284]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="profunda">
|
|
<emphasis id="B928FD5FFFC2FF8DFEF1FB7095F0FAC7" box="[365,505,1260,1284]" italics="true" pageId="28" pageNumber="429">H. profunda</emphasis>
|
|
</taxonomicName>
|
|
and
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFDAAFB7096ACFAC7" baseAuthorityName="Muller" baseAuthorityYear="1906" box="[566,677,1261,1284]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="striata">
|
|
<emphasis id="B928FD5FFFC2FF8DFDAAFB7096ACFAC7" box="[566,677,1261,1284]" italics="true" pageId="28" pageNumber="429">H. striata</emphasis>
|
|
</taxonomicName>
|
|
is trivial. The copulatory appendage in
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFBE2FB709103FAC7" authorityName="Angel" authorityYear="2013" box="[1150,1290,1260,1284]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="profunda">
|
|
<emphasis id="B928FD5FFFC2FF8DFBE2FB709103FAC7" box="[1150,1290,1260,1284]" italics="true" pageId="28" pageNumber="429">H. profunda</emphasis>
|
|
</taxonomicName>
|
|
is relatively longer and broader than in the other two species. The number of muscles distinguishes
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFBE7FA8C913AFAE4" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[1147,1331,1296,1320]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="parvirostrata">
|
|
<emphasis id="B928FD5FFFC2FF8DFBE7FA8C913AFAE4" box="[1147,1331,1296,1320]" italics="true" pageId="28" pageNumber="429">H. parvirostrata</emphasis>
|
|
</taxonomicName>
|
|
from the other two. The meristic data presented have an inherent weakness in that there is a lack of information about the extent of interspecific variability, but without data from many more specimens the significance of any of the differences cannot be established. However, they do provide a useful starting point for identification, and in time the measurement of more specimens may confirm which of the differences are significant.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="C34672C6FFC2FF8DFF0BF991960CF9E5" box="[151,517,1548,1574]" pageId="28" pageNumber="429" type="multiple">
|
|
<paragraph id="8BE3214DFFC2FF8DFF0BF991960CF9E5" blockId="28.[151,517,1548,1574]" box="[151,517,1548,1574]" pageId="28" pageNumber="429">
|
|
<heading id="D0AB9621FFC2FF8DFF0BF991960CF9E5" bold="true" box="[151,517,1548,1574]" fontSize="11" level="1" pageId="28" pageNumber="429" reason="1">
|
|
<emphasis id="B928FD5FFFC2FF8DFF0BF991960CF9E5" bold="true" box="[151,517,1548,1574]" pageId="28" pageNumber="429">Key to distinguish the species</emphasis>
|
|
</heading>
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="C34672C6FFC2FF8DFF0BF9D69707F8F5" pageId="28" pageNumber="429" type="key">
|
|
<key id="FFCD767CFFC2FF8DFF0BF9D69192F930" pageId="28" pageNumber="429">
|
|
<keyStep id="30A839E8FFC2FF8DFF0BF9D69192F9BD" pageId="28" pageNumber="429">
|
|
<paragraph id="8BE3214DFFC2FF8DFF0BF9D69195F9A2" blockId="28.[151,1436,1611,1779]" box="[151,1436,1611,1633]" pageId="28" pageNumber="429">
|
|
<keyLead id="30AD8278FFC2FF8DFF0BF9D69195F9A2" box="[151,1436,1611,1633]" pageId="28" pageNumber="429">
|
|
1. Adult carapace length <
|
|
<quantity id="4CA48CA8FFC2FF8DFE5BF9D695F7F9A2" box="[455,510,1611,1633]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="28" pageNumber="429" unit="mm" value="3.0">3 mm</quantity>
|
|
.............................................................
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFB48F9D19195F9A2" baseAuthorityName="Muller" baseAuthorityYear="1906" box="[1236,1436,1612,1633]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="striata">
|
|
<emphasis id="B928FD5FFFC2FF8DFB48F9D19195F9A2" box="[1236,1436,1612,1633]" italics="true" pageId="28" pageNumber="429">Halocypretta striata</emphasis>
|
|
</taxonomicName>
|
|
</keyLead>
|
|
</paragraph>
|
|
<paragraph id="8BE3214DFFC2FF8DFF0BF9F49192F9BD" blockId="28.[151,1436,1611,1779]" box="[151,1435,1640,1662]" pageId="28" pageNumber="429">
|
|
<keyLead id="30AD8278FFC2FF8DFF0BF9F49192F9BD" box="[151,1435,1640,1662]" pageId="28" pageNumber="429">
|
|
-. Adult carapace length>
|
|
<quantity id="4CA48CA8FFC2FF8DFE5BF9F595F7F9BD" box="[455,510,1640,1662]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="28" pageNumber="429" unit="mm" value="3.0">3 mm</quantity>
|
|
............................................................................ 2
|
|
</keyLead>
|
|
</paragraph>
|
|
</keyStep>
|
|
<keyStep id="30A839E8FFC2FF8DFF0BF9189192F97A" pageId="28" pageNumber="429">
|
|
<paragraph id="8BE3214DFFC2FF8DFF0BF9189192F958" blockId="28.[151,1436,1611,1779]" box="[151,1435,1669,1691]" pageId="28" pageNumber="429">
|
|
<keyLead id="30AD8278FFC2FF8DFF0BF9189192F958" box="[151,1435,1669,1691]" pageId="28" pageNumber="429">
|
|
2. Carapace breadth: length ratio <41 %..................................................
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFB3CF91B9192F958" authorityName="Angel" authorityYear="2013" box="[1184,1435,1670,1691]" class="Ostracoda" family="Halocyprididae" genus="Chavturia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="abyssopelagica">
|
|
<emphasis id="B928FD5FFFC2FF8DFB3CF91B9192F958" box="[1184,1435,1670,1691]" italics="true" pageId="28" pageNumber="429">Chavturia abyssopelagica</emphasis>
|
|
</taxonomicName>
|
|
</keyLead>
|
|
</paragraph>
|
|
<paragraph id="8BE3214DFFC2FF8DFF0BF9399192F97A" blockId="28.[151,1436,1611,1779]" box="[151,1435,1699,1721]" pageId="28" pageNumber="429">
|
|
<keyLead id="30AD8278FFC2FF8DFF0BF9399192F97A" box="[151,1435,1699,1721]" pageId="28" pageNumber="429">-. Carapace breadth: length ratio>49 %...................................................................... 3</keyLead>
|
|
</paragraph>
|
|
</keyStep>
|
|
<keyStep id="30A839E8FFC2FF8DFF0BF95D9192F930" pageId="28" pageNumber="429">
|
|
<paragraph id="8BE3214DFFC2FF8DFF0BF95D9192F915" blockId="28.[151,1436,1611,1779]" box="[151,1435,1728,1750]" pageId="28" pageNumber="429">
|
|
<keyLead id="30AD8278FFC2FF8DFF0BF95D9192F915" box="[151,1435,1728,1750]" pageId="28" pageNumber="429">
|
|
3. First antenna e-seta †>64 % CL.........................................................
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFB20F95C9192F915" authorityName="Angel" authorityYear="2013" box="[1212,1435,1729,1750]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="profunda">
|
|
<emphasis id="B928FD5FFFC2FF8DFB20F95C9192F915" box="[1212,1435,1729,1750]" italics="true" pageId="28" pageNumber="429">Halocypretta profunda</emphasis>
|
|
</taxonomicName>
|
|
</keyLead>
|
|
</paragraph>
|
|
<paragraph id="8BE3214DFFC2FF8DFF0BF9439192F930" blockId="28.[151,1436,1611,1779]" box="[151,1435,1757,1779]" pageId="28" pageNumber="429">
|
|
<keyLead id="30AD8278FFC2FF8DFF0BF9439192F930" box="[151,1435,1757,1779]" pageId="28" pageNumber="429">
|
|
-. First antenna e-seta †<61 % CL.....................................................
|
|
<taxonomicName id="4C5C5ACEFFC2FF8DFB04F9439192F930" authorityName="Chavtur and Stovbun" authorityYear="2008" box="[1176,1435,1758,1779]" class="Ostracoda" family="Halocyprididae" genus="Halocypretta" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="28" pageNumber="429" phylum="Arthropoda" rank="species" species="parvirostrata">
|
|
<emphasis id="B928FD5FFFC2FF8DFB04F9439192F930" box="[1176,1435,1758,1779]" italics="true" pageId="28" pageNumber="429">Halocypretta parvirostrata</emphasis>
|
|
</taxonomicName>
|
|
</keyLead>
|
|
</paragraph>
|
|
</keyStep>
|
|
</key>
|
|
<paragraph id="8BE3214DFFC2FF8DFF0BF8BD9707F8F5" blockId="28.[151,782,1824,1846]" box="[151,782,1824,1846]" pageId="28" pageNumber="429">
|
|
†
|
|
<tableCitation id="C6DE14F6FFC2FF8DFF36F8BD94FDF8F5" box="[170,244,1824,1846]" captionStart="TABLE 3" captionStartId="27.[151,235,155,177]" captionTargetBox="[165,1409,207,1075]" captionTargetPageId="27" captionText="TABLE 3. Positions at which Halocypretta species have been recorded." httpUri="http://table.plazi.org/id/DF2371C5FFC5FF8AFF0BFF069778FF72" pageId="28" pageNumber="429" tableUuid="DF2371C5FFC5FF8AFF0BFF069778FF72">Table 3</tableCitation>
|
|
lists several other distinguishing meristic characters.
|
|
</paragraph>
|
|
</subSubSection>
|
|
</treatment>
|
|
</document> |