269 lines
31 KiB
XML
269 lines
31 KiB
XML
<document id="68F498F808B452E1FDBDA06A5B4443C9" ID-DOI="10.11646/zootaxa.3835.4.2" ID-GBIF-Dataset="01da15e5-14ca-4506-89fd-2055b906f4ff" ID-ISSN="1175-5326" ID-Zenodo-Dep="249622" ID-ZooBank="F492B5ED-0CA7-436B-94AF-EE4C99D630AF" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460457528435" checkinUser="plazi" docAuthor="Simone, Luiz Ricardo L. & Cunha, Carlo M." docDate="2014" docId="EF2F87FC1B74C41AFF58BB38FE73ED77" docLanguage="en" docName="zt03835p468.pdf" docOrigin="Zootaxa 3835 (4)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Emarginula icosisculpta Simone & Cunha, 2014, new species" docType="treatment" docVersion="8" lastPageNumber="456" masterDocId="1316FF841B66C409FFCFBF5CFF85E92F" masterDocTitle="Taxonomical study on the mollusks collected in Marion-Dufresne (MD 55) and other expeditions to SE Brazil: the Fissurellidae (Mollusca, Vetigastropoda)" masterLastPageNumber="468" masterPageNumber="437" pageNumber="455" updateTime="1698302498860" updateUser="plazi">
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<mods:mods id="74139E122FE8A778F002CB51BAB2F6D0" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="4182F1136D2A0ED613F07562D3300FA2">
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<mods:title id="F6A36394DAE8532C683F1724CB1D041B">Taxonomical study on the mollusks collected in Marion-Dufresne (MD 55) and other expeditions to SE Brazil: the Fissurellidae (Mollusca, Vetigastropoda)</mods:title>
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</mods:titleInfo>
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<mods:name id="7DD0CA04538A6BC64261FF50E8FE4D0E" type="personal">
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<mods:roleTerm id="75261D55520DBF7E3F656A6DD635CC29">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="DDAFC72DE07C7306078328B810691F3B">Simone, Luiz Ricardo L.</mods:namePart>
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</mods:name>
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<mods:name id="B55A28017809810EC8591B6DF27C24A8" type="personal">
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<mods:role id="87234E9BC93CCA5CCE272A2E7DA18076">
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<mods:roleTerm id="57D3E386483AAB0C11FF5D36890AA4D9">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="F3BAA531DDF6B789E60AA0B2B6C3F819">Cunha, Carlo M.</mods:namePart>
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</mods:name>
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<mods:typeOfResource id="DCE528B8137A67315074108421C53C41">text</mods:typeOfResource>
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<mods:titleInfo id="CA767561B8F2245D63B7E6A5931492E8">
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<mods:title id="DEC79FD0C7A772B978C4BACE3EBF05EE">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="8B008D9F10BE7807F5C6F02C716BBE3F">
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<mods:date id="695496B4B0487794038D3D59FEBC0C22">2014</mods:date>
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<mods:detail id="49E4720086036C00974D88B0B18444B0" type="volume">
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<mods:number id="C7125D0091A3D3CE2C1BDC8DF69E0C1D">3835</mods:number>
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</mods:detail>
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<mods:detail id="CA0F6373A57C19ABA7E7E888925260CD" type="issue">
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<mods:number id="E35C0BE8CDB56C3AAF0ACB6237145743">4</mods:number>
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<mods:start id="A561BED5D6A834D1FDF0C0A7E5D05FF2">437</mods:start>
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<mods:classification id="FF7EA714F26429BCF97B8B2E6A951E2B">journal article</mods:classification>
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<mods:identifier id="219BEC21DA367A2CB63F77F4041FAC72" type="DOI">10.11646/zootaxa.3835.4.2</mods:identifier>
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<mods:identifier id="C668ACCD3C0CE1449C92437945843765" type="GBIF-Dataset">01da15e5-14ca-4506-89fd-2055b906f4ff</mods:identifier>
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<mods:identifier id="3A53E19C5BD03D60F7D599B938D2AC04" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="ED32763A487AB7A3059783EB4390FA80" type="Zenodo-Dep">249622</mods:identifier>
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<mods:identifier id="95FBC83E09BDC1B978784C2A0F4FA94B" type="ZooBank">F492B5ED-0CA7-436B-94AF-EE4C99D630AF</mods:identifier>
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</mods:mods>
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<treatment id="EF2F87FC1B74C41AFF58BB38FE73ED77" ID-DOI="http://doi.org/10.5281/zenodo.6133975" ID-GBIF-Taxon="119511439" ID-Zenodo-Dep="6133975" LSID="urn:lsid:plazi:treatment:EF2F87FC1B74C41AFF58BB38FE73ED77" httpUri="http://treatment.plazi.org/id/EF2F87FC1B74C41AFF58BB38FE73ED77" lastPageId="19" lastPageNumber="456" pageId="18" pageNumber="455">
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<subSubSection id="2F9C65611B74C41BFF58BB38FBC9EDC8" pageId="18" pageNumber="455" type="nomenclature">
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<paragraph id="673936EA1B74C41BFF58BB38FDD9ED51" blockId="18.[151,604,1124,1183]" box="[151,604,1124,1150]" pageId="18" pageNumber="455">
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||
<heading id="3C7181861B74C41BFF58BB38FDD9ED51" bold="true" box="[151,604,1124,1150]" fontSize="11" level="1" pageId="18" pageNumber="455" reason="1">
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||
<emphasis id="55F2EAF81B74C41BFF58BB38FDD9ED51" bold="true" box="[151,604,1124,1150]" pageId="18" pageNumber="455">
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||
<emphasis id="55F2EAF81B74C41BFF58BB38FE40ED51" bold="true" box="[151,453,1124,1150]" italics="true" pageId="18" pageNumber="455">
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<taxonomicName id="A0864D691B74C41BFF58BB38FE3AED51" ID-CoL="6F7D4" box="[151,447,1124,1150]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="18" pageNumber="455" phylum="Mollusca" rank="species" species="icosisculpta" status="sp. nov.">Emarginula icosisculpta</taxonomicName>
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,
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</emphasis>
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<taxonomicNameLabel id="4EC157831B74C41BFE03BB38FDD9ED51" box="[460,604,1124,1150]" pageId="18" pageNumber="455" rank="species">new species</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="673936EA1B74C41BFF58BBDAFED1EDB0" blockId="18.[151,604,1124,1183]" box="[151,340,1158,1183]" pageId="18" pageNumber="455">Figures 135–139</paragraph>
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<paragraph id="673936EA1B74C41BFF58BB92FBC9EDC8" blockId="18.[151,1436,1230,2011]" box="[151,1100,1230,1255]" pageId="18" pageNumber="455">
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<emphasis id="55F2EAF81B74C41BFF58BB92FF66EDC8" bold="true" box="[151,227,1230,1255]" pageId="18" pageNumber="455">
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<typeStatus id="B83D88481B74C41BFF58BB92FF5AEDC8" box="[151,223,1230,1255]" pageId="18" pageNumber="455">Types</typeStatus>
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.
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</emphasis>
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<typeStatus id="B83D88481B74C41BFF25BB92FED7EDC8" box="[234,338,1230,1255]" pageId="18" pageNumber="455" type="holotype">Holotype</typeStatus>
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MNHN 25323.
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<typeStatus id="B83D88481B74C41BFDC5BB93FDF4EDC8" box="[522,625,1231,1255]" pageId="18" pageNumber="455" type="paratype">Paratype</typeStatus>
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: MZSP
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<date id="1338102A1B74C41BFD04BB93FCA7EDC8" box="[715,802,1231,1255]" pageId="18" pageNumber="455" value="49-10-29">102949</date>
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, 1 shell from
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<typeStatus id="B83D88481B74C41BFC74BB93FC6EEDC8" box="[955,1003,1231,1255]" pageId="18" pageNumber="455">type</typeStatus>
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locality.
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</paragraph>
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</subSubSection>
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<subSubSection id="2F9C65611B74C41BFF08BBAEFD1BEC00" pageId="18" pageNumber="455" type="materials_examined">
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||
<paragraph id="673936EA1B74C41BFF08BBAEFD1BEC00" blockId="18.[151,1436,1230,2011]" pageId="18" pageNumber="455">
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<emphasis id="55F2EAF81B74C41BFF08BBAEFEEDEC24" bold="true" box="[199,360,1266,1291]" pageId="18" pageNumber="455">
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<typeStatus id="B83D88481B74C41BFF08BBAEFE87EC24" box="[199,258,1266,1291]" pageId="18" pageNumber="455">Type</typeStatus>
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locality.
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</emphasis>
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<collectingCountry id="1F91767A1B74C41BFEBDBBAEFE3FEC24" box="[370,442,1266,1291]" name="Brazil" pageId="18" pageNumber="455">Brazil</collectingCountry>
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. Espírito Santo; Ilha de Trindade, Enseada dos Portugueses,
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<geoCoordinate id="02B2502D1B74C41BFBB5BBAEFB7BEC24" box="[1146,1278,1266,1291]" direction="south" orientation="latitude" pageId="18" pageNumber="455" precision="15" value="-20.504168">20°30’15”S</geoCoordinate>
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<geoCoordinate id="02B2502D1B74C41BFAC7BBAEFA12EC24" box="[1288,1431,1266,1291]" direction="west" orientation="longitude" pageId="18" pageNumber="455" precision="15" value="-29.312777">29°18’46”W</geoCoordinate>
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,
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<quantity id="A07E9B0F1B74C41BFF58BA4BFF7FEC01" box="[151,250,1303,1327]" metricMagnitude="1" metricUnit="m" metricValue="1.1" metricValueMax="1.2" metricValueMin="1.0" pageId="18" pageNumber="455" unit="m" value="11.0" valueMax="12.0" valueMin="10.0">10–12 m</quantity>
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(MD55 sta. 1; Bouchet col.,
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<date id="1338102A1B74C41BFDF0BA4BFD14EC00" box="[575,657,1303,1327]" bridgedPair="/" pageId="18" pageNumber="455" value="1987-05">v/1987</date>
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).
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</paragraph>
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</subSubSection>
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<subSubSection id="2F9C65611B74C41BFF08BA66FB69EC58" pageId="18" pageNumber="455" type="diagnosis">
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<paragraph id="673936EA1B74C41BFF08BA66FB69EC58" blockId="18.[151,1436,1230,2011]" pageId="18" pageNumber="455">
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<emphasis id="55F2EAF81B74C41BFF08BA66FEC4EC7C" bold="true" box="[199,321,1338,1363]" pageId="18" pageNumber="455">Diagnosis.</emphasis>
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Apex pointed, posterior located, turned posteriorly. Height 32% of length. Sculptured by ca. 20 strong radial cords, with interspaces regularly filled by commarginal sculpture as transverse scales.
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</paragraph>
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</subSubSection>
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<subSubSection id="2F9C65611B74C41BFF08BADEFBF7EE08" pageId="18" pageNumber="455" type="description">
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<paragraph id="673936EA1B74C41BFF08BADEFCC4EE2C" blockId="18.[151,1436,1230,2011]" pageId="18" pageNumber="455">
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<emphasis id="55F2EAF81B74C41BFF08BADEFEDCECB4" bold="true" box="[199,345,1410,1435]" pageId="18" pageNumber="455">Description.</emphasis>
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Shell size ca.2.5 mm; low, limpet-like; height ca.32% of length. White, opaque. Protoconch of 1.5 rounded whorls (Fig. 139); somewhat protruding, located laterally, situated on right in posterior edge of apex (Figs 136, 139); smooth, glossy; ca. 4% of total shell size. Slit anterior, rectangular, width 16% of length; 7% of shell width, 27% of shell length; edges rather irregular (Figs 135, 137, 138). Profile highly curved ventrally, sagittal profile in arc with imaginary center located ca. 50% of shell length ventral to highest shell region (Figs 136, 139). Sculpture of strong radial cords (Figs 135, 138), ca. 20 surrounding apex; gradually increasing in strength towards aperture; interspaces half of cords’ width, filled by comarginal sculpture as transverse scales; interval between comarginal sculpture ca. 1/2 of thread’s width, ca. 20 scales along median threads. Selenizone median, marked by narrow, elevated edges (elevation equivalent to that of cords); filled by somewhat regularly distributed lunules (Figs 135, 138). Aperture slightly concave, outline elliptical, width ca.60% of length; edges undulating due to radial cords. Inner surface smooth, simple, glossy (Fig. 137).
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</paragraph>
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<paragraph id="673936EA1B74C41BFF08B852FBF7EE08" blockId="18.[151,1436,1230,2011]" box="[199,1138,1806,1831]" pageId="18" pageNumber="455">
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<emphasis id="55F2EAF81B74C41BFF08B852FE66EE08" bold="true" box="[199,483,1806,1831]" pageId="18" pageNumber="455">Measurements (in mm).</emphasis>
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<typeStatus id="B83D88481B74C41BFE24B852FDDDEE08" box="[491,600,1806,1831]" pageId="18" pageNumber="455" type="holotype">Holotype</typeStatus>
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: 2.5 by 0.8;
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<typeStatus id="B83D88481B74C41BFD2FB853FCC5EE08" box="[736,832,1807,1831]" pageId="18" pageNumber="455" type="paratype">paratype</typeStatus>
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MZSP
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<date id="1338102A1B74C41BFC57B853FC75EE08" box="[920,1008,1807,1831]" pageId="18" pageNumber="455" value="49-10-29">102949</date>
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: 2.2 by 0.8.
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</paragraph>
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</subSubSection>
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<subSubSection id="2F9C65611B74C41BFF08B86EFC79EE40" pageId="18" pageNumber="455" type="distribution">
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<paragraph id="673936EA1B74C41BFF08B86EFD4DEE64" blockId="18.[151,1436,1230,2011]" box="[199,712,1842,1867]" pageId="18" pageNumber="455">
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<emphasis id="55F2EAF81B74C41BFF08B86EFEE5EE64" bold="true" box="[199,352,1842,1867]" pageId="18" pageNumber="455">Distribution.</emphasis>
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Only known from
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<typeStatus id="B83D88481B74C41BFDF8B86FFDE2EE64" box="[567,615,1843,1867]" pageId="18" pageNumber="455">type</typeStatus>
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locality.
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</paragraph>
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<paragraph id="673936EA1B74C41BFF08B80AFC79EE40" blockId="18.[151,1436,1230,2011]" box="[199,1020,1878,1903]" pageId="18" pageNumber="455">
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<emphasis id="55F2EAF81B74C41BFF08B80AFEAFEE40" bold="true" box="[199,298,1878,1903]" pageId="18" pageNumber="455">Habitat.</emphasis>
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<quantity id="A07E9B0F1B74C41BFEFEB80BFE16EE41" box="[305,403,1879,1903]" metricMagnitude="1" metricUnit="m" metricValue="1.1" metricValueMax="1.2" metricValueMin="1.0" pageId="18" pageNumber="455" unit="m" value="11.0" valueMax="12.0" valueMin="10.0">10–12 m</quantity>
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depth (no indication about substrate; dead specimens).
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</paragraph>
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</subSubSection>
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<subSubSection id="2F9C65611B74C41BFF08B826FD87EEBC" box="[199,514,1914,1939]" pageId="18" pageNumber="455" type="materials_examined">
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<paragraph id="673936EA1B74C41BFF08B826FD87EEBC" blockId="18.[151,1436,1230,2011]" box="[199,514,1914,1939]" pageId="18" pageNumber="455">
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<emphasis id="55F2EAF81B74C41BFF08B826FE2CEEBC" bold="true" box="[199,425,1914,1939]" pageId="18" pageNumber="455">Material examined</emphasis>
|
||
:
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<typeStatus id="B83D88481B74C41BFE77B827FE7AEEBC" box="[440,511,1915,1939]" pageId="18" pageNumber="455">Types</typeStatus>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="2F9C65611B74C41BFF08B8C2FB56EEF4" pageId="18" pageNumber="455" type="etymology">
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<paragraph id="673936EA1B74C41BFF08B8C2FB56EEF4" blockId="18.[151,1436,1230,2011]" pageId="18" pageNumber="455">
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<emphasis id="55F2EAF81B74C41BFF08B8C2FECBEE98" bold="true" box="[199,334,1950,1975]" pageId="18" pageNumber="455">Etymology.</emphasis>
|
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The specific epithet is derived from the Greek
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<emphasis id="55F2EAF81B74C41BFC4EB8C2FC47EE99" box="[897,962,1950,1974]" italics="true" pageId="18" pageNumber="455">eikosi</emphasis>
|
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(or
|
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<emphasis id="55F2EAF81B74C41BFC36B8C3FBABEE99" box="[1017,1070,1951,1974]" italics="true" pageId="18" pageNumber="455">icosi</emphasis>
|
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), meaning twenty, and
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<emphasis id="55F2EAF81B74C41BFA8BB8C2FA10EE99" box="[1348,1429,1950,1974]" italics="true" pageId="18" pageNumber="455">sculpta</emphasis>
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, meaning sculpture, an allusion to the outer surface of shell sculptured by about 20 radial threads.
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</paragraph>
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</subSubSection>
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<subSubSection id="2F9C65611B75C41AFF08BFCBFD36E8DA" pageId="19" pageNumber="456" type="discussion">
|
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<paragraph id="673936EA1B75C41AFF08BFCBFD36E8DA" blockId="19.[151,1436,151,1112]" pageId="19" pageNumber="456">
|
||
<emphasis id="55F2EAF81B75C41AFF08BFCBFEBEE99F" bold="true" box="[199,315,151,176]" pageId="19" pageNumber="456">Remarks.</emphasis>
|
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<taxonomicName id="A0864D691B75C41AFE8BBFC4FDA0E980" box="[324,549,152,176]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="suspira">
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<emphasis id="55F2EAF81B75C41AFE8BBFC4FDA0E980" box="[324,549,152,176]" italics="true" pageId="19" pageNumber="456">Emarginula suspira</emphasis>
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</taxonomicName>
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is similar to a set of species occurring in north Atlantic and Eastern Pacific deepwaters such as
|
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<taxonomicName id="A0864D691B75C41AFEBDBFE0FC51E9FB" authority="Libassi, 1859 (Farfante 1947)" authorityName="Libassi, 1859 (Farfante" authorityYear="1947" box="[370,980,188,213]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="tuberculosa">
|
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<emphasis id="55F2EAF81B75C41AFEBDBFE0FD05E9FB" box="[370,640,188,212]" italics="true" pageId="19" pageNumber="456">Emarginula tuberculosa</emphasis>
|
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<bibRefCitation id="03174B1B1B75C41AFD49BFE0FC98E9FA" author="Libassi" box="[646,797,188,213]" pageId="19" pageNumber="456" refString="Libassi, I. (1859) Sopra alcune conchiglie fossile dei intorni de Palermo. Reale Academia di Scienze, Lettere i Belle Arti di Palermo, Atti (n. s.), 3, 1 - 47." type="journal article" year="1859">Libassi, 1859</bibRefCitation>
|
||
(
|
||
<bibRefCitation id="03174B1B1B75C41AFCE5BFE0FC4EE9FB" author="Farfante" box="[810,971,188,213]" pageId="19" pageNumber="456" refString="Farfante, I. P. (1947) The genera Zeidora, Nesta, Emarginula, Rimula and Puncturella in the Western Atlantic. Johnsonia, 2, 93 - 148." type="journal article" year="1947">Farfante 1947</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
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,
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<taxonomicName id="A0864D691B75C41AFC10BFE0FB46E9FB" box="[991,1219,188,212]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="angusta">
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<emphasis id="55F2EAF81B75C41AFC10BFE0FB46E9FB" box="[991,1219,188,212]" italics="true" pageId="19" pageNumber="456">Emarginula angusta</emphasis>
|
||
</taxonomicName>
|
||
and
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<taxonomicName id="A0864D691B75C41AFB37BFE1FADEE9FB" box="[1272,1371,188,212]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="dictya">
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<emphasis id="55F2EAF81B75C41AFB37BFE1FADEE9FB" box="[1272,1371,188,212]" italics="true" pageId="19" pageNumber="456">E. dictya</emphasis>
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||
</taxonomicName>
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(both
|
||
<bibRefCitation id="03174B1B1B75C41AFF58BFBCFEBBE9D7" author="McLean" box="[151,318,224,248]" pageId="19" pageNumber="456" refString="McLean, J. H. (1970) Descriptions of a new genus and eight new species of Eastern Pacific Fissurellidae, with notes on other species. The Veliger, 12, 362 - 367." type="journal article" year="1970">McLean, 1970</bibRefCitation>
|
||
: Figs 14–17). It differs in having a lower shell with a higher number and more closely spaced radial ribs.
|
||
<taxonomicName id="A0864D691B75C41AFF00BE58FE28E833" box="[207,429,260,284]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="suspira">
|
||
<emphasis id="55F2EAF81B75C41AFF00BE58FE28E833" box="[207,429,260,284]" italics="true" pageId="19" pageNumber="456">Emarginula suspira</emphasis>
|
||
</taxonomicName>
|
||
differs from
|
||
<taxonomicName id="A0864D691B75C41AFD8CBE59FC67E833" authority="Farfante 1947" authorityName="Farfante" authorityYear="1947" box="[579,994,260,285]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="tuberculosa">
|
||
<emphasis id="55F2EAF81B75C41AFD8CBE59FD63E833" box="[579,742,260,284]" italics="true" pageId="19" pageNumber="456">E. tuberculosa</emphasis>
|
||
(
|
||
<emphasis id="55F2EAF81B75C41AFD39BE59FCB1E833" box="[758,820,261,284]" italics="true" pageId="19" pageNumber="456">sensu</emphasis>
|
||
<bibRefCitation id="03174B1B1B75C41AFCF3BE58FC5FE833" author="Farfante" box="[828,986,260,285]" pageId="19" pageNumber="456" refString="Farfante, I. P. (1947) The genera Zeidora, Nesta, Emarginula, Rimula and Puncturella in the Western Atlantic. Johnsonia, 2, 93 - 148." type="journal article" year="1947">Farfante 1947</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
mainly in having a low posterior beak, placed close to the apertural plane (Figs 94, 97); additionally,
|
||
<taxonomicName id="A0864D691B75C41AFC9ABE75FC4DE810" box="[853,968,296,320]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="suspira">
|
||
<emphasis id="55F2EAF81B75C41AFC9ABE75FC4DE810" box="[853,968,296,320]" italics="true" pageId="19" pageNumber="456">E. suspira</emphasis>
|
||
</taxonomicName>
|
||
has a stronger sculpture, which produces elevated nodes at the intersection of the concentric and radial ribs; the shell apex is low at the posterior margin of the shell, while it protrudes posteriorly in
|
||
<taxonomicName id="A0864D691B75C41AFD4EBE2DFCA6E8A7" box="[641,803,368,392]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="tuberculata">
|
||
<emphasis id="55F2EAF81B75C41AFD4EBE2DFCA6E8A7" box="[641,803,368,392]" italics="true" pageId="19" pageNumber="456">E. tuberculata</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName id="A0864D691B75C41AFCFBBE2CFB90E8A8" box="[820,1045,368,392]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="suspira">
|
||
<emphasis id="55F2EAF81B75C41AFCFBBE2CFB90E8A8" box="[820,1045,368,392]" italics="true" pageId="19" pageNumber="456">Emarginula suspira</emphasis>
|
||
</taxonomicName>
|
||
differ from
|
||
<taxonomicName id="A0864D691B75C41AFB68BE2DFA1DE8A7" authority="Gray, 1825" authorityName="Gray" authorityYear="1825" box="[1191,1432,367,392]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="sicula">
|
||
<emphasis id="55F2EAF81B75C41AFB68BE2DFA89E8A7" box="[1191,1292,368,392]" italics="true" pageId="19" pageNumber="456">E. sicula</emphasis>
|
||
<bibRefCitation id="03174B1B1B75C41AFAD9BE2CFA1DE8A7" author="Gray" box="[1302,1432,367,392]" pageId="19" pageNumber="456" refString="Gray, J. E. (1825) A list and description of some species of shells not taken notice of by Lamarck. Annals of Philosophy, 25 (n. s. 9), 134 - 140." type="journal article" year="1825">Gray, 1825</bibRefCitation>
|
||
</taxonomicName>
|
||
, from the Mediterranean and from
|
||
<taxonomicName id="A0864D691B75C41AFDD5BEC9FCB0E883" authority="Sowerby, 1812" authorityName="Sowerby" authorityYear="1812" box="[538,821,404,429]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="crassa">
|
||
<emphasis id="55F2EAF81B75C41AFDD5BEC9FD00E883" box="[538,645,405,428]" italics="true" pageId="19" pageNumber="456">E. crassa</emphasis>
|
||
<bibRefCitation id="03174B1B1B75C41AFD43BEC8FCB0E883" author="Sowerby" box="[652,821,404,429]" pageId="19" pageNumber="456" refString="Sowerby, G. B. I. (1812 - 1846) The mineral conchology of Great Britain; or coloured figures and descriptions of those reamains of testaceous animals or shells, which have been preserved at various times and depth in the earth. Vols. 1. - 7. London, 234 pp., 251 pp., 194 pp., 160 pp., 168 pp., 250. & 123 pp. + pls 610 - 648." type="book chapter" year="1812">Sowerby, 1812</bibRefCitation>
|
||
</taxonomicName>
|
||
from the north Atlantic, by the stronger sculpture and by the wider and longer slit. The beak close to the ventral plane of the aperture also distinguishes
|
||
<taxonomicName id="A0864D691B75C41AFB24BEE5FADBE8E0" box="[1259,1374,440,464]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="suspira">
|
||
<emphasis id="55F2EAF81B75C41AFB24BEE5FADBE8E0" box="[1259,1374,440,464]" italics="true" pageId="19" pageNumber="456">E. suspira</emphasis>
|
||
</taxonomicName>
|
||
from
|
||
<taxonomicName id="A0864D691B75C41AFF58BE81FE27E8DB" authority="Dall, 1927" authorityName="Dall" authorityYear="1927" box="[151,418,476,501]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="phrixodes">
|
||
<emphasis id="55F2EAF81B75C41AFF58BE81FEA1E8DB" box="[151,292,476,500]" italics="true" pageId="19" pageNumber="456">E. phrixodes</emphasis>
|
||
<bibRefCitation id="03174B1B1B75C41AFEE4BE80FE27E8DB" author="Dall" box="[299,418,476,501]" pageId="19" pageNumber="456" refString="Dall, W. H. (1927) Small shells from dredgings off the southeast coast of the United States by the United States Fisheries Steamer ' Albatross' in 1885 and 1886. Proceedings of the United States National Museum, 70, 1 - 134. http: // dx. doi. org / 10.5479 / si. 00963801.70 - 2667.1" type="journal article" year="1927">Dall, 1927</bibRefCitation>
|
||
</taxonomicName>
|
||
from the north Atlantic.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="2F9C65611B75C41AFF08BD5CFE73ED77" pageId="19" pageNumber="456" type="reference_group">
|
||
<paragraph id="673936EA1B75C41AFF08BD5CFBF3EBC0" blockId="19.[151,1436,151,1112]" pageId="19" pageNumber="456">
|
||
<taxonomicName id="A0864D691B75C41AFF08BD5CFE23EB38" ID-CoL="39FD9" box="[199,422,512,536]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="suspira">
|
||
<emphasis id="55F2EAF81B75C41AFF08BD5CFE23EB38" box="[199,422,512,536]" italics="true" pageId="19" pageNumber="456">Emarginula suspira</emphasis>
|
||
</taxonomicName>
|
||
has been previously misidentified as
|
||
<taxonomicName id="A0864D691B75C41AFC85BD5CFBDCEB37" ID-CoL="39FDM" box="[842,1113,512,536]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="tuberculosa">
|
||
<emphasis id="55F2EAF81B75C41AFC85BD5CFBDCEB37" box="[842,1113,512,536]" italics="true" pageId="19" pageNumber="456">Emarginula tuberculosa</emphasis>
|
||
</taxonomicName>
|
||
(see synonymy above). This species was described for Miocene fossils from Altavilla and Ficarazzi, Palermo,
|
||
<collectingCountry id="1F91767A1B75C41AFBEBBD78FBDDEB12" box="[1060,1112,548,573]" name="Italy" pageId="19" pageNumber="456">Italy</collectingCountry>
|
||
(
|
||
<bibRefCitation id="03174B1B1B75C41AFBA9BD78FB7EEB12" author="Libassi" box="[1126,1275,548,573]" pageId="19" pageNumber="456" refString="Libassi, I. (1859) Sopra alcune conchiglie fossile dei intorni de Palermo. Reale Academia di Scienze, Lettere i Belle Arti di Palermo, Atti (n. s.), 3, 1 - 47." type="journal article" year="1859">Libassi 1859</bibRefCitation>
|
||
). This fact has not been noted by earlier authors (e.g.,
|
||
<bibRefCitation id="03174B1B1B75C41AFDAFBD1BFC87EB4F" author="Farfante" box="[608,770,583,608]" pageId="19" pageNumber="456" refString="Farfante, I. P. (1947) The genera Zeidora, Nesta, Emarginula, Rimula and Puncturella in the Western Atlantic. Johnsonia, 2, 93 - 148." type="journal article" year="1947">Farfante 1947</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="03174B1B1B75C41AFCDFBD1BFC02EB4F" author="Leal" box="[784,903,583,608]" pageId="19" pageNumber="456" refString="Leal, J. H. (1991) Marine Prosobranch Gastropods from Oceanic Islands off Brazil. Universal Book Services. Dr. W. Backhuys. Oegstgeest, 419 pp." type="book" year="1991">Leal 1991</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="03174B1B1B75C41AFC5ABD1BFB8BEB4F" author="Rios" box="[917,1038,583,608]" pageId="19" pageNumber="456" refString="Rios, E. C. (2009) Compendium of Brazilian Sea Shells. Universidade Federal do Rio Grande. Rio Grande, 668 pp." type="book" year="2009">Rios 2009</bibRefCitation>
|
||
), indicating a Miocene fossil from Mediterranean living presently along the coast of the Western Atlantic; this remarkable temporal and geographical distribution has not been discussed. On the other hand, the broad geographic range and the regional variation of the specimens have been interpreted as indicative of multiple species (
|
||
<bibRefCitation id="03174B1B1B75C41AFC42BDE8FBB4EBE3" author="Leal" box="[909,1073,692,717]" pageId="19" pageNumber="456" refString="Leal, J. H. (1991) Marine Prosobranch Gastropods from Oceanic Islands off Brazil. Universal Book Services. Dr. W. Backhuys. Oegstgeest, 419 pp." type="book" year="1991">Leal 1991: 41</bibRefCitation>
|
||
). The
|
||
<taxonomicName id="A0864D691B75C41AFBB5BDE8FB7AEBE3" ID-CoL="7NYMG" box="[1146,1279,692,716]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="genus">
|
||
<emphasis id="55F2EAF81B75C41AFBB5BDE8FB7AEBE3" box="[1146,1279,692,716]" italics="true" pageId="19" pageNumber="456">Emarginula</emphasis>
|
||
</taxonomicName>
|
||
sp. 2 by
|
||
<bibRefCitation id="03174B1B1B75C41AFAA5BDE8FE8BEBDF" author="Leal" pageId="19" pageNumber="456" refString="Leal, J. H. (1991) Marine Prosobranch Gastropods from Oceanic Islands off Brazil. Universal Book Services. Dr. W. Backhuys. Oegstgeest, 419 pp." type="book" year="1991">Leal (1991: 42)</bibRefCitation>
|
||
, from Atol das Rocas and Fernando de Noronha, may also refer to
|
||
<taxonomicName id="A0864D691B75C41AFC32BD85FBEAEBC0" ID-CoL="39FD9" box="[1021,1135,728,752]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="suspira">
|
||
<emphasis id="55F2EAF81B75C41AFC32BD85FBEAEBC0" box="[1021,1135,728,752]" italics="true" pageId="19" pageNumber="456">E. suspira</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="673936EA1B75C41AFF08BDA0FEE6EAC3" blockId="19.[151,1436,151,1112]" pageId="19" pageNumber="456">
|
||
<taxonomicName id="A0864D691B75C41AFF08BDA0FE22EA3B" ID-CoL="39FD9" box="[199,423,764,788]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="suspira">
|
||
<emphasis id="55F2EAF81B75C41AFF08BDA0FE22EA3B" box="[199,423,764,788]" italics="true" pageId="19" pageNumber="456">Emarginula suspira</emphasis>
|
||
</taxonomicName>
|
||
varies considerably as discussed above (Figs 93–99). Larger specimens tend to be more rounded at the edge (Fig. 93), while the younger specimens tend to have more triangular outline in dorsal view (Figs 90, 96). The smaller specimens have a more widely spaced sculpture; elongated transverse pits can be seen in the concavity formed by reticulated sculpture (Fig. 99) produced only by the periostracum. The flattened posterior shell lip, with the beak approaching it, is one of the main characters of
|
||
<taxonomicName id="A0864D691B75C41AFC1CBCD1FBC3EA8B" ID-CoL="39FD9" box="[979,1094,909,932]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="suspira">
|
||
<emphasis id="55F2EAF81B75C41AFC1CBCD1FBC3EA8B" box="[979,1094,909,932]" italics="true" pageId="19" pageNumber="456">E. suspira</emphasis>
|
||
</taxonomicName>
|
||
, distinguishing it from the
|
||
<taxonomicName id="A0864D691B75C41AFA4BBCD1FE9FEAE7" ID-CoL="39FDM" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="tuberculosa">
|
||
<emphasis id="55F2EAF81B75C41AFA4BBCD1FE9FEAE7" italics="true" pageId="19" pageNumber="456">E. tuberculosa</emphasis>
|
||
</taxonomicName>
|
||
group. The posterior end of the aperture is generally convex (Fig. 95), but in rare specimens it can be concave (Fig. 98).
|
||
</paragraph>
|
||
<paragraph id="673936EA1B75C41AFF08BCA4FE73ED77" blockId="19.[151,1436,151,1112]" pageId="19" pageNumber="456">
|
||
<taxonomicName id="A0864D691B75C41AFF08BCA4FE5FED3F" ID-CoL="6F7D4" box="[199,474,1016,1040]" class="Gastropoda" family="Fissurellidae" genus="Emarginula" higherTaxonomySource="CoL" kingdom="Animalia" order="Lepetellida" pageId="19" pageNumber="456" phylum="Mollusca" rank="species" species="icosisculpta">
|
||
<emphasis id="55F2EAF81B75C41AFF08BCA4FE5FED3F" box="[199,474,1016,1040]" italics="true" pageId="19" pageNumber="456">Emarginula icosisculpta</emphasis>
|
||
</taxonomicName>
|
||
cannot be confused with any other Atlantic species. Its well-curved low profile and the posteriorly positioned beak are unique characters. The strong radial sculpture, possessing few cords, is an additional distinctive character.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |