204 lines
25 KiB
XML
204 lines
25 KiB
XML
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<mods:title id="B313C7C26D236EF42181688AC8B59F99">A redescription of Eulimnadia rivolensis (Brady, 1886) (Branchiopoda: Spinicaudata: Limnadiiidae), and its transfer to Paralimnadia</mods:title>
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<mods:namePart id="87056473AA61DCF5F1F4D9F55414C4FF">Timms, Brian V.</mods:namePart>
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<treatment id="03B887D8FFEF10118B984154FB26FE08" ID-DOI="http://doi.org/10.5281/zenodo.8065411" ID-GBIF-Taxon="210387779" ID-Zenodo-Dep="8065411" LSID="urn:lsid:plazi:treatment:03B887D8FFEF10118B984154FB26FE08" httpUri="http://treatment.plazi.org/id/03B887D8FFEF10118B984154FB26FE08" lastPageNumber="63" pageId="6" pageNumber="63">
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<paragraph id="8BAE36CEFFEF10118B984154FE1EFDBA" blockId="6.[140,409,577,599]" box="[140,409,577,599]" pageId="6" pageNumber="63">
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<heading id="D0E681A2FFEF10118B984154FE1EFDBA" bold="true" box="[140,409,577,599]" fontSize="9" level="2" pageId="6" pageNumber="63" reason="2">
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<emphasis id="B965EADCFFEF10118B984154FE1EFDBA" bold="true" box="[140,409,577,599]" pageId="6" pageNumber="63">
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Synonymy of
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<taxonomicName id="4C114D4DFFEF10118A094157FE1EFDBA" ID-CoL="7aa0c7c1-ad39-4e53-bd37-4109c11fecf3" authorityName="Timms" authorityYear="2015" box="[285,409,577,599]" class="Branchiopoda" family="Limnadiidae" genus="Eulimnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="species" species="palustera">
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<emphasis id="B965EADCFFEF10118A094157FE1EFDBA" bold="true" box="[285,409,577,599]" italics="true" pageId="6" pageNumber="63">E. palustera</emphasis>
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</taxonomicName>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C30B6545FFEF10118B98417BFB26FE08" pageId="6" pageNumber="63" type="description">
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<paragraph id="8BAE36CEFFEF10118B98417BFEFCFC48" blockId="6.[138,772,622,1743]" pageId="6" pageNumber="63">
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This species was originally assigned to
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<taxonomicName id="4C114D4DFFEF1011890D417BFD16FD6E" baseAuthorityName="Timms" baseAuthorityYear="2016" box="[537,657,622,643]" class="Branchiopoda" family="Limnadiidae" genus="Eulimnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="genus">
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<emphasis id="B965EADCFFEF1011890D417BFD16FD6E" box="[537,657,622,643]" italics="true" pageId="6" pageNumber="63">Eulimnadia</emphasis>
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</taxonomicName>
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on the sole criterion of an apparent spine beneath the cercopod base (
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<bibRefCitation id="EF804B3FFFEF10118B8741BDFE9CFD50" author="Timms, B. V." box="[147,283,679,702]" pageId="6" pageNumber="63" pagination="441 - 453" refId="ref4868" refString="Timms, B. V. 2015. Eulimnadia (Branchiopoda: Spinicaudata) in Western Australia: Three new species and a description of a rediscovered species. Journal of Crustacean Biology 35: 441 - 453." type="journal article" year="2015">Timms, 2015</bibRefCitation>
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). However, this spine is not a typical subcercopod spine of most
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<taxonomicName id="4C114D4DFFEF10118A2341D0FE28FD37" baseAuthorityName="Timms" baseAuthorityYear="2016" box="[311,431,709,730]" class="Branchiopoda" family="Limnadiidae" genus="Eulimnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="genus">
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<emphasis id="B965EADCFFEF10118A2341D0FE28FD37" box="[311,431,709,730]" italics="true" pageId="6" pageNumber="63">Eulimnadia</emphasis>
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</taxonomicName>
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but a rather sharp triangular ventroposterior corner of the telson. Hence, an assignment to
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<taxonomicName id="4C114D4DFFEF10118B9841EBFE9DFCFE" authorityName="Sars" authorityYear="1896" box="[140,282,766,787]" class="Branchiopoda" family="Limnadiidae" genus="Paralimnadia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="genus">
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<emphasis id="B965EADCFFEF10118B9841EBFE9DFCFE" box="[140,282,766,787]" italics="true" pageId="6" pageNumber="63">Paralimnadia</emphasis>
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</taxonomicName>
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is necessary. Furthermore, three other features suggest placement in
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<taxonomicName id="4C114D4DFFEF10118A78400EFE7EFCDD" authorityName="Sars" authorityYear="1896" box="[364,505,795,816]" class="Branchiopoda" family="Limnadiidae" genus="Paralimnadia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="genus">
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<emphasis id="B965EADCFFEF10118A78400EFE7EFCDD" box="[364,505,795,816]" italics="true" pageId="6" pageNumber="63">Paralimnadia</emphasis>
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</taxonomicName>
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: a cercopod with a spine approximately midlength and not at about 80% of its length, 13 antennomeres rather than about 8, and a sex ratio approximating 1:1, all generally (but not absolutely) indicating
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<taxonomicName id="4C114D4DFFEF101189624067FC83FC6A" authorityName="Sars" authorityYear="1896" box="[630,772,882,903]" class="Branchiopoda" family="Limnadiidae" genus="Paralimnadia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="genus">
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<emphasis id="B965EADCFFEF101189624067FC83FC6A" box="[630,772,882,903]" italics="true" pageId="6" pageNumber="63">Paralimnadia</emphasis>
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</taxonomicName>
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(
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<bibRefCitation id="EF804B3FFFEF10118B87409AFEAFFC48" author="Timms, B. V." box="[147,296,911,933]" pageId="6" pageNumber="63" pagination="351 - 389" refId="ref4907" refString="Timms, B. V. 2016 a. A partial revision of the Australian Eulimnadia Packard, 1874 (Branchiopoda: Spinicaudata: Limnadiidae). Zootaxa 4066: 351 - 389." type="journal article" year="2016">Timms, 2016a</bibRefCitation>
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,
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<bibRefCitation id="EF804B3FFFEF10118A25409AFEF7FC48" author="Timms, B. V." box="[305,368,911,933]" pageId="6" pageNumber="63" pagination="451 - 508" refId="ref4941" refString="Timms, B. V. 2016 b. A review of the Australian endemic clam shrimp, Paralimnadia Sars 1896 (Crustacea: Branchiopoda: Spinicaudata). Zootaxa 4161: 451 - 508." type="journal article" year="2016">2016b</bibRefCitation>
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).
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</paragraph>
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<paragraph id="8BAE36CEFFEF10118BA640B9FD45FA43" blockId="6.[138,772,622,1743]" pageId="6" pageNumber="63">
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Given the placement of
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<taxonomicName id="4C114D4DFFEF10118AB040B8FD98FC2C" authorityName="Timms" authorityYear="2015" box="[420,543,940,962]" class="Branchiopoda" family="Limnadiidae" genus="Eulimnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="species" species="palustera">
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<emphasis id="B965EADCFFEF10118AB040B8FD98FC2C" box="[420,543,940,962]" italics="true" pageId="6" pageNumber="63">P. palustera</emphasis>
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</taxonomicName>
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||
within
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<taxonomicName id="4C114D4DFFEF1011897B40B9FD7BFC2C" authorityName="Sars" authorityYear="1896" box="[623,764,940,961]" class="Branchiopoda" family="Limnadiidae" genus="Paralimnadia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="genus">
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||
<emphasis id="B965EADCFFEF1011897B40B9FD7BFC2C" box="[623,764,940,961]" italics="true" pageId="6" pageNumber="63">Paralimnadia</emphasis>
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</taxonomicName>
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, its eggs are identical with those of
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<taxonomicName id="4C114D4DFFEF10118AF540DFFDDAFC33" baseAuthorityName="Brady" baseAuthorityYear="1886" box="[481,605,969,991]" class="Branchiopoda" family="Limnadiidae" genus="Limnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="species" species="rivolensis">
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<emphasis id="B965EADCFFEF10118AF540DFFDDAFC33" box="[481,605,969,991]" italics="true" pageId="6" pageNumber="63">P. rivolensis</emphasis>
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||
</taxonomicName>
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being astroform with 14–20 projections subtended by 3–8 sharp-edged grooves (fig. 4). Egg morphology has proved to be the most reliable character separating species within
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<taxonomicName id="4C114D4DFFEF101189154735FDFEFBD8" baseAuthorityName="Timms" baseAuthorityYear="2016" box="[513,633,1056,1077]" class="Branchiopoda" family="Limnadiidae" genus="Eulimnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="genus">
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<emphasis id="B965EADCFFEF101189154735FDFEFBD8" box="[513,633,1056,1077]" italics="true" pageId="6" pageNumber="63">Eulimnadia</emphasis>
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</taxonomicName>
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(Belk, 1998;
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<bibRefCitation id="EF804B3FFFEF10118B984728FE93FBBF" author="Rabet, N." box="[140,276,1085,1107]" pageId="6" pageNumber="63" pagination="373 - 390" refId="ref4632" refString="Rabet, N. 2010. Revision of the egg morphology of Eulimnadia (Crustacea, Branchiopoda, Spinicaudata). Zoosystema 32: 373 - 390." type="journal article" year="2010">Rabet, 2010</bibRefCitation>
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||
;
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||
<bibRefCitation id="EF804B3FFFEF10118A3F4728FD88FBBF" author="Rogers, D. C. & Rabet, N & Weeks, S. C." box="[299,527,1085,1107]" pageId="6" pageNumber="63" pagination="827 - 842" refId="ref4714" refString="Rogers, D. C., Rabet, N, and Weeks, S. C. 2012. Revision of the extant genera of Limnadiidae (Branchiopoda: Spinicaudata). Journal of Crustacean Biology 32: 827 - 842." type="journal article" year="2012">Rogers et al., 2012</bibRefCitation>
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;
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||
<bibRefCitation id="EF804B3FFFEF101189324728FD44FBBE" author="Timms, B. V." box="[550,707,1085,1107]" pageId="6" pageNumber="63" pagination="351 - 389" refId="ref4907" refString="Timms, B. V. 2016 a. A partial revision of the Australian Eulimnadia Packard, 1874 (Branchiopoda: Spinicaudata: Limnadiidae). Zootaxa 4066: 351 - 389." type="journal article" year="2016">Timms, 2016a</bibRefCitation>
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) and
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||
<taxonomicName id="4C114D4DFFEF10118B98474FFE42FB9D" authority="(Timms, 2016 b)" baseAuthorityName="Timms" baseAuthorityYear="2016" box="[140,453,1114,1136]" class="Branchiopoda" family="Limnadiidae" genus="Paralimnadia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="genus">
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<emphasis id="B965EADCFFEF10118B98474FFE9DFB82" box="[140,282,1114,1135]" italics="true" pageId="6" pageNumber="63">Paralimnadia</emphasis>
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(
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<bibRefCitation id="EF804B3FFFEF10118A3C474FFE39FB9D" author="Timms, B. V." box="[296,446,1114,1136]" pageId="6" pageNumber="63" pagination="451 - 508" refId="ref4941" refString="Timms, B. V. 2016 b. A review of the Australian endemic clam shrimp, Paralimnadia Sars 1896 (Crustacea: Branchiopoda: Spinicaudata). Zootaxa 4161: 451 - 508." type="journal article" year="2016">Timms, 2016b</bibRefCitation>
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)
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||
</taxonomicName>
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||
. The next most reliable species indicator in both genera is the nature of the cercopod setae. Both
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||
<taxonomicName id="4C114D4DFFEF10118BD64781FEBCFB45" authorityName="Timms" authorityYear="2015" box="[194,315,1171,1193]" class="Branchiopoda" family="Limnadiidae" genus="Eulimnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="species" species="palustera">
|
||
<emphasis id="B965EADCFFEF10118BD64781FEBCFB45" box="[194,315,1171,1193]" italics="true" pageId="6" pageNumber="63">P. palustera</emphasis>
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||
</taxonomicName>
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||
and
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||
<taxonomicName id="4C114D4DFFEF10118A7C4781FE63FB45" baseAuthorityName="Brady" baseAuthorityYear="1886" box="[360,484,1171,1193]" class="Branchiopoda" family="Limnadiidae" genus="Limnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="species" species="rivolensis">
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||
<emphasis id="B965EADCFFEF10118A7C4781FE63FB45" box="[360,484,1171,1193]" italics="true" pageId="6" pageNumber="63">P. rivolensis</emphasis>
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||
</taxonomicName>
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||
have about 8 medium length (i.e. 1–2× cercopod diameter) setae (cf. fig.
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and figs 1–3). Again, both species have about 21 telsonic spines, although spacing is different in the two species. In
|
||
<taxonomicName id="4C114D4DFFEF1011896B47FEFD7CFB12" baseAuthorityName="Brady" baseAuthorityYear="1886" box="[639,763,1258,1280]" class="Branchiopoda" family="Limnadiidae" genus="Limnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="species" species="rivolensis">
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<emphasis id="B965EADCFFEF1011896B47FEFD7CFB12" box="[639,763,1258,1280]" italics="true" pageId="6" pageNumber="63">P. rivolensis</emphasis>
|
||
</taxonomicName>
|
||
, all are evenly sized and spaced, except for the first three, which are larger and more spaced. In
|
||
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|
||
<emphasis id="B965EADCFFEF10118AD74630FDBAFAD4" box="[451,573,1316,1338]" italics="true" pageId="6" pageNumber="63">P. palustera</emphasis>
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||
</taxonomicName>
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, the telsonic spines are mixed in size (cf. fig
|
||
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and figs 1–3). Two characters generally of poor differentiating ability are the first antennae and rostrum, although in these two species, there are only minor differences (cf. fig
|
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Timms and figs 1–3).
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</paragraph>
|
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<paragraph id="8BAE36CEFFEF10118BA646A0FC85F922" blockId="6.[138,772,622,1743]" pageId="6" pageNumber="63">
|
||
The claspers are somewhat different between the two species.
|
||
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|
||
<emphasis id="B965EADCFFEF10118BF046C7FEE5FA0A" box="[228,354,1490,1511]" italics="true" pageId="6" pageNumber="63">P. palustera</emphasis>
|
||
</taxonomicName>
|
||
has a distinct hamulus medially on the hand (endite IV), while
|
||
<taxonomicName id="4C114D4DFFEF10118A9646FAFD86F9E9" baseAuthorityName="Brady" baseAuthorityYear="1886" box="[386,513,1519,1540]" class="Branchiopoda" family="Limnadiidae" genus="Limnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="species" species="rivolensis">
|
||
<emphasis id="B965EADCFFEF10118A9646FAFD86F9E9" box="[386,513,1519,1540]" italics="true" pageId="6" pageNumber="63">P. rivolensis</emphasis>
|
||
</taxonomicName>
|
||
has just a slight swelling there. The palps are variable, with 3 palpomeres in the
|
||
<typeStatus id="54AA886CFFEF10118B98453CFE91F9D2" box="[140,278,1577,1599]" pageId="6" pageNumber="63" type="paralectotype">paralectotype</typeStatus>
|
||
of
|
||
<taxonomicName id="4C114D4DFFEF10118A54453CFE46F9D3" baseAuthorityName="Brady" baseAuthorityYear="1886" box="[320,449,1577,1598]" class="Branchiopoda" family="Limnadiidae" genus="Limnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="species" species="rivolensis">
|
||
<emphasis id="B965EADCFFEF10118A54453CFE46F9D3" box="[320,449,1577,1598]" italics="true" pageId="6" pageNumber="63">P. rivolensis</emphasis>
|
||
</taxonomicName>
|
||
, but only 2 indistinct ones in most other specimens examined.
|
||
<taxonomicName id="4C114D4DFFEF10118AF04553FDE6F9B7" authorityName="Timms" authorityYear="2015" box="[484,609,1605,1627]" class="Branchiopoda" family="Limnadiidae" genus="Eulimnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="species" species="palustera">
|
||
<emphasis id="B965EADCFFEF10118AF04553FDE6F9B7" box="[484,609,1605,1627]" italics="true" pageId="6" pageNumber="63">P. palustera</emphasis>
|
||
</taxonomicName>
|
||
generally has 3 palpomeres but may have the second division indistinct or incomplete. Sometimes there are spines at palpomere junction
|
||
<quantity id="4CE99B2BFFEF10118B994589FF48F95F" box="[141,207,1692,1714]" metricMagnitude="-2" metricUnit="m" metricValue="3.81" metricValueMax="5.08" metricValueMin="2.54" pageId="6" pageNumber="63" unit="in" value="1.5" valueMax="2.0" valueMin="1.0">1–2 in</quantity>
|
||
<emphasis id="B965EADCFFEF10118BCC4588FEE7F95C" box="[216,352,1692,1714]" italics="true" pageId="6" pageNumber="63">
|
||
<taxonomicName id="4C114D4DFFEF10118BCC4588FEDBF95C" baseAuthorityName="Brady" baseAuthorityYear="1886" box="[216,348,1692,1714]" class="Branchiopoda" family="Limnadiidae" genus="Limnadia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="63" phylum="Arthropoda" rank="species" species="rivolensis">P. rivolensis</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
Similar variability has sometimes been observed in a few other
|
||
<taxonomicName id="4C114D4DFFEF10118A6A45ACFD79F922" box="[382,766,1721,1743]" pageId="6" pageNumber="63">
|
||
<emphasis id="B965EADCFFEF10118A6A45ACFD8BF923" box="[382,524,1721,1742]" italics="true" pageId="6" pageNumber="63">Paralimnadia</emphasis>
|
||
species (
|
||
<bibRefCitation id="EF804B3FFFEF1011897C45ACFD70F922" author="Timms, B. V." box="[616,759,1721,1743]" pageId="6" pageNumber="63" pagination="451 - 508" refId="ref4941" refString="Timms, B. V. 2016 b. A review of the Australian endemic clam shrimp, Paralimnadia Sars 1896 (Crustacea: Branchiopoda: Spinicaudata). Zootaxa 4161: 451 - 508." type="journal article" year="2016">Timms 2016b</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8BAE36CEFFEF10118B9845F0FB26FE08" blockId="6.[138,770,1765,1903]" lastBlockId="6.[809,1443,229,485]" pageId="6" pageNumber="63">
|
||
<emphasis id="B965EADCFFEF10118B9845F0FE8CF917" box="[140,267,1765,1786]" italics="true" pageId="6" pageNumber="63">Distribution.</emphasis>
|
||
South-western
|
||
<collectingRegion id="49D5F82CFFEF10118AA445F3FDEAF916" box="[432,621,1765,1787]" country="Australia" name="Western Australia" pageId="6" pageNumber="63">Western Australia</collectingRegion>
|
||
, south-eastern
|
||
<collectingRegion id="49D5F82CFFEF10118B984417FEA8F8F5" box="[140,303,1794,1816]" country="Australia" name="South Australia" pageId="6" pageNumber="63">South Australia</collectingRegion>
|
||
, southern
|
||
<collectingRegion id="49D5F82CFFEF10118A894417FE68F8F5" box="[413,495,1794,1816]" country="Australia" name="Victoria" pageId="6" pageNumber="63">Victoria</collectingRegion>
|
||
and
|
||
<collectingRegion id="49D5F82CFFEF101189334417FD0CF8F5" box="[551,651,1794,1816]" country="Australia" name="Tasmania" pageId="6" pageNumber="63">Tasmania</collectingRegion>
|
||
. There is a single record from central
|
||
<collectingCountry id="F306765EFFEF10118A80440AFE74F8D8" box="[404,499,1823,1845]" name="Australia" pageId="6" pageNumber="63">Australia</collectingCountry>
|
||
, which is difficult to accept considering the prominent maritime distribution across southern
|
||
<collectingCountry id="F306765EFFEF10118B9E444CFF6EF882" box="[138,233,1881,1903]" name="Australia" pageId="6" pageNumber="63">Australia</collectingCountry>
|
||
. It has not been collected in
|
||
<collectingRegion id="49D5F82CFFEF10118902444CFDEFF882" box="[534,616,1881,1903]" country="Australia" name="Victoria" pageId="6" pageNumber="63">Victoria</collectingRegion>
|
||
since 1910, its habitat in the swamps of eastern Port Philip Bay being drained and urbanised in the early 1900s. Widespread drainage in the south-east of
|
||
<collectingRegion id="49D5F82CFFEF101188AC4235FBDFFEDB" box="[952,1112,288,310]" country="Australia" name="South Australia" pageId="6" pageNumber="63">South Australia</collectingRegion>
|
||
seems to have denied it habitat there. The most recent collection from near the
|
||
<typeStatus id="54AA886CFFEF10118E1E4228FAB1FEBF" box="[1290,1334,317,338]" pageId="6" pageNumber="63">type</typeStatus>
|
||
locality is dated 1975, and my expeditions there in the spring of 2010 and winter of 2016 were unsuccessful. Sites in central
|
||
<collectingRegion id="49D5F82CFFEF10118E544262FA27FE60" box="[1344,1440,375,397]" country="Australia" name="Tasmania" pageId="6" pageNumber="63">Tasmania</collectingRegion>
|
||
seem (as of
|
||
<date id="FFAF100EFFEF101188B04280FB99FE46" box="[932,1054,405,427]" pageId="6" pageNumber="63" value="2018-03">March 2018</date>
|
||
) also to be drained, so that perhaps it now only occurs in refuges of Flinders Island, Kangaroo Island and south-western
|
||
<collectingRegion id="49D5F82CFFEF101188F142C5FB1BFE08" box="[997,1180,463,485]" country="Australia" name="Western Australia" pageId="6" pageNumber="63">Western Australia</collectingRegion>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |