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<document id="B5B92D3BCEF85F68EA8736A9B8A906AF" ID-CLB-Dataset="22336" ID-DOI="10.5852/ejt.2013.36" ID-GBIF-Dataset="13fb5aaa-91be-4204-90f0-93a492637789" ID-ISSN="2118-9773" ID-Zenodo-Dep="3806624" ID-ZooBank="B54F52A3-823F-49ED-978C-FDF1AEE3D201" IM.bibliography_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1588795856652" checkinUser="carolina" docAuthor="Deckker, Patrick De &amp; Martens, Koen" docDate="2013" docId="03C687DFA17DFFCC7C329EF1A53B5490" docLanguage="en" docName="ejt-2013-36.pdf.imf" docOrigin="European Journal of Taxonomy 36" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Bennelongia nimala Deckker &amp; Martens &amp; Act 2013, nov. sp." docType="treatment" docVersion="8" lastPageNumber="7" masterDocId="FFFFFFA7A178FFCA7E699A28A647514C" masterDocTitle="Extraordinary morphological changes in valve morphology during the ontogeny of several species of the Australian ostracod genus Bennelongia (Crustacea, Ostracoda)" masterLastPageNumber="37" masterPageNumber="1" pageNumber="6" updateTime="1698838844131" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-3.0" zenodo-license-figures="CC-BY-3.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="E9B69B84B7241241C2836FAE68BE4DA4">Extraordinary morphological changes in valve morphology during the ontogeny of several species of the Australian ostracod genus Bennelongia (Crustacea, Ostracoda)</mods:title>
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<mods:namePart id="8DE3E6BF7EBBF44DF72E277DC4BE27E1">Deckker, Patrick De</mods:namePart>
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<mods:namePart id="892BBF163E419F09BAE1A7CBF8D89374">Martens, Koen</mods:namePart>
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<mods:affiliation id="9CC7FDFD38D72E03ED8C00FAA102D633">urn: lsid: zoobank. org: author: 9272757 B-A 9 E 5 - 4 C 94 - B 28 D-F 5 EFF 32 AADC 7 &amp; Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B- 1000 Brussels, Belgium. &amp; University of Ghent, Department of Biology, K. L. Ledeganckstraat 35, B- 9000 Gent, Belgium.</mods:affiliation>
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<treatment id="03C687DFA17DFFCC7C329EF1A53B5490" ID-DOI="http://doi.org/10.5281/zenodo.3815741" ID-GBIF-Taxon="163971527" ID-Zenodo-Dep="3815741" LSID="urn:lsid:plazi:treatment:03C687DFA17DFFCC7C329EF1A53B5490" httpUri="http://treatment.plazi.org/id/03C687DFA17DFFCC7C329EF1A53B5490" lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6">
<subSubSection id="C3756542A17DFFCF7C329EF1A59F55B8" box="[603,984,1241,1268]" pageId="5" pageNumber="6" type="nomenclature">
<paragraph id="8BD036C9A17DFFCF7C329EF1A59F55B8" blockId="5.[603,984,1241,1303]" box="[603,984,1241,1268]" pageId="5" pageNumber="6">
<heading id="D09881A5A17DFFCF7C329EF1A59F55B8" box="[603,984,1241,1268]" centered="true" fontSize="11" level="2" pageId="5" pageNumber="6" reason="2">
<taxonomicName id="4C6F4D4AA17DFFCF7C329EF1A53055B8" authority="Deckker &amp; Martens &amp; Act, 2013" authorityName="Deckker &amp; Martens &amp; Act" authorityYear="2013" box="[603,887,1241,1268]" class="Ostracoda" family="Cyprididae" genus="Bennelongia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Podocopida" pageId="5" pageNumber="6" phylum="Arthropoda" rank="species" species="nimala" status="sp. nov.">
<emphasis id="B91BEADBA17DFFCF7C329EF1A4B155B8" bold="true" box="[603,758,1241,1268]" italics="true" pageId="5" pageNumber="6">Bennelongia</emphasis>
cf.
<emphasis id="B91BEADBA17DFFCF7D4B9EF1A53055B8" bold="true" box="[802,887,1241,1268]" italics="true" pageId="5" pageNumber="6">nimala</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A22857A0A17DFFCF7D179EF2A59F55B8" box="[894,984,1242,1268]" pageId="5" pageNumber="6" rank="species">nov. sp.</taxonomicNameLabel>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3756542A17DFFCF7C8B9ED5A515545B" box="[738,850,1277,1303]" pageId="5" pageNumber="6" type="description">
<paragraph id="8BD036C9A17DFFCF7C8B9ED5A515545B" blockId="5.[603,984,1241,1303]" box="[738,850,1277,1303]" pageId="5" pageNumber="6">
<figureCitation id="13542A4CA17DFFCF7C8B9ED5A515545B" box="[738,850,1277,1303]" captionStart-0="Fig" captionStart-1="Fig" captionStart-2="Fig" captionStart-3="Fig" captionStart-4="Fig" captionStart-5="Fig" captionStart-6="Fig" captionStart-7="Fig" captionStart-8="Fig" captionStartId-0="14.[189,232,1892,1918]" captionStartId-1="15.[187,230,1964,1990]" captionStartId-2="16.[189,232,1965,1991]" captionStartId-3="17.[189,232,1826,1852]" captionStartId-4="18.[189,232,1756,1782]" captionStartId-5="19.[189,232,1895,1921]" captionStartId-6="20.[189,232,1860,1886]" captionStartId-7="21.[189,232,1828,1854]" captionStartId-8="22.[189,232,1894,1920]" captionTargetBox-0="[189,1398,329,1852]" captionTargetBox-1="[189,1398,314,1927]" captionTargetBox-2="[189,1398,457,1924]" captionTargetBox-3="[189,1398,401,1784]" captionTargetBox-4="[225,1361,265,1713]" captionTargetBox-5="[189,1398,386,1853]" captionTargetBox-6="[189,1398,317,1819]" captionTargetBox-7="[189,1398,317,1784]" captionTargetBox-8="[189,1398,452,1852]" captionTargetId-0="figure@14.[189,1398,329,1852]" captionTargetId-1="figure@15.[189,1398,314,1927]" captionTargetId-2="figure@16.[189,1398,457,1924]" captionTargetId-3="figure@17.[189,1398,401,1784]" captionTargetId-4="figure@18.[225,1361,265,1713]" captionTargetId-5="figure@19.[189,1398,386,1853]" captionTargetId-6="figure@20.[189,1398,317,1819]" captionTargetId-7="figure@21.[189,1398,317,1784]" captionTargetId-8="figure@22.[189,1398,452,1852]" captionTargetPageId-0="14" captionTargetPageId-1="15" captionTargetPageId-2="16" captionTargetPageId-3="17" captionTargetPageId-4="18" captionTargetPageId-5="19" captionTargetPageId-6="20" captionTargetPageId-7="21" captionTargetPageId-8="22" captionText-0="Fig. 2. External lateral views of Bennelongia cf. nimala nov. sp. from Muggon Lake. Top. adult carapace in right lateral view. Note the pronounced asymmetry of the valves, especially in the anterior region. Middle. LV of A-1 and A-2 specimens. Bottom. LV of A-3 specimen and RV of A-4 specimen. Domes are arrowed." captionText-1="Fig. 3. External dorsal views of juvenile carapaces (A-1 to A-4) of Bennelongia cf. nimala nov. sp. from Muggon Lake. Domes are arrowed." captionText-2="Fig. 4. Lateral external views of carapaces of A-1 juveniles of Bennelongia cf. nimala nov. sp. from Muggon Lake. Top in left lateral view and bottom in right lateral view." captionText-3="Fig. 5. Details of external lateral views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. Top left. A-1 showing the dome and many of the cones with outer lips. Note the large pseudo-pores that are elongated over what appears to be a second protuberance. Top right. A-2 showing the cones with the outer lips at their apex. Many of the pores yield a seta. Bottom. RV of A-2 in dorsal view, showing the assemblage of cones with outer lips and the dome, on top of which a seta occurs. Note the hinge at the bottom." captionText-4="Fig. 6. Details of external views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. Top left. anterior margin of A-2 carapace in left lateral view, showing the arrangement of the radial pores and their setae. Top right. enlargement of the cone of A-3 valve, showing the fine seta near its top. Bottom left. ventral view of the two valves, showing the radial pores and setae as well as the very fine and narrow external flange in both valves, but more pronounced in the RV seen on the left here. Note also that claws of some limbs are protruding from the closed valves. Bottom right. enlargement of cone and associated lip and protruding seta of an A-3 specimen. Note the presence of fine particulate material stuck to the valve." captionText-5="Fig. 7. External views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake, showing left valves in order to compare the ornamentation between an A-1 specimen (top) and A-2 specimen (bottom). The arrows indicate a clear depression postero-dorsally to each dome, that are linked by a white line." captionText-6="Fig. 8. External views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake, showing left valves in order to compare the ornamentation between an A-2 specimen (top) and A-3 specimen (bottom). The circles, ellipses and polygons are used to define the ornamentations that are common to both specimens. The arrows indicate a clear depression, postero-dorsally to each dome, that are linked by a white line." captionText-7="Fig. 9. External views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. The top image shows an A-3 left valve, whereas the bottom image shows a RV of an A-4 specimen that has been flipped over digitally, so as to permit comparison of the type of external ornamentation and respective location. The white lines (straight as well as circles and ellipses) permit direct comparison between features. Note the presence of particulate matter as well as diatoms, stuck to the anterior portion of the (flipped over) A-4 RV." captionText-8="Fig. 10. External views of A-1 carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. The top image shows an A-1 LV, whereas the bottom image shows a RV of an A-1 specimen that has been flipped over digitally so as to permit comparison of the type of external ornamentation and respective location. Same comments as for Figure 9 concerning the white lines." figureDoi-0="http://doi.org/10.5281/zenodo.3806632" figureDoi-1="http://doi.org/10.5281/zenodo.3806636" figureDoi-2="http://doi.org/10.5281/zenodo.3806638" figureDoi-3="http://doi.org/10.5281/zenodo.3806642" figureDoi-4="http://doi.org/10.5281/zenodo.3806646" figureDoi-5="http://doi.org/10.5281/zenodo.3806650" figureDoi-6="http://doi.org/10.5281/zenodo.3806652" figureDoi-7="http://doi.org/10.5281/zenodo.3806656" figureDoi-8="http://doi.org/10.5281/zenodo.3806660" httpUri-0="https://zenodo.org/record/3806632/files/figure.png" httpUri-1="https://zenodo.org/record/3806636/files/figure.png" httpUri-2="https://zenodo.org/record/3806638/files/figure.png" httpUri-3="https://zenodo.org/record/3806642/files/figure.png" httpUri-4="https://zenodo.org/record/3806646/files/figure.png" httpUri-5="https://zenodo.org/record/3806650/files/figure.png" httpUri-6="https://zenodo.org/record/3806652/files/figure.png" httpUri-7="https://zenodo.org/record/3806656/files/figure.png" httpUri-8="https://zenodo.org/record/3806660/files/figure.png" pageId="5" pageNumber="6">Figs 2-10</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C3756542A17DFFCF7ED49F16A75E54BC" pageId="5" pageNumber="6" type="discussion">
<paragraph id="8BD036C9A17DFFCF7ED49F16A7685414" blockId="5.[189,303,1342,1368]" box="[189,303,1342,1368]" pageId="5" pageNumber="6">
<heading id="D09881A5A17DFFCF7ED49F16A7685414" bold="true" box="[189,303,1342,1368]" fontSize="11" level="3" pageId="5" pageNumber="6" reason="3">
<emphasis id="B91BEADBA17DFFCF7ED49F16A7685414" bold="true" box="[189,303,1342,1368]" pageId="5" pageNumber="6">Remarks</emphasis>
</heading>
</paragraph>
<paragraph id="8BD036C9A17DFFCF7ED49F45A75E54BC" blockId="5.[189,1399,1389,1520]" pageId="5" pageNumber="6">
We are describing the last 4 instar stages (A-4 to A-1) of this species first, because, among the taxa we examined,
<taxonomicName id="4C6F4D4AA17DFFCF7F559FB8A40C54E6" authority="Deckker &amp; Martens &amp; Act, 2013" authorityName="Deckker &amp; Martens &amp; Act" authorityYear="2013" box="[316,587,1424,1450]" class="Ostracoda" family="Cyprididae" genus="Bennelongia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Podocopida" pageId="5" pageNumber="6" phylum="Arthropoda" rank="species" species="nimala" status="sp. nov.">
<emphasis id="B91BEADBA17DFFCF7F559FB8A79754E6" box="[316,464,1424,1450]" italics="true" pageId="5" pageNumber="6">Bennelongia</emphasis>
cf.
<emphasis id="B91BEADBA17DFFCF7F939FB8A40C54E6" box="[506,587,1424,1450]" italics="true" pageId="5" pageNumber="6">nimala</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A22857A0A17DFFCF7C3B9FB9A4EB54E7" box="[594,684,1425,1451]" pageId="5" pageNumber="6" rank="species">nov. sp.</taxonomicNameLabel>
, is the species that displays the largest array of morphological features. The subsequent species will be described using the terminology developed for the present species.
</paragraph>
</subSubSection>
<subSubSection id="C3756542A17DFFCC7ED49C30A53B5490" lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6" type="description">
<paragraph id="8BD036C9A17DFFCF7ED49C30A709577E" blockId="5.[189,334,1560,1586]" box="[189,334,1560,1586]" pageId="5" pageNumber="6">
<heading id="D09881A5A17DFFCF7ED49C30A709577E" bold="true" box="[189,334,1560,1586]" fontSize="11" level="3" pageId="5" pageNumber="6" reason="3">
<emphasis id="B91BEADBA17DFFCF7ED49C30A709577E" bold="true" box="[189,334,1560,1586]" pageId="5" pageNumber="6">Description</emphasis>
</heading>
</paragraph>
<paragraph id="8BD036C9A17DFFCF7ED49C6EA2CA572C" blockId="5.[189,1399,1606,2020]" box="[189,1165,1606,1633]" pageId="5" pageNumber="6">
Three major
<typeStatus id="54D4886BA17DFFCF7F3D9C6FA7D5572D" box="[340,402,1607,1633]" pageId="5" pageNumber="6">types</typeStatus>
of ornamentation are clearly visible, going from large to small:
</paragraph>
<paragraph id="8BD036C9A17DFFCF7ED49C42A46656A8" blockId="5.[189,1399,1606,2020]" pageId="5" pageNumber="6">
1. The
<emphasis id="B91BEADBA17DFFCF7F419C42A72B57C8" bold="true" box="[296,364,1642,1668]" pageId="5" pageNumber="6">dome</emphasis>
is the largest and most prominent feature and lies more or less in the upper central region of the juvenile ostracod valve. It is clearly visible when viewed in a dorsal position (
<figureCitation id="13542A4CA17DFFCF7AA09CA5A35157EB" box="[1225,1302,1677,1703]" captionStart="Fig" captionStartId="14.[189,232,1892,1918]" captionTargetBox="[189,1398,329,1852]" captionTargetId="figure@14.[189,1398,329,1852]" captionTargetPageId="14" captionText="Fig. 2. External lateral views of Bennelongia cf. nimala nov. sp. from Muggon Lake. Top. adult carapace in right lateral view. Note the pronounced asymmetry of the valves, especially in the anterior region. Middle. LV of A-1 and A-2 specimens. Bottom. LV of A-3 specimen and RV of A-4 specimen. Domes are arrowed." figureDoi="http://doi.org/10.5281/zenodo.3806632" httpUri="https://zenodo.org/record/3806632/files/figure.png" pageId="5" pageNumber="6">Figs 2</figureCitation>
,
<figureCitation id="13542A4CA17DFFCF7B4B9CA5A37557EB" box="[1314,1330,1677,1703]" captionStart="Fig" captionStartId="15.[187,230,1964,1990]" captionTargetBox="[189,1398,314,1927]" captionTargetId="figure@15.[189,1398,314,1927]" captionTargetPageId="15" captionText="Fig. 3. External dorsal views of juvenile carapaces (A-1 to A-4) of Bennelongia cf. nimala nov. sp. from Muggon Lake. Domes are arrowed." figureDoi="http://doi.org/10.5281/zenodo.3806636" httpUri="https://zenodo.org/record/3806636/files/figure.png" pageId="5" pageNumber="6">3</figureCitation>
). The French word
<emphasis id="B91BEADBA17DFFCF7FE79C98A7AC5786" box="[398,491,1712,1738]" italics="true" pageId="5" pageNumber="6">coupole</emphasis>
seems to be more suitable to describe this feature, which is faintly reticulated and consists of pseudo-pores (viz. that they do not penetrate through the entire valve) and also bears a normal pore with a seta in its middle (
<figureCitation id="13542A4CA17DFFCF7CAD9CDEA556565D" box="[708,785,1782,1809]" captionStart="Fig" captionStartId="16.[189,232,1965,1991]" captionTargetBox="[189,1398,457,1924]" captionTargetId="figure@16.[189,1398,457,1924]" captionTargetPageId="16" captionText="Fig. 4. Lateral external views of carapaces of A-1 juveniles of Bennelongia cf. nimala nov. sp. from Muggon Lake. Top in left lateral view and bottom in right lateral view." figureDoi="http://doi.org/10.5281/zenodo.3806638" httpUri="https://zenodo.org/record/3806638/files/figure.png" pageId="5" pageNumber="6">Figs 4</figureCitation>
,
<figureCitation id="13542A4CA17DFFCF7D769CDEA577565D" box="[799,816,1782,1809]" captionStart="Fig" captionStartId="17.[189,232,1826,1852]" captionTargetBox="[189,1398,401,1784]" captionTargetId="figure@17.[189,1398,401,1784]" captionTargetPageId="17" captionText="Fig. 5. Details of external lateral views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. Top left. A-1 showing the dome and many of the cones with outer lips. Note the large pseudo-pores that are elongated over what appears to be a second protuberance. Top right. A-2 showing the cones with the outer lips at their apex. Many of the pores yield a seta. Bottom. RV of A-2 in dorsal view, showing the assemblage of cones with outer lips and the dome, on top of which a seta occurs. Note the hinge at the bottom." figureDoi="http://doi.org/10.5281/zenodo.3806642" httpUri="https://zenodo.org/record/3806642/files/figure.png" pageId="5" pageNumber="6">5</figureCitation>
). The dome is not met by a depression inside the ostracod valve and is therefore considered to be an (external) ornamental feature. It is also clear that the
<typeStatus id="54D4886BA17DFFCF7F7E9D15A70D561B" box="[279,330,1853,1879]" pageId="5" pageNumber="6">type</typeStatus>
of ornamentation recognised on the dome is not unique to that area, as it appears also on most of the valve (
<figureCitation id="13542A4CA17DFFCF7FA59D48A4525637" box="[460,533,1888,1915]" captionStart="Fig" captionStartId="17.[189,232,1826,1852]" captionTargetBox="[189,1398,401,1784]" captionTargetId="figure@17.[189,1398,401,1784]" captionTargetPageId="17" captionText="Fig. 5. Details of external lateral views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. Top left. A-1 showing the dome and many of the cones with outer lips. Note the large pseudo-pores that are elongated over what appears to be a second protuberance. Top right. A-2 showing the cones with the outer lips at their apex. Many of the pores yield a seta. Bottom. RV of A-2 in dorsal view, showing the assemblage of cones with outer lips and the dome, on top of which a seta occurs. Note the hinge at the bottom." figureDoi="http://doi.org/10.5281/zenodo.3806642" httpUri="https://zenodo.org/record/3806642/files/figure.png" pageId="5" pageNumber="6">Fig. 5</figureCitation>
). In some instances, there appears to be a second feature in the shape of a dome, but which is additionally set with 2 to 4 large cones of the
<typeStatus id="54D4886BA17DFFCF7A789DACA20856D2" box="[1041,1103,1924,1950]" pageId="5" pageNumber="6">types</typeStatus>
discussed below. This is visible in
<figureCitation id="13542A4CA17DFFCF7F359D8EA7E5568D" box="[348,418,1958,1985]" captionStart="Fig" captionStartId="16.[189,232,1965,1991]" captionTargetBox="[189,1398,457,1924]" captionTargetId="figure@16.[189,1398,457,1924]" captionTargetPageId="16" captionText="Fig. 4. Lateral external views of carapaces of A-1 juveniles of Bennelongia cf. nimala nov. sp. from Muggon Lake. Top in left lateral view and bottom in right lateral view." figureDoi="http://doi.org/10.5281/zenodo.3806638" httpUri="https://zenodo.org/record/3806638/files/figure.png" pageId="5" pageNumber="6">Fig. 4</figureCitation>
,
<figureCitation id="13542A4CA17DFFCF7FC49D8EA7B5568D" box="[429,498,1958,1985]" captionStart="Fig" captionStartId="17.[189,232,1826,1852]" captionTargetBox="[189,1398,401,1784]" captionTargetId="figure@17.[189,1398,401,1784]" captionTargetPageId="17" captionText="Fig. 5. Details of external lateral views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. Top left. A-1 showing the dome and many of the cones with outer lips. Note the large pseudo-pores that are elongated over what appears to be a second protuberance. Top right. A-2 showing the cones with the outer lips at their apex. Many of the pores yield a seta. Bottom. RV of A-2 in dorsal view, showing the assemblage of cones with outer lips and the dome, on top of which a seta occurs. Note the hinge at the bottom." figureDoi="http://doi.org/10.5281/zenodo.3806642" httpUri="https://zenodo.org/record/3806642/files/figure.png" pageId="5" pageNumber="6">Fig. 5</figureCitation>
, upper left panel, and
<figureCitation id="13542A4CA17DFFCF7C9B9D8EA523568D" box="[754,868,1958,1985]" captionStart-0="Fig" captionStart-1="Fig" captionStart-2="Fig" captionStart-3="Fig" captionStartId-0="19.[189,232,1895,1921]" captionStartId-1="20.[189,232,1860,1886]" captionStartId-2="21.[189,232,1828,1854]" captionStartId-3="22.[189,232,1894,1920]" captionTargetBox-0="[189,1398,386,1853]" captionTargetBox-1="[189,1398,317,1819]" captionTargetBox-2="[189,1398,317,1784]" captionTargetBox-3="[189,1398,452,1852]" captionTargetId-0="figure@19.[189,1398,386,1853]" captionTargetId-1="figure@20.[189,1398,317,1819]" captionTargetId-2="figure@21.[189,1398,317,1784]" captionTargetId-3="figure@22.[189,1398,452,1852]" captionTargetPageId-0="19" captionTargetPageId-1="20" captionTargetPageId-2="21" captionTargetPageId-3="22" captionText-0="Fig. 7. External views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake, showing left valves in order to compare the ornamentation between an A-1 specimen (top) and A-2 specimen (bottom). The arrows indicate a clear depression postero-dorsally to each dome, that are linked by a white line." captionText-1="Fig. 8. External views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake, showing left valves in order to compare the ornamentation between an A-2 specimen (top) and A-3 specimen (bottom). The circles, ellipses and polygons are used to define the ornamentations that are common to both specimens. The arrows indicate a clear depression, postero-dorsally to each dome, that are linked by a white line." captionText-2="Fig. 9. External views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. The top image shows an A-3 left valve, whereas the bottom image shows a RV of an A-4 specimen that has been flipped over digitally, so as to permit comparison of the type of external ornamentation and respective location. The white lines (straight as well as circles and ellipses) permit direct comparison between features. Note the presence of particulate matter as well as diatoms, stuck to the anterior portion of the (flipped over) A-4 RV." captionText-3="Fig. 10. External views of A-1 carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. The top image shows an A-1 LV, whereas the bottom image shows a RV of an A-1 specimen that has been flipped over digitally so as to permit comparison of the type of external ornamentation and respective location. Same comments as for Figure 9 concerning the white lines." figureDoi-0="http://doi.org/10.5281/zenodo.3806650" figureDoi-1="http://doi.org/10.5281/zenodo.3806652" figureDoi-2="http://doi.org/10.5281/zenodo.3806656" figureDoi-3="http://doi.org/10.5281/zenodo.3806660" httpUri-0="https://zenodo.org/record/3806650/files/figure.png" httpUri-1="https://zenodo.org/record/3806652/files/figure.png" httpUri-2="https://zenodo.org/record/3806656/files/figure.png" httpUri-3="https://zenodo.org/record/3806660/files/figure.png" pageId="5" pageNumber="6">Figs 7-10</figureCitation>
. The second domal feature is located posteroventrally to the first dome.
</paragraph>
<paragraph id="8BD036C9A17EFFCC7ED49B23A24950B4" blockId="6.[189,1399,267,646]" pageId="6" pageNumber="7">
2. the
<emphasis id="B91BEADBA17EFFCC7F719B24A47B5069" bold="true" box="[280,572,267,294]" pageId="6" pageNumber="7">cones with an outer lip</emphasis>
and a seta at their apex. The seta is substantially larger than the one located on the dome. These features are clearly visible in
<figureCitation id="13542A4CA17EFFCC7DC59B06A25A5005" box="[940,1053,302,329]" captionStart="Fig" captionStartId="17.[189,232,1826,1852]" captionTargetBox="[189,1398,401,1784]" captionTargetId="figure@17.[189,1398,401,1784]" captionTargetPageId="17" captionText="Fig. 5. Details of external lateral views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. Top left. A-1 showing the dome and many of the cones with outer lips. Note the large pseudo-pores that are elongated over what appears to be a second protuberance. Top right. A-2 showing the cones with the outer lips at their apex. Many of the pores yield a seta. Bottom. RV of A-2 in dorsal view, showing the assemblage of cones with outer lips and the dome, on top of which a seta occurs. Note the hinge at the bottom." figureDoi="http://doi.org/10.5281/zenodo.3806642" httpUri="https://zenodo.org/record/3806642/files/figure.png" pageId="6" pageNumber="7">Figures 5</figureCitation>
and
<figureCitation id="13542A4CA17EFFCC7A359B06A2295004" box="[1116,1134,302,328]" captionStart="Fig" captionStartId="18.[189,232,1756,1782]" captionTargetBox="[225,1361,265,1713]" captionTargetId="figure@18.[225,1361,265,1713]" captionTargetPageId="18" captionText="Fig. 6. Details of external views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. Top left. anterior margin of A-2 carapace in left lateral view, showing the arrangement of the radial pores and their setae. Top right. enlargement of the cone of A-3 valve, showing the fine seta near its top. Bottom left. ventral view of the two valves, showing the radial pores and setae as well as the very fine and narrow external flange in both valves, but more pronounced in the RV seen on the left here. Note also that claws of some limbs are protruding from the closed valves. Bottom right. enlargement of cone and associated lip and protruding seta of an A-3 specimen. Note the presence of fine particulate material stuck to the valve." figureDoi="http://doi.org/10.5281/zenodo.3806646" httpUri="https://zenodo.org/record/3806646/files/figure.png" pageId="6" pageNumber="7">6</figureCitation>
. Such
<typeStatus id="54D4886BA17EFFCC7AAB9B07A2B25005" box="[1218,1269,303,329]" pageId="6" pageNumber="7">type</typeStatus>
of conical feature has already been recognised in other ostracods, such as the pustules illustrated by
<bibRefCitation id="EFFE4B38A17EFFCC7B3D9B7AA7F350DC" author="De Deckker P." pageId="6" pageNumber="7" pagination="37 - 55" refId="ref7882" refString="De Deckker P. 1981 b. Taxonomic Notes on Some Australian Ostracods with Description of New Species. Zoologica Scripta 10: 37 - 55. http: // dx. doi. org / 10.1111 / j. 1463 - 6409.1981. tb 00483. x" type="journal article" year="1981">De Deckker (1981b)</bibRefCitation>
and
<bibRefCitation id="EFFE4B38A17EFFCC7F869B5DA55250DC" author="Smith R. J. &amp; Martens K." box="[495,789,373,400]" pageId="6" pageNumber="7" pagination="61 - 68" refId="ref8829" refString="Smith R. J. &amp; Martens K. 1996. On Eucypris virens (Jurine). Stereo-Atlas of Ostracod Shells 23 (14): 61 - 68." type="journal article" year="1996">Smith &amp; Martens (1996)</bibRefCitation>
near the anterior margin of
<taxonomicName id="4C6F4D4AA17EFFCC7A0E9B5EA35850C3" baseAuthorityName="Jurine" baseAuthorityYear="1820" box="[1127,1311,374,399]" class="Ostracoda" family="Cyprididae" genus="Eucypris" kingdom="Animalia" order="Podocopida" pageId="6" pageNumber="7" phylum="Arthropoda" rank="species" species="virens">
<emphasis id="B91BEADBA17EFFCC7A0E9B5EA35850C3" box="[1127,1311,374,399]" italics="true" pageId="6" pageNumber="7">Eucypris virens</emphasis>
</taxonomicName>
, which belongs in
<taxonomicName id="4C6F4D4AA17EFFCC7F039BB0A44D50FE" authorityName="Bronshtein" authorityYear="1947" box="[362,522,408,434]" class="Ostracoda" family="Cyprididae" kingdom="Animalia" order="Podocopida" pageId="6" pageNumber="7" phylum="Arthropoda" rank="subFamily" subFamily="Eucypridinae">Eucypridinae</taxonomicName>
, a family most likely phylogenetically quite close to the
<taxonomicName id="4C6F4D4AA17EFFCC7AF79BB0A31150FE" authorityName="Martens, Halse &amp; Schon" authorityYear="2012" box="[1182,1366,408,434]" class="Ostracoda" family="Cyprididae" kingdom="Animalia" order="Podocopida" pageId="6" pageNumber="7" phylum="Arthropoda" rank="subFamily" subFamily="Bennelongiinae">Bennelongiinae</taxonomicName>
. It appears that some of the setae penetrate through the entire shell, and could therefore have a different function, as holes are visible inside the carapace of some specimens.
</paragraph>
<paragraph id="8BD036C9A17EFFCC7ED4982AA57253CA" blockId="6.[189,1399,267,646]" pageId="6" pageNumber="7">
3. the rest of most valves can either be smooth (as seen in the anterior region of the valves) or consist of pseudo-pores (
<emphasis id="B91BEADBA17EFFCC7FDE980DA4475373" bold="true" box="[439,512,549,575]" pageId="6" pageNumber="7">pitted</emphasis>
). Nevertheless, normal pores are also present (see
<figureCitation id="13542A4CA17EFFCC7A38980DA2D1530C" box="[1105,1174,549,576]" captionStart="Fig" captionStartId="17.[189,232,1826,1852]" captionTargetBox="[189,1398,401,1784]" captionTargetId="figure@17.[189,1398,401,1784]" captionTargetPageId="17" captionText="Fig. 5. Details of external lateral views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake. Top left. A-1 showing the dome and many of the cones with outer lips. Note the large pseudo-pores that are elongated over what appears to be a second protuberance. Top right. A-2 showing the cones with the outer lips at their apex. Many of the pores yield a seta. Bottom. RV of A-2 in dorsal view, showing the assemblage of cones with outer lips and the dome, on top of which a seta occurs. Note the hinge at the bottom." figureDoi="http://doi.org/10.5281/zenodo.3806642" httpUri="https://zenodo.org/record/3806642/files/figure.png" pageId="6" pageNumber="7">Fig. 5</figureCitation>
, left panel) and are different from the radial pore canals (see
<bibRefCitation id="EFFE4B38A17EFFCC7CAE9861A581532F" author="Van Morkhoven F. P. C. M." box="[711,966,584,611]" pageId="6" pageNumber="7" refId="ref9054" refString="Van Morkhoven F. P. C. M. 1962. Post-Palaeozoic Ostracoda. Volume 1. Their Morphology, Taxonomy, and Economic Use. Elsevier Publishing Company, Amsterdam." type="book" year="1962">van Morkhoven 1962</bibRefCitation>
). The juvenile valve surface is pitted, while the adult valves are set with small
<emphasis id="B91BEADBA17EFFCC7CA19844A56853CA" bold="true" box="[712,815,620,646]" pageId="6" pageNumber="7">pustules</emphasis>
.
</paragraph>
<paragraph id="8BD036C9A17EFFCC7ED49885A5895241" blockId="6.[189,1399,685,782]" pageId="6" pageNumber="7">
Finally, a clear
<emphasis id="B91BEADBA17EFFCC7F189885A7B1538B" bold="true" box="[369,502,685,711]" pageId="6" pageNumber="7">depression</emphasis>
is seen on the outside of the valves posterior to the largest dome (arrowed in
<figureCitation id="13542A4CA17EFFCC7ED498F8A74553A6" box="[189,258,720,746]" captionStart="Fig" captionStartId="19.[189,232,1895,1921]" captionTargetBox="[189,1398,386,1853]" captionTargetId="figure@19.[189,1398,386,1853]" captionTargetPageId="19" captionText="Fig. 7. External views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake, showing left valves in order to compare the ornamentation between an A-1 specimen (top) and A-2 specimen (bottom). The arrows indicate a clear depression postero-dorsally to each dome, that are linked by a white line." figureDoi="http://doi.org/10.5281/zenodo.3806650" httpUri="https://zenodo.org/record/3806650/files/figure.png" pageId="6" pageNumber="7">Fig. 7</figureCitation>
). We have been unable to determine whether it is linked with a muscle attachment inside the valve. This feature was not seen in juvenile of other
<taxonomicName id="4C6F4D4AA17EFFCC7CBF98DBA52D5241" authorityName="De Deckker &amp; McKenzie" authorityYear="1981" box="[726,874,755,781]" class="Ostracoda" family="Cyprididae" genus="Bennelongia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Podocopida" pageId="6" pageNumber="7" phylum="Arthropoda" rank="genus">
<emphasis id="B91BEADBA17EFFCC7CBF98DBA52D5241" box="[726,874,755,781]" italics="true" pageId="6" pageNumber="7">Bennelongia</emphasis>
</taxonomicName>
species.
</paragraph>
<paragraph id="8BD036C9A17EFFCC7ED4991DA5555290" blockId="6.[189,1399,821,988]" pageId="6" pageNumber="7">
Although the youngest instars (A-4) of
<taxonomicName id="4C6F4D4AA17EFFCC7CE5991DA5635203" authority="Deckker &amp; Martens &amp; Act, 2013" authorityName="Deckker &amp; Martens &amp; Act" authorityYear="2013" box="[652,804,821,847]" class="Ostracoda" family="Cyprididae" genus="Bennelongia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Podocopida" pageId="6" pageNumber="7" phylum="Arthropoda" rank="species" species="nimala" status="sp. nov.">
<emphasis id="B91BEADBA17EFFCC7CE5991DA4E15202" box="[652,678,821,846]" italics="true" pageId="6" pageNumber="7">B.</emphasis>
cf.
<emphasis id="B91BEADBA17EFFCC7CBA991DA5635203" box="[723,804,821,847]" italics="true" pageId="6" pageNumber="7">nimala</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A22857A0A17EFFCC7D45991DA5C15203" box="[812,902,821,847]" pageId="6" pageNumber="7" rank="species">nov. sp.</taxonomicNameLabel>
characterisitically display proportionately larger and more obvious ornamentation (
<figureCitation id="13542A4CA17EFFCC7CCE9970A54A523E" box="[679,781,856,882]" captionStart-0="Fig" captionStart-1="Fig" captionStartId-0="15.[187,230,1964,1990]" captionStartId-1="16.[189,232,1965,1991]" captionTargetBox-0="[189,1398,314,1927]" captionTargetBox-1="[189,1398,457,1924]" captionTargetId-0="figure@15.[189,1398,314,1927]" captionTargetId-1="figure@16.[189,1398,457,1924]" captionTargetPageId-0="15" captionTargetPageId-1="16" captionText-0="Fig. 3. External dorsal views of juvenile carapaces (A-1 to A-4) of Bennelongia cf. nimala nov. sp. from Muggon Lake. Domes are arrowed." captionText-1="Fig. 4. Lateral external views of carapaces of A-1 juveniles of Bennelongia cf. nimala nov. sp. from Muggon Lake. Top in left lateral view and bottom in right lateral view." figureDoi-0="http://doi.org/10.5281/zenodo.3806636" figureDoi-1="http://doi.org/10.5281/zenodo.3806638" httpUri-0="https://zenodo.org/record/3806636/files/figure.png" httpUri-1="https://zenodo.org/record/3806638/files/figure.png" pageId="6" pageNumber="7">Figs 3-4</figureCitation>
) than the older specimens (A-3 to A-1 instars), the same pattern of nodes, elevated pores and the domes (see description below) are repeated in all juvenile stages. This is best seen in dorsal views of the carapaces (
<figureCitation id="13542A4CA17EFFCC7D0699B6A5F052F4" box="[879,951,926,952]" captionStart="Fig" captionStartId="15.[187,230,1964,1990]" captionTargetBox="[189,1398,314,1927]" captionTargetId="figure@15.[189,1398,314,1927]" captionTargetPageId="15" captionText="Fig. 3. External dorsal views of juvenile carapaces (A-1 to A-4) of Bennelongia cf. nimala nov. sp. from Muggon Lake. Domes are arrowed." figureDoi="http://doi.org/10.5281/zenodo.3806636" httpUri="https://zenodo.org/record/3806636/files/figure.png" pageId="6" pageNumber="7">Fig. 3</figureCitation>
). Note that none of these features are visible in adult specimens as shown in
<figureCitation id="13542A4CA17EFFCC7CEF99E9A48C5290" box="[646,715,961,988]" captionStart="Fig" captionStartId="14.[189,232,1892,1918]" captionTargetBox="[189,1398,329,1852]" captionTargetId="figure@14.[189,1398,329,1852]" captionTargetPageId="14" captionText="Fig. 2. External lateral views of Bennelongia cf. nimala nov. sp. from Muggon Lake. Top. adult carapace in right lateral view. Note the pronounced asymmetry of the valves, especially in the anterior region. Middle. LV of A-1 and A-2 specimens. Bottom. LV of A-3 specimen and RV of A-4 specimen. Domes are arrowed." figureDoi="http://doi.org/10.5281/zenodo.3806632" httpUri="https://zenodo.org/record/3806632/files/figure.png" pageId="6" pageNumber="7">Fig. 2</figureCitation>
(top).
</paragraph>
<paragraph id="8BD036C9A17EFFCC7ED49E2BA7A055BC" blockId="6.[189,1399,1027,1264]" pageId="6" pageNumber="7">
Examination of
<figureCitation id="13542A4CA17EFFCC7F119E2BA7875551" box="[376,448,1027,1053]" captionStart="Fig" captionStartId="19.[189,232,1895,1921]" captionTargetBox="[189,1398,386,1853]" captionTargetId="figure@19.[189,1398,386,1853]" captionTargetPageId="19" captionText="Fig. 7. External views of carapaces of Bennelongia cf. nimala nov. sp. juveniles from Muggon Lake, showing left valves in order to compare the ornamentation between an A-1 specimen (top) and A-2 specimen (bottom). The arrows indicate a clear depression postero-dorsally to each dome, that are linked by a white line." figureDoi="http://doi.org/10.5281/zenodo.3806650" httpUri="https://zenodo.org/record/3806650/files/figure.png" pageId="6" pageNumber="7">Figs 7</figureCitation>
to 10 enabled us to recognise that the domes and conical pores are located mostly at the same sites on both valves in the same instar stages. Many of the cones with pores are arranged either in rows or in clumps. There are some very slight differences between opposite valves, but this could be an artefact of carapace orientation under the SEM when the rounded specimens are stuck on the double-sided sticky tape. Finally, the positioning of the domes and also cones with pores remain similar from one juvenile stage to the other, thus indicating that the placement of these ornaments may be genetically controlled.
</paragraph>
<paragraph id="8BD036C9A17EFFCC7ED49F30A32254D7" blockId="6.[189,1399,1303,1436]" pageId="6" pageNumber="7">
In the case of
<taxonomicName id="4C6F4D4AA17EFFCC7F089F30A7BF547D" authority="Deckker &amp; Martens &amp; Act, 2013" authorityName="Deckker &amp; Martens &amp; Act" authorityYear="2013" box="[353,504,1303,1329]" class="Ostracoda" family="Cyprididae" genus="Bennelongia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Podocopida" pageId="6" pageNumber="7" phylum="Arthropoda" rank="species" species="nimala" status="sp. nov.">
<emphasis id="B91BEADBA17EFFCC7F089F30A73C547D" box="[353,379,1304,1329]" italics="true" pageId="6" pageNumber="7">B.</emphasis>
cf.
<emphasis id="B91BEADBA17EFFCC7FCE9F3FA7BF547D" box="[423,504,1303,1329]" italics="true" pageId="6" pageNumber="7">nimala</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A22857A0A17EFFCC7C699F30A41B547E" box="[512,604,1304,1330]" pageId="6" pageNumber="7" rank="species">nov. sp.</taxonomicNameLabel>
, well over 30 cones with the outer lips and setae have been counted in A-
<specimenCount id="9D69FD40A17EFFCC7E969F13A7CA5419" box="[255,397,1339,1365]" pageId="6" pageNumber="7" type="generic">1 specimens</specimenCount>
and slightly lower numbers were seen in A-
<specimenCount id="9D69FD40A17EFFCC7DCE9F13A27B5419" box="[935,1084,1339,1365]" pageId="6" pageNumber="7" type="generic">4 specimens</specimenCount>
, but this is not surprising, knowing that the external surface area of the valves of older instar ostracods is much more extensive than for the juvenile ones. Although there were less cones in A-4 than in A-1, they were more pronounced.
</paragraph>
<paragraph id="8BD036C9A17EFFCC7ED49FEBA53B5490" blockId="6.[189,892,1474,1501]" box="[189,892,1474,1501]" pageId="6" pageNumber="7">We did not examine inner views of juveniles in this species.</paragraph>
</subSubSection>
</treatment>
</document>