354 lines
40 KiB
XML
354 lines
40 KiB
XML
<document id="0ADA246634C4876B0FA1FE746EBDA48D" ID-DOI="10.5281/zenodo.181996" ID-GBIF-Dataset="3a5c236f-b6ba-42e7-b352-a5f0cec6f49a" ID-ISSN="1175-5326" ID-Zenodo-Dep="181996" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1459846556271" checkinUser="plazi" docAuthor="Leal, Jos Ẽ H." docDate="2008" docId="081987A1A217BB5FFF5DDF0CFD808D5C" docLanguage="en" docName="zt01764p018.pdf" docOrigin="Zootaxa 1764" docStyle="DocumentStyle:6581673A57F01A3145754A1E615EDFF0.4:Zootaxa.2007-2008.journal_article" docStyleId="6581673A57F01A3145754A1E615EDFF0" docStyleName="Zootaxa.2007-2008.journal_article" docStyleVersion="4" docTitle="Dilemma inexpectatum Crozier 1966, new combination" docType="treatment" docVersion="7" lastPageNumber="15" masterDocId="F420FFD9A21CBB51FFCADA13FFFA8E55" masterDocTitle="A remarkable new genus of carnivorous, sessile bivalves (Mollusca: Anomalodesmata: Poromyidae) with descriptions of two new species" masterLastPageNumber="18" masterPageNumber="1" pageNumber="12" updateTime="1698224916715" updateUser="plazi">
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<mods:titleInfo id="C1707C1A712D0D2F40E796773C65937F">
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<mods:title id="79BC86D2B91051ACCB62423ED87BC86F">A remarkable new genus of carnivorous, sessile bivalves (Mollusca: Anomalodesmata: Poromyidae) with descriptions of two new species</mods:title>
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<mods:name id="7A31AF2D942E078DD730A350D8D16D2A" type="personal">
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<mods:namePart id="A0EA9F13283A3CF01BE25816FD33C61C">Leal, Jos Ẽ H.</mods:namePart>
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<mods:typeOfResource id="20F9872E22300AA7AEF3F2CC8167E6A2">text</mods:typeOfResource>
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<mods:title id="D77189BE524FC87089E738E07011B394">Zootaxa</mods:title>
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<mods:part id="8E55F4820829D503C02926CE5FE05465">
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<mods:date id="031A9212E246BE2B836824447F5FB0AF">2008</mods:date>
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<mods:detail id="E0864FEF670E679E345A184494297F00" type="volume">
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<mods:number id="1ABEFD0B0310DA7D49EAE3B7A7DDCDCE">1764</mods:number>
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<mods:start id="475AAB36CCBE1DB0A2E4F7AB57E0A5C9">1</mods:start>
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<mods:end id="EF686AD9D8B462DF64A26763F432EEBA">18</mods:end>
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<mods:classification id="DA8DB09CC3227D385A01B919582AAE8E">journal article</mods:classification>
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<mods:identifier id="76AE41AC084F179500339208542BE06A" type="DOI">10.5281/zenodo.181996</mods:identifier>
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<mods:identifier id="A9C8C36524F4DC6C2C86002BA611E106" type="GBIF-Dataset">3a5c236f-b6ba-42e7-b352-a5f0cec6f49a</mods:identifier>
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<mods:identifier id="F90E438EF5EB7D84F741CC1F46178B21" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="D750E5CB8EF2FC37ABD7F65A6CDF621D" type="Zenodo-Dep">181996</mods:identifier>
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</mods:mods>
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<treatment id="081987A1A217BB5FFF5DDF0CFD808D5C" ID-DOI="http://doi.org/10.5281/zenodo.6228967" ID-GBIF-Taxon="119361604" ID-Zenodo-Dep="6228967" LSID="urn:lsid:plazi:treatment:081987A1A217BB5FFF5DDF0CFD808D5C" httpUri="http://treatment.plazi.org/id/081987A1A217BB5FFF5DDF0CFD808D5C" lastPageId="14" lastPageNumber="15" pageId="11" pageNumber="12">
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<subSubSection id="C8AA653CA217BB5AFF5DDF0CFEA88B09" pageId="11" pageNumber="12" type="nomenclature">
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||
<paragraph id="800F36B7A217BB5AFF5DDF0CFCB78B6C" blockId="11.[151,845,1311,1372]" box="[151,845,1311,1337]" pageId="11" pageNumber="12">
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||
<heading id="DB4781DBA217BB5AFF5DDF0CFCB78B6C" bold="true" box="[151,845,1311,1337]" fontSize="11" level="1" pageId="11" pageNumber="12" reason="1">
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||
<emphasis id="B2C4EAA5A217BB5AFF5DDF0CFCB78B6C" bold="true" box="[151,845,1311,1337]" pageId="11" pageNumber="12">
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<taxonomicName id="47B04D34A217BB5AFF5DDF0CFD8A8B6C" ID-CoL="365B2" authority="Crozier, 1966" authorityName="Crozier" authorityYear="1966" box="[151,624,1311,1337]" class="Bivalvia" family="Poromyidae" genus="Dilemma" kingdom="Animalia" order="Anomalodesmata" pageId="11" pageNumber="12" phylum="Mollusca" rank="species" species="inexpectatum" status="comb. nov.">
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<emphasis id="B2C4EAA5A217BB5AFF5DDF0CFE558B6C" bold="true" box="[151,431,1311,1337]" italics="true" pageId="11" pageNumber="12">Dilemma inexpectatum</emphasis>
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||
(
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||
<bibRefCitation id="E4214B46A217BB5AFE74DF0CFD928B6C" author="Crozier" box="[446,616,1311,1337]" pageId="11" pageNumber="17" refString="Crozier, M. A. (1966) New species and records of Mollusca from off Three Kings Islands, New Zealand. Transactions of the Royal Society of New Zealand, Zoology, 8, 39 - 49." type="journal article" year="1966">Crozier, 1966</bibRefCitation>
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)
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||
</taxonomicName>
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<taxonomicNameLabel id="A9F757DEA217BB5AFDBDDF0CFCB78B6C" box="[631,845,1311,1337]" pageId="11" pageNumber="12">new combination</taxonomicNameLabel>
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</emphasis>
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||
</heading>
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||
</paragraph>
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<paragraph id="800F36B7A217BB5AFF5DDF51FEA88B09" blockId="11.[151,845,1311,1372]" box="[151,338,1346,1372]" pageId="11" pageNumber="12">
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||
(
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<figureCitation id="188B2A32A217BB5AFF55DF51FEB08B09" box="[159,330,1346,1372]" captionStart="FIGURES 34 – 45" captionStartId="10.[151,269,1691,1715]" captionTargetBox="[151,1436,181,1659]" captionTargetId="figure@10.[151,1436,160,1661]" captionTargetPageId="10" captionText="FIGURES 34 – 45. Dilemma species. 34 – 40. Dilemma spectralis. Holotype, MNHN 20818, whole specimen and shell views. 34 – 35. Whole specimen. 34. Posterior. 35. Anterior. Left valve is broken adjacent to byssal gape. 36. Right and left valves, lateral. 37. Ligament in posterodorsal view. 38. Detail of posteroventral shell surface showing periostracum with spicules. 39. Detail of anteroventral shell surface showing periostracum with worn spicules. 40. Right valve, ventral view of internal surface showing hinge. Scale bars: Figures 34 – 36 = 5 mm; Figures 37 – 40 = 1 mm. 41 – 45. Dilemma inexpectatum (Crozier, 1966). Holotype, NMNZ M. 018488, left valve. 41 – 44. Valve views, from left to right: posterior, internal lateral, anterior, external lateral. 45. Detail showing cardinal-like tooth. Scale bars: Figures 41 – 44 = 5 mm; Figure 45 = 1 mm. Abbreviations: AAS = scar of anterior adductor muscle; BG = byssal gap; BGA = byssal gape (in mantle of broken shell); CT = cardinal-like tooth; ES = escutcheon; HS = hinge socket; IL = inner ligament layer; OL = outer ligament layer; SM = shell margin. Figures 41? 44 courtesy Bruce Marshall, copyright Museum of New Zealand Te Papa Tongarewa." httpUri="https://zenodo.org/record/182001/files/figure.png" pageId="11" pageNumber="12">Figures 41–45</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="C8AA653CA217BB5AFF5DDF87FACB8BFE" box="[151,1329,1426,1452]" pageId="11" pageNumber="12" type="reference_group">
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<paragraph id="800F36B7A217BB5AFF5DDF87FACB8BFE" blockId="11.[151,1329,1426,1452]" box="[151,1329,1426,1452]" pageId="11" pageNumber="12">
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<taxonomicName id="47B04D34A217BB5AFF5DDF87FDCA8BFE" authority="Crozier, 1966" authorityName="Crozier" authorityYear="1966" box="[151,560,1428,1451]" class="Bivalvia" family="Cardiidae" genus="Corculum" kingdom="Animalia" order="Veneroida" pageId="11" pageNumber="12" phylum="Mollusca" rank="species" species="inexpectatum">
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<emphasis id="B2C4EAA5A217BB5AFF5DDF87FE6F8BFE" box="[151,405,1428,1451]" italics="true" pageId="11" pageNumber="12">Corculum inexpectatum</emphasis>
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<bibRefCitation id="E4214B46A217BB5AFE56DF87FDCA8BFE" author="Crozier" box="[412,560,1428,1451]" pageId="11" pageNumber="17" refString="Crozier, M. A. (1966) New species and records of Mollusca from off Three Kings Islands, New Zealand. Transactions of the Royal Society of New Zealand, Zoology, 8, 39 - 49." type="journal article" year="1966">Crozier, 1966</bibRefCitation>
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</taxonomicName>
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, p. 42, figs. 10–12;
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<bibRefCitation id="E4214B46A217BB5AFCCFDF87FC6E8BFE" author="Powell" box="[773,916,1428,1451]" pageId="11" pageNumber="17" refString="Powell, A. W. B. (1979) New Zealand Mollusca, Marine, Land and Freshwater Shells. Collin, Auckland, xiii + 500 pp." type="book" year="1979">Powell, 1979</bibRefCitation>
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, p. 413, fig. 109; ter
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<bibRefCitation id="E4214B46A217BB5AFBB8DF87FB028BFE" author="Porter" box="[1138,1272,1428,1451]" pageId="11" pageNumber="18" refString="ter Porter, J. J. (2005) Outline of a systematic index - Recent Cardiidae (Lamark [sic], 1809). Visaya Net, February 2005, 1 - 12." type="journal article" year="2005">Porter, 2005</bibRefCitation>
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, p. 6.
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</paragraph>
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</subSubSection>
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<subSubSection id="C8AA653CA217BB5AFF5DDFCEFD228812" pageId="11" pageNumber="12" type="diagnosis">
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<paragraph id="800F36B7A217BB5AFF5DDFCEFD228812" blockId="11.[151,1437,1501,1967]" pageId="11" pageNumber="12">
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<emphasis id="B2C4EAA5A217BB5AFF5DDFCEFEED8BA2" bold="true" box="[151,279,1501,1527]" pageId="11" pageNumber="12">Diagnosis.</emphasis>
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Shell with sculpture of strong, regular commarginal grooves on posterior surface, with interspaces twice as wide. Byssal gap absent. Escutcheon relatively large, smooth, well-defined, separated by prominent groove from remainder of posterior shell surface.
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</paragraph>
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</subSubSection>
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<subSubSection id="C8AA653CA217BB5FFF0CDC46FA9E8F57" lastPageId="14" lastPageNumber="15" pageId="11" pageNumber="12" type="description">
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<paragraph id="800F36B7A217BB5AFF0CDC46FA978962" blockId="11.[151,1437,1501,1967]" pageId="11" pageNumber="12">
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<emphasis id="B2C4EAA5A217BB5AFF0CDC46FCCB883A" bold="true" box="[198,817,1621,1647]" pageId="11" pageNumber="12">
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Description (based on
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<typeStatus id="5F0B8815A217BB5AFE14DC46FDB1883A" box="[478,587,1621,1647]" pageId="11" pageNumber="12" type="holotype">holotype</typeStatus>
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, a left shell valve).
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</emphasis>
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SHELL (
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<figureCitation id="188B2A32A217BB5AFC5FDC46FBBF883A" box="[917,1093,1621,1647]" captionStart="FIGURES 34 – 45" captionStartId="10.[151,269,1691,1715]" captionTargetBox="[151,1436,181,1659]" captionTargetId="figure@10.[151,1436,160,1661]" captionTargetPageId="10" captionText="FIGURES 34 – 45. Dilemma species. 34 – 40. Dilemma spectralis. Holotype, MNHN 20818, whole specimen and shell views. 34 – 35. Whole specimen. 34. Posterior. 35. Anterior. Left valve is broken adjacent to byssal gape. 36. Right and left valves, lateral. 37. Ligament in posterodorsal view. 38. Detail of posteroventral shell surface showing periostracum with spicules. 39. Detail of anteroventral shell surface showing periostracum with worn spicules. 40. Right valve, ventral view of internal surface showing hinge. Scale bars: Figures 34 – 36 = 5 mm; Figures 37 – 40 = 1 mm. 41 – 45. Dilemma inexpectatum (Crozier, 1966). Holotype, NMNZ M. 018488, left valve. 41 – 44. Valve views, from left to right: posterior, internal lateral, anterior, external lateral. 45. Detail showing cardinal-like tooth. Scale bars: Figures 41 – 44 = 5 mm; Figure 45 = 1 mm. Abbreviations: AAS = scar of anterior adductor muscle; BG = byssal gap; BGA = byssal gape (in mantle of broken shell); CT = cardinal-like tooth; ES = escutcheon; HS = hinge socket; IL = inner ligament layer; OL = outer ligament layer; SM = shell margin. Figures 41? 44 courtesy Bruce Marshall, copyright Museum of New Zealand Te Papa Tongarewa." httpUri="https://zenodo.org/record/182001/files/figure.png" pageId="11" pageNumber="12">Figures 41–45</figureCitation>
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): Sculpture of strong, regular commarginal grooves on posterior surface, with interspaces at least twice as wide. Anterior shell surface smoother, with worn aspect and commarginal growth lines that often coincide with grooves on posterior surface. Shell apparently nacreous internally, relatively thick, compressed in anteroposterior direction, cardioid in lateral outline (assuming that right valve is symmetrical with left). Byssal gap absent. Well-developed carina separating anterior from posterior shell surfaces. Umbones and umbonal cavity as in previous species.
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</paragraph>
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<paragraph id="800F36B7A217BB5AFF0FDD56FEC589FA" blockId="11.[151,1437,1501,1967]" pageId="11" pageNumber="12">
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Umbones, umbonal cavity, hinge, cardinal-like teeth (
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<figureCitation id="188B2A32A217BB5AFCF6DD56FC10890A" box="[828,1002,1861,1887]" captionStart="FIGURES 34 – 45" captionStartId="10.[151,269,1691,1715]" captionTargetBox="[151,1436,181,1659]" captionTargetId="figure@10.[151,1436,160,1661]" captionTargetPageId="10" captionText="FIGURES 34 – 45. Dilemma species. 34 – 40. Dilemma spectralis. Holotype, MNHN 20818, whole specimen and shell views. 34 – 35. Whole specimen. 34. Posterior. 35. Anterior. Left valve is broken adjacent to byssal gape. 36. Right and left valves, lateral. 37. Ligament in posterodorsal view. 38. Detail of posteroventral shell surface showing periostracum with spicules. 39. Detail of anteroventral shell surface showing periostracum with worn spicules. 40. Right valve, ventral view of internal surface showing hinge. Scale bars: Figures 34 – 36 = 5 mm; Figures 37 – 40 = 1 mm. 41 – 45. Dilemma inexpectatum (Crozier, 1966). Holotype, NMNZ M. 018488, left valve. 41 – 44. Valve views, from left to right: posterior, internal lateral, anterior, external lateral. 45. Detail showing cardinal-like tooth. Scale bars: Figures 41 – 44 = 5 mm; Figure 45 = 1 mm. Abbreviations: AAS = scar of anterior adductor muscle; BG = byssal gap; BGA = byssal gape (in mantle of broken shell); CT = cardinal-like tooth; ES = escutcheon; HS = hinge socket; IL = inner ligament layer; OL = outer ligament layer; SM = shell margin. Figures 41? 44 courtesy Bruce Marshall, copyright Museum of New Zealand Te Papa Tongarewa." httpUri="https://zenodo.org/record/182001/files/figure.png" pageId="11" pageNumber="12">Figures 40, 45</figureCitation>
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, CT), hinge sockets (
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<figureCitation id="188B2A32A217BB5AFB29DD56FAA3890A" box="[1251,1369,1861,1887]" captionStart="FIGURES 34 – 45" captionStartId="10.[151,269,1691,1715]" captionTargetBox="[151,1436,181,1659]" captionTargetId="figure@10.[151,1436,160,1661]" captionTargetPageId="10" captionText="FIGURES 34 – 45. Dilemma species. 34 – 40. Dilemma spectralis. Holotype, MNHN 20818, whole specimen and shell views. 34 – 35. Whole specimen. 34. Posterior. 35. Anterior. Left valve is broken adjacent to byssal gape. 36. Right and left valves, lateral. 37. Ligament in posterodorsal view. 38. Detail of posteroventral shell surface showing periostracum with spicules. 39. Detail of anteroventral shell surface showing periostracum with worn spicules. 40. Right valve, ventral view of internal surface showing hinge. Scale bars: Figures 34 – 36 = 5 mm; Figures 37 – 40 = 1 mm. 41 – 45. Dilemma inexpectatum (Crozier, 1966). Holotype, NMNZ M. 018488, left valve. 41 – 44. Valve views, from left to right: posterior, internal lateral, anterior, external lateral. 45. Detail showing cardinal-like tooth. Scale bars: Figures 41 – 44 = 5 mm; Figure 45 = 1 mm. Abbreviations: AAS = scar of anterior adductor muscle; BG = byssal gap; BGA = byssal gape (in mantle of broken shell); CT = cardinal-like tooth; ES = escutcheon; HS = hinge socket; IL = inner ligament layer; OL = outer ligament layer; SM = shell margin. Figures 41? 44 courtesy Bruce Marshall, copyright Museum of New Zealand Te Papa Tongarewa." httpUri="https://zenodo.org/record/182001/files/figure.png" pageId="11" pageNumber="12">Figure 45</figureCitation>
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, HS), as in previous species. Posterior lateral tooth (present in right valve only) not seen. Ligament lacking in examined
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<typeStatus id="5F0B8815A217BB5AFF1BDD86FEC189FA" box="[209,315,1941,1967]" pageId="11" pageNumber="12" type="holotype">holotype</typeStatus>
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.
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</paragraph>
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<caption id="D4CF663FA210BB5DFF5DDC1CFDA489BC" httpUri="https://zenodo.org/record/182002/files/figure.png" pageId="12" pageNumber="13" targetBox="[151,1436,178,1527]" targetPageId="12">
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<paragraph id="800F36B7A210BB5DFF5DDC1CFDA489BC" blockId="12.[151,1437,1551,2026]" pageId="12" pageNumber="13">
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<emphasis id="B2C4EAA5A210BB5DFF5DDC1CFEA48872" bold="true" box="[151,350,1551,1575]" pageId="12" pageNumber="13">FIGURES 46–53.</emphasis>
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<emphasis id="B2C4EAA5A210BB5DFEACDC03FDC48872" box="[358,574,1552,1575]" italics="true" pageId="12" pageNumber="13">
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<taxonomicName id="47B04D34A210BB5DFEACDC03FDC08872" box="[358,570,1552,1575]" class="Bivalvia" family="Poromyidae" genus="Dilemma" kingdom="Animalia" order="Anomalodesmata" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="spectralis">Dilemma spectralis</taxonomicName>
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.
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</emphasis>
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Holotype, gross anatomy, major organs and anatomical structures.
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<emphasis id="B2C4EAA5A210BB5DFAD9DC1CFACE8872" bold="true" box="[1299,1332,1551,1575]" pageId="12" pageNumber="13">46.</emphasis>
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Posterior view.
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<emphasis id="B2C4EAA5A210BB5DFF10DC21FF01881F" bold="true" box="[218,251,1586,1610]" pageId="12" pageNumber="13">47.</emphasis>
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Anterior view with anterior mantle wall removed.
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<emphasis id="B2C4EAA5A210BB5DFCFDDC21FC7B881F" bold="true" box="[823,897,1586,1610]" pageId="12" pageNumber="13">48–49.</emphasis>
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Left lateral views.
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<emphasis id="B2C4EAA5A210BB5DFB97DC21FB85881F" bold="true" box="[1117,1151,1586,1610]" pageId="12" pageNumber="13">48.</emphasis>
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With part of mantle wall removed.
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<emphasis id="B2C4EAA5A210BB5DFEC8DC47FED98839" bold="true" box="[258,291,1620,1644]" pageId="12" pageNumber="13">49.</emphasis>
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Tilted 30º to allow viewing of fused mantle margins and some septal ostia.
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<emphasis id="B2C4EAA5A210BB5DFB84DC47FB958839" bold="true" box="[1102,1135,1620,1644]" pageId="12" pageNumber="13">50.</emphasis>
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Right lateral view with part of mantle wall removed.
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<emphasis id="B2C4EAA5A210BB5DFE6FDC64FE3C88DA" bold="true" box="[421,454,1655,1679]" pageId="12" pageNumber="13">51.</emphasis>
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Detail of right side of supraseptal chamber showing internal tentacles anterior to excurrent siphons.
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<emphasis id="B2C4EAA5A210BB5DFF32DC89FEE088E7" bold="true" box="[248,282,1690,1714]" pageId="12" pageNumber="13">52.</emphasis>
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Detail of right side of septum around byssal opening showing three groups of septal ostia.
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<emphasis id="B2C4EAA5A210BB5DFADADC89FAC888E7" bold="true" box="[1296,1330,1690,1714]" pageId="12" pageNumber="13">53.</emphasis>
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Detail of mouth area showing labial palps. Note small posterior labial palps and position of foot extremity in relation to mouth. Scale bars: Figure 46 = 3 mm; Figures 51, 52 = 2 mm; Figure 53 = 1 mm. Abbreviations:
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<emphasis id="B2C4EAA5A210BB5DFB81DCCCFB8B88A2" bold="true" box="[1099,1137,1759,1783]" pageId="12" pageNumber="13">AA</emphasis>
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= anterior adductor muscle;
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<emphasis id="B2C4EAA5A210BB5DFF5DDD11FF36894F" bold="true" box="[151,204,1794,1818]" pageId="12" pageNumber="13">ALP</emphasis>
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||
= anterior labial palps;
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<emphasis id="B2C4EAA5A210BB5DFE19DD11FDF0894F" bold="true" box="[467,522,1794,1818]" pageId="12" pageNumber="13">ASO</emphasis>
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= anterior group of septal ostia;
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<emphasis id="B2C4EAA5A210BB5DFCB9DD11FC56894F" bold="true" box="[883,940,1794,1818]" pageId="12" pageNumber="13">BGA</emphasis>
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= byssal gape;
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<emphasis id="B2C4EAA5A210BB5DFB90DD11FB85894F" bold="true" box="[1114,1151,1794,1818]" pageId="12" pageNumber="13">BY</emphasis>
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= byssus;
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<emphasis id="B2C4EAA5A210BB5DFB3FDD11FAE1894F" bold="true" box="[1269,1307,1794,1818]" pageId="12" pageNumber="13">DD</emphasis>
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= digestive diverticula;
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<emphasis id="B2C4EAA5A210BB5DFEDCDD37FECC8969" bold="true" box="[278,310,1828,1852]" pageId="12" pageNumber="13">ES</emphasis>
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= excurrent siphonal opening;
|
||
<emphasis id="B2C4EAA5A210BB5DFD4BDD37FD6B8969" bold="true" box="[641,657,1828,1852]" pageId="12" pageNumber="13">F</emphasis>
|
||
= foot;
|
||
<emphasis id="B2C4EAA5A210BB5DFD2FDD37FCF48969" bold="true" box="[741,782,1828,1852]" pageId="12" pageNumber="13">FM</emphasis>
|
||
= fused mantle margin;
|
||
<emphasis id="B2C4EAA5A210BB5DFBDBDD37FBD18969" bold="true" box="[1041,1067,1828,1852]" pageId="12" pageNumber="13">IS</emphasis>
|
||
= incurrent siphonal opening;
|
||
<emphasis id="B2C4EAA5A210BB5DFAA5DD37FA668969" bold="true" box="[1391,1436,1828,1852]" pageId="12" pageNumber="13">ISC</emphasis>
|
||
= infraseptal chamber;
|
||
<emphasis id="B2C4EAA5A210BB5DFE58DD54FE55890A" bold="true" box="[402,431,1863,1887]" pageId="12" pageNumber="13">IT</emphasis>
|
||
= internal tentacles;
|
||
<emphasis id="B2C4EAA5A210BB5DFD5FDD54FD50890A" bold="true" box="[661,682,1863,1887]" pageId="12" pageNumber="13">K</emphasis>
|
||
= kidney;
|
||
<emphasis id="B2C4EAA5A210BB5DFCEBDD54FCB5890A" bold="true" box="[801,847,1863,1887]" pageId="12" pageNumber="13">MO</emphasis>
|
||
= mouth;
|
||
<emphasis id="B2C4EAA5A210BB5DFC09DD54FBFA890A" bold="true" box="[963,1024,1863,1887]" pageId="12" pageNumber="13">MSO</emphasis>
|
||
= median group of septal ostia;
|
||
<emphasis id="B2C4EAA5A210BB5DFAA9DD54FA79890A" bold="true" box="[1379,1411,1863,1887]" pageId="12" pageNumber="13">PA</emphasis>
|
||
= posterior adductor muscle;
|
||
<emphasis id="B2C4EAA5A210BB5DFE74DD79FE0989D7" bold="true" box="[446,499,1898,1922]" pageId="12" pageNumber="13">PBR</emphasis>
|
||
= posterior byssal retractor muscle;
|
||
<emphasis id="B2C4EAA5A210BB5DFC49DD79FC5F89D7" bold="true" box="[899,933,1898,1922]" pageId="12" pageNumber="13">PE</emphasis>
|
||
= periostracum;
|
||
<emphasis id="B2C4EAA5A210BB5DFBAADD79FB6989D7" bold="true" box="[1120,1171,1898,1922]" pageId="12" pageNumber="13">PLP</emphasis>
|
||
= posterior labial palps;
|
||
<emphasis id="B2C4EAA5A210BB5DFF5DDD9FFF3589F1" bold="true" box="[151,207,1932,1956]" pageId="12" pageNumber="13">PSM</emphasis>
|
||
= posterior septal muscle;
|
||
<emphasis id="B2C4EAA5A210BB5DFE25DD9FFDD989F1" bold="true" box="[495,547,1932,1956]" pageId="12" pageNumber="13">PSO</emphasis>
|
||
= posterior group of septal ostia;
|
||
<emphasis id="B2C4EAA5A210BB5DFC46DD9FFC4E89F1" bold="true" box="[908,948,1932,1956]" pageId="12" pageNumber="13">OV</emphasis>
|
||
= ovary;
|
||
<emphasis id="B2C4EAA5A210BB5DFBD6DD9FFBC789F1" bold="true" box="[1052,1085,1932,1956]" pageId="12" pageNumber="13">SE</emphasis>
|
||
= septum;
|
||
<emphasis id="B2C4EAA5A210BB5DFB7EDD9FFB2C89F1" bold="true" box="[1204,1238,1932,1956]" pageId="12" pageNumber="13">SC</emphasis>
|
||
= incurrent siphonal cowl;
|
||
<emphasis id="B2C4EAA5A210BB5DFECBDDBCFEC88992" bold="true" box="[257,306,1967,1991]" pageId="12" pageNumber="13">SSC</emphasis>
|
||
= supraseptal chamber;
|
||
<emphasis id="B2C4EAA5A210BB5DFDF3DDBCFDA08992" bold="true" box="[569,602,1967,1991]" pageId="12" pageNumber="13">ST</emphasis>
|
||
= stomach (engorged by content, see Figure 57);
|
||
<emphasis id="B2C4EAA5A210BB5DFBBADDBCFB6F8992" bold="true" box="[1136,1173,1967,1991]" pageId="12" pageNumber="13">UT</emphasis>
|
||
= unpaired tentacle;
|
||
<emphasis id="B2C4EAA5A210BB5DFAB2DDBCFA668992" bold="true" box="[1400,1436,1967,1991]" pageId="12" pageNumber="13">TE</emphasis>
|
||
= testis;
|
||
<emphasis id="B2C4EAA5A210BB5DFF3BDDC1FEEC89BF" bold="true" box="[241,278,2002,2026]" pageId="12" pageNumber="13">TN</emphasis>
|
||
= tentacles (on siphonal area).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="800F36B7A211BB5CFF0FDA8BFEE58F57" blockId="13.[151,1436,152,258]" pageId="13" pageNumber="14">
|
||
Anterior adductor muscle scars (
|
||
<figureCitation id="188B2A32A211BB5CFD89DA8BFD408EE7" box="[579,698,152,178]" captionStart="FIGURES 34 – 45" captionStartId="10.[151,269,1691,1715]" captionTargetBox="[151,1436,181,1659]" captionTargetId="figure@10.[151,1436,160,1661]" captionTargetPageId="10" captionText="FIGURES 34 – 45. Dilemma species. 34 – 40. Dilemma spectralis. Holotype, MNHN 20818, whole specimen and shell views. 34 – 35. Whole specimen. 34. Posterior. 35. Anterior. Left valve is broken adjacent to byssal gape. 36. Right and left valves, lateral. 37. Ligament in posterodorsal view. 38. Detail of posteroventral shell surface showing periostracum with spicules. 39. Detail of anteroventral shell surface showing periostracum with worn spicules. 40. Right valve, ventral view of internal surface showing hinge. Scale bars: Figures 34 – 36 = 5 mm; Figures 37 – 40 = 1 mm. 41 – 45. Dilemma inexpectatum (Crozier, 1966). Holotype, NMNZ M. 018488, left valve. 41 – 44. Valve views, from left to right: posterior, internal lateral, anterior, external lateral. 45. Detail showing cardinal-like tooth. Scale bars: Figures 41 – 44 = 5 mm; Figure 45 = 1 mm. Abbreviations: AAS = scar of anterior adductor muscle; BG = byssal gap; BGA = byssal gape (in mantle of broken shell); CT = cardinal-like tooth; ES = escutcheon; HS = hinge socket; IL = inner ligament layer; OL = outer ligament layer; SM = shell margin. Figures 41? 44 courtesy Bruce Marshall, copyright Museum of New Zealand Te Papa Tongarewa." httpUri="https://zenodo.org/record/182001/files/figure.png" pageId="13" pageNumber="14">Figure 45</figureCitation>
|
||
, AAS), posterior adductor muscle scars as in previous species. Anterior and posterior byssal retractor scars difficult to examine due to worn nature of
|
||
<typeStatus id="5F0B8815A211BB5CFB6FDAD3FAEA8E8F" box="[1189,1296,192,218]" pageId="13" pageNumber="14" type="holotype">holotype</typeStatus>
|
||
. Pallial line continuous.
|
||
</paragraph>
|
||
<caption id="D4CF663FA211BB5CFF5DDC23FCD989B2" httpUri="https://zenodo.org/record/182003/files/figure.png" pageId="13" pageNumber="14" targetBox="[181,1390,321,1519]" targetPageId="13">
|
||
<paragraph id="800F36B7A211BB5CFF5DDC23FCD989B2" blockId="13.[151,1436,1584,2024]" pageId="13" pageNumber="14">
|
||
<emphasis id="B2C4EAA5A211BB5CFF5DDC23FEA7881D" bold="true" box="[151,349,1584,1608]" pageId="13" pageNumber="14">FIGURES 54–58.</emphasis>
|
||
<taxonomicName id="47B04D34A211BB5CFEA9DC23FE3F8812" box="[355,453,1584,1607]" class="Bivalvia" family="Poromyidae" genus="Dilemma" kingdom="Animalia" order="Anomalodesmata" pageId="13" pageNumber="14" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B2C4EAA5A211BB5CFEA9DC23FE3F8812" box="[355,453,1584,1607]" italics="true" pageId="13" pageNumber="14">Dilemma</emphasis>
|
||
</taxonomicName>
|
||
species, reconstructed macroanatomy.
|
||
<emphasis id="B2C4EAA5A211BB5CFCAEDC23FC57881D" bold="true" box="[868,941,1584,1608]" pageId="13" pageNumber="14">54–57.</emphasis>
|
||
<taxonomicName id="47B04D34A211BB5CFC79DC23FB798812" box="[947,1155,1584,1607]" class="Bivalvia" family="Poromyidae" genus="Dilemma" kingdom="Animalia" order="Anomalodesmata" pageId="13" pageNumber="14" phylum="Mollusca" rank="species" species="spectralis">
|
||
<emphasis id="B2C4EAA5A211BB5CFC79DC23FB798812" box="[947,1155,1584,1607]" italics="true" pageId="13" pageNumber="14">Dilemma spectralis</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
<emphasis id="B2C4EAA5A211BB5CFB5ADC23FB4B881D" bold="true" box="[1168,1201,1584,1608]" pageId="13" pageNumber="14">54.</emphasis>
|
||
Left lateral view with part of mantle wall removed.
|
||
<emphasis id="B2C4EAA5A211BB5CFE19DC41FE0E883F" bold="true" box="[467,500,1618,1642]" pageId="13" pageNumber="14">55.</emphasis>
|
||
Detail of mantle cavity in left lateral view showing pair of internal tentacles along posterior edge of excurrent siphon.
|
||
<emphasis id="B2C4EAA5A211BB5CFE3BDC66FDE988D8" bold="true" box="[497,531,1653,1677]" pageId="13" pageNumber="14">56.</emphasis>
|
||
Detail of mouth region showing labial palps.
|
||
<emphasis id="B2C4EAA5A211BB5CFBC9DC66FBDF88D8" bold="true" box="[1027,1061,1653,1677]" pageId="13" pageNumber="14">57.</emphasis>
|
||
Posterior region showing siphonal opening, tentacles, and stomach with prey item (a cirolanid isopod.).
|
||
<emphasis id="B2C4EAA5A211BB5CFC45DC8BFC4B88E5" bold="true" box="[911,945,1688,1712]" pageId="13" pageNumber="14">58.</emphasis>
|
||
Comparison of septal ostia in
|
||
<taxonomicName id="47B04D34A211BB5CFACEDC8BFF278887" class="Bivalvia" family="Poromyidae" genus="Dilemma" kingdom="Animalia" order="Anomalodesmata" pageId="13" pageNumber="14" phylum="Mollusca" rank="species" species="frumarkernorum">
|
||
<emphasis id="B2C4EAA5A211BB5CFACEDC8BFF278887" italics="true" pageId="13" pageNumber="14">D. frumarkernorum</emphasis>
|
||
</taxonomicName>
|
||
(left) and
|
||
<taxonomicName id="47B04D34A211BB5CFE87DCA8FE2C8887" box="[333,470,1723,1746]" class="Bivalvia" family="Poromyidae" genus="Dilemma" kingdom="Animalia" order="Anomalodesmata" pageId="13" pageNumber="14" phylum="Mollusca" rank="species" species="spectralis">
|
||
<emphasis id="B2C4EAA5A211BB5CFE87DCA8FE2C8887" box="[333,470,1723,1746]" italics="true" pageId="13" pageNumber="14">D. spectralis</emphasis>
|
||
</taxonomicName>
|
||
(right). Posterior view, only left half of septum shown, with dorsal at top and not to scale. Scale bars: Figure 54 = 3 mm, Figure 55 = 2 mm, Figure 56 = 1 mm. Abbreviations:
|
||
<emphasis id="B2C4EAA5A211BB5CFB8BDCCEFB9288A0" bold="true" box="[1089,1128,1757,1781]" pageId="13" pageNumber="14">AA</emphasis>
|
||
= anterior adductor muscle;
|
||
<emphasis id="B2C4EAA5A211BB5CFF5DDD13FF36894D" bold="true" box="[151,204,1792,1816]" pageId="13" pageNumber="14">ALP</emphasis>
|
||
= anterior labial palps;
|
||
<emphasis id="B2C4EAA5A211BB5CFE05DD13FDFC894D" bold="true" box="[463,518,1792,1816]" pageId="13" pageNumber="14">ASO</emphasis>
|
||
= anterior group of septal ostia;
|
||
<emphasis id="B2C4EAA5A211BB5CFCA3DD13FC75894D" bold="true" box="[873,911,1792,1816]" pageId="13" pageNumber="14">BO</emphasis>
|
||
= byssal opening;
|
||
<emphasis id="B2C4EAA5A211BB5CFB97DD13FB78894D" bold="true" box="[1117,1154,1792,1816]" pageId="13" pageNumber="14">BY</emphasis>
|
||
= byssus;
|
||
<emphasis id="B2C4EAA5A211BB5CFB3DDD13FAE4894D" bold="true" box="[1271,1310,1792,1816]" pageId="13" pageNumber="14">DD</emphasis>
|
||
= digestive diverticula;
|
||
<emphasis id="B2C4EAA5A211BB5CFED0DD31FEC0896F" bold="true" box="[282,314,1826,1850]" pageId="13" pageNumber="14">ES</emphasis>
|
||
= excurrent siphon;
|
||
<emphasis id="B2C4EAA5A211BB5CFDE9DD31FDC6896F" bold="true" box="[547,572,1826,1850]" pageId="13" pageNumber="14">IS</emphasis>
|
||
= incurrent siphonal opening;
|
||
<emphasis id="B2C4EAA5A211BB5CFC59DD31FC3A896F" bold="true" box="[915,960,1826,1850]" pageId="13" pageNumber="14">ISC</emphasis>
|
||
= infraseptal chamber;
|
||
<emphasis id="B2C4EAA5A211BB5CFB02DD31FB09896F" bold="true" box="[1224,1267,1826,1850]" pageId="13" pageNumber="14">IST</emphasis>
|
||
= prey item in stomach (a cirolanid isopod);
|
||
<emphasis id="B2C4EAA5A211BB5CFE1CDD56FE098908" bold="true" box="[470,499,1861,1885]" pageId="13" pageNumber="14">IT</emphasis>
|
||
= internal tentacles;
|
||
<emphasis id="B2C4EAA5A211BB5CFD19DD56FCF88908" bold="true" box="[723,770,1861,1885]" pageId="13" pageNumber="14">ITN</emphasis>
|
||
= tentacles deployed ventrally to incurrent siphon;
|
||
<emphasis id="B2C4EAA5A211BB5CFAE0DD56FAA68908" bold="true" box="[1322,1372,1861,1885]" pageId="13" pageNumber="14">JTN</emphasis>
|
||
= tentacles deployed alongside intersiphonal junction;
|
||
<emphasis id="B2C4EAA5A211BB5CFD7BDD7BFD3C89D5" bold="true" box="[689,710,1896,1920]" pageId="13" pageNumber="14">K</emphasis>
|
||
= kidney;
|
||
<emphasis id="B2C4EAA5A211BB5CFCF4DD7BFC9689D5" bold="true" box="[830,876,1896,1920]" pageId="13" pageNumber="14">MG</emphasis>
|
||
= midgut;
|
||
<emphasis id="B2C4EAA5A211BB5CFC22DD7BFBEC89D5" bold="true" box="[1000,1046,1896,1920]" pageId="13" pageNumber="14">MO</emphasis>
|
||
= mouth;
|
||
<emphasis id="B2C4EAA5A211BB5CFB41DD7BFB3289D5" bold="true" box="[1163,1224,1896,1920]" pageId="13" pageNumber="14">MSO</emphasis>
|
||
= median group of septal ostia;
|
||
<emphasis id="B2C4EAA5A211BB5CFED1DD99FEB889F7" bold="true" box="[283,322,1930,1954]" pageId="13" pageNumber="14">OE</emphasis>
|
||
= esophagus;
|
||
<emphasis id="B2C4EAA5A211BB5CFE13DD99FE0389F7" bold="true" box="[473,505,1930,1954]" pageId="13" pageNumber="14">PA</emphasis>
|
||
= posterior adductor muscle;
|
||
<emphasis id="B2C4EAA5A211BB5CFCF2DD99FC9789F7" bold="true" box="[824,877,1930,1954]" pageId="13" pageNumber="14">PBR</emphasis>
|
||
= posterior byssal retractor muscle;
|
||
<emphasis id="B2C4EAA5A211BB5CFB25DD99FAD889F7" bold="true" box="[1263,1314,1930,1954]" pageId="13" pageNumber="14">PLP</emphasis>
|
||
= posterior labial palps;
|
||
<emphasis id="B2C4EAA5A211BB5CFEE9DDBEFEAC8990" bold="true" box="[291,342,1965,1989]" pageId="13" pageNumber="14">PSO</emphasis>
|
||
= posterior group of septal ostia;
|
||
<emphasis id="B2C4EAA5A211BB5CFD04DDBEFD0C8990" bold="true" box="[718,758,1965,1989]" pageId="13" pageNumber="14">OV</emphasis>
|
||
= ovary;
|
||
<emphasis id="B2C4EAA5A211BB5CFCA9DDBEFC798990" bold="true" box="[867,899,1965,1989]" pageId="13" pageNumber="14">SE</emphasis>
|
||
= septum;
|
||
<emphasis id="B2C4EAA5A211BB5CFBCBDDBEFBD98990" bold="true" box="[1025,1059,1965,1989]" pageId="13" pageNumber="14">SC</emphasis>
|
||
= incurrent siphonal cowl;
|
||
<emphasis id="B2C4EAA5A211BB5CFA99DDBEFA7E8990" bold="true" box="[1363,1412,1965,1989]" pageId="13" pageNumber="14">SSC</emphasis>
|
||
= supraseptal chamber;
|
||
<emphasis id="B2C4EAA5A211BB5CFEB5DDC3FE6589BD" bold="true" box="[383,415,2000,2024]" pageId="13" pageNumber="14">ST</emphasis>
|
||
= stomach;
|
||
<emphasis id="B2C4EAA5A211BB5CFDE9DDC3FDB289BD" bold="true" box="[547,584,2000,2024]" pageId="13" pageNumber="14">UT</emphasis>
|
||
= unpaired tentacle.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="800F36B7A212BB5FFF0FDA8BFD228E8F" blockId="14.[151,1437,152,778]" pageId="14" pageNumber="15">
|
||
Lunule absent. Escutcheon (
|
||
<figureCitation id="188B2A32A212BB5FFDC5DA8BFD7E8EE7" box="[527,644,152,178]" captionStart="FIGURES 34 – 45" captionStartId="10.[151,269,1691,1715]" captionTargetBox="[151,1436,181,1659]" captionTargetId="figure@10.[151,1436,160,1661]" captionTargetPageId="10" captionText="FIGURES 34 – 45. Dilemma species. 34 – 40. Dilemma spectralis. Holotype, MNHN 20818, whole specimen and shell views. 34 – 35. Whole specimen. 34. Posterior. 35. Anterior. Left valve is broken adjacent to byssal gape. 36. Right and left valves, lateral. 37. Ligament in posterodorsal view. 38. Detail of posteroventral shell surface showing periostracum with spicules. 39. Detail of anteroventral shell surface showing periostracum with worn spicules. 40. Right valve, ventral view of internal surface showing hinge. Scale bars: Figures 34 – 36 = 5 mm; Figures 37 – 40 = 1 mm. 41 – 45. Dilemma inexpectatum (Crozier, 1966). Holotype, NMNZ M. 018488, left valve. 41 – 44. Valve views, from left to right: posterior, internal lateral, anterior, external lateral. 45. Detail showing cardinal-like tooth. Scale bars: Figures 41 – 44 = 5 mm; Figure 45 = 1 mm. Abbreviations: AAS = scar of anterior adductor muscle; BG = byssal gap; BGA = byssal gape (in mantle of broken shell); CT = cardinal-like tooth; ES = escutcheon; HS = hinge socket; IL = inner ligament layer; OL = outer ligament layer; SM = shell margin. Figures 41? 44 courtesy Bruce Marshall, copyright Museum of New Zealand Te Papa Tongarewa." httpUri="https://zenodo.org/record/182001/files/figure.png" pageId="14" pageNumber="15">Figure 41</figureCitation>
|
||
, ES) relatively large, smooth, well-defined, separated by prominent groove from remainder of posterior shell surface.
|
||
</paragraph>
|
||
<paragraph id="800F36B7A212BB5FFF0FDAFBFA9E8F57" blockId="14.[151,1437,152,778]" box="[197,1380,232,258]" pageId="14" pageNumber="15">
|
||
Periostracum lacking in
|
||
<typeStatus id="5F0B8815A212BB5FFE29DAFBFDB78F57" box="[483,589,232,258]" pageId="14" pageNumber="15" type="holotype">holotype</typeStatus>
|
||
. Shell color dirty-white with some staining evocative of iron oxide.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C8AA653CA212BB5FFF0FDB1CFF368FA7" pageId="14" pageNumber="15" type="materials_examined">
|
||
<paragraph id="800F36B7A212BB5FFF0FDB1CFB198FF7" blockId="14.[151,1437,152,778]" pageId="14" pageNumber="15">
|
||
<emphasis id="B2C4EAA5A212BB5FFF0FDB1CFE7A8F7C" bold="true" box="[197,384,271,297]" pageId="14" pageNumber="15">
|
||
<typeStatus id="5F0B8815A212BB5FFF0FDB1CFEF88F7C" box="[197,258,271,297]" pageId="14" pageNumber="15">Type</typeStatus>
|
||
Material.
|
||
</emphasis>
|
||
<typeStatus id="5F0B8815A212BB5FFE40DB03FE008F7F" box="[394,506,272,298]" pageId="14" pageNumber="15" type="holotype">Holotype</typeStatus>
|
||
,
|
||
<collectionCode id="E6A1AE72A212BB5FFDCDDB03FDA78F7F" box="[519,605,272,298]" httpUri="http://grbio.org/cool/fg7h-t7tk" name="Museum of New Zealand Te Papa Tongarewa" pageId="14" pageNumber="15">NMNZ</collectionCode>
|
||
M.018488, 3.94 mm (length)
|
||
<emphasis id="B2C4EAA5A212BB5FFC03DB03FC238F7C" box="[969,985,272,297]" italics="true" pageId="14" pageNumber="15">×</emphasis>
|
||
8.19 mm (height)
|
||
<emphasis id="B2C4EAA5A212BB5FFB71DB03FB318F7C" box="[1211,1227,272,297]" italics="true" pageId="14" pageNumber="15">×</emphasis>
|
||
8.16 mm (width; width was calculated by multiplying width of single left valve by two, assuming the shell to be perfectly equivalve),
|
||
<collectionCode id="E6A1AE72A212BB5FFF25DB73FEB78F2F" box="[239,333,352,378]" pageId="14" pageNumber="15">RNZFA</collectionCode>
|
||
TUI,
|
||
<date id="F40E1077A212BB5FFE45DB73FDD28F2F" box="[399,552,352,378]" pageId="14" pageNumber="15" value="1962-07-15">15 July 1962</date>
|
||
(Images available online at Museum of
|
||
<collectingCountry id="F8A77627A212BB5FFBCDDB73FB5E8F2F" box="[1031,1188,352,378]" name="New Zealand" pageId="14" pageNumber="15">New Zealand</collectingCountry>
|
||
Te Papa Tongarewa, 2007.)
|
||
<typeStatus id="5F0B8815A212BB5FFF20DB9BFEA98FF7" box="[234,339,392,418]" pageId="14" pageNumber="15" type="paratype">Paratype</typeStatus>
|
||
, one right valve
|
||
<collectionCode id="E6A1AE72A212BB5FFDDCDB9BFD968FF7" box="[534,620,392,418]" httpUri="http://grbio.org/cool/fg7h-t7tk" name="Museum of New Zealand Te Papa Tongarewa" pageId="14" pageNumber="15">NMNZ</collectionCode>
|
||
M18491 (not seen; both assumed from
|
||
<typeStatus id="5F0B8815A212BB5FFB8ADB9BFB888FF7" box="[1088,1138,392,418]" pageId="14" pageNumber="15">type</typeStatus>
|
||
locality).
|
||
</paragraph>
|
||
<paragraph id="800F36B7A212BB5FFF0FDBBCFF368FA7" blockId="14.[151,1437,152,778]" pageId="14" pageNumber="15">
|
||
<emphasis id="B2C4EAA5A212BB5FFF0FDBBCFE8D8F9C" bold="true" box="[197,375,431,457]" pageId="14" pageNumber="15">
|
||
<typeStatus id="5F0B8815A212BB5FFF0FDBBCFEF88F9C" box="[197,258,431,457]" pageId="14" pageNumber="15">Type</typeStatus>
|
||
Locality.
|
||
</emphasis>
|
||
North of Three Kings Islands,
|
||
<geoCoordinate id="E5845070A212BB5FFD26DBA3FCAA8F9F" box="[748,848,432,458]" direction="south" orientation="latitude" pageId="14" pageNumber="15" precision="925" value="-34.0">34º00' S</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="E5845070A212BB5FFC94DBA3FC288F9F" box="[862,978,432,458]" direction="east" orientation="longitude" pageId="14" pageNumber="15" precision="925" value="171.91667">171º55' E</geoCoordinate>
|
||
,
|
||
<quantity id="47489B52A212BB5FFC2ADBA3FBD18F9F" box="[992,1067,432,458]" metricMagnitude="2" metricUnit="m" metricValue="8.05" pageId="14" pageNumber="15" unit="m" value="805.0">805 m</quantity>
|
||
depth, bryozoan and shell bottom.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C8AA653CA212BB5FFF0FDBECFD808D5C" pageId="14" pageNumber="15" type="discussion">
|
||
<paragraph id="800F36B7A212BB5FFF0FDBECFBD08C3F" blockId="14.[151,1437,152,778]" pageId="14" pageNumber="15">
|
||
<emphasis id="B2C4EAA5A212BB5FFF0FDBECFEC48C4C" bold="true" box="[197,318,511,537]" pageId="14" pageNumber="15">Remarks.</emphasis>
|
||
This species is also known only from its
|
||
<typeStatus id="5F0B8815A212BB5FFCE5D813FC988C4F" box="[815,866,512,538]" pageId="14" pageNumber="15">type</typeStatus>
|
||
locality. It was originally described as a
|
||
<taxonomicName id="47B04D34A212BB5FFA80D813FEAA8C17" class="Bivalvia" family="Cardiidae" genus="Corculum" kingdom="Animalia" order="Veneroida" pageId="14" pageNumber="15" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B2C4EAA5A212BB5FFA80D813FF398C14" italics="true" pageId="14" pageNumber="15">Corculum</emphasis>
|
||
(Cardiidae)
|
||
</taxonomicName>
|
||
from the
|
||
<typeStatus id="5F0B8815A212BB5FFE0DD83BFDCA8C17" box="[455,560,552,578]" pageId="14" pageNumber="15" type="holotype">holotype</typeStatus>
|
||
, a left valve (above), and one
|
||
<typeStatus id="5F0B8815A212BB5FFC53D83BFBFB8C17" box="[921,1025,552,578]" pageId="14" pageNumber="15" type="paratype">paratype</typeStatus>
|
||
, a right valve (not examined). The original description gave dimensions as “2.7 mm (length)
|
||
<emphasis id="B2C4EAA5A212BB5FFC8AD843FCAA8C3C" box="[832,848,592,617]" italics="true" pageId="14" pageNumber="15">×</emphasis>
|
||
8.0 mm (height).”
|
||
</paragraph>
|
||
<paragraph id="800F36B7A212BB5FFF0FD86BFD808D5C" blockId="14.[151,1437,152,778]" pageId="14" pageNumber="15">
|
||
Notwithstanding the lack of known soft parts,
|
||
<taxonomicName id="47B04D34A212BB5FFD36D86BFBF78CC4" box="[764,1037,632,657]" class="Bivalvia" family="Poromyidae" genus="Dilemma" kingdom="Animalia" order="Anomalodesmata" pageId="14" pageNumber="15" phylum="Mollusca" rank="species" species="inexpectatum">
|
||
<emphasis id="B2C4EAA5A212BB5FFD36D86BFBF78CC4" box="[764,1037,632,657]" italics="true" pageId="14" pageNumber="15">Dilemma inexpectatum</emphasis>
|
||
</taxonomicName>
|
||
is easily separated from the two new species described above by its sculpture of strong grooves on its posterior surface that contrasts with a relatively large and very well-defined escutcheon devoid of sculpture, a relatively thicker shell, and the lack of a byssal gap on the anterior shell surface.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |