208 lines
23 KiB
XML
208 lines
23 KiB
XML
<document id="360A70D7288EF181D9765973DE78E329" ID-ISBN="978-2-85653-614-8" ID-ISSN="1243-4442" IM.materialsCitations_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630452400600" checkinUser="felipe" docAuthor="Dijkstra, Henk H. & Maestrati, Philippe" docDate="2008" docId="A73487B52016E34AFF3BBFFBFADFF988" docLanguage="en" docName="02-Dijkstra_Maestrati.pdf" docOrigin="Mémoires du Muséum national d'Histoire naturelle 196" docStyle="DocumentStyle:18F5342D935943D6DB33581BB9A2E502.4:MemMusNatHistNatu.2010-.journal_article" docStyleId="18F5342D935943D6DB33581BB9A2E502" docStyleName="MemMusNatHistNatu.2010-.journal_article" docStyleVersion="4" docTitle="Parvamussium biformatum Dijkstra & Maestrati 2008, n. sp." docType="treatment" docVersion="3" lastPageNumber="86" masterDocId="5B0DFFCD201EE343FFC9B904FFC8FF8A" masterDocTitle="New species and new records of deep-water Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the South Pacific" masterLastPageNumber="114" masterPageNumber="77" pageNumber="85" updateTime="1699275603203" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:titleInfo id="DEBFAD42ADDD8A67E8750A56D2D32FF7">
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<mods:title id="3206C9107FB8D6FEB92D79224EDAFB4F">New species and new records of deep-water Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the South Pacific</mods:title>
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<mods:name id="BB7C211EA95E630724BE6ED6E45344DA" type="personal">
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<mods:roleTerm id="1189B28378AF5E1BA5836F15B4F5D5CA">Author</mods:roleTerm>
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<mods:namePart id="7416258BC763B15EF5018022285A2DBF">Dijkstra, Henk H.</mods:namePart>
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<mods:affiliation id="C9AB64CFCDFFA07DE38087362CDA4D60">John T. Huber</mods:affiliation>
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<mods:name id="AA23519934EA040AAF2AA8BE47C55BE9" type="personal">
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<mods:roleTerm id="A2762D2A3D4D6C0BC25285630E8D59C5">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="6453DC6AC9BED69A1A47D21083A90C04">Maestrati, Philippe</mods:namePart>
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<mods:affiliation id="401B62D320CA9C2413989D158352739B">John T. Huber</mods:affiliation>
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</mods:name>
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<mods:typeOfResource id="E5B88124066E0FD9DF5680A21D11B9DF">text</mods:typeOfResource>
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<mods:titleInfo id="9F752A9CAD0F595AA2CECE477C1BC9F1">
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<mods:title id="A2F01B40230CC2F47D51EFA8E0FF179E">Mémoires du Muséum national d'Histoire naturelle</mods:title>
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</mods:titleInfo>
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<mods:part id="732FDDE5FA08D7863429C32AC14C2C4C">
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<mods:date id="EF8E50A60B21A652E98A1E34CC9DB08E">2008</mods:date>
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<mods:detail id="3798145A6CA1D2A8C65F11E7977A3981" type="volume">
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<mods:number id="7FD5C84FEA77D382D643D6C574583FB2">196</mods:number>
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</mods:detail>
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<mods:extent id="852937CD426D26F58E977D54350A160F" unit="page">
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<mods:start id="488C0CFA58B007B644B156DF806EE7B2">77</mods:start>
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<mods:end id="730DB5F9D9730E0BB13976D66C341287">114</mods:end>
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</mods:extent>
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<mods:classification id="007C2A61C4CE28E2810D828E57002C2A">journal article</mods:classification>
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<mods:identifier id="9524285B321B86E7DE6B424E934B9D65" type="ISBN">978-2-85653-614-8</mods:identifier>
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<mods:identifier id="3165521330695AD1CF1E0BF44FC10842" type="ISSN">1243-4442</mods:identifier>
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</mods:mods>
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<treatment id="A73487B52016E34AFF3BBFFBFADFF988" ID-DOI="http://doi.org/10.5281/zenodo.5491158" ID-Zenodo-Dep="5491158" LSID="urn:lsid:plazi:treatment:A73487B52016E34AFF3BBFFBFADFF988" httpUri="http://treatment.plazi.org/id/A73487B52016E34AFF3BBFFBFADFF988" lastPageId="9" lastPageNumber="86" pageId="8" pageNumber="85">
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<subSubSection id="678765282016E34BFF3BBFFBFEFDF8B0" pageId="8" pageNumber="85" type="nomenclature">
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<paragraph id="2F2236A32016E34BFF3BBFFBFDBBF89D" blockId="8.[212,627,1791,1850]" box="[242,627,1791,1815]" pageId="8" pageNumber="85">
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<heading id="746A81CF2016E34BFF3BBFFBFDBBF89D" box="[242,627,1791,1815]" fontSize="10" level="2" pageId="8" pageNumber="85" reason="2">
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<taxonomicName id="E89D4D202016E34BFF3BBFFBFDFBF89C" ID-CoL="75T6B" authority="Dijkstra & Maestrati, 2008" authorityName="Dijkstra & Maestrati" authorityYear="2008" box="[242,563,1791,1814]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="8" pageNumber="85" phylum="Mollusca" rank="species" species="biformatum" status="sp. nov.">
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<emphasis id="1DE9EAB12016E34BFF3BBFFBFDFBF89C" bold="true" box="[242,563,1791,1814]" italics="true" pageId="8" pageNumber="85">Parvamussium biformatum</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="06DA57CA2016E34BFDF0BE04FDBBF89D" box="[569,627,1792,1815]" pageId="8" pageNumber="85" rank="species">n. sp.</taxonomicNameLabel>
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</heading>
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</paragraph>
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<paragraph id="2F2236A32016E34BFF1DBE26FEFDF8B0" blockId="8.[212,627,1791,1850]" box="[212,309,1826,1850]" pageId="8" pageNumber="85">Figs 5-10</paragraph>
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</subSubSection>
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<subSubSection id="678765282017E34AFF3BB80EFC86FE28" pageId="9" pageNumber="86" type="materials_examined">
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<paragraph id="2F2236A32017E34AFF3BB80EFCEAFEA8" blockId="9.[242,802,266,290]" box="[242,802,266,290]" pageId="9" pageNumber="86">
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<materialsCitation id="9FF53CFE2017E34AFF3BB80EFCEAFEA8" box="[242,802,266,290]" collectionCode="MNHN" pageId="9" pageNumber="86" specimenCode="MNHN 20448" specimenCount="1" typeStatus="holotype">
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TYPE MATERIAL. —
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<typeStatus id="F02688012017E34AFE06B80EFDFAFEA8" box="[463,562,266,290]" pageId="9" pageNumber="86" type="holotype">Holotype</typeStatus>
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(spm)
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<specimenCode id="7F3B9ED82017E34AFD49B80EFCD6FEA8" box="[640,798,266,290]" collectionCode="MNHN" country="France" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" lsid="urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="9" pageNumber="86">MNHN 20448</specimenCode>
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.
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</materialsCitation>
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</paragraph>
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<paragraph id="2F2236A32017E34AFF3BB854FAD3FEED" blockId="9.[242,1307,335,359]" box="[242,1307,335,359]" pageId="9" pageNumber="86">
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<typeStatus id="F02688012017E34AFF3BB854FEE6FEED" box="[242,302,336,359]" pageId="9" pageNumber="86">TYPE</typeStatus>
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LOCALITY. —
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<materialsCitation id="9FF53CFE2017E34AFE07B84BFADEFEED" box="[462,1302,335,359]" country="Solomon Islands" elevation="498" latitude="-8.333333" location="Solomon Islands" longLatPrecision="1301" longitude="160.65" pageId="9" pageNumber="86" specimenCount="1" typeStatus="holotype">
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||
<collectingCountry id="578A76332017E34AFE07B84BFD4BFEED" box="[462,643,335,359]" name="Solomon Islands" pageId="9" pageNumber="86">Solomon Islands</collectingCountry>
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,
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<geoCoordinate id="4AA950642017E34AFD47B84BFD2DFEED" box="[654,741,335,359]" degrees="08" direction="south" minutes="20" orientation="latitude" pageId="9" pageNumber="86" precision="925" value="-8.333333">08°20’S</geoCoordinate>
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,
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<geoCoordinate id="4AA950642017E34AFD39B84BFC9FFEED" box="[752,855,335,359]" degrees="160" direction="east" minutes="39" orientation="longitude" pageId="9" pageNumber="86" precision="925" value="160.65">160°39’E</geoCoordinate>
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,
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<quantity id="E8659B462017E34AFCABB84BFC1FFEED" box="[866,983,335,359]" metricMagnitude="2" metricUnit="m" metricValue="4.975" metricValueMax="5.42" metricValueMin="4.529999999999999" pageId="9" pageNumber="86" unit="m" value="497.5" valueMax="542.0" valueMin="453.0">
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<elevation id="A4B0D1902017E34AFCABB84BFC1FFEED" box="[866,983,335,359]" metricMagnitude="2" metricUnit="m" metricValue="4.975" metricValueMax="5.42" metricValueMin="4.529999999999999" pageId="9" pageNumber="86" unit="m" value="497.5" valueMax="542.0" valueMin="453.0">453-542 m</elevation>
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</quantity>
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||
[SALOMON 1: stn DW 1770]
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</materialsCitation>
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.
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</paragraph>
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<paragraph id="2F2236A32017E34AFF3BB888FC86FE28" blockId="9.[242,846,396,418]" box="[242,846,396,418]" pageId="9" pageNumber="86">
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MATERIAL EXAMINED. — Only known from the
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<typeStatus id="F02688012017E34AFD02B888FD3CFE2B" box="[715,756,396,417]" pageId="9" pageNumber="86">type</typeStatus>
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||
material.
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="678765282017E34AFF3BB8DEFCF0FE78" box="[242,824,474,498]" pageId="9" pageNumber="86" type="distribution">
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<paragraph id="2F2236A32017E34AFF3BB8DEFCF0FE78" blockId="9.[242,824,474,498]" box="[242,824,474,498]" pageId="9" pageNumber="86">
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DISTRIBUTION. — Only known from the
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<typeStatus id="F02688012017E34AFD78B8DEFD17FE78" box="[689,735,474,498]" pageId="9" pageNumber="86">type</typeStatus>
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||
locality.
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="678765282017E34AFF3BBB1BFD39FB97" pageId="9" pageNumber="86" type="description">
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||
<paragraph id="2F2236A32017E34AFF3BBB1BFEB2FDF7" blockId="9.[240,1476,543,1053]" pageId="9" pageNumber="86">DESCRIPTION. — Shell small, fragile, circular, semi-transparent, inequivalve, rather inflated, left valve slightly more convex than right valve, auricles unequal in shape and size, umbonal angle about 110˚, colour whitish with brownish maculations.</paragraph>
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<paragraph id="2F2236A32017E34AFED9BB83FD8FFCC7" blockId="9.[240,1476,543,1053]" pageId="9" pageNumber="86">
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Left valve with reticulated sculpture produced by intersecting commarginal and radial sculpture in early to medium growth stages, and with more prominent commarginal sculpture in late growth stages. Commarginal lamellae commence at 0.5 mm shell height and extend to the ventral margin, more closely spaced near the margin. Irregularly and widely spaced, intercalated radial riblets commence at
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<quantity id="E8659B462017E34AFCA1BBEBFC6FFC8D" box="[872,935,751,775]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="9" pageNumber="86" unit="mm" value="1.0">1 mm</quantity>
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shell height and also extend to the ventral margin, weaker and more closely spaced near the margin. Anterior and posterior auricles with closely spaced commarginal lamellae, umbonal area smooth.
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</paragraph>
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<paragraph id="2F2236A32017E34AFED9BA53FE2BFC3F" blockId="9.[240,1476,543,1053]" pageId="9" pageNumber="86">Right valve with regularly arranged commarginal lirae (1 per mm on central part of disc). Anterior auricle with closely spaced, coarse commarginal lamellae, more delicate on posterior. Hinge line straight. Byssal notch shallow, byssal fasciole lacking.</paragraph>
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<paragraph id="2F2236A32017E34AFED9BABBFDA3FC70" blockId="9.[240,1476,543,1053]" pageId="9" pageNumber="86">
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||
Prominent internal ribs, 8 plus 2 rudimentary and 1 weak auricular on each side, commence at
|
||
<quantity id="E8659B462017E34AFACBBABBFA89FC5D" box="[1282,1345,959,983]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="9" pageNumber="86" unit="mm" value="1.0">1 mm</quantity>
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shell height and extend close to ventral margin.
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</paragraph>
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||
<paragraph id="2F2236A32017E34AFED9BD01FD39FB97" blockId="9.[240,1476,543,1053]" box="[272,753,1029,1053]" pageId="9" pageNumber="86">
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||
Dimensions of
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<typeStatus id="F02688012017E34AFE7BBD01FDDBFB97" box="[434,531,1029,1053]" pageId="9" pageNumber="86" type="holotype">holotype</typeStatus>
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: H 4.6, W 4.9, D 1.6.
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</paragraph>
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</subSubSection>
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||
<subSubSection id="678765282017E34AFF3BBD4EFC6CFB67" pageId="9" pageNumber="86" type="discussion">
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||
<paragraph id="2F2236A32017E34AFF3BBD4EFC6CFB67" blockId="9.[242,1474,1098,1469]" pageId="9" pageNumber="86">
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REMARKS. —
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||
<taxonomicName id="E89D4D202017E34AFE45BD4FFD68FBE8" authorityName="Dijkstra & Maestrati" authorityYear="2008" box="[396,672,1099,1122]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="biformatum">
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<emphasis id="1DE9EAB12017E34AFE45BD4FFD68FBE8" box="[396,672,1099,1122]" italics="true" pageId="9" pageNumber="86">Parvamussium biformatum</emphasis>
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</taxonomicName>
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resembles
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<taxonomicName id="E89D4D202017E34AFCD7BD4FFB96FBE8" authority="Dijkstra, 1995" authorityName="Dijkstra" authorityYear="1995" box="[798,1118,1098,1122]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="multiliratum">
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<emphasis id="1DE9EAB12017E34AFCD7BD4FFC71FBE8" box="[798,953,1099,1122]" italics="true" pageId="9" pageNumber="86">P. multiliratum</emphasis>
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<bibRefCitation id="4B0C4B522017E34AFC0ABD4EFB96FBE8" author="DIJKSTRA H. H." box="[963,1118,1098,1122]" pageId="9" pageNumber="86" pagination="3 - 25" refId="ref26691" refString="DIJKSTRA H. H. 1995. - Bathyal Pectinoidea (Bivalvia: Propeamussiidae: regions. Nature and Culture 1: 3 - 25. Tokyo." type="journal article" year="1995">
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Dijkstra,
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<quantity id="E8659B462017E34AFBEEBD4EFB96FBE8" box="[1063,1118,1098,1122]" metricMagnitude="1" metricUnit="m" metricValue="5.0673" pageId="9" pageNumber="86" unit="in" value="1995.0">1995</quantity>
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</bibRefCitation>
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||
</taxonomicName>
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in shape, but differs strongly in sculpture (reticulate in early ontogeny and commarginal in late ontogeny;
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<taxonomicName id="E89D4D202017E34AFBC2BD69FB6CFB0F" authorityName="Dijkstra" authorityYear="1995" box="[1035,1188,1133,1157]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="multiliratum">
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||
<emphasis id="1DE9EAB12017E34AFBC2BD69FB6CFB0F" box="[1035,1188,1133,1157]" italics="true" pageId="9" pageNumber="86">P. multiliratum</emphasis>
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</taxonomicName>
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commarginal throughout) and internal ribs (8 prominent + 2 rudimentary,
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<taxonomicName id="E89D4D202017E34AFD39BD94FC4FFB22" authorityName="Dijkstra" authorityYear="1995" box="[752,903,1168,1192]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="multiliratum">
|
||
<emphasis id="1DE9EAB12017E34AFD39BD94FC4FFB22" box="[752,903,1168,1192]" italics="true" pageId="9" pageNumber="86">P. multiliratum</emphasis>
|
||
</taxonomicName>
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||
14 delicate + 2 rudimentary). Moreover,
|
||
<taxonomicName id="E89D4D202017E34AFAFABD94FA0AFB22" authorityName="Dijkstra & Maestrati" authorityYear="2008" box="[1331,1474,1168,1192]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="biformatum">
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||
<emphasis id="1DE9EAB12017E34AFAFABD94FA0AFB22" box="[1331,1474,1168,1192]" italics="true" pageId="9" pageNumber="86">P. biformatum</emphasis>
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||
</taxonomicName>
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||
has a dull umbonal area, that of
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<taxonomicName id="E89D4D202017E34AFD9CBDB7FD27FB40" authorityName="Dijkstra" authorityYear="1995" box="[597,751,1203,1226]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="multiliratum">
|
||
<emphasis id="1DE9EAB12017E34AFD9CBDB7FD27FB40" box="[597,751,1203,1226]" italics="true" pageId="9" pageNumber="86">P. multiliratum</emphasis>
|
||
</taxonomicName>
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||
being glossy, and it also differs in colour (
|
||
<taxonomicName id="E89D4D202017E34AFB09BDB7FA9AFB40" authorityName="Dijkstra & Maestrati" authorityYear="2008" box="[1216,1362,1203,1226]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="biformatum">
|
||
<emphasis id="1DE9EAB12017E34AFB09BDB7FA9AFB40" box="[1216,1362,1203,1226]" italics="true" pageId="9" pageNumber="86">P. biformatum</emphasis>
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||
</taxonomicName>
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is opaque whitish and brownish,
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||
<taxonomicName id="E89D4D202017E34AFE2EBDD1FDB7FB67" authorityName="Dijkstra" authorityYear="1995" box="[487,639,1237,1261]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="multiliratum">
|
||
<emphasis id="1DE9EAB12017E34AFE2EBDD1FDB7FB67" box="[487,639,1237,1261]" italics="true" pageId="9" pageNumber="86">P. multiliratum</emphasis>
|
||
</taxonomicName>
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more whitish transparent).
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</paragraph>
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||
</subSubSection>
|
||
<subSubSection id="678765282017E34AFED9BDFCFCFCFA37" pageId="9" pageNumber="86" type="reference_group">
|
||
<paragraph id="2F2236A32017E34AFED9BDFCFCFCFA37" blockId="9.[242,1474,1098,1469]" pageId="9" pageNumber="86">
|
||
<taxonomicName id="E89D4D202017E34AFED9BDFCFDE0FA9A" ID-CoL="75T6B" authorityName="Dijkstra & Maestrati" authorityYear="2008" box="[272,552,1272,1296]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="biformatum">
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||
<emphasis id="1DE9EAB12017E34AFED9BDFCFDE0FA9A" box="[272,552,1272,1296]" italics="true" pageId="9" pageNumber="86">Parvamussium biformatum</emphasis>
|
||
</taxonomicName>
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||
somewhat resembles
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<taxonomicName id="E89D4D202017E34AFCD5BDFCFB06FA85" ID-CoL="6TT74" authority="Dijkstra, 1995" authorityName="Dijkstra" authorityYear="1995" box="[796,1230,1271,1296]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="retiaculum">
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||
<emphasis id="1DE9EAB12017E34AFCD5BDFCFBE1FA9A" box="[796,1065,1272,1296]" italics="true" pageId="9" pageNumber="86">Parvamussium retiaculum</emphasis>
|
||
<bibRefCitation id="4B0C4B522017E34AFBFBBDF3FB06FA85" author="DIJKSTRA H. H." box="[1074,1230,1271,1295]" pageId="9" pageNumber="86" pagination="3 - 25" refId="ref26691" refString="DIJKSTRA H. H. 1995. - Bathyal Pectinoidea (Bivalvia: Propeamussiidae: regions. Nature and Culture 1: 3 - 25. Tokyo." type="journal article" year="1995">
|
||
Dijkstra,
|
||
<quantity id="E8659B462017E34AFB5FBDF3FB06FA85" box="[1174,1230,1271,1295]" metricMagnitude="1" metricUnit="m" metricValue="5.0673" pageId="9" pageNumber="86" unit="in" value="1995.0">1995</quantity>
|
||
</bibRefCitation>
|
||
</taxonomicName>
|
||
in sculpture. The two species have a similar reticulate sculpture on the central part of the disc, but differ strongly ventrally (
|
||
<taxonomicName id="E89D4D202017E34AFAF9BC1FFA0AFAB8" ID-CoL="75T6B" authorityName="Dijkstra & Maestrati" authorityYear="2008" box="[1328,1474,1307,1330]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="biformatum">
|
||
<emphasis id="1DE9EAB12017E34AFAF9BC1FFA0AFAB8" box="[1328,1474,1307,1330]" italics="true" pageId="9" pageNumber="86">P. biformatum</emphasis>
|
||
</taxonomicName>
|
||
commarginal,
|
||
<taxonomicName id="E89D4D202017E34AFE45BC39FDDCFADF" ID-CoL="6TT74" authorityName="Dijkstra" authorityYear="1995" box="[396,532,1341,1365]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="retiaculum">
|
||
<emphasis id="1DE9EAB12017E34AFE45BC39FDDCFADF" box="[396,532,1341,1365]" italics="true" pageId="9" pageNumber="86">P. retiaculum</emphasis>
|
||
</taxonomicName>
|
||
reticulate). Moreover,
|
||
<taxonomicName id="E89D4D202017E34AFCC3BC39FC55FADF" ID-CoL="75T6B" authorityName="Dijkstra & Maestrati" authorityYear="2008" box="[778,925,1341,1365]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="biformatum">
|
||
<emphasis id="1DE9EAB12017E34AFCC3BC39FC55FADF" box="[778,925,1341,1365]" italics="true" pageId="9" pageNumber="86">P. biformatum</emphasis>
|
||
</taxonomicName>
|
||
is circular in shape with a smaller anterior auricle,
|
||
<taxonomicName id="E89D4D202017E34AFF3BBC64FEB1FAF2" ID-CoL="6TT74" authorityName="Dijkstra" authorityYear="1995" box="[242,377,1376,1400]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="retiaculum">
|
||
<emphasis id="1DE9EAB12017E34AFF3BBC64FEB1FAF2" box="[242,377,1376,1400]" italics="true" pageId="9" pageNumber="86">P. retiaculum</emphasis>
|
||
</taxonomicName>
|
||
being more oblong.
|
||
<taxonomicName id="E89D4D202017E34AFD9EBC64FCA1FAF2" ID-CoL="75T6B" authorityName="Dijkstra & Maestrati" authorityYear="2008" box="[599,873,1376,1400]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="biformatum">
|
||
<emphasis id="1DE9EAB12017E34AFD9EBC64FCA1FAF2" box="[599,873,1376,1400]" italics="true" pageId="9" pageNumber="86">Parvamussium biformatum</emphasis>
|
||
</taxonomicName>
|
||
has fewer internal ribs (8 + 2 rudimentary,
|
||
<taxonomicName id="E89D4D202017E34AFAF2BC64FA0AFAF2" ID-CoL="6TT74" authorityName="Dijkstra" authorityYear="1995" box="[1339,1474,1376,1400]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="retiaculum">
|
||
<emphasis id="1DE9EAB12017E34AFAF2BC64FA0AFAF2" box="[1339,1474,1376,1400]" italics="true" pageId="9" pageNumber="86">P. retiaculum</emphasis>
|
||
</taxonomicName>
|
||
12) and they commence earlier. The two species are semi-transparent, but they differ in colour (
|
||
<taxonomicName id="E89D4D202017E34AFB3DBC87FA4EFA10" ID-CoL="75T6B" authorityName="Dijkstra & Maestrati" authorityYear="2008" box="[1268,1414,1411,1434]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="biformatum">
|
||
<emphasis id="1DE9EAB12017E34AFB3DBC87FA4EFA10" box="[1268,1414,1411,1434]" italics="true" pageId="9" pageNumber="86">P. biformatum</emphasis>
|
||
</taxonomicName>
|
||
whitish with brownish maculations,
|
||
<taxonomicName id="E89D4D202017E34AFD8EBCA1FD06FA37" ID-CoL="6TT74" authorityName="Dijkstra" authorityYear="1995" box="[583,718,1445,1469]" class="Bivalvia" family="Propeamussiidae" genus="Parvamussium" kingdom="Animalia" order="Pectinida" pageId="9" pageNumber="86" phylum="Mollusca" rank="species" species="retiaculum">
|
||
<emphasis id="1DE9EAB12017E34AFD8EBCA1FD06FA37" box="[583,718,1445,1469]" italics="true" pageId="9" pageNumber="86">P. retiaculum</emphasis>
|
||
</taxonomicName>
|
||
whitish).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="678765282017E34AFF3BBCEEFADFF988" box="[242,1303,1514,1538]" pageId="9" pageNumber="86" type="etymology">
|
||
<paragraph id="2F2236A32017E34AFF3BBCEEFADFF988" blockId="9.[242,1303,1514,1538]" box="[242,1303,1514,1538]" pageId="9" pageNumber="86">
|
||
ETYMOLOGY. — Two different sculptures on the left valve (Latin
|
||
<emphasis id="1DE9EAB12017E34AFC65BCEFFBD1F988" box="[940,1049,1515,1538]" italics="true" pageId="9" pageNumber="86">biformatus</emphasis>
|
||
, adjective = two forms).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |