243 lines
29 KiB
XML
243 lines
29 KiB
XML
<document id="612932A323D1952D596E82F86C77902B" ID-DOI="10.1080/00222930410001695123" ID-ISSN="1464-5262" ID-Zenodo-Dep="10097787" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629856180639" checkinUser="felipe" docAuthor="Oliver, P. Graham & Holmes, Anna" docDate="2004" docId="03B33A715636FF8336F2D8C617E9FC90" docLanguage="en" docName="JNatHist.38.23-24.3175-3227.pdf" docOrigin="Journal of Natural History 38 (23)" docSource="http://dx.doi.org/10.1080/00222930410001695123" docStyle="DocumentStyle:443144A73DAE3E092C51A378E4CD0138.2:JNatHist.2003-2004.journal_article.1cover" docStyleId="443144A73DAE3E092C51A378E4CD0138" docStyleName="JNatHist.2003-2004.journal_article.1cover" docStyleVersion="2" docTitle="Acar marsupialis Oliver & Holmes, 2004, n. sp." docType="treatment" docVersion="3" lastPageNumber="3178" masterDocId="FF8A42095634FF873701DC0B1465FFB5" masterDocTitle="Cryptic bivalves with descriptions of new species from the Rodrigues lagoon" masterLastPageNumber="3227" masterPageNumber="3175" pageNumber="3176" updateTime="1699587990154" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:mods id="C2670D3323A2240530A0CE0F0B4906AA" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="7C7A1B4266FDF720FD75F87E5CF951B8">
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<mods:title id="AB494D5180FEF9EEBF302D1256102A0B">Cryptic bivalves with descriptions of new species from the Rodrigues lagoon</mods:title>
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</mods:titleInfo>
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<mods:name id="E4CBD43D72947B62FC04DAA55818EC91" type="personal">
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<mods:role id="81D4A8FBAD32591DB7EC1F96D11ABE08">
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<mods:roleTerm id="C044BD762D667CFCEC997E31F7E33AB5">Author</mods:roleTerm>
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<mods:namePart id="30A12D888421D05BD29E848ED6F36248">Oliver, P. Graham</mods:namePart>
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<mods:name id="5F53080DEDC30BD46E45279C6457A746" type="personal">
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<mods:roleTerm id="F037F28881C331850FC0EF049517A1E9">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="3B09BEE4723789A263446F35C7F1D36E">Holmes, Anna</mods:namePart>
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</mods:name>
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<mods:typeOfResource id="692DA0D108C86834B470A91EB4A8EF5E">text</mods:typeOfResource>
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<mods:titleInfo id="9A432D077747A856774542480E378C47">
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<mods:title id="4B13AC9786592F2C31172451963359C3">Journal of Natural History</mods:title>
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</mods:titleInfo>
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<mods:part id="97CECE22DDD4B2664C8238A92EDB1729">
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<mods:date id="B7112FB712159B6E823611A6065185D9">2004</mods:date>
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<mods:detail id="EE843169CC717995E36C2269235FF69E" type="pubDate">
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<mods:number id="90E28C363BC84BD0576FA02D4B7B21F7">2004-12-01</mods:number>
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</mods:detail>
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<mods:detail id="523863C66B29D46A88D46CF5FB91B0BB" type="volume">
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<mods:number id="A3EB336960F0FF7A4A1DD799E8ECE2D4">38</mods:number>
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</mods:detail>
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<mods:detail id="B841E7E020DED8590B8DC265FC1228AA" type="issue">
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<mods:number id="437050D5ABFD2579965DEECD7B5D936E">23</mods:number>
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</mods:detail>
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<mods:extent id="0E7AD613E170854AE3C0C1E827ADB778" unit="page">
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<mods:start id="F64C05EAB370D21C9033D2B1617DFB4E">3175</mods:start>
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<mods:end id="FFF123397C17A6181E2BF84A092F5518">3227</mods:end>
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<mods:location id="C0CD531C5DBE13D1F5195BABB16B278B">
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<mods:url id="78316B43830A0B01CC3F4592E6C7469A">http://dx.doi.org/10.1080/00222930410001695123</mods:url>
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<mods:classification id="DDB7AB47C2F66C6DFAF1FE98C4372B74">journal article</mods:classification>
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<mods:identifier id="D639DCB0A568830DFA201CACC7E40695" type="DOI">10.1080/00222930410001695123</mods:identifier>
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<mods:identifier id="F7626E68052D73EC3D59066EE067ADFA" type="ISSN">1464-5262</mods:identifier>
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<mods:identifier id="000D21CE946339656B914A2BF69D5CC2" type="Zenodo-Dep">10097787</mods:identifier>
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</mods:mods>
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<treatment id="03B33A715636FF8336F2D8C617E9FC90" LSID="urn:lsid:plazi:treatment:03B33A715636FF8336F2D8C617E9FC90" httpUri="http://treatment.plazi.org/id/03B33A715636FF8336F2D8C617E9FC90" lastPageId="4" lastPageNumber="3178" pageId="2" pageNumber="3176">
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<subSubSection id="C300D8EC5636FF8536F2D8C61698FB50" box="[499,765,1229,1253]" pageId="2" pageNumber="3176" type="nomenclature">
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<paragraph id="8BA58B675636FF8536F2D8C61698FB50" blockId="2.[499,765,1229,1285]" box="[499,765,1229,1253]" pageId="2" pageNumber="3176">
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<heading id="D0ED3C0B5636FF8536F2D8C61698FB50" box="[499,765,1229,1253]" centered="true" fontSize="10" level="2" pageId="2" pageNumber="3176" reason="3">
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<taxonomicName id="4C1AF0E45636FF8536F2D8C616D7FB50" ID-CoL="92VQ" authorityName="P. G. Oliver & Holmes" authorityYear="2004" box="[499,690,1229,1253]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="2" pageNumber="3176" phylum="Mollusca" rank="species" species="marsupialis" status="sp. nov.">
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<emphasis id="B96E57755636FF8536F2D8C616D7FB50" bold="true" box="[499,690,1229,1253]" italics="true" pageId="2" pageNumber="3176">Acar marsupialis</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A25DEA0E5636FF8535BCD8C61698FB50" box="[701,765,1229,1253]" pageId="2" pageNumber="3176" rank="species">n. sp.</taxonomicNameLabel>
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</heading>
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C300D8EC5636FF853535D8E616D8FAB0" box="[564,701,1261,1285]" pageId="2" pageNumber="3176" type="description">
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<paragraph id="8BA58B675636FF853535D8E616D8FAB0" blockId="2.[499,765,1229,1285]" box="[564,701,1261,1285]" pageId="2" pageNumber="3176">
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||
(
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<figureCitation id="132197E25636FF85353AD8E616D1FAB0" box="[571,692,1261,1285]" captionStart="FIGS" captionStartId="3.[159,175,1191,1213]" captionTargetBox="[164,1116,173,1147]" captionTargetId="figure-125@3.[159,1116,170,1153]" captionTargetPageId="3" captionText="FIGS. 1–7. (1–5) Acar marsupialis n. sp. (1, 2) Holotype, NMW.Z.2001.061.00004: (1) external (MontageTM); (2) internal (SEM). (3–5) Paratype, NMW.Z.2001.061.00005 (SEM): (3) external; (4) internal; (5) prodissoconch. (6, 7) Acar plicata Rodrigues, NMW.Z.2000.086.00034 (SEM): (6) external left valve; (7) prodissoconch." figureDoi="http://doi.org/10.5281/zenodo.10097789" httpUri="https://zenodo.org/record/10097789/files/figure.png" pageId="2" pageNumber="3176">figures 1–5</figureCitation>
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)
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||
</paragraph>
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||
</subSubSection>
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<subSubSection id="C300D8EC5636FF8337C3D92617E9FC90" lastPageId="4" lastPageNumber="3178" pageId="2" pageNumber="3176" type="materials_examined">
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<paragraph id="8BA58B675636FF8537C3D926168DFAD0" blockId="2.[154,1111,1325,1732]" pageId="2" pageNumber="3176">
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||
<materialsCitation id="3B72813A5636FF8537C3D926168DFAD0" collectionCode="NMW" elevation="17" location="Grand Pate'" municipality="Port Mathurin" pageId="2" pageNumber="3176" specimenCount="1" typeStatus="holotype">
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||
<typeStatus id="54A135C55636FF8537C3D9261553FAF6" box="[194,310,1325,1349]" pageId="2" pageNumber="3176" type="holotype">HOLOTYPE</typeStatus>
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||
: 1 rv,
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<location id="8EC5DDBC5636FF8536A5D9261652FAF0" LSID="urn:lsid:plazi:treatment:03B33A715636FF8336F2D8C617E9FC90:8EC5DDBC5636FF8536A5D9261652FAF0" box="[420,567,1325,1349]" municipality="Port Mathurin" name="Grand Pate'" pageId="2" pageNumber="3176">Grand Pate´</location>
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||
, off
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<collectingMunicipality id="6BC1111D5636FF853582D9261752FAF0" box="[643,823,1325,1349]" pageId="2" pageNumber="3176">Port Mathurin</collectingMunicipality>
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in shell gravel,
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<quantity id="4CE226825636FF85331BD9261037FAF0" box="[1050,1106,1325,1349]" metricMagnitude="1" metricUnit="m" metricValue="1.7" pageId="2" pageNumber="3176" unit="m" value="17.0">
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<elevation id="00376C545636FF85331BD9261037FAF0" box="[1050,1106,1325,1349]" metricMagnitude="1" metricUnit="m" metricValue="1.7" pageId="2" pageNumber="3176" unit="m" value="17.0">17 m</elevation>
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</quantity>
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, 19
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<emphasis id="B96E57755636FF8537B4D94614DAFAD0" bold="true" box="[181,191,1357,1381]" pageId="2" pageNumber="3176">‡</emphasis>
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||
39.307
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||
<emphasis id="B96E57755636FF853608D947156AFAD0" bold="true" box="[265,271,1356,1381]" pageId="2" pageNumber="3176">’</emphasis>
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S, 63
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<emphasis id="B96E57755636FF85364BD9461531FAD0" bold="true" box="[330,340,1357,1381]" pageId="2" pageNumber="3176">‡</emphasis>
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||
24.950
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||
<emphasis id="B96E57755636FF85369FD94715C1FAD0" bold="true" box="[414,420,1356,1381]" pageId="2" pageNumber="3176">’</emphasis>
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E.
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<collectionCode id="ED0B13A25636FF8536C9D9461677FAD0" box="[456,530,1357,1381]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="2" pageNumber="3176">NMW</collectionCode>
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.Z.2001.061.00004.
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</materialsCitation>
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||
</paragraph>
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||
<paragraph id="8BA58B675636FF8537C3D96617EDFA30" blockId="2.[154,1111,1325,1732]" box="[194,904,1389,1413]" pageId="2" pageNumber="3176">
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<materialsCitation id="3B72813A5636FF8537C3D96616D4FA30" box="[194,689,1389,1413]" collectionCode="NMW" pageId="2" pageNumber="3176" specimenCount="2" typeStatus="paratype">
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<typeStatus id="54A135C55636FF8537C3D9661559FA36" box="[194,316,1389,1413]" pageId="2" pageNumber="3176" type="paratype">PARATYPES</typeStatus>
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||
: 3 lvz1 rv as
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||
<typeStatus id="54A135C55636FF8536F3D966163CFA30" box="[498,601,1389,1413]" pageId="2" pageNumber="3176" type="holotype">holotype</typeStatus>
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||
,
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||
<collectionCode id="ED0B13A25636FF853566D96616D4FA30" box="[615,689,1389,1413]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="2" pageNumber="3176">NMW</collectionCode>
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||
</materialsCitation>
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||
.Z.2001.061.00005.
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||
</paragraph>
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||
<paragraph id="8BA58B675636FF8537C3D9861655FA71" blockId="2.[154,1111,1325,1732]" pageId="2" pageNumber="3176">
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||
<emphasis id="B96E57755636FF8537C3D9861506FA10" box="[194,355,1421,1445]" italics="true" pageId="2" pageNumber="3176">Measurements</emphasis>
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||
(mm, L
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<emphasis id="B96E57755636FF8536DCD987159DFA10" bold="true" box="[477,504,1420,1445]" pageId="2" pageNumber="3176">6</emphasis>
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H).
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<typeStatus id="54A135C55636FF85352AD98616FFFA10" box="[555,666,1421,1445]" pageId="2" pageNumber="3176" type="holotype">Holotype</typeStatus>
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||
: 2.21
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<emphasis id="B96E57755636FF8535E3D9871698FA10" bold="true" box="[738,765,1420,1445]" pageId="2" pageNumber="3176">6</emphasis>
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||
1.65.
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<typeStatus id="54A135C55636FF853448D98617D9FA10" box="[841,956,1421,1445]" pageId="2" pageNumber="3176" type="paratype">Paratypes</typeStatus>
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||
: 2.19
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<emphasis id="B96E57755636FF853304D9871045FA10" bold="true" box="[1029,1056,1420,1445]" pageId="2" pageNumber="3176">6</emphasis>
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||
1.56, 2.58
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||
<emphasis id="B96E57755636FF8537C8D9A71481FA70" bold="true" box="[201,228,1452,1477]" pageId="2" pageNumber="3176">6</emphasis>
|
||
1.72, 2.34
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||
<emphasis id="B96E57755636FF853655D9A7150AFA70" bold="true" box="[340,367,1452,1477]" pageId="2" pageNumber="3176">6</emphasis>
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||
1.54, 1.91
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<emphasis id="B96E57755636FF8536DED9A7159FFA70" bold="true" box="[479,506,1452,1477]" pageId="2" pageNumber="3176">6</emphasis>
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1.30.
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</paragraph>
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<paragraph id="8BA58B675636FF8437C3D9C61039F997" blockId="2.[154,1111,1325,1732]" lastBlockId="3.[159,1116,1376,1570]" lastPageId="3" lastPageNumber="3177" pageId="2" pageNumber="3176">
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<emphasis id="B96E57755636FF8537C3D9C6152CFA50" box="[194,329,1485,1509]" italics="true" pageId="2" pageNumber="3176">Description.</emphasis>
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Shell minute to
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<quantity id="4CE226825636FF853517D9C7161CFA51" box="[534,633,1484,1508]" metricMagnitude="-3" metricUnit="m" metricValue="2.58" pageId="2" pageNumber="3176" unit="mm" value="2.58">2.58 mm</quantity>
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. Equivalve. Inequilateral, beaks close to the anterior margin. Outline wedge-shaped, anterior reduced, posterior greatly expanded; dorsal margin long, straight; posterior margin long, slightly sinuate and angled about 90
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<emphasis id="B96E57755636FF85368FDA2715FDF9F1" bold="true" box="[398,408,1580,1604]" pageId="2" pageNumber="3176">‡</emphasis>
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to dorsal margin; anterior margin small smoothly merging into long, almost straight ventral margin. Sculpture of concentric lamellae that are regularly fluted by weaker radial riblets. Posterior ventral area arched but not carinate; median area flat, no byssal sinus apparent. Hinge plate long, taxodont teeth divided into two sets by distinct edentulous space; up to four anterior teeth and seven posterior teeth; anterior teeth more or less vertical, posterior teeth oblique. Ligament confined to a single chevron at the posterior end of the dorsal plate. Prodissoconch (
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<figureCitation id="132197E25637FF8436F5D989162CFA2F" box="[500,585,1410,1434]" captionStart="FIGS" captionStartId="3.[159,175,1191,1213]" captionTargetBox="[164,1116,173,1147]" captionTargetId="figure-125@3.[159,1116,170,1153]" captionTargetPageId="3" captionText="FIGS. 1–7. (1–5) Acar marsupialis n. sp. (1, 2) Holotype, NMW.Z.2001.061.00004: (1) external (MontageTM); (2) internal (SEM). (3–5) Paratype, NMW.Z.2001.061.00005 (SEM): (3) external; (4) internal; (5) prodissoconch. (6, 7) Acar plicata Rodrigues, NMW.Z.2000.086.00034 (SEM): (6) external left valve; (7) prodissoconch." figureDoi="http://doi.org/10.5281/zenodo.10097789" httpUri="https://zenodo.org/record/10097789/files/figure.png" pageId="3" pageNumber="3177">figure 5</figureCitation>
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) of moderate size, 230
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<emphasis id="B96E57755637FF84345ED989170BFA2F" box="[863,878,1410,1434]" italics="true" pageId="3" pageNumber="3177">M</emphasis>
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m in diameter, apex pronounced, margin weakly rimmed. Adductor scars unequal, anterior about one-third size of posterior; anterior with distinct myophoric flanges, posterior flanges indistinct. Inner margin crenulate. In three valves the posterior ventral area is separated from the remainder of the cavity by a transverse ridge
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</paragraph>
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<caption id="DF65DBEF5637FF84379ED8AC178AFAB8" ID-DOI="http://doi.org/10.5281/zenodo.10097789" ID-Zenodo-Dep="10097789" httpUri="https://zenodo.org/record/10097789/files/figure.png" pageId="3" pageNumber="3177" startId="3.[159,175,1191,1213]" targetBox="[164,1116,173,1147]" targetPageId="3">
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||
<paragraph id="8BA58B675637FF84379ED8AC178AFAB8" blockId="3.[159,1116,1191,1293]" pageId="3" pageNumber="3177">
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||
FIGS. 1–7. (1–5)
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||
<taxonomicName id="4C1AF0E45637FF84365CD8A3166BFB08" authorityName="P. G. Oliver & Holmes" authorityYear="2004" box="[349,526,1192,1213]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="3" pageNumber="3177" phylum="Mollusca" rank="species" species="marsupialis" status="sp. nov.">
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||
<emphasis id="B96E57755637FF84365CD8A3166BFB08" box="[349,526,1192,1213]" italics="true" pageId="3" pageNumber="3177">Acar marsupialis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A25DEA0E5637FF84351CD8AC163BFB08" box="[541,606,1191,1213]" pageId="3" pageNumber="3177" rank="species">n. sp.</taxonomicNameLabel>
|
||
(1, 2) Holotype, NMW.Z.2001.061.00004: (1) external (Montage
|
||
<superScript id="7C6F262F5637FF8436A7D8B615A1FB7E" attach="right" box="[422,452,1213,1227]" fontSize="6" pageId="3" pageNumber="3177">TM</superScript>
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); (2) internal (SEM). (3–5) Paratype, NMW.Z.2001.061.00005 (SEM): (3) external; (4) internal; (5) prodissoconch. (6, 7)
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<taxonomicName id="4C1AF0E45637FF843460D8D61785FB47" baseAuthorityName="Dillwyn" baseAuthorityYear="1817" box="[865,992,1245,1266]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="3" pageNumber="3177" phylum="Mollusca" rank="species" species="plicata">
|
||
<emphasis id="B96E57755637FF843460D8D61785FB47" box="[865,992,1245,1266]" italics="true" pageId="3" pageNumber="3177">Acar plicata</emphasis>
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</taxonomicName>
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||
Rodrigues, NMW.Z.2000.086.00034 (SEM): (6) external left valve; (7) prodissoconch.
|
||
</paragraph>
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</caption>
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<paragraph id="8BA58B675637FF84379EDA261595F9F0" blockId="3.[159,1116,1581,1733]" box="[159,496,1581,1605]" pageId="3" pageNumber="3177">
|
||
(
|
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<figureCitation id="132197E25637FF8437A6DA261498F9F0" box="[167,253,1581,1605]" captionStart="FIGS" captionStartId="3.[159,175,1191,1213]" captionTargetBox="[164,1116,173,1147]" captionTargetId="figure-125@3.[159,1116,170,1153]" captionTargetPageId="3" captionText="FIGS. 1–7. (1–5) Acar marsupialis n. sp. (1, 2) Holotype, NMW.Z.2001.061.00004: (1) external (MontageTM); (2) internal (SEM). (3–5) Paratype, NMW.Z.2001.061.00005 (SEM): (3) external; (4) internal; (5) prodissoconch. (6, 7) Acar plicata Rodrigues, NMW.Z.2000.086.00034 (SEM): (6) external left valve; (7) prodissoconch." figureDoi="http://doi.org/10.5281/zenodo.10097789" httpUri="https://zenodo.org/record/10097789/files/figure.png" pageId="3" pageNumber="3177">figure 2</figureCitation>
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). Shell colour white.
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</paragraph>
|
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<paragraph id="8BA58B675637FF8437C6DA461539F931" blockId="3.[159,1116,1581,1733]" pageId="3" pageNumber="3177">
|
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<emphasis id="B96E57755637FF8437C6DA4615CAF9D0" box="[199,431,1613,1637]" italics="true" pageId="3" pageNumber="3177">Derivation of name.</emphasis>
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Latin
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<emphasis id="B96E57755637FF843506DA4616E4F9D0" box="[519,641,1613,1637]" italics="true" pageId="3" pageNumber="3177">marsupium</emphasis>
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‘a pouch’, referring to the inner partitioned chamber.
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</paragraph>
|
||
<paragraph id="8BA58B675637FF8337C6DA861612FD93" blockId="3.[159,1116,1581,1733]" lastBlockId="4.[154,1111,173,805]" lastPageId="4" lastPageNumber="3178" pageId="3" pageNumber="3177">
|
||
<emphasis id="B96E57755637FF8437C6DA86153AF910" box="[199,351,1677,1701]" italics="true" pageId="3" pageNumber="3177">Comparisons.</emphasis>
|
||
The genus
|
||
<taxonomicName id="4C1AF0E45637FF8436F3DA86164DF910" authorityName="Gray" authorityYear="1857" box="[498,552,1677,1701]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="3" pageNumber="3177" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B96E57755637FF8436F3DA86164DF910" box="[498,552,1677,1701]" italics="true" pageId="3" pageNumber="3177">Acar</emphasis>
|
||
</taxonomicName>
|
||
in the Indo-Pacific is primarily represented by the widespread, common but variable
|
||
<taxonomicName id="4C1AF0E45637FF84356ADAA617DFF971" authority="(Dillwyn, 1817)" baseAuthorityName="Dillwyn" baseAuthorityYear="1817" box="[619,954,1708,1733]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="3" pageNumber="3177" phylum="Mollusca" rank="species" species="plicata">
|
||
<emphasis id="B96E57755637FF84356ADAA6169DF970" box="[619,760,1709,1733]" italics="true" pageId="3" pageNumber="3177">Acar plicata</emphasis>
|
||
(Dillwyn, 1817)
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="132197E25637FF8434CCDAA7102BF971" box="[973,1102,1708,1732]" captionStart="FIGS" captionStartId="3.[159,175,1191,1213]" captionTargetBox="[164,1116,173,1147]" captionTargetId="figure-125@3.[159,1116,170,1153]" captionTargetPageId="3" captionText="FIGS. 1–7. (1–5) Acar marsupialis n. sp. (1, 2) Holotype, NMW.Z.2001.061.00004: (1) external (MontageTM); (2) internal (SEM). (3–5) Paratype, NMW.Z.2001.061.00005 (SEM): (3) external; (4) internal; (5) prodissoconch. (6, 7) Acar plicata Rodrigues, NMW.Z.2000.086.00034 (SEM): (6) external left valve; (7) prodissoconch." figureDoi="http://doi.org/10.5281/zenodo.10097789" httpUri="https://zenodo.org/record/10097789/files/figure.png" pageId="3" pageNumber="3177">figures 6, 7</figureCitation>
|
||
). Other species from the western Indian Ocean have been separated, most conclusively, by characters of the prodissoconch, e.g.
|
||
<taxonomicName id="4C1AF0E45630FF8335CDDCC5179EFF50" authority="Kilburn, 1983" authorityName="Kilburn" authorityYear="1983" box="[716,1019,205,230]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="species" species="petasion">
|
||
<emphasis id="B96E57755630FF8335CDDCC51728FF53" box="[716,845,206,230]" italics="true" pageId="4" pageNumber="3178">A. petasion</emphasis>
|
||
<bibRefCitation id="EF8BF6965630FF833459DCC6179EFF50" author="Kilburn" box="[856,1019,205,229]" firstAuthor="Kilburn" pageId="4" pageNumber="3178" pagination="511 - 548" refId="ref19976" refString="KILBURN, R. N., 1983, The Recent Arcidae (Mollusca: Bivalvia) of southern Africa and Mozambique, Annals of the Natal Museum, 25 (2), 511 - 548." type="journal article" year="1983">Kilburn, 1983</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1AF0E45630FF83333DDCC5167AFEB0" authority="Oliver and Chesney, 1994" authorityName="Oliver and Chesney" authorityYear="1994" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="species" species="abdita">
|
||
<emphasis id="B96E57755630FF83333DDCC514BAFEB3" italics="true" pageId="4" pageNumber="3178">A. abdita</emphasis>
|
||
<bibRefCitation id="EF8BF6965630FF8337EADCE6167AFEB0" author="Oliver and Chesney" box="[235,543,237,261]" firstAuthor="Oliver" pageId="4" pageNumber="3178" pagination="17 - 31" refId="ref20411" refString="OLIVER, P. G. and CHESNEY, H. C. G., 1994, Taxonomy of Arabian bivalves Part 1: Arcoidea, Journal of Conchology, 35, 17 - 31." type="journal article" year="1994">Oliver and Chesney, 1994</bibRefCitation>
|
||
</taxonomicName>
|
||
.
|
||
<taxonomicName id="4C1AF0E45630FF83352FDCE516AEFEB3" authorityName="Kilburn" authorityYear="1983" box="[558,715,238,262]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="species" species="petasion">
|
||
<emphasis id="B96E57755630FF83352FDCE516AEFEB3" box="[558,715,238,262]" italics="true" pageId="4" pageNumber="3178">Acar petasion</emphasis>
|
||
</taxonomicName>
|
||
has a large, 480
|
||
<emphasis id="B96E57755630FF83349BDCE517CCFEB3" box="[922,937,238,262]" italics="true" pageId="4" pageNumber="3178">M</emphasis>
|
||
m in diameter, collared and peaked prodissoconch (
|
||
<bibRefCitation id="EF8BF6965630FF833551DD06169CFE90" author="Kilburn" box="[592,761,269,293]" firstAuthor="Kilburn" pageId="4" pageNumber="3178" pagination="511 - 548" refId="ref19976" refString="KILBURN, R. N., 1983, The Recent Arcidae (Mollusca: Bivalvia) of southern Africa and Mozambique, Annals of the Natal Museum, 25 (2), 511 - 548." type="journal article" year="1983">Kilburn, 1983</bibRefCitation>
|
||
). The prodissoconch of
|
||
<taxonomicName id="4C1AF0E45630FF833321DD05157DFEF3" authorityName="P. G. Oliver & Holmes" authorityYear="2004" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="species" species="marsupialis">
|
||
<emphasis id="B96E57755630FF833321DD05157DFEF3" italics="true" pageId="4" pageNumber="3178">Acar marsupialis</emphasis>
|
||
</taxonomicName>
|
||
is not very large (
|
||
<figureCitation id="132197E25630FF8336F9DD261628FEF0" box="[504,589,301,325]" captionStart="FIGS" captionStartId="3.[159,175,1191,1213]" captionTargetBox="[164,1116,173,1147]" captionTargetId="figure-125@3.[159,1116,170,1153]" captionTargetPageId="3" captionText="FIGS. 1–7. (1–5) Acar marsupialis n. sp. (1, 2) Holotype, NMW.Z.2001.061.00004: (1) external (MontageTM); (2) internal (SEM). (3–5) Paratype, NMW.Z.2001.061.00005 (SEM): (3) external; (4) internal; (5) prodissoconch. (6, 7) Acar plicata Rodrigues, NMW.Z.2000.086.00034 (SEM): (6) external left valve; (7) prodissoconch." figureDoi="http://doi.org/10.5281/zenodo.10097789" httpUri="https://zenodo.org/record/10097789/files/figure.png" pageId="4" pageNumber="3178">figure 5</figureCitation>
|
||
) but the apex is pronounced and there is a weak rim that is distinct from that of
|
||
<taxonomicName id="4C1AF0E45630FF83356BDD4516B9FED3" baseAuthorityName="Dillwyn" baseAuthorityYear="1817" box="[618,732,334,358]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="species" species="plicata">
|
||
<emphasis id="B96E57755630FF83356BDD4516B9FED3" box="[618,732,334,358]" italics="true" pageId="4" pageNumber="3178">A. plicata</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="132197E25630FF8335EFDD461720FED0" box="[750,837,333,357]" captionStart="FIGS" captionStartId="3.[159,175,1191,1213]" captionTargetBox="[164,1116,173,1147]" captionTargetId="figure-125@3.[159,1116,170,1153]" captionTargetPageId="3" captionText="FIGS. 1–7. (1–5) Acar marsupialis n. sp. (1, 2) Holotype, NMW.Z.2001.061.00004: (1) external (MontageTM); (2) internal (SEM). (3–5) Paratype, NMW.Z.2001.061.00005 (SEM): (3) external; (4) internal; (5) prodissoconch. (6, 7) Acar plicata Rodrigues, NMW.Z.2000.086.00034 (SEM): (6) external left valve; (7) prodissoconch." figureDoi="http://doi.org/10.5281/zenodo.10097789" httpUri="https://zenodo.org/record/10097789/files/figure.png" pageId="4" pageNumber="3178">figure 7</figureCitation>
|
||
). The dimpled apex of the prodissoconch of
|
||
<taxonomicName id="4C1AF0E45630FF83369EDD651674FE33" baseAuthorityName="Dillwyn" baseAuthorityYear="1817" box="[415,529,366,390]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="species" species="plicata">
|
||
<emphasis id="B96E57755630FF83369EDD651674FE33" box="[415,529,366,390]" italics="true" pageId="4" pageNumber="3178">A. plicata</emphasis>
|
||
</taxonomicName>
|
||
shown here does not agree with that illustrated by
|
||
<bibRefCitation id="EF8BF6965630FF8337C4DD861513FE10" author="Kilburn" box="[197,374,397,421]" firstAuthor="Kilburn" pageId="4" pageNumber="3178" pagination="511 - 548" refId="ref19976" refString="KILBURN, R. N., 1983, The Recent Arcidae (Mollusca: Bivalvia) of southern Africa and Mozambique, Annals of the Natal Museum, 25 (2), 511 - 548." type="journal article" year="1983">Kilburn (1983)</bibRefCitation>
|
||
and we assume this is due to the different angles of view used. If the South African
|
||
<taxonomicName id="4C1AF0E45630FF8336EADDA5163BFE73" baseAuthorityName="Dillwyn" baseAuthorityYear="1817" box="[491,606,430,454]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="species" species="plicata">
|
||
<emphasis id="B96E57755630FF8336EADDA5163BFE73" box="[491,606,430,454]" italics="true" pageId="4" pageNumber="3178">A. plicata</emphasis>
|
||
</taxonomicName>
|
||
does truly have a domed apex then this suggests that
|
||
<taxonomicName id="4C1AF0E45630FF83363EDDC515D7FE53" baseAuthorityName="Dillwyn" baseAuthorityYear="1817" box="[319,434,462,486]" class="Bivalvia" family="Arcidae" genus="Acar" kingdom="Animalia" order="Arcida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="species" species="plicata">
|
||
<emphasis id="B96E57755630FF83363EDDC515D7FE53" box="[319,434,462,486]" italics="true" pageId="4" pageNumber="3178">A. plicata</emphasis>
|
||
</taxonomicName>
|
||
may comprise a complex of species. The wedge-shaped outline is unlike that of the other mentioned species, and additionally the inner partition is so far unique to this species.
|
||
</paragraph>
|
||
<paragraph id="8BA58B675630FF8337C3DE2517E9FC90" blockId="4.[154,1111,173,805]" pageId="4" pageNumber="3178">
|
||
<emphasis id="B96E57755630FF8337C3DE251548FDF3" box="[194,301,558,582]" italics="true" pageId="4" pageNumber="3178">Remarks.</emphasis>
|
||
The internal partition observed in some valves is interpreted here to form a marsupial chamber for the brooding of larvae. Its presence in only some shells suggests that this may be a sex-related feature appearing only in females. These structures are relatively rare in bivalves with the best documented cases being those of
|
||
<taxonomicName id="4C1AF0E45630FF8336A9DEA51662FD73" authorityName="H. Adams & A. Adams" authorityYear="1857" box="[424,519,686,710]" class="Bivalvia" family="Carditidae" genus="Thecalia" kingdom="Animalia" order="Carditida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B96E57755630FF8336A9DEA51662FD73" box="[424,519,686,710]" italics="true" pageId="4" pageNumber="3178">Thecalia</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1AF0E45630FF833552DEA516D6FD73" authorityName="Dall" authorityYear="1881" box="[595,691,686,710]" class="Bivalvia" family="Carditidae" genus="Milneria" kingdom="Animalia" order="Carditida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B96E57755630FF833552DEA516D6FD73" box="[595,691,686,710]" italics="true" pageId="4" pageNumber="3178">Milneria</emphasis>
|
||
</taxonomicName>
|
||
[Carditoidea:
|
||
<taxonomicName id="4C1AF0E45630FF83346ADEA61781FD70" authorityName="Ferussac" authorityYear="1822" box="[875,996,685,709]" class="Bivalvia" family="Carditidae" kingdom="Animalia" order="Carditida" pageId="4" pageNumber="3178" phylum="Mollusca" rank="family">Carditidae</taxonomicName>
|
||
] (
|
||
<bibRefCitation id="EF8BF6965630FF833302DEA614B7FD50" author="Yonge" firstAuthor="Yonge" pageId="4" pageNumber="3178" pagination="493 - 528" refId="ref21004" refString="YONGE, C. M., 1969, Functional morphology and evolution within the Carditacea (Bivalvia), Proceedings of the Malacological Society of London, 38 (6), 493 - 528." type="journal article" year="1969">Yonge, 1969</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EF8BF6965630FF8337E2DEC615D2FD50" author="Coan" box="[227,439,717,742]" etAl="et al." firstAuthor="Coan" pageId="4" pageNumber="3178" refId="ref19581" refString="COAN, E. V., SCOTT, P. V. and BERNARD, F. R., 2000, Bivalve Seashells of Western North America, Marine Bivalve Mollusks from Arctic Alaska to Baja California (Santa Barbara, CA: Santa Barbara Museum of Natural History), 764 pp." type="book" year="2000">
|
||
Coan
|
||
<emphasis id="B96E57755630FF83362CDEC51507FD53" box="[301,354,718,742]" italics="true" pageId="4" pageNumber="3178">et al</emphasis>
|
||
., 2000
|
||
</bibRefCitation>
|
||
). We have considered that the partition could represent shell repair or be the result of parasitism but the partition is identical in form and position which suggests that it has not formed accidentally.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |