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<document id="9BB9F4EB4D9019D3F6466366722DB1E5" ID-CLB-Dataset="20352" ID-DOI="10.5252/zoosystema2022v44a5" ID-GBIF-Dataset="f02ac81c-8e1e-4400-bc7e-93cc39e8ad63" ID-ISSN="1638-9387" ID-Zenodo-Dep="6335678" ID-ZooBank="urn:lsid:zoobank.org:pub:DCD9295D-1CB3-4192-9144-F54180C9815D" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1646680301994" checkinUser="felipe" docAuthor="Jardim, Jaime A., De Almeida, Sergio M. &amp; De Simone, Luiz R. L." docDate="2022" docId="CA7D87C4FFF54B1AFC1F54B061D0F7A2" docLanguage="en" docName="Zoosystema.44.5.151-157.pdf" docOrigin="Zoosystema 44 (5)" docStyle="DocumentStyle:5CC576F744449C1860B4E72ABD884631.7:Zoosystema.2020-.journal_article" docStyleId="5CC576F744449C1860B4E72ABD884631" docStyleName="Zoosystema.2020-.journal_article" docStyleVersion="7" docTitle="Acanthochitona oxum Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone 2022, n. sp." docType="treatment" docUuid="BE4BAD45-E28B-4603-B7BA-09FDAD4F6956" docUuidSource="ZooBank" docVersion="8" lastPageNumber="156" masterDocId="3644FFBCFFF34B1DFFC85142626AF049" masterDocTitle="Taxonomic study on the Polyplacophora (Chitonida: Ischnochitonidae et Acanthochitonidae) collected by the Marion Dufresne (MD 55) expedition, with description of a new species" masterLastPageNumber="157" masterPageNumber="151" pageNumber="155" updateTime="1699317362344" updateUser="ExternalLinkService" zenodo-license-document="CC0-1.0" zenodo-license-figures="CC0-1.0" zenodo-license-treatments="UNSPECIFIED">
<mods:mods id="3B6E508356C2591AFA0F1B2DE70EEEA0" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="82C76F4FCD8595DE3901860049D01698">
<mods:title id="BF7AF793ED15C0AE13872F42B9B017AA">Taxonomic study on the Polyplacophora (Chitonida: Ischnochitonidae et Acanthochitonidae) collected by the Marion Dufresne (MD 55) expedition, with description of a new species</mods:title>
</mods:titleInfo>
<mods:name id="3E3499447EC54E7AA43ACA3B97D4AF35" type="personal">
<mods:role id="6C1723D184D6714CCE8CB2EE658630A1">
<mods:roleTerm id="379819AF119D5D9ACEF5875CE512382A">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="9D95DC34FA98895E0386C35953DE9FB9">Jardim, Jaime A.</mods:namePart>
<mods:affiliation id="659283B3B7348D4FDE069686F8C63AD7">Museu de Zoologia da Universidade de São Paulo MZSP, Avenida Nazaré, 481, CEP 04218 - 970, São Paulo, SP (Brazil)</mods:affiliation>
<mods:nameIdentifier id="AE6858D7236633FE32F8E114EDE3B5FD" type="email">jaime@gmail.com</mods:nameIdentifier>
</mods:name>
<mods:name id="12E9ADB40E574DAB63286158012B74DB" type="personal">
<mods:role id="DC38860A75CB12FF2FABA167C3A57250">
<mods:roleTerm id="EDD317B30EFF3C29626D212B6321F41E">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="D59BAD37461E74E5D7AE8EB9B69C5BB5">De Almeida, Sergio M.</mods:namePart>
<mods:affiliation id="B056DDFD2D9F817DDF179BD9F9D47C84">Universidade Católica de Pernambuco, Escola de Saúde e Ciências da Vida, Curso de Ciências Biológicas, Museu de Arqueologia e Ciências Naturias, Programa de Pós-Gradduação em Desenvolvimento de Processos Ambientais, Rua do Príncipe, 526, CEP 50050 - 900, Recife, PE (Brazil)</mods:affiliation>
</mods:name>
<mods:name id="616A609BEF123BD15D4324FD10AFA7B9" type="personal">
<mods:role id="F2DBF52F2F3D8ADB90DBEB1FCF6A0C5B">
<mods:roleTerm id="D0C506D47F8D9A63E0B31742B0C7221F">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="F9DBAC8B6740E3B2A27C1B9197AD947B">De Simone, Luiz R. L.</mods:namePart>
<mods:affiliation id="2CAFA33EC6BE0B915BF94B4FB5DD8AB8">Museu de Zoologia da Universidade de São Paulo MZSP, Avenida Nazaré, 481, CEP 04218 - 970, São Paulo, SP (Brazil)</mods:affiliation>
</mods:name>
<mods:typeOfResource id="8FB4B3A3581134DC9AD1B01F75C6391E">text</mods:typeOfResource>
<mods:relatedItem id="5058B82DD77A2A6F215F385251905E72" type="host">
<mods:titleInfo id="3B9E2059EF77AE42D1305737D5EDB061">
<mods:title id="61075FF25BDD4EED6DF795ADAB3F4097">Zoosystema</mods:title>
</mods:titleInfo>
<mods:part id="66CC322FD7BA5FF30E3B5E6E64299389">
<mods:date id="54A5F9B852301486D0FB86C8FCA5794A">2022</mods:date>
<mods:detail id="40A8CFF4968847AC3A0FB1C86911B7EB" type="pubDate">
<mods:number id="77F507380C102FE9690DB10450FE3E2B">2022-03-03</mods:number>
</mods:detail>
<mods:detail id="733CFCB672A317DE38DC738D158BE495" type="volume">
<mods:number id="2561183988D9388E3862E8B88FA9BA3A">44</mods:number>
</mods:detail>
<mods:detail id="F8B1C118594BFD1C56DA79B8869579A8" type="issue">
<mods:number id="1D7DE0EE845B4B4810CB624DBB5509E4">5</mods:number>
</mods:detail>
<mods:extent id="A30745F33C76E702E4AB3DF48A14DE60" unit="page">
<mods:start id="3220D81ED2C8AAC3D8A594638EAAA04F">151</mods:start>
<mods:end id="26DA1D4BA2C21995E5180D336D9FCAD4">157</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification id="3528FA28E2F5C2FA29AC3810DF7FCAD1">journal article</mods:classification>
<mods:identifier id="BA5EF69B62300C0EED3783D06055C270" type="CLB-Dataset">20352</mods:identifier>
<mods:identifier id="5BDF8DD87FCF34A08AB01434718E479F" type="DOI">10.5252/zoosystema2022v44a5</mods:identifier>
<mods:identifier id="99723B73BEA8DA1E97F6A35230B45418" type="GBIF-Dataset">f02ac81c-8e1e-4400-bc7e-93cc39e8ad63</mods:identifier>
<mods:identifier id="8805080C2A1FCD81C53280DB21AC24AF" type="ISSN">1638-9387</mods:identifier>
<mods:identifier id="FFDF516D6532CCA92E060EB86F74F505" type="Zenodo-Dep">6335678</mods:identifier>
<mods:identifier id="27816B36A38F92CD17E3CFBA92895BD0" type="ZooBank">urn:lsid:zoobank.org:pub:DCD9295D-1CB3-4192-9144-F54180C9815D</mods:identifier>
</mods:mods>
<treatment id="CA7D87C4FFF54B1AFC1F54B061D0F7A2" ID-DOI="http://doi.org/10.5281/zenodo.6335933" ID-GBIF-Taxon="193889100" ID-Zenodo-Dep="6335933" LSID="urn:lsid:zoobank.org:act:BE4BAD45-E28B-4603-B7BA-09FDAD4F6956" httpUri="http://treatment.plazi.org/id/CA7D87C4FFF54B1AFC1F54B061D0F7A2" lastPageId="7" lastPageNumber="156" pageId="6" pageNumber="155">
<subSubSection id="0ACE6559FFF54B1BFC1F54B0676CF644" box="[983,1286,1522,1549]" pageId="6" pageNumber="155" type="nomenclature">
<paragraph id="426B36D2FFF54B1BFC1F54B0676CF644" blockId="6.[983,1286,1522,1581]" box="[983,1286,1522,1549]" pageId="6" pageNumber="155">
<heading id="192381BEFFF54B1BFC1F54B0676CF644" box="[983,1286,1522,1549]" centered="true" fontSize="11" level="2" pageId="6" pageNumber="155" reason="2">
<taxonomicName id="85D44D51FFF54B1BFC1F54B066AEF644" ID-CoL="8YKYB" authority="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone, 2022" authorityName="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone" authorityYear="2022" box="[983,1220,1522,1549]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="6" pageNumber="155" phylum="Mollusca" rank="species" species="oxum" status="sp. nov.">
<emphasis id="70A0EAC0FFF54B1BFC1F54B066AEF644" bold="true" box="[983,1220,1522,1549]" italics="true" pageId="6" pageNumber="155">Acanthochitona oxum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="6B9357BBFFF54B1BFB0354B1676CF644" box="[1227,1286,1523,1549]" pageId="6" pageNumber="155" rank="species">n. sp.</taxonomicNameLabel>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="0ACE6559FFF54B1BFBFC575067F2F628" pageId="6" pageNumber="155" type="description">
<paragraph id="426B36D2FFF54B1BFBFC575066CDF664" blockId="6.[983,1286,1522,1581]" box="[1076,1191,1554,1581]" pageId="6" pageNumber="155">
(
<figureCitation id="DAEF2A57FFF54B1BFBF4575066CBF664" box="[1084,1185,1554,1581]" captionStart="FIG" captionStartId="6.[132,143,1149,1167]" captionTargetBox="[136,1451,216,1102]" captionTargetId="figure-427@6.[136,1452,216,1102]" captionTargetPageId="6" captionText="FIG. 2. — Acanthochitona oxum n. sp.; dorsal view; A, valve i; B, valve v; C, valve viii; D, E: details of the valve v,showing pustules with aesthetes (D) and detail of a pustule (E); F, details of the perinotum;G‒H: detail of the radula, radula, panoramic (G) and dorsal (H) views;I, details of the hyponotum. Scale bars: A-C,100 μm; D, I, 20 μm; E, 3 μm; F, 100 μm; G, 30 μm; H, 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6335682" httpUri="https://zenodo.org/record/6335682/files/figure.png" pageId="6" pageNumber="155">Fig. 2A-I</figureCitation>
)
</paragraph>
<paragraph id="426B36D2FFF54B1BFC8B570D67F2F628" blockId="6.[835,1432,1615,1633]" box="[835,1432,1615,1633]" pageId="6" pageNumber="155">
<uri id="36453AD0FFF54B1BFC8B570D67F2F628" box="[835,1432,1615,1633]" pageId="6" pageNumber="155">
urn:lsid:zoobank.org:pub:
<uuid id="36720C07FFF54B1BFBD8570D67F2F628" box="[1040,1432,1615,1633]" pageId="6" pageNumber="155">DCD9295D-1CB3-4192-9144-F54180C9815D</uuid>
</uri>
</paragraph>
</subSubSection>
<subSubSection id="0ACE6559FFF54B1BFCE557C96612F7F9" pageId="6" pageNumber="155" type="materials_examined">
<paragraph id="426B36D2FFF54B1BFCE557C9663BF691" blockId="6.[812,1456,1675,1752]" pageId="6" pageNumber="155">
<collectionCode id="24C5AE17FFF54B1BFCE557C961AAF6EB" box="[813,960,1675,1698]" pageId="6" pageNumber="155">TYPE MATERIAL</collectionCode>
. —
<materialsCitation id="F2BC3C8FFFF54B1BFC2457C9663BF691" ID-GBIF-Occurrence="3698208311" collectingDate="1987-06-01" collectionCode="MZSP" collectorName="Bouchet &amp; Leal &amp; Metivier" country="Brazil" location="Brazil" pageId="6" pageNumber="155" specimenCode="MZSP 112459" specimenCount="1" typeStatus="holotype">
<emphasis id="70A0EAC0FFF54B1BFC2457C966F8F6ED" bold="true" box="[1004,1170,1675,1700]" pageId="6" pageNumber="155">
<typeStatus id="9D6F8870FFF54B1BFC2457C96621F6EA" box="[1004,1099,1675,1699]" pageId="6" pageNumber="155" type="holotype">Holotype</typeStatus>
.
<collectingCountry id="3AC37642FFF54B1BFB9057CE66F8F6ED" box="[1112,1170,1676,1700]" name="Brazil" pageId="6" pageNumber="155">Brazil</collectingCountry>
</emphasis>
•
<specimenCount id="54D2FD5BFFF54B1BFB6057C96773F6EA" box="[1192,1305,1675,1699]" pageId="6" pageNumber="155" type="generic">1 specimen</specimenCount>
, 2.3 ×
<quantity id="852C9B37FFF54B1BFA9357C967C1F6EB" box="[1371,1451,1675,1699]" metricMagnitude="-3" metricUnit="m" metricValue="1.6" pageId="6" pageNumber="155" unit="mm" value="1.6">1.6 mm</quantity>
; dry specimen;
<date id="366A1012FFF54B1BFC0A57E46646F6F7" box="[962,1068,1702,1726]" pageId="6" pageNumber="155" value="1987-06-01">
<collectingDate id="262EE9FAFFF54B1BFC0A57E46646F6F7" box="[962,1068,1702,1726]" pageId="6" pageNumber="155" value="1987-06-01">1.VI.1987</collectingDate>
</date>
; MD55, sta. DC83,
<collectorName id="EF215304FFF54B1BFACE57E76736F6F4" box="[1286,1372,1701,1725]" pageId="6" pageNumber="155">Bouchet</collectorName>
,
<collectorName id="EF215304FFF54B1BFAA157E767F8F6F4" box="[1385,1426,1701,1725]" pageId="6" pageNumber="155">Leal</collectorName>
&amp;
<collectorName id="EF215304FFF54B1BFCE6578261EBF691" box="[814,897,1728,1752]" pageId="6" pageNumber="155">Métivier</collectorName>
leg.;
<specimenCode id="12729EA9FFF54B1BFC7E57826627F691" box="[950,1101,1728,1752]" collectionCode="MZSP" country="Brazil" httpUri="http://grbio.org/cool/9yp6-zxp9" name="Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo" pageId="6" pageNumber="155" type="Museum">MZSP 112459</specimenCode>
.
</materialsCitation>
</paragraph>
<paragraph id="426B36D2FFF54B1BFCE557BA6750F716" blockId="6.[811,1456,1783,1887]" pageId="6" pageNumber="155">
<collectionCode id="24C5AE17FFF54B1BFCE557BA6656F747" box="[813,1084,1784,1808]" pageId="6" pageNumber="155">OTHER MATERIAL EXAMINED</collectionCode>
. —
<materialsCitation id="F2BC3C8FFFF54B1BFBAC57BA611CF70D" ID-GBIF-Occurrence="3698208320" collectionCode="OTHER, MATERIAL, EXAMINED" country="Brazil" latitude="-20.515444" location="Brazil" longLatPrecision="1" longitude="-29.339361" pageId="6" pageNumber="155" specimenCode="MZSP 134390" specimenCount="1" stateProvince="Espirito Santo">
<emphasis id="70A0EAC0FFF54B1BFBAC57BA66F4F759" bold="true" box="[1124,1182,1784,1808]" pageId="6" pageNumber="155">
<collectingCountry id="3AC37642FFF54B1BFBAC57BA66F4F759" box="[1124,1182,1784,1808]" name="Brazil" pageId="6" pageNumber="155">Brazil</collectingCountry>
</emphasis>
•
<specimenCount id="54D2FD5BFFF54B1BFB7957B5674AF746" box="[1201,1312,1783,1807]" pageId="6" pageNumber="155" type="generic">1 specimen</specimenCount>
, 1.5 ×
<quantity id="852C9B37FFF54B1BFA9557B567C1F746" box="[1373,1451,1783,1807]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="6" pageNumber="155" unit="mm" value="0.9">0.9 mm</quantity>
;
<collectingRegion id="8010F830FFF54B1BFCE3565361DBF763" box="[811,945,1809,1834]" country="Brazil" name="Espirito Santo" pageId="6" pageNumber="155">Espirito Santo</collectingRegion>
,
<location id="470B6009FFF54B1BFC7056536621F760" LSID="urn:lsid:plazi:treatment:CA7D87C4FFF54B1AFC1F54B061D0F7A2:470B6009FFF54B1BFC7056536621F760" box="[952,1099,1809,1833]" country="Brazil" latitude="-20.515444" longLatPrecision="1" longitude="-29.339361" name="Trindade Island" pageId="6" pageNumber="155" stateProvince="Espirito Santo">Trindade Island</location>
;
<geoCoordinate id="27E05015FFF54B1BFB9B565366B9F760" box="[1107,1235,1809,1833]" degrees="20" direction="south" minutes="30" orientation="latitude" pageId="6" pageNumber="155" precision="1" seconds="55.6" value="-20.515444">20°30’55.6”S</geoCoordinate>
,
<geoCoordinate id="27E05015FFF54B1BFB135650670FF763" box="[1243,1381,1810,1834]" degrees="29" direction="west" minutes="20" orientation="longitude" pageId="6" pageNumber="155" precision="1" seconds="21.7" value="-29.339361">29°20’21.7”W</geoCoordinate>
;
<specimenCode id="12729EA9FFF54B1BFAA75650611CF70D" collectionCode="MZSP" country="Brazil" httpUri="http://grbio.org/cool/9yp6-zxp9" name="Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo" pageId="6" pageNumber="155" type="Museum">MZSP 134390</specimenCode>
</materialsCitation>
•
<materialsCitation id="F2BC3C8FFFF54B1BFC40566E6750F716" ID-GBIF-Occurrence="3698208302" collectionCode="MZSP" country="Brazil" latitude="-20.515444" location="Trindade Island" longLatPrecision="1" longitude="-29.339361" pageId="6" pageNumber="155" specimenCode="MZSP 108298" specimenCount="1" stateProvince="Espirito Santo">
<specimenCount id="54D2FD5BFFF54B1BFC40566E619CF70D" box="[904,1014,1836,1860]" pageId="6" pageNumber="155" type="generic">1 specimen</specimenCount>
, disarticulated valves;
<collectingRegion id="8010F830FFF54B1BFB0D566E6725F70D" box="[1221,1359,1836,1860]" country="Brazil" name="Espirito Santo" pageId="6" pageNumber="155">Espírito Santo</collectingRegion>
,
<location id="470B6009FFF54B1BFA9E566E6103F717" LSID="urn:lsid:plazi:treatment:CA7D87C4FFF54B1AFC1F54B061D0F7A2:470B6009FFF54B1BFA9E566E6103F717" country="Brazil" latitude="-20.515444" longLatPrecision="1" longitude="-29.339361" name="Trindade Island" pageId="6" pageNumber="155" stateProvince="Espirito Santo">Trindade Island</location>
;
<geoCoordinate id="27E05015FFF54B1BFCBB56046193F717" box="[883,1017,1862,1886]" degrees="20" direction="south" minutes="30" orientation="latitude" pageId="6" pageNumber="155" precision="1" seconds="55.6" value="-20.515444">20°30’55.6”S</geoCoordinate>
,
<geoCoordinate id="27E05015FFF54B1BFBCA560566FBF716" box="[1026,1169,1863,1887]" degrees="29" direction="west" minutes="20" orientation="longitude" pageId="6" pageNumber="155" precision="1" seconds="21.7" value="-29.339361">29°20’21.7”W</geoCoordinate>
;
<specimenCode id="12729EA9FFF54B1BFB565605675FF716" box="[1182,1333,1863,1887]" collectionCode="MZSP" country="Brazil" httpUri="http://grbio.org/cool/9yp6-zxp9" name="Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo" pageId="6" pageNumber="155" type="Museum">MZSP 108298</specimenCode>
.
</materialsCitation>
</paragraph>
<paragraph id="426B36D2FFF54B1BFCE5563C6612F7F9" blockId="6.[813,1455,1917,1968]" pageId="6" pageNumber="155">
<typeStatus id="9D6F8870FFF54B1BFCE5563C6137F7DA" box="[813,861,1918,1941]" pageId="6" pageNumber="155">TYPE</typeStatus>
<collectionCode id="24C5AE17FFF54B1BFCAB56C161D4F7DD" box="[867,958,1923,1940]" pageId="6" pageNumber="155">LOCALITY</collectionCode>
. —
<emphasis id="70A0EAC0FFF54B1BFC21563D6649F7DE" bold="true" box="[1001,1059,1919,1943]" pageId="6" pageNumber="155">
<collectingCountry id="3AC37642FFF54B1BFC21563D6649F7DE" box="[1001,1059,1919,1943]" name="Brazil" pageId="6" pageNumber="155">Brazil</collectingCountry>
</emphasis>
•
<collectingRegion id="8010F830FFF54B1BFBF0563C66AEF7DF" box="[1080,1220,1918,1942]" country="Brazil" name="Espirito Santo" pageId="6" pageNumber="155">Espírito Santo</collectingRegion>
, off
<location id="470B6009FFF54B1BFB26563C6739F7DF" LSID="urn:lsid:plazi:treatment:CA7D87C4FFF54B1AFC1F54B061D0F7A2:470B6009FFF54B1BFB26563C6739F7DF" box="[1262,1363,1918,1942]" country="Brazil" latitude="-18.833334" longLatPrecision="1273" longitude="-37.95" name="Guarapari" pageId="6" pageNumber="155" stateProvince="Espirito Santo">Guarapari</location>
,
<geoCoordinate id="27E05015FFF54B1BFA94563F67C1F7DC" box="[1372,1451,1917,1941]" degrees="18" direction="south" minutes="50" orientation="latitude" pageId="6" pageNumber="155" precision="925" value="-18.833334">18°50’S</geoCoordinate>
,
<geoCoordinate id="27E05015FFF54B1BFCE556DA61E8F7F9" box="[813,898,1944,1968]" degrees="37" direction="west" minutes="57" orientation="longitude" pageId="6" pageNumber="155" precision="925" value="-37.95">37°57’W</geoCoordinate>
,
<quantity id="852C9B37FFF54B1BFC4756DA61AEF7F9" box="[911,964,1944,1968]" metricMagnitude="1" metricUnit="m" metricValue="6.0" pageId="6" pageNumber="155" unit="m" value="60.0">
<elevation id="C9F9D1E1FFF54B1BFC4756DA61AEF7F9" box="[911,964,1944,1968]" metricMagnitude="1" metricUnit="m" metricValue="6.0" pageId="6" pageNumber="155" unit="m" value="60.0">60 m</elevation>
</quantity>
, continental shelf.
</paragraph>
</subSubSection>
<subSubSection id="0ACE6559FFF54B1BFCE556926772F7AE" box="[813,1304,1999,2024]" pageId="6" pageNumber="155" type="distribution">
<paragraph id="426B36D2FFF54B1BFCE556926772F7AE" blockId="6.[813,1304,1999,2024]" box="[813,1304,1999,2024]" pageId="6" pageNumber="155">
DISTRIBUTION. — Known only from
<typeStatus id="9D6F8870FFF54B1BFB54569266ACF7A1" box="[1180,1222,2000,2024]" pageId="6" pageNumber="155">type</typeStatus>
locality.
</paragraph>
</subSubSection>
<subSubSection id="0ACE6559FFF44B1AFF4C519A6002F13A" pageId="7" pageNumber="156" type="diagnosis">
<paragraph id="426B36D2FFF44B1AFF4C519A6002F13A" blockId="7.[131,777,215,371]" pageId="7" pageNumber="156">
DIAGNOSIS. — Animal small (2.3 ×
<quantity id="852C9B37FFF44B1AFE3E51956021F0A6" box="[502,587,215,239]" metricMagnitude="-3" metricUnit="m" metricValue="1.6" pageId="7" pageNumber="156" unit="mm" value="1.6">1.6 mm</quantity>
); valves occupying about 30-40% of dorsal surface; colour of tegmentum cream to beige; slit formula 5/1/2; single megalaesthete; presence of sutural laminae; tegmental pustules round to elliptic; mucro submedian; perinotum orange with orange sutural tufts; radula with rectangular central tooth and tricuspidate major lateral tooth.
</paragraph>
</subSubSection>
<subSubSection id="0ACE6559FFF44B1AFF4C50C96162F191" pageId="7" pageNumber="156" type="etymology">
<paragraph id="426B36D2FFF44B1AFF4C50C96162F191" blockId="7.[132,776,395,472]" pageId="7" pageNumber="156">ETYMOLOGY. — The specific name Oxum, a noun in apposition, refers to the Orixá Oxum, an Afro-Brazilian Candomblé and Umbanda deity known for wearing brightly-coloured yellow clothing.</paragraph>
</subSubSection>
<subSubSection id="0ACE6559FFF44B1AFF4C50B56163F4E7" pageId="7" pageNumber="156" type="description">
<paragraph id="426B36D2FFF44B1AFF4C50B5637FF246" blockId="7.[130,777,503,1198]" box="[132,277,503,529]" pageId="7" pageNumber="156">DESCRIPTION</paragraph>
<paragraph id="426B36D2FFF44B1AFF4C53546163F4E7" blockId="7.[130,777,503,1198]" pageId="7" pageNumber="156">
Animal small (from 1.5 ×
<quantity id="852C9B37FFF44B1AFE43535463B7F278" box="[395,477,534,561]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="7" pageNumber="156" unit="mm" value="0.9">0.9 mm</quantity>
to 2.3 ×
<quantity id="852C9B37FFF44B1AFDFD535460E3F278" box="[565,649,534,561]" metricMagnitude="-3" metricUnit="m" metricValue="1.6" pageId="7" pageNumber="156" unit="mm" value="1.6">1.6 mm</quantity>
); shell moderately elevated; tegmentum cream to beige coloured with white spots; slit formula 5/1/2. Valve i elliptic, front slope convex, posterior margin nearly straight, tegmentum sculptured by tegmental pustules (about 20-25 µm long, 20 µm wide –
<figureCitation id="DAEF2A57FFF44B1AFD7A53D46168F2F9" box="[690,770,662,688]" captionStart="FIG" captionStartId="4.[132,143,1962,1980]" captionTargetBox="[132,1455,215,1878]" captionTargetId="figure-28@4.[698,1267,768,1324]" captionTargetPageId="4" captionText="FIG. 1. — A‒E, Stenoplax marcusi (Righi, 1971); A, B, lateral view; C, frontal view; D, dorsal view; E, posterior view; F-J. Acanthochitona terezae Guerra-Junior, 1983; F, G, lateral view; H, frontal view; I, dorsal view; J, posterior view; K‒O, Acanthochitona ciroi Righi, 1971; K, L, lateral view; M, frontal view; N, dorsal view; O, posterior view; P‒T, Acanthochitona oxum n. sp.; P‒Q, lateral view; R, frontal view; S, dorsal view; T, posterior view. Scale bars: 1 mm." figureDoi="http://doi.org/10.5281/zenodo.6335680" httpUri="https://zenodo.org/record/6335680/files/figure.png" pageId="7" pageNumber="156">Figs 1R</figureCitation>
;
<figureCitation id="DAEF2A57FFF44B1AFF4B53F462CFF299" box="[131,165,694,720]" captionStart="FIG" captionStartId="6.[132,143,1149,1167]" captionTargetBox="[136,1451,216,1102]" captionTargetId="figure-427@6.[136,1452,216,1102]" captionTargetPageId="6" captionText="FIG. 2. — Acanthochitona oxum n. sp.; dorsal view; A, valve i; B, valve v; C, valve viii; D, E: details of the valve v,showing pustules with aesthetes (D) and detail of a pustule (E); F, details of the perinotum;G‒H: detail of the radula, radula, panoramic (G) and dorsal (H) views;I, details of the hyponotum. Scale bars: A-C,100 μm; D, I, 20 μm; E, 3 μm; F, 100 μm; G, 30 μm; H, 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6335682" httpUri="https://zenodo.org/record/6335682/files/figure.png" pageId="7" pageNumber="156">2A</figureCitation>
), tegmental pustules presenting megalaesthetes in central portion and micraesthetes on anterior portion of tegmental pustules. Valves ii-vii with convex front margin; hind margin concave near apex becoming straight on outer ends; beaked; pleurolateral areas with identical tegmental pustules to valve i; jugal area wide and smooth; jugal sinus varies from straight to slightly convex; apophysis triangular; insertion plates slightly convex. Valve viii triangular, mucro submedian; pleurolateral and jugal areas like intermediate valves on antemucronal area; postmucronal area concave, becoming straight near mucro. Perinotum covered by spicules (about 30-40 µm long), bearing sutural tufts with about 50 spicules (
<figureCitation id="DAEF2A57FFF44B1AFDC255566037F467" box="[522,605,1044,1070]" captionStart="FIG" captionStartId="6.[132,143,1149,1167]" captionTargetBox="[136,1451,216,1102]" captionTargetId="figure-427@6.[136,1452,216,1102]" captionTargetPageId="6" captionText="FIG. 2. — Acanthochitona oxum n. sp.; dorsal view; A, valve i; B, valve v; C, valve viii; D, E: details of the valve v,showing pustules with aesthetes (D) and detail of a pustule (E); F, details of the perinotum;G‒H: detail of the radula, radula, panoramic (G) and dorsal (H) views;I, details of the hyponotum. Scale bars: A-C,100 μm; D, I, 20 μm; E, 3 μm; F, 100 μm; G, 30 μm; H, 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6335682" httpUri="https://zenodo.org/record/6335682/files/figure.png" pageId="7" pageNumber="156">Fig. 2E</figureCitation>
), orange in colour. Hyponotum covered by spicules (about 10-20 µm long), cristaline, circular (
<figureCitation id="DAEF2A57FFF44B1AFE80551663F6F427" box="[328,412,1108,1134]" captionStart="FIG" captionStartId="6.[132,143,1149,1167]" captionTargetBox="[136,1451,216,1102]" captionTargetId="figure-427@6.[136,1452,216,1102]" captionTargetPageId="6" captionText="FIG. 2. — Acanthochitona oxum n. sp.; dorsal view; A, valve i; B, valve v; C, valve viii; D, E: details of the valve v,showing pustules with aesthetes (D) and detail of a pustule (E); F, details of the perinotum;G‒H: detail of the radula, radula, panoramic (G) and dorsal (H) views;I, details of the hyponotum. Scale bars: A-C,100 μm; D, I, 20 μm; E, 3 μm; F, 100 μm; G, 30 μm; H, 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6335682" httpUri="https://zenodo.org/record/6335682/files/figure.png" pageId="7" pageNumber="156">Fig. 2H</figureCitation>
). Gills abanal, merobranchial, with 7-10 ctenidia on each side; radula with rectangular central tooth, major lateral tooth with tricuspidate head (
<figureCitation id="DAEF2A57FFF44B1AFD4755D66096F4E7" box="[655,764,1172,1198]" captionStart="FIG" captionStartId="6.[132,143,1149,1167]" captionTargetBox="[136,1451,216,1102]" captionTargetId="figure-427@6.[136,1452,216,1102]" captionTargetPageId="6" captionText="FIG. 2. — Acanthochitona oxum n. sp.; dorsal view; A, valve i; B, valve v; C, valve viii; D, E: details of the valve v,showing pustules with aesthetes (D) and detail of a pustule (E); F, details of the perinotum;G‒H: detail of the radula, radula, panoramic (G) and dorsal (H) views;I, details of the hyponotum. Scale bars: A-C,100 μm; D, I, 20 μm; E, 3 μm; F, 100 μm; G, 30 μm; H, 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6335682" httpUri="https://zenodo.org/record/6335682/files/figure.png" pageId="7" pageNumber="156">Fig. 2F, G</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="0ACE6559FFF44B1AFF4C5596676AF2D9" pageId="7" pageNumber="156" type="discussion">
<paragraph id="426B36D2FFF44B1AFF4C55966282F4A5" blockId="7.[130,777,1236,2028]" box="[132,232,1236,1262]" pageId="7" pageNumber="156">REMARKS</paragraph>
<paragraph id="426B36D2FFF44B1AFF4C55B163C6F664" blockId="7.[130,777,1236,2028]" pageId="7" pageNumber="156">
<taxonomicName id="85D44D51FFF44B1AFF4C55B16302F544" authority="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone, 2022" authorityName="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone" authorityYear="2022" box="[132,360,1267,1293]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="oxum" status="sp. nov.">
<emphasis id="70A0EAC0FFF44B1AFF4C55B16302F544" box="[132,360,1267,1293]" italics="true" pageId="7" pageNumber="156">Acanthochitona oxum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="6B9357BBFFF44B1AFEB955B663C4F547" box="[369,430,1268,1294]" pageId="7" pageNumber="156" rank="species">n. sp.</taxonomicNameLabel>
differs from its Western Atlantic congeners by the presence of elliptic tegmental pustules forming ribs, in valve i, that extend divergently from the apex to the margin of the surface of the valves. It is similar to the pleurolateral area in intermediate valves, but its ribs are transversally arranged (
<figureCitation id="DAEF2A57FFF44B1AFE5454D163B1F5E4" box="[412,475,1427,1453]" captionStart="FIG" captionStartId="6.[132,143,1149,1167]" captionTargetBox="[136,1451,216,1102]" captionTargetId="figure-427@6.[136,1452,216,1102]" captionTargetPageId="6" captionText="FIG. 2. — Acanthochitona oxum n. sp.; dorsal view; A, valve i; B, valve v; C, valve viii; D, E: details of the valve v,showing pustules with aesthetes (D) and detail of a pustule (E); F, details of the perinotum;G‒H: detail of the radula, radula, panoramic (G) and dorsal (H) views;I, details of the hyponotum. Scale bars: A-C,100 μm; D, I, 20 μm; E, 3 μm; F, 100 μm; G, 30 μm; H, 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6335682" httpUri="https://zenodo.org/record/6335682/files/figure.png" pageId="7" pageNumber="156">Fig. 2</figureCitation>
). The head and intermediate valves are light brown, the pleurolateral and postmucronal areas are dark brown, and the perinotum is orange-coloured. Finally, the intermediate and tail valves have a conspicuous diagonal ridge (
<figureCitation id="DAEF2A57FFF44B1AFEE4575063F5F664" box="[300,415,1554,1581]" captionStart="FIG" captionStartId="6.[132,143,1149,1167]" captionTargetBox="[136,1451,216,1102]" captionTargetId="figure-427@6.[136,1452,216,1102]" captionTargetPageId="6" captionText="FIG. 2. — Acanthochitona oxum n. sp.; dorsal view; A, valve i; B, valve v; C, valve viii; D, E: details of the valve v,showing pustules with aesthetes (D) and detail of a pustule (E); F, details of the perinotum;G‒H: detail of the radula, radula, panoramic (G) and dorsal (H) views;I, details of the hyponotum. Scale bars: A-C,100 μm; D, I, 20 μm; E, 3 μm; F, 100 μm; G, 30 μm; H, 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6335682" httpUri="https://zenodo.org/record/6335682/files/figure.png" pageId="7" pageNumber="156">Fig. 2A, B</figureCitation>
).
</paragraph>
<paragraph id="426B36D2FFF44B1AFF5357706093F7E5" blockId="7.[130,777,1236,2028]" pageId="7" pageNumber="156">
The new species differs from
<taxonomicName id="85D44D51FFF44B1AFE135771616DF604" authority="(Pilsbry, 1893)" baseAuthorityName="Pilsbry" baseAuthorityYear="1893" box="[475,775,1586,1613]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="hemphilli">
<emphasis id="70A0EAC0FFF44B1AFE1357716034F605" box="[475,606,1586,1613]" italics="true" pageId="7" pageNumber="156">A. hemphilli</emphasis>
(Pilsbry, 1893)
</taxonomicName>
by the wider central area and more elevated valves; the shape and sculpture of the head valve; the colour of the pleural and jugal areas of the intermediate valves; the anterior portion of the jugal area being four to five times wider than the apex; by having a more elliptical head valve with a distinctive sculpture of ribs stretching from the apex to outer edge; pleural and jugal areas are distinguishable by colour; the posterior side of pleurolateral area straight; the tail valve with a prominent central mucro, with a barely visible diagonal ridge and the sculpture of the postmucronal area similar to the head valve.
<taxonomicName id="85D44D51FFF44B1AFF4C56D363E5F7E2" baseAuthorityName="Pilsbry" baseAuthorityYear="1893" box="[132,399,1937,1963]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="hemphilli">
<emphasis id="70A0EAC0FFF44B1AFF4C56D363E5F7E2" box="[132,399,1937,1963]" italics="true" pageId="7" pageNumber="156">Acanthochitona hemphilli</emphasis>
</taxonomicName>
is also found in shallower waters.
</paragraph>
<paragraph id="426B36D2FFF44B1AFF5356F066C3F1F9" blockId="7.[130,777,1236,2028]" lastBlockId="7.[810,1457,215,2027]" pageId="7" pageNumber="156">
From
<taxonomicName id="85D44D51FFF44B1AFF2856F360F7F782" authority="(Pilsbry, 1893)" baseAuthorityName="Pilsbry" baseAuthorityYear="1893" box="[224,669,1969,1995]" class="Polyplacophora" family="Ischnochitonidae" genus="Acanthochtiona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="70A0EAC0FFF44B1AFF2856F36380F782" box="[224,490,1969,1995]" italics="true" pageId="7" pageNumber="156">Acanthochtiona pygmaea</emphasis>
(Pilsbry, 1893)
</taxonomicName>
,
<taxonomicName id="85D44D51FFF44B1AFD6356F3616DF782" authority="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone, 2022" authorityName="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone" authorityYear="2022" box="[683,775,1969,1995]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="oxum" status="sp. nov.">
<emphasis id="70A0EAC0FFF44B1AFD6356F3616DF782" box="[683,775,1969,1995]" italics="true" pageId="7" pageNumber="156">A. oxum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="6B9357BBFFF44B1AFF4C569062AAF7A5" box="[132,192,2002,2028]" pageId="7" pageNumber="156" rank="species">n. sp.</taxonomicNameLabel>
differs by being smaller (up to
<quantity id="852C9B37FFF44B1AFDD356936018F7A5" box="[539,626,2001,2028]" metricMagnitude="-3" metricUnit="m" metricValue="2.3" pageId="7" pageNumber="156" unit="mm" value="2.3">2.3 mm</quantity>
long), by the monochromatic orange-coloured perinotum and hyponotum; oval tegmental pustules presenting four micraesthete pores on narrower portion and submedian megalaesthtes; by having a circular valve i; valves ii-vii presenting a wider triangular apophysis and straight to slightly convex jugal sinus, smooth jugal area; valve viii diamond-like with slightly convex jugal sinus, and diamond-like apophysis.
</paragraph>
<paragraph id="426B36D2FFF44B1AFC8B50F4676AF2D9" blockId="7.[810,1457,215,2027]" pageId="7" pageNumber="156">
Compared to
<taxonomicName id="85D44D51FFF44B1AFC1A50F46739F198" authority="(Pilsbry, 1893)" baseAuthorityName="Pilsbry" baseAuthorityYear="1893" box="[978,1363,438,465]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="rhodea">
<emphasis id="70A0EAC0FFF44B1AFC1A50F466DEF199" box="[978,1204,438,464]" italics="true" pageId="7" pageNumber="156">Acanthochitona rhodea</emphasis>
(Pilsbry, 1893)
</taxonomicName>
,
<taxonomicName id="85D44D51FFF44B1AFA9450F567DAF199" authority="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone, 2022" authorityName="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone" authorityYear="2022" box="[1372,1456,439,465]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="oxum" status="sp. nov.">
<emphasis id="70A0EAC0FFF44B1AFA9450F567DAF199" box="[1372,1456,439,465]" italics="true" pageId="7" pageNumber="156">A. oxum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="6B9357BBFFF44B1AFCE55095610FF1B8" box="[813,869,471,497]" pageId="7" pageNumber="156" rank="species">n. sp.</taxonomicNameLabel>
differs by having a more prominent apex and a straightmargined pleurolateral area surrounding valves ii-vii; usually slightly concave but sometimes convex jugal sinuses; the diagonal ridges on valves ii-vii barely visible; the postmucronal and jugal areas of valve viii sculptured similarly to valve i, although the jugal sinus is slightly concave.
</paragraph>
</subSubSection>
<subSubSection id="0ACE6559FFF44B1AFC8B53D467C3F466" pageId="7" pageNumber="156" type="reference_group">
<paragraph id="426B36D2FFF44B1AFC8B53D46682F366" blockId="7.[810,1457,215,2027]" pageId="7" pageNumber="156">
<taxonomicName id="85D44D51FFF44B1AFC8B53D4664BF2E6" ID-CoL="8YKYB" authorityName="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone" authorityYear="2022" box="[835,1057,662,688]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="oxum">
<emphasis id="70A0EAC0FFF44B1AFC8B53D4664BF2E6" box="[835,1057,662,688]" italics="true" pageId="7" pageNumber="156">Acanthochitona oxum</emphasis>
</taxonomicName>
differs from
<taxonomicName id="85D44D51FFF44B1AFB6E53D46719F2F9" ID-CoL="64DS4" authority="Righi, 1971" authorityName="Righi" authorityYear="1971" box="[1190,1395,662,688]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="ciroi">
<emphasis id="70A0EAC0FFF44B1AFB6E53D46685F2E6" box="[1190,1263,662,688]" italics="true" pageId="7" pageNumber="156">A. ciroi</emphasis>
<bibRefCitation id="26454B23FFF44B1AFB3C53D46719F2F9" author="Righi" box="[1268,1395,662,688]" firstAuthor="Righi" pageId="7" pageNumber="156" pagination="123 - 146" refId="ref6161" refString="RIGHI G. 1971. - Moluscos Poliplacoforos do Brasil. Papeis Avulsos de Zoologia 24 (9): 123 - 146." type="journal article" year="1971">Righi, 1971</bibRefCitation>
</taxonomicName>
by its more elliptic valve i, the sculpture of which consists of rows that extend across the entire surface, not just the apex region, and have a smooth area between the rows (
<figureCitation id="DAEF2A57FFF44B1AFB3553B7673BF346" box="[1277,1361,757,783]" captionStart="FIG" captionStartId="6.[132,143,1149,1167]" captionTargetBox="[136,1451,216,1102]" captionTargetId="figure-427@6.[136,1452,216,1102]" captionTargetPageId="6" captionText="FIG. 2. — Acanthochitona oxum n. sp.; dorsal view; A, valve i; B, valve v; C, valve viii; D, E: details of the valve v,showing pustules with aesthetes (D) and detail of a pustule (E); F, details of the perinotum;G‒H: detail of the radula, radula, panoramic (G) and dorsal (H) views;I, details of the hyponotum. Scale bars: A-C,100 μm; D, I, 20 μm; E, 3 μm; F, 100 μm; G, 30 μm; H, 10 μm." figureDoi="http://doi.org/10.5281/zenodo.6335682" httpUri="https://zenodo.org/record/6335682/files/figure.png" pageId="7" pageNumber="156">Fig. 2A</figureCitation>
), and by valves ii-vii, which have straight margins.
</paragraph>
<paragraph id="426B36D2FFF44B1AFC8B527767C3F466" blockId="7.[810,1457,215,2027]" pageId="7" pageNumber="156">
Compared to
<taxonomicName id="85D44D51FFF44B1AFC1152776725F306" ID-CoL="64DRL" authority="Righi, 1971" authorityName="Righi" authorityYear="1971" box="[985,1359,821,847]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="brunoi">
<emphasis id="70A0EAC0FFF44B1AFC11527766ACF306" box="[985,1222,821,847]" italics="true" pageId="7" pageNumber="156">Acanthochitona brunoi</emphasis>
<bibRefCitation id="26454B23FFF44B1AFB0452776725F306" author="Righi" box="[1228,1359,821,847]" firstAuthor="Righi" pageId="7" pageNumber="156" pagination="123 - 146" refId="ref6161" refString="RIGHI G. 1971. - Moluscos Poliplacoforos do Brasil. Papeis Avulsos de Zoologia 24 (9): 123 - 146." type="journal article" year="1971">Righi, 1971</bibRefCitation>
</taxonomicName>
, the new species differs by having a head valve that is elliptic, without a prominent apex; intermediate valves with indistinguishable jugal and pleural areas, a straight margined pleurolateral area, and prominent apex; the tail valve with a subcentral mucro, an antemucronal area sculptured similarly to the other valves and a barely visible diagonal ridge; and a more concave postmucronal area. It also occurs at a greater depth than
<taxonomicName id="85D44D51FFF44B1AFAF6555767C9F467" ID-CoL="64DRL" authorityName="Righi" authorityYear="1971" box="[1342,1443,1044,1071]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="brunoi">
<emphasis id="70A0EAC0FFF44B1AFAF6555767C9F467" box="[1342,1443,1044,1071]" italics="true" pageId="7" pageNumber="156">A. brunoi</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="0ACE6559FFF44B1AFC8B55766738F745" pageId="7" pageNumber="156" type="description">
<paragraph id="426B36D2FFF44B1AFC8B55766779F4A7" blockId="7.[810,1457,215,2027]" pageId="7" pageNumber="156">
The new species differs from
<taxonomicName id="85D44D51FFF44B1AFBBA557661D8F427" authority="Guerra Junior, 1983" authorityName="Guerra Junior" authorityYear="1983" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="terezae">
<emphasis id="70A0EAC0FFF44B1AFBBA55766734F407" box="[1138,1374,1076,1102]" italics="true" pageId="7" pageNumber="156">Acanthochitona terezae</emphasis>
Guerra
<bibRefCitation id="26454B23FFF44B1AFCE3551661D8F427" author="Junior" box="[811,946,1108,1134]" firstAuthor="Junior" pageId="7" pageNumber="156" pagination="385 - 389" refId="ref5842" refString="GUERRA- JUNIOR O. 1983. - Acanthochitona terezae sp. n., um novo poliplacoforo da costa brasileira (MOLLUSCA; POLYPLACOPHORA). Memorias do Instituto Oswaldo Cruz 78 (4): 385 - 389. https: // doi. org / 10.1590 / S 0074 - 02761983000400001" type="journal article" year="1983">Junior, 1983</bibRefCitation>
</taxonomicName>
by having solid valves sculptured with rounded tegmental pustules; by having a slightly concave valve i; valves ii-vii with a more concave jugal sinus and valve viii with well-marked antemucronal and postmucronal areas, which are easily distinguishable by a diagonal ridge.
</paragraph>
<paragraph id="426B36D2FFF44B1AFC8B55B166BEF665" blockId="7.[810,1457,215,2027]" pageId="7" pageNumber="156">
Compared to
<taxonomicName id="85D44D51FFF44B1AFC1D55B16703F547" authority="(Reeve, 1847)" baseAuthorityName="Reeve" baseAuthorityYear="1847" box="[981,1385,1267,1294]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="astrigera">
<emphasis id="70A0EAC0FFF44B1AFC1D55B166A4F544" box="[981,1230,1267,1293]" italics="true" pageId="7" pageNumber="156">Acanthochitona astrigera</emphasis>
(Reeve, 1847)
</taxonomicName>
,
<taxonomicName id="85D44D51FFF44B1AFABB55B661B2F564" authority="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone, 2022" authorityName="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone" authorityYear="2022" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="oxum" status="sp. nov.">
<emphasis id="70A0EAC0FFF44B1AFABB55B661B2F564" italics="true" pageId="7" pageNumber="156">Acanthochitona oxum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="6B9357BBFFF44B1AFC165456667DF567" box="[990,1047,1300,1326]" pageId="7" pageNumber="156" rank="species">n. sp.</taxonomicNameLabel>
can be distinguished by its smaller size (
<quantity id="852C9B37FFF44B1AFCFD547161E4F507" box="[821,910,1331,1358]" metricMagnitude="-3" metricUnit="m" metricValue="2.3" pageId="7" pageNumber="156" unit="mm" value="2.3">2.3 mm</quantity>
); monochromatic orange coloured perinotum; oval tegmental pustules presenting four micraesthetes on narrower portions; valve i with shorter insertion plates; valve ii-vii presenting posterior margin of pleurolateral area angulated near the apex, apophysis with straight external margin as well as external edge of insertion plates; smooth anterior margin of jugal sinus; and valve viii presenting slightly prominent mucro and straight anterior edge of apophysis.
</paragraph>
<paragraph id="426B36D2FFF44B1AFC8B57716738F745" blockId="7.[810,1457,215,2027]" pageId="7" pageNumber="156">
In comparison with
<taxonomicName id="85D44D51FFF44B1AFBCD57706733F604" authority="Lyons, 1988" authorityName="Lyons" authorityYear="1988" box="[1029,1369,1586,1613]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="lineata">
<emphasis id="70A0EAC0FFF44B1AFBCD577066B1F605" box="[1029,1243,1586,1612]" italics="true" pageId="7" pageNumber="156">Acanthochitona lineata</emphasis>
<bibRefCitation id="26454B23FFF44B1AFB1757716733F604" author="Lyons" box="[1247,1369,1587,1613]" firstAuthor="Lyons" pageId="7" pageNumber="156" pagination="79 - 114" refId="ref6040" refString="LYONS W. G. 1988. - A review of Caribbean Acanthochitonidae (Mollusca: Polyplacophora) with descriptions of six new species of Acanthochitona Gray, 1821. American Malacological Bulletin 6 (1): 79 - 114." type="journal article" year="1988">Lyons,1988</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="85D44D51FFF44B1AFAA9577167C5F605" authority="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone, 2022" authorityName="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone" authorityYear="2022" box="[1377,1455,1587,1613]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="oxum" status="sp. nov.">
<emphasis id="70A0EAC0FFF44B1AFAA9577167C5F605" box="[1377,1455,1587,1613]" italics="true" pageId="7" pageNumber="156">A.oxum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="6B9357BBFFF44B1AFCE557116109F624" box="[813,867,1619,1645]" pageId="7" pageNumber="156" rank="species">n. sp.</taxonomicNameLabel>
differs by its smaller size; orange-coloured monochromatic perinotum; oval tegmental pustules, presenting four micraesthetes on narrower portions; circular valve i; valve ii-vii with straight external edge of apophysis and external edge of insertion plates, straight to slightly convex jugal sinus; valve viii diamond-like, straight external edge, and slightly prominent mucro.
</paragraph>
</subSubSection>
<subSubSection id="0ACE6559FFF44B1AFC8B565061D0F7A2" pageId="7" pageNumber="156" type="reference_group">
<paragraph id="426B36D2FFF44B1AFC8B565061D0F7A2" blockId="7.[810,1457,215,2027]" pageId="7" pageNumber="156">
From
<taxonomicName id="85D44D51FFF44B1AFC4B5650677BF765" ID-CoL="64DV5" authority="Lyons, 1988" authorityName="Lyons" authorityYear="1988" box="[899,1297,1810,1836]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="worsfoldi">
<emphasis id="70A0EAC0FFF44B1AFC4B565066ECF765" box="[899,1158,1810,1836]" italics="true" pageId="7" pageNumber="156">Acanthochitona worsfoldi</emphasis>
<bibRefCitation id="26454B23FFF44B1AFB435650677BF765" author="Lyons" box="[1163,1297,1810,1836]" firstAuthor="Lyons" pageId="7" pageNumber="156" pagination="79 - 114" refId="ref6040" refString="LYONS W. G. 1988. - A review of Caribbean Acanthochitonidae (Mollusca: Polyplacophora) with descriptions of six new species of Acanthochitona Gray, 1821. American Malacological Bulletin 6 (1): 79 - 114." type="journal article" year="1988">Lyons, 1988</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="85D44D51FFF44B1AFAD35650671BF762" ID-CoL="8YKYB" authority="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone, 2022" authorityName="Jardim &amp; D &amp; Almeida &amp; L. &amp; Simone" authorityYear="2022" box="[1307,1393,1810,1836]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="156" phylum="Mollusca" rank="species" species="oxum" status="sp. nov.">
<emphasis id="70A0EAC0FFF44B1AFAD35650671BF762" box="[1307,1393,1810,1836]" italics="true" pageId="7" pageNumber="156">A. oxum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="6B9357BBFFF44B1AFABE565067C5F765" box="[1398,1455,1810,1836]" pageId="7" pageNumber="156" rank="species">n. sp.</taxonomicNameLabel>
differs by being smaller; by the monochromatic orange-coloured perinotum and hyponotum; oval tegmental pustules with four micraesthetes on narrower portions; circular valve i; valves ii-vii with apophysis straight with external edge, straight to slightly convex jugal sinus; and valve viii with straight anterior edge of apophysis.
</paragraph>
</subSubSection>
</treatment>
</document>
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