treatments-xml/data/03/D8/87/03D887D2EF058732C904FA27FC175DD3.xml

<document id="1C5512E28426DE3BDFB824A568FC42FA" ID-DOI="10.1080/00222933.2010.488752" ID-ISSN="1464-5262" ID-Zenodo-Dep="5210553" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629165577296" checkinUser="felipe" docAuthor="Bekker, Eugeniya I., Kotov, Alexey A. &amp; Elmoor-Loureiro, Lourdes M. A." docDate="2010" docId="03D887D2EF058732C904FA27FC175DD3" docLanguage="en" docName="JNatHist.44.41-42.2481-2508.pdf" docOrigin="Journal of Natural History 44 (41 - 42)" docSource="http://dx.doi.org/10.1080/00222933.2010.488752" docStyle="DocumentStyle:DE8A86AD4006EFA56F95B2AAEFBF2813.5:JNatHist.2008-2012.journal_article.2cover" docStyleId="DE8A86AD4006EFA56F95B2AAEFBF2813" docStyleName="JNatHist.2008-2012.journal_article.2cover" docStyleVersion="5" docTitle="Eurycercus (Bullatifrons) meridionalis Bekker &amp; Kotov &amp; Elmoor-Loureiro 2010, sp. nov." docType="treatment" docVersion="3" lastPageNumber="2495" masterDocId="FFE1FFAAEF008722C874FF83FF9B5C44" masterDocTitle="The genus Eurycercus Baird, 1843 (Cladocera: Eurycercidae) in the Neotropics" masterLastPageNumber="2508" masterPageNumber="2481" pageNumber="2484" updateTime="1699063843930" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="EC3D24EE51396F3AB7F7A599E50BC531">The genus Eurycercus Baird, 1843 (Cladocera: Eurycercidae) in the Neotropics</mods:title>
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<mods:namePart id="548EF14F5F3E00B20002C78DB39190C9">Kotov, Alexey A.</mods:namePart>
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<mods:title id="B2707CE169C6EB9C6152FF5A9B5B7D57">Journal of Natural History</mods:title>
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<mods:date id="2DA7A5BEE6168467C748319E1B8B18E1">2010</mods:date>
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<subSubSection id="C36B654FEF058727C904FA27FCF459F8" box="[368,879,1444,1468]" pageId="5" pageNumber="2484" type="nomenclature">
<paragraph id="8BCE36C4EF058727C904FA27FCF459F8" blockId="5.[368,879,1444,1500]" box="[368,879,1444,1468]" pageId="5" pageNumber="2484">
<heading id="D08681A8EF058727C904FA27FCF459F8" box="[368,879,1444,1468]" centered="true" fontSize="36" level="2" pageId="5" pageNumber="2484" reason="7">
<emphasis id="B905EAD6EF058727C904FA27FCF459F8" bold="true" box="[368,879,1444,1468]" pageId="5" pageNumber="2484">
<taxonomicName id="4C714D47EF058727C904FA27FC8E59F8" ID-CoL="3D3KH" authority="Bekker &amp; Kotov &amp; Elmoor-Loureiro, 2010" authorityName="Bekker &amp; Kotov &amp; Elmoor-Loureiro" authorityYear="2010" box="[368,789,1444,1468]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="2484" phylum="Arthropoda" rank="species" species="meridionalis" status="sp. nov." subGenus="Bullatifrons">
<emphasis id="B905EAD6EF058727C904FA27FE7759F8" bold="true" box="[368,492,1444,1468]" italics="true" pageId="5" pageNumber="2484">Eurycercus</emphasis>
(
<emphasis id="B905EAD6EF058727C988FA27FDE459F8" bold="true" box="[508,639,1444,1468]" italics="true" pageId="5" pageNumber="2484">Bullatifrons</emphasis>
) 
<emphasis id="B905EAD6EF058727CAFAFA27FC8E59F8" bold="true" box="[654,789,1444,1468]" italics="true" pageId="5" pageNumber="2484">meridionalis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23657ADEF058727CB68FA27FCF459F8" box="[796,879,1444,1468]" pageId="5" pageNumber="2484" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C36B654FEF058727CA51FA47FD205998" box="[549,699,1476,1500]" pageId="5" pageNumber="2484" type="description">
<paragraph id="8BCE36C4EF058727CA51FA47FD205998" blockId="5.[368,879,1444,1500]" box="[549,699,1476,1500]" pageId="5" pageNumber="2484">
(
<figureCitation id="134A2A41EF058727CA58FA47FD285998" box="[556,691,1476,1500]" captionStart-0="Figure 2" captionStart-1="Figure 3" captionStart-2="Figure 4" captionStart-3="Figure 5" captionStart-4="Figure 6" captionStart-5="Figure 7" captionStartId-0="8.[212,279,1646,1668]" captionStartId-1="9.[142,209,1296,1318]" captionStartId-2="11.[144,211,1299,1321]" captionStartId-3="12.[212,279,1003,1025]" captionStartId-4="13.[144,211,1469,1491]" captionStartId-5="15.[144,211,1136,1158]" captionTargetBox-0="[222,1161,170,1631]" captionTargetBox-1="[145,1102,173,1272]" captionTargetBox-2="[145,1102,172,1267]" captionTargetBox-3="[213,1170,171,971]" captionTargetBox-4="[145,1102,171,1438]" captionTargetBox-5="[145,1102,171,1104]" captionTargetId-0="figure-42@8.[222,1162,169,1632]" captionTargetId-1="figure-172@9.[145,1102,173,1272]" captionTargetId-2="figure-168@11.[145,1102,172,1267]" captionTargetId-3="figure-307@12.[213,1170,171,971]" captionTargetId-4="figure-116@13.[145,1102,171,1438]" captionTargetId-5="figure-165@15.[145,1102,171,1105]" captionTargetPageId-0="8" captionTargetPageId-1="9" captionTargetPageId-2="11" captionTargetPageId-3="12" captionTargetPageId-4="13" captionTargetPageId-5="15" captionText-0="Figure 2. Eurycercus meridionalis sp. nov., parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A–D) Optical photographs of adult, dorsal." captionText-1="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." captionText-2="Figure 4. Eurycercus meridionalis sp. nov., postabdomen of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (B,C,F,G,I,K) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (A,D,E,H). (A–C) Lateral view; (D) basal portion of preanal margin; (E) middle portion of preanal margin; (F–H) distal portion of postabdomen; (I,J) armature of postanal and anal margins; (K) spines on postanal portion. Scale bars: 0.1 mm." captionText-3="Figure 5. Eurycercus meridionalis sp. nov., antenna I and II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A–C,F,G) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (D,E). (A) Antenna I; (B,C) antenna II, anterior and external view; (D) its coxal portion; (E,F) spine on basal segment of exopod; (G) apical “swimming” seta. Scale bars: 0.1 mm." captionText-4="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." captionText-5="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi-0="http://doi.org/10.5281/zenodo.5210557" figureDoi-1="http://doi.org/10.5281/zenodo.5210559" figureDoi-2="http://doi.org/10.5281/zenodo.5210561" figureDoi-3="http://doi.org/10.5281/zenodo.5210563" figureDoi-4="http://doi.org/10.5281/zenodo.5210565" figureDoi-5="http://doi.org/10.5281/zenodo.5210567" httpUri-0="https://zenodo.org/record/5210557/files/figure
)
</paragraph>
</subSubSection>
<subSubSection id="C36B654FEF058727C8E4F98FFB8E5A60" box="[144,1045,1548,1572]" pageId="5" pageNumber="2484" type="reference_group">
<paragraph id="8BCE36C4EF058727C8E4F98FFB8E5A60" blockId="5.[144,1045,1548,1572]" box="[144,1045,1548,1572]" pageId="5" pageNumber="2484">
<treatmentCitationGroup id="AB6111EAEF058727C8E4F98FFB8E5A60" box="[144,1045,1548,1572]" pageId="5" pageNumber="2484">
<taxonomicName id="4C714D47EF058727C8E4F98FFD825A60" ID-CoL="6HF72" authority="O. F. Muller" authorityName="O. F. Muller" box="[144,537,1548,1572]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="2484" phylum="Arthropoda" rank="species" species="lamellatus">
<emphasis id="B905EAD6EF058727C8E4F98FFE185A60" box="[144,387,1548,1572]" italics="true" pageId="5" pageNumber="2484">Eurycercus lamellatus</emphasis>
O. F. Müller
</taxonomicName>
in 
<treatmentCitation id="0AD010D5EF058727CA48F98FFC085A60" author="Montu M &amp; Gloeden IM" box="[572,915,1548,1572]" page="46" pageId="5" pageNumber="2484" year="1986">
<bibRefCitation id="EFE04B35EF058727CA48F98FFC085A60" author="Montu M &amp; Gloeden IM" box="[572,915,1548,1572]" pageId="5" pageNumber="2484" pagination="1 - 134" refId="ref12657" refString="Montu M, Gloeden IM. 1986. Atlas dos Cladocera and Copepoda (Crustacea) do estuario da Lagoa dos Patos (Rio Grande, Brasil). Neritica 1 (2): 1 - 134." type="journal article" year="1986">Montú and Gloeden, 1986: 46</bibRefCitation>
</treatmentCitation>
, figs 13e–g.
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</paragraph>
</subSubSection>
<subSubSection id="C36B654FEF058732C8E4F9D7FC175DD3" lastPageId="16" lastPageNumber="2495" pageId="5" pageNumber="2484" type="etymology">
<paragraph id="8BCE36C4EF058727C8E4F9D7FE925A28" blockId="5.[144,265,1620,1644]" box="[144,265,1620,1644]" pageId="5" pageNumber="2484">
<emphasis id="B905EAD6EF058727C8E4F9D7FE925A28" box="[144,265,1620,1644]" italics="true" pageId="5" pageNumber="2484">Etymology</emphasis>
</paragraph>
<paragraph id="8BCE36C4EF058724C8E4F9FFFEFF5CFB" blockId="5.[144,928,1660,1684]" lastBlockId="6.[212,356,167,191]" lastPageId="6" lastPageNumber="2485" pageId="5" pageNumber="2484">
The species name is an adjective referring to its southern distribution. 
<emphasis id="B905EAD6EF068724C8A0FF24FEFF5CFB" box="[212,356,167,191]" italics="true" pageId="6" pageNumber="2485">
<typeStatus id="54CA8866EF068724C8A0FF24FE975CFB" box="[212,268,167,191]" pageId="6" pageNumber="2485">Type</typeStatus>
locality
</emphasis>
</paragraph>
<paragraph id="8BCE36C4EF068724C8A0FF4CFE665D63" blockId="6.[212,1172,207,615]" pageId="6" pageNumber="2485">
<materialsCitation id="3B193C99EF068724C8A0FF4CFE625D63" collectingDate="2001-12-29" collectorName="L. M. A. Elmoor-Loureiro" country="Brazil" county="The" latitude="-32.6408" location="Canal de Sarita" longLatPrecision="5" longitude="-52.62333" municipality="Estacao Ecologica do Taim" pageId="6" pageNumber="2485" specimenCount="1" stateProvince="Rio Grande do Sul">
<location id="8EAE601FEF068724C8A0FF4CFE1E5CA3" LSID="urn:lsid:plazi:treatment:03D887D2EF058732C904FA27FC175DD3:8EAE601FEF068724C8A0FF4CFE1E5CA3" box="[212,389,207,231]" country="Brazil" county="The" latitude="-32.6408" longLatPrecision="5" longitude="-52.62333" municipality="Estacao Ecologica do Taim" name="Canal de Sarita" pageId="6" pageNumber="2485" stateProvince="Rio Grande do Sul">Canal de Sarita</location>
, 
<collectingMunicipality id="6BAAACBEEF068724C9E4FF53FD525CA3" box="[400,713,207,231]" pageId="6" pageNumber="2485">Estação Ecológica do Taim</collectingMunicipality>
, 
<collectingRegion id="49B5F826EF068724CAA7FF4CFC375CA3" box="[723,940,207,231]" country="Brazil" name="Rio Grande do Sul" pageId="6" pageNumber="2485">Rio Grande do Sul</collectingRegion>
, 
<collectingCountry id="F3667654EF068724CBC3FF4CFC655CA3" box="[951,1022,207,231]" name="Brazil" pageId="6" pageNumber="2485">Brazil</collectingCountry>
, coordinates: 
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, 
<geoCoordinate id="EE455003EF068724C92AFF6CFE695D43" box="[350,498,239,263]" degrees="52.62333" direction="west" orientation="longitude" pageId="6" pageNumber="2485" precision="1" value="-52.62333">52.62333° W</geoCoordinate>
. 
<collectingCounty id="62AF4E48EF068724CA76FF6CFDB55D43" box="[514,558,239,263]" pageId="6" pageNumber="2485">The</collectingCounty>
<typeStatus id="54CA8866EF068724CA4EFF73FDF05D4C" box="[570,619,240,264]" pageId="6" pageNumber="2485">type</typeStatus>
series was collected on 
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<collectingDate id="EF8BE9ECEF068724CBE4FF6CFBF05D43" box="[912,1131,239,263]" pageId="6" pageNumber="2485" value="2001-12-29">29 December 2001</collectingDate>
</date>
by 
<collectorName id="26845312EF068724C8A0FE8CFE625D63" box="[212,505,271,295]" pageId="6" pageNumber="2485">L.M.A. Elmoor-Loureiro</collectorName>
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.
</paragraph>
<paragraph id="8BCE36C4EF068724C88AFEACFD4E5E23" blockId="6.[212,1172,207,615]" pageId="6" pageNumber="2485">
The Estação Ecológica do Taim is located within a larger area called the Taim Hydrological System, at the extreme south of 
<collectingCountry id="F3667654EF068724CA8CFECCFCA05D23" box="[760,827,335,359]" name="Brazil" pageId="6" pageNumber="2485">Brazil</collectingCountry>
(32°30′ to 
<geoCoordinate id="EE455003EF068724CBB7FECCFB805D23" box="[963,1051,334,359]" degrees="32" direction="south" minutes="40" orientation="latitude" pageId="6" pageNumber="2485" precision="925" value="-32.666668">32°40′S</geoCoordinate>
, 52°20′ to 
<geoCoordinate id="EE455003EF068724C8A0FEECFEA45DC3" box="[212,319,366,391]" degrees="52" direction="west" minutes="40" orientation="longitude" pageId="6" pageNumber="2485" precision="925" value="-52.666668">52°40′ W</geoCoordinate>
). The reserve encompasses a variety of habitats such as beaches, dunes, forests, grasslands and, especially, lakes and wetlands. The complex of lakes and wetlands is locally known as “banhado”, where the emergent macrophytes could cover more than 30% of the area, with predominance of 
<taxonomicName id="4C714D47EF068724CB2DFE4CFBA85DA3" box="[857,1075,463,487]" class="Liliopsida" family="Cyperaceae" genus="Scirpus" kingdom="Plantae" order="Poales" pageId="6" pageNumber="2485" phylum="Tracheophyta" rank="species" species="californicus">
<emphasis id="B905EAD6EF068724CB2DFE4CFBA85DA3" box="[857,1075,463,487]" italics="true" pageId="6" pageNumber="2485">Scirpus californicus</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C714D47EF068724CC35FE4CFEA65E43" class="Liliopsida" family="Cyperaceae" genus="Scirpus" kingdom="Plantae" order="Poales" pageId="6" pageNumber="2485" phylum="Tracheophyta" rank="species" species="giganteus">
<emphasis id="B905EAD6EF068724CC35FE4CFEA65E43" italics="true" pageId="6" pageNumber="2485">Scirpus giganteus</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C714D47EF068724C90BFE6CFD1D5E43" box="[383,646,495,519]" class="Liliopsida" family="Poaceae" genus="Zizaniopsis" kingdom="Plantae" order="Poales" pageId="6" pageNumber="2485" phylum="Tracheophyta" rank="species" species="bonariensis">
<emphasis id="B905EAD6EF068724C90BFE6CFD1D5E43" box="[383,646,495,519]" italics="true" pageId="6" pageNumber="2485">Zizaniopsis bonariensis</emphasis>
</taxonomicName>
; among the fluctuant macrophytes, 
<taxonomicName id="4C714D47EF068724CC4EFE6CFEB75E63" class="Polypodiopsida" family="Salviniaceae" genus="Salvinia" kingdom="Plantae" order="Salviniales" pageId="6" pageNumber="2485" phylum="Tracheophyta" rank="species" species="herzogii">
<emphasis id="B905EAD6EF068724CC4EFE6CFEB75E63" italics="true" pageId="6" pageNumber="2485">Salvinia herzogii</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C714D47EF068724C94FFD8CFD9C5E63" box="[315,519,527,551]" class="Polypodiopsida" family="Salviniaceae" genus="Azolla" kingdom="Plantae" order="Salviniales" pageId="6" pageNumber="2485" phylum="Tracheophyta" rank="species" species="caroliniana">
<emphasis id="B905EAD6EF068724C94FFD8CFD9C5E63" box="[315,519,527,551]" italics="true" pageId="6" pageNumber="2485">Azolla caroliniana</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C714D47EF068724CA36FD8CFC955E63" box="[578,782,527,551]" class="Polypodiopsida" family="Marsileaceae" genus="Lemma" kingdom="Plantae" order="Salviniales" pageId="6" pageNumber="2485" phylum="Tracheophyta" rank="species" species="valdiviana">
<emphasis id="B905EAD6EF068724CA36FD8CFC955E63" box="[578,782,527,551]" italics="true" pageId="6" pageNumber="2485">Lemma valdiviana</emphasis>
</taxonomicName>
are the most frequent (
<bibRefCitation id="EFE04B35EF068724CC68FD8CFB135E63" author="Paz AR" box="[1052,1160,527,551]" pageId="6" pageNumber="2485" refId="ref12826" refString="Paz AR. 2003. Analise dos principais fatores intervenientes no comportamento hidrodinamico do banhado do Taim (RS) [Master thesis]. [Porto Alegre (Rio Grande do Sul)]: Universidade Federal do Rio Grande do Sul." type="book" year="2003">Paz 2003</bibRefCitation>
). The climate of the region is subtropical humid or 
<typeStatus id="54CA8866EF068724CB7CFDB3FCA35E0C" box="[776,824,560,584]" pageId="6" pageNumber="2485">type</typeStatus>
Cfa, according to the Köppen classification (
<bibRefCitation id="EFE04B35EF068724C900FDCCFD525E23" author="Waechter JL &amp; Jarenkow JA" box="[372,713,591,615]" pageId="6" pageNumber="2485" pagination="45 - 69" refId="ref13272" refString="Waechter JL, Jarenkow JA. 1998. Composicao e estrutura do componente arboreo das matas turfosas do Taim, Rio Grande do Sul. Biotemas. 11: 45 - 69." type="journal article" year="1998">Waechter and Jarenkow 1998</bibRefCitation>
).
</paragraph>
<paragraph id="8BCE36C4EF068724C8A0FD14FEF45EEB" blockId="6.[212,367,663,687]" box="[212,367,663,687]" pageId="6" pageNumber="2485">
<emphasis id="B905EAD6EF068724C8A0FD14FEF45EEB" box="[212,367,663,687]" italics="true" pageId="6" pageNumber="2485">Type material</emphasis>
</paragraph>
<paragraph id="8BCE36C4EF068724C8A0FD3CFBE45E93" blockId="6.[212,1151,703,727]" box="[212,1151,703,727]" pageId="6" pageNumber="2485">
<materialsCitation id="3B193C99EF068724C8A0FD3CFBE45E93" box="[212,1151,703,727]" collectionCode="PVL" pageId="6" pageNumber="2485" specimenCode="MNRJ20411" specimenCount="1" typeStatus="holotype">
<emphasis id="B905EAD6EF068724C8A0FD3CFED95E93" box="[212,322,703,727]" italics="true" pageId="6" pageNumber="2485">
<typeStatus id="54CA8866EF068724C8A0FD3CFEA45E93" box="[212,319,703,727]" pageId="6" pageNumber="2485" type="holotype">Holotype</typeStatus>
.
</emphasis>
Adult parthenogenetic female, mounted on a slide in 
<collectionCode id="ED60AE01EF068724CBD5FD43FC425E93" box="[929,985,704,727]" country="Argentina" name="Paleontologia de Vertebrados Lillo" pageId="6" pageNumber="2485">PVL</collectionCode>
, 
<specimenCode id="DBD79EBFEF068724CB90FD3CFBE05E93" box="[996,1147,703,727]" collectionCode="MNRJ" country="Brazil" httpUri="http://grbio.org/cool/zi1i-a0b5" name="Museu Nacional/Universidade Federal de Rio de Janeiro" pageId="6" pageNumber="2485">MNRJ20411</specimenCode>
.
</materialsCitation>
</paragraph>
<paragraph id="8BCE36C4EF068724C8A0FD7CFCDE5F13" blockId="6.[212,1172,767,855]" pageId="6" pageNumber="2485">
<materialsCitation id="3B193C99EF068724C8A0FD7CFC605F53" box="[212,1019,767,791]" collectionCode="MNRJ" pageId="6" pageNumber="2485" specimenCode="MNRJ20410" specimenCount="1" specimenCount-female="1" typeStatus="paratype">
<emphasis id="B905EAD6EF068724C8A0FD7CFED75F53" box="[212,332,767,791]" italics="true" pageId="6" pageNumber="2485">
<typeStatus id="54CA8866EF068724C8A0FD7CFED35F53" box="[212,328,767,791]" pageId="6" pageNumber="2485" type="paratype">Paratypes</typeStatus>
.
</emphasis>
Three females in alcohol, 
<specimenCode id="DBD79EBFEF068724CADEFD7CFCDB5F53" box="[682,832,767,791]" collectionCode="MNRJ" country="Brazil" httpUri="http://grbio.org/cool/zi1i-a0b5" name="Museu Nacional/Universidade Federal de Rio de Janeiro" pageId="6" pageNumber="2485">MNRJ20410</specimenCode>
; 
<specimenCount id="9D77FD4DEF068724CB2DFD7CFC605F53" box="[857,1019,767,791]" pageId="6" pageNumber="2485" type="female">three females</specimenCount>
</materialsCitation>
<materialsCitation id="3B193C99EF068724CC7BFD7CFE5D5F73" collectionCode="MCN" pageId="6" pageNumber="2485" specimenCode="MCN2554" specimenCount="1" specimenCount-adult="1" typeStatus="paratype">
in alcohol, 
<specimenCode id="DBD79EBFEF068724C8A0FC9CFED45F73" box="[212,335,799,823]" collectionCode="MCN" pageId="6" pageNumber="2485">MCN2554</specimenCode>
; 
<specimenCount id="9D77FD4DEF068724C92EFCA3FE5D5F73" box="[346,454,799,823]" pageId="6" pageNumber="2485" type="adult">two adult</specimenCount>
</materialsCitation>
parthenogenetic females, AAK 
<materialsCitation id="3B193C99EF068724CB45FC9CFCDB5F13" collectionCode="EL" pageId="6" pageNumber="2485" specimenCode="EL00890-00900, EL00904" specimenCount="1" typeStatus="paratype">
M-0904; 11 dissected parthenogenetic females on slides 
<specimenCode id="DBD79EBFEF068724C999FCBCFD045F13" box="[493,671,831,855]" collectionCode="EL" pageId="6" pageNumber="2485">EL00890-00900</specimenCode>
and 
<specimenCode id="DBD79EBFEF068724CAA3FCBCFCDB5F13" box="[727,832,831,855]" collectionCode="EL" pageId="6" pageNumber="2485">EL00904</specimenCode>
</materialsCitation>
.
</paragraph>
<paragraph id="8BCE36C4EF068724C8A0FC04FE575FDB" blockId="6.[212,460,903,927]" box="[212,460,903,927]" pageId="6" pageNumber="2485">
<emphasis id="B905EAD6EF068724C8A0FC04FE575FDB" box="[212,460,903,927]" italics="true" pageId="6" pageNumber="2485">Other material studied</emphasis>
</paragraph>
<paragraph id="8BCE36C4EF068724C8A0FC33FCA65843" blockId="6.[212,1172,943,1351]" pageId="6" pageNumber="2485">
<materialsCitation id="3B193C99EF068724C8A0FC33FCA25843" collectingDate="2006-05-12" collectionCode="AAK" collectorName="G. P. Neves &amp; Coordinates" country="Brazil" county="Estado" latitude="-25.53" location="Ten" longLatPrecision="21" longitude="-49.22278" municipality="Curitiba" pageId="6" pageNumber="2485" specimenCount="1" stateProvince="Parana">
<location id="8EAE601FEF068724C8A0FC33FE9B5F83" LSID="urn:lsid:plazi:treatment:03D887D2EF058732C904FA27FC175DD3:8EAE601FEF068724C8A0FC33FE9B5F83" box="[212,256,944,967]" country="Brazil" county="Estado" latitude="-25.53" longLatPrecision="21" longitude="-49.22278" municipality="Curitiba" name="Ten" pageId="6" pageNumber="2485" stateProvince="Parana">Ten</location>
females from an artificial pond caused by sand mining at 
<location id="8EAE601FEF068724CBD4FC33FEB95FAC" LSID="urn:lsid:plazi:treatment:03D887D2EF058732C904FA27FC175DD3:8EAE601FEF068724CBD4FC33FEB95FAC" country="Brazil" county="Estado" latitude="-25.53" longLatPrecision="21" longitude="-49.22278" municipality="Curitiba" name="Parque Municipal do Iguacu" pageId="6" pageNumber="2485" stateProvince="Parana">Parque Municipal do Iguaçu</location>
, 
<collectingMunicipality id="6BAAACBEEF068724C959FC4CFE175FA3" box="[301,396,975,999]" pageId="6" pageNumber="2485">Curitiba</collectingMunicipality>
, 
<collectingCounty id="62AF4E48EF068724C9ECFC4CFE7E5FA3" box="[408,485,975,999]" pageId="6" pageNumber="2485">Estado</collectingCounty>
do 
<collectingRegion id="49B5F826EF068724CA66FC4CFDF85FA3" box="[530,611,975,999]" country="Brazil" name="Parana" pageId="6" pageNumber="2485">Paraná</collectingRegion>
, 
<collectingCountry id="F3667654EF068724CA1BFC4CFD295FA3" box="[623,690,975,999]" name="Brazil" pageId="6" pageNumber="2485">Brazil</collectingCountry>
, collected on 
<date id="FFCF1004EF068724CB3EFC4CFC475FA3" box="[842,988,975,1000]" pageId="6" pageNumber="2485" value="2006-05-12">
<collectingDate id="EF8BE9ECEF068724CB3EFC4CFC475FA3" box="[842,988,975,1000]" pageId="6" pageNumber="2485" value="2006-05-12">12 May 2006</collectingDate>
</date>
by 
<collectorName id="26845312EF068724CC73FC4CFB0B5FA3" box="[1031,1168,975,999]" pageId="6" pageNumber="2485">G. P. Neves</collectorName>
, 
<collectionCode id="ED60AE01EF068724C8A0FC6CFE885843" box="[212,275,1007,1031]" pageId="6" pageNumber="2485">AAK</collectionCode>
M-0905. 
<collectorName id="26845312EF068724C9F4FC6CFD945843" box="[384,527,1007,1031]" pageId="6" pageNumber="2485">Coordinates</collectorName>
: 
<geoCoordinate id="EE455003EF068724CA6DFC6CFD065843" box="[537,669,1006,1031]" degrees="25" direction="south" minutes="31" orientation="latitude" pageId="6" pageNumber="2485" precision="15" seconds="48" value="-25.53">25°31′48″ S</geoCoordinate>
, 
<geoCoordinate id="EE455003EF068724CADDFC6CFCA25843" box="[681,825,1006,1031]" degrees="49" direction="west" minutes="13" orientation="longitude" pageId="6" pageNumber="2485" precision="15" seconds="22" value="-49.22278">49°13′22″ W</geoCoordinate>
</materialsCitation>
.
</paragraph>
<paragraph id="8BCE36C4EF068724C88AFB8CFD7F5903" blockId="6.[212,1172,943,1351]" pageId="6" pageNumber="2485">
The Parque Municipal do Iguaçu, located at the Metropolitan Region of Curitiba, has a complex of natural and artificial ponds, marginal to the upper Iguaçu River; large macrophyte stands, particularly of the genus 
<taxonomicName id="4C714D47EF068724CB7BFBCCFC135823" box="[783,904,1103,1127]" class="Liliopsida" family="Pontederiaceae" genus="Eichhornia" kingdom="Plantae" order="Commelinales" pageId="6" pageNumber="2485" phylum="Tracheophyta" rank="genus">
<emphasis id="B905EAD6EF068724CB7BFBCCFC135823" box="[783,904,1103,1127]" italics="true" pageId="6" pageNumber="2485">Eichhornia</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C714D47EF068724CBB4FBCCFB9A5823" box="[960,1025,1103,1127]" class="Liliopsida" family="Araceae" genus="Pistia" kingdom="Plantae" order="Alismatales" pageId="6" pageNumber="2485" phylum="Tracheophyta" rank="genus">
<emphasis id="B905EAD6EF068724CBB4FBCCFB9A5823" box="[960,1025,1103,1127]" italics="true" pageId="6" pageNumber="2485">Pistia</emphasis>
</taxonomicName>
, occur at the edge of the ponds (
<bibRefCitation id="EFE04B35EF068724C9C6FBECFC9C58C3" author="Abilhoa V &amp; Agostinho AA" box="[434,775,1135,1159]" pageId="6" pageNumber="2485" pagination="23 - 32" refId="ref11325" refString="Abilhoa V, Agostinho AA. 2007. Aspectos biologicos de duas especies de Astyanax (Teleostei, Characidae) em lagoas marginais do alto Rio Iguacu, Parana, Brasil. Estud Biol. 29 (66): 23 - 32." type="journal article" year="2007">Abilhoa and Agostinho 2007</bibRefCitation>
). The specimens of 
<taxonomicName id="4C714D47EF068724CB99FBECFB0858C3" authorityName="Bekker &amp; Kotov &amp; Elmoor-Loureiro" authorityYear="2010" box="[1005,1171,1135,1159]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="2485" phylum="Arthropoda" rank="species" species="meridionalis">
<emphasis id="B905EAD6EF068724CB99FBECFB0858C3" box="[1005,1171,1135,1159]" italics="true" pageId="6" pageNumber="2485">E. meridionalis</emphasis>
</taxonomicName>
were sampled from an artificial pond, formed in a depression in the ground, caused by sand mining. For ponds of Parque Municipal do Iguaçu, 
<bibRefCitation id="EFE04B35EF068724CBF2FB2CFE8158A3" author="Abilhoa V &amp; Agostinho AA" pageId="6" pageNumber="2485" pagination="23 - 32" refId="ref11325" refString="Abilhoa V, Agostinho AA. 2007. Aspectos biologicos de duas especies de Astyanax (Teleostei, Characidae) em lagoas marginais do alto Rio Iguacu, Parana, Brasil. Estud Biol. 29 (66): 23 - 32." type="journal article" year="2007">Abilhoa and Agostinho (2007)</bibRefCitation>
reported pH between 6.8 and 7.8, and concentration of dissolved oxygen between 4.35 and 
<quantity id="4C899B21EF068724C9D4FB6CFE615943" box="[416,506,1263,1287]" metricMagnitude="-6" metricUnit="kg" metricValue="6.73" pageId="6" pageNumber="2485" unit="mg" value="6.73">6.73 mg</quantity>
/l. The climate in both regions is also subtropical humid or 
<typeStatus id="54CA8866EF068724C8A0FA93FE9E596C" box="[212,261,1296,1320]" pageId="6" pageNumber="2485">type</typeStatus>
Cfa, according to the Köppen classification, with mean temperature between 10°C and 22°C (
<bibRefCitation id="EFE04B35EF068724C9FFFAACFD435903" author="Abilhoa V &amp; Agostinho AA" box="[395,728,1327,1351]" pageId="6" pageNumber="2485" pagination="23 - 32" refId="ref11325" refString="Abilhoa V, Agostinho AA. 2007. Aspectos biologicos de duas especies de Astyanax (Teleostei, Characidae) em lagoas marginais do alto Rio Iguacu, Parana, Brasil. Estud Biol. 29 (66): 23 - 32." type="journal article" year="2007">Abilhoa and Agostinho 2007</bibRefCitation>
).
</paragraph>
<paragraph id="8BCE36C4EF068724C8A0FAFBFEDA59D4" blockId="6.[212,321,1400,1424]" box="[212,321,1400,1424]" pageId="6" pageNumber="2485">
<emphasis id="B905EAD6EF068724C8A0FAFBFEDA59D4" box="[212,321,1400,1424]" italics="true" pageId="6" pageNumber="2485">Diagnosis</emphasis>
</paragraph>
<paragraph id="8BCE36C4EF068725C8A0FA23FC115DDB" blockId="6.[212,1172,1439,1688]" lastBlockId="7.[144,1104,167,415]" lastPageId="7" lastPageNumber="2486" pageId="6" pageNumber="2485">
<emphasis id="B905EAD6EF068724C8A0FA23FD8459FC" box="[212,543,1440,1464]" italics="true" pageId="6" pageNumber="2485">Adult parthenogenetic female.</emphasis>
Dorsal margin with a dorsal bubble bearing head pores. In anterior view, body wide, median dorsal keel absent. Rostrum short; posterior portion of head shield with a distinct straight section of the margin immediately anterior to the point of mandibular articulation; lateral pores elongated. Labral keel medium-sized, terminating in a broadly rounded apex. Postabdomen with a shallow distal anal embayment, with 102–122 preanal teeth. Teeth at base of preclaw portion short, predominantly clustered (doubled or tripled). Antenna I relatively short, but protruding greatly beyond tip of rostrum; antennular sensory seta arising somewhat basally to antenna I middle; denticles in rows encircling antennular surface specially small. IDL of limb I with three bisegmented setae, among them, a remarkable strong hook-like seta, but not as large as in 
<taxonomicName id="4C714D47EF078725CA45FF64FD715CBB" box="[561,746,231,255]" class="Liliopsida" family="Pontederiaceae" genus="Eichhornia" kingdom="Plantae" order="Commelinales" pageId="7" pageNumber="2486" phylum="Tracheophyta" rank="species" species="macracanthus">
<emphasis id="B905EAD6EF078725CA45FF64FD715CBB" box="[561,746,231,255]" italics="true" pageId="7" pageNumber="2486">E. macracanthus</emphasis>
</taxonomicName>
. IDL supplied with five to nine long distal spinules, six to ten long proximal spinules, four to seven very short marginal spinules and seven to nine short basal spinules. Limb II scraper 5 with 20–25 denticles, scraper 6 with 18–23 denticles, scraper 7 with 19–23 denticles; filter plate with eight setae. Nine setae in filter plate III; eight setae in filter plate IV, eight setae in filter plate V. Intestine with a single loop. Length up to 
<quantity id="4C899B21EF078725CB55FE04FC1C5DDB" box="[801,903,391,415]" metricMagnitude="-3" metricUnit="m" metricValue="2.02" pageId="7" pageNumber="2486" unit="mm" value="2.02">2.02 mm</quantity>
.
</paragraph>
<paragraph id="8BCE36C4EF078725C8E4FE54FE8B5DAB" blockId="7.[144,272,471,495]" box="[144,272,471,495]" pageId="7" pageNumber="2486">
<emphasis id="B905EAD6EF078725C8E4FE54FE8B5DAB" box="[144,272,471,495]" italics="true" pageId="7" pageNumber="2486">Description</emphasis>
</paragraph>
<paragraph id="8BCE36C4EF078725C8E4FE7CFC4E5F73" blockId="7.[144,1104,511,1559]" pageId="7" pageNumber="2486">
<emphasis id="B905EAD6EF078725C8E4FE7CFE005E53" box="[144,411,511,535]" italics="true" pageId="7" pageNumber="2486">Parthenogenetic female.</emphasis>
In lateral view body subovoid in larger females (
<figureCitation id="134A2A41EF078725CBC1FE7CFBD05E53" box="[949,1099,511,535]" captionStart="Figure 2" captionStartId="8.[212,279,1646,1668]" captionTargetBox="[222,1161,170,1631]" captionTargetId="figure-42@8.[222,1162,169,1632]" captionTargetPageId="8" captionText="Figure 2. Eurycercus meridionalis sp. nov., parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A–D) Optical photographs of adult, dorsal." figureDoi="http://doi.org/10.5281/zenodo.5210557" httpUri="https://zenodo.org/record/5210557/files/figure.png" pageId="7" pageNumber="2486">Figures 2A,E</figureCitation>
, 
<figureCitation id="134A2A41EF078725C8E4FD9CFF295E73" box="[144,178,543,567]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="7" pageNumber="2486">3A</figureCitation>
) and subrectangular in small females (
<figureCitation id="134A2A41EF078725CA02FD9CFD635E73" box="[630,760,543,567]" captionStart="Figure 2" captionStartId="8.[212,279,1646,1668]" captionTargetBox="[222,1161,170,1631]" captionTargetId="figure-42@8.[222,1162,169,1632]" captionTargetPageId="8" captionText="Figure 2. Eurycercus meridionalis sp. nov., parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A–D) Optical photographs of adult, dorsal." figureDoi="http://doi.org/10.5281/zenodo.5210557" httpUri="https://zenodo.org/record/5210557/files/figure.png" pageId="7" pageNumber="2486">Figures 2F</figureCitation>
, 
<figureCitation id="134A2A41EF078725CB72FD9CFCB35E73" box="[774,808,543,567]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="7" pageNumber="2486">3B</figureCitation>
), maximum height of the body in its middle portion (BH/BL = 
<quantity id="4C899B21EF078725CA23FDBCFD7D5E13" box="[599,742,575,599]" metricMagnitude="-2" metricUnit="m" metricValue="1.5367" metricValueMax="1.7272" metricValueMin="1.3462" pageId="7" pageNumber="2486" unit="in" value="0.605" valueMax="0.68" valueMin="0.53">0.53–0.68 in</quantity>
juveniles, 
<quantity id="4C899B21EF078725CB1DFDBCFC635E13" box="[873,1016,575,599]" metricMagnitude="-2" metricUnit="m" metricValue="1.5621" metricValueMax="1.7526" metricValueMin="1.3716" pageId="7" pageNumber="2486" unit="in" value="0.615" valueMax="0.69" valueMin="0.54">0.54–0.69 in</quantity>
largest adults). Dorsal margin evenly convex, interrupted only by a bubble-like head pore (
<figureCitation id="134A2A41EF078725C8E3FDFCFE8D5ED3" box="[151,278,639,663]" captionStart="Figure 2" captionStartId="8.[212,279,1646,1668]" captionTargetBox="[222,1161,170,1631]" captionTargetId="figure-42@8.[222,1162,169,1632]" captionTargetPageId="8" captionText="Figure 2. Eurycercus meridionalis sp. nov., parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A–D) Optical photographs of adult, dorsal." figureDoi="http://doi.org/10.5281/zenodo.5210557" httpUri="https://zenodo.org/record/5210557/files/figure.png" pageId="7" pageNumber="2486">Figures 2B</figureCitation>
, 
<figureCitation id="134A2A41EF078725C956FDFCFEDD5ED3" box="[290,326,639,663]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="7" pageNumber="2486">3C</figureCitation>
). Posterodorsal angle expressed, more or less rounded in both adults and juveniles. Posterior margin slightly convex, smoothly rounded, posteroventral angle broadly rounded. In larger adults ventral margin with a slight prominence immediately anterior to the margin middle. In anterior view, body wide, not compressed laterally, maximum width of body at level of mandibular articulation. Median dorsal keel is absent. Parthenogenetic females carry few eggs in the brood pouch.
</paragraph>
<paragraph id="8BCE36C4EF078725C8CEFCBCFC4C59F3" blockId="7.[144,1104,511,1559]" pageId="7" pageNumber="2486">
Head (
<figureCitation id="134A2A41EF078725C97EFCBCFE195F13" box="[266,386,831,855]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="7" pageNumber="2486">Figure 3C</figureCitation>
) large, with dorsal margin regularly arched from rostrum to region of dorsal head pores. Border line between head shield and valves obscure in preserved animals. Rostrum well expressed, short. Frontal head pore as transverse split, located somewhat anteriad to antennule bases on ventral surface of head (
<figureCitation id="134A2A41EF078725C8E3FC3CFE865F93" box="[151,285,959,983]" captionStart="Figure 2" captionStartId="8.[212,279,1646,1668]" captionTargetBox="[222,1161,170,1631]" captionTargetId="figure-42@8.[222,1162,169,1632]" captionTargetPageId="8" captionText="Figure 2. Eurycercus meridionalis sp. nov., parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A–D) Optical photographs of adult, dorsal." figureDoi="http://doi.org/10.5281/zenodo.5210557" httpUri="https://zenodo.org/record/5210557/files/figure.png" pageId="7" pageNumber="2486">Figure 2H,I</figureCitation>
). Compound eye rather large, located near dorsal margin of head markedly closer to rostral extremity than to head pores. Ocellus small, located at antennule base, closer to eye than to tip of rostrum. Head shield little longer than wide (HW/ HL = 
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juveniles, 
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largest adults), with maximum height at level of mandibular articulation. Its anterior portion (= portion anterior to level of mandibular articulation) more than twice as large as posterior one (
<figureCitation id="134A2A41EF078725CBB0FBDCFBD95833" box="[964,1090,1119,1143]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="7" pageNumber="2486">Figure 3D</figureCitation>
), broadly rounded with slightly projected rostral region; posterior portion with a distinct straight section of the margin immediately anterior to the point of mandibular articulation (
<figureCitation id="134A2A41EF078725C953FB3CFE3F5893" box="[295,420,1215,1239]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="7" pageNumber="2486">Figure 3D</figureCitation>
). A single major “head pore” (dorsal organ) as a ringed, suboval field of special cuticle located on a dorsal bubble (
<figureCitation id="134A2A41EF078725CBE9FB5CFBD858B3" box="[925,1091,1247,1271]" captionStart="Figure 2" captionStartId="8.[212,279,1646,1668]" captionTargetBox="[222,1161,170,1631]" captionTargetId="figure-42@8.[222,1162,169,1632]" captionTargetPageId="8" captionText="Figure 2. Eurycercus meridionalis sp. nov., parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A–D) Optical photographs of adult, dorsal." figureDoi="http://doi.org/10.5281/zenodo.5210557" httpUri="https://zenodo.org/record/5210557/files/figure.png" pageId="7" pageNumber="2486">Figures 2B,C</figureCitation>
), MHP = 
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in juveniles, 
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<geoCoordinate id="EE455003EF078725CA5DFB7CFDE95953" box="[553,626,1279,1303]" degrees="0.024" direction="west" orientation="longitude" pageId="7" pageNumber="2486" precision="55" value="-0.024">–0.024</geoCoordinate>
mm
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in largest adults. A minute, elongated ovoid lateral pore located at either side of major pore, closer to it (
<figureCitation id="134A2A41EF078725CB08FA9CFC675973" box="[892,1020,1311,1335]" captionStart="Figure 2" captionStartId="8.[212,279,1646,1668]" captionTargetBox="[222,1161,170,1631]" captionTargetId="figure-42@8.[222,1162,169,1632]" captionTargetPageId="8" captionText="Figure 2. Eurycercus meridionalis sp. nov., parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A–D) Optical photographs of adult, dorsal." figureDoi="http://doi.org/10.5281/zenodo.5210557" httpUri="https://zenodo.org/record/5210557/files/figure.png" pageId="7" pageNumber="2486">Figures 2C</figureCitation>
, 
<figureCitation id="134A2A41EF078725CC73FA9CFBDA5973" box="[1031,1089,1311,1335]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="7" pageNumber="2486">3E,F</figureCitation>
), distance between lateral head pores growing proportionally with growth of head shield (IP/HW = 
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juveniles, 
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largest adults). Head pores “projecting from the rounded head like a bubble with the median pore at the top” is a diagnostic trait of the subgenus 
<taxonomicName id="4C714D47EF078725C98DFA23FDE759FC" authorityName="Frey" authorityYear="1975" box="[505,636,1440,1464]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="2486" phylum="Arthropoda" rank="subGenus" subGenus="Bullatifrons">
<emphasis id="B905EAD6EF078725C98DFA23FDE759FC" box="[505,636,1440,1464]" italics="true" pageId="7" pageNumber="2486">Bullatifrons</emphasis>
</taxonomicName>
according to 
<bibRefCitation id="EFE04B35EF078725CB63FA23FC4859F3" author="Frey DG" box="[791,979,1439,1464]" pageId="7" pageNumber="2486" pagination="263 - 300" refId="ref11795" refString="Frey DG. 1975. Subgeneric differentiation within Eurycercus (Cladocera, Chydoridae) and a new species from Northern Sweden. Hydrobiologia 46: 263 - 300." type="journal article" year="1975">Frey (1975: 293)</bibRefCitation>
.
</paragraph>
<paragraph id="8BCE36C4EF078725C8CEFA3CFBCB5A53" blockId="7.[144,1104,511,1559]" pageId="7" pageNumber="2486">
Labrum as a fleshy body, with a medium-sized median keel, terminating in a broadly rounded apex, keel anterior margin slightly convex, without setulation, posterior margin almost straight. Distal labral plate with rich setulation (
<figureCitation id="134A2A41EF078725CBB8FA7CFBD85A53" box="[972,1091,1535,1559]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="7" pageNumber="2486">Figure 3C</figureCitation>
).
</paragraph>
<paragraph id="8BCE36C4EF078725C8E7F9D5FDB55AE3" blockId="7.[147,1100,1622,1703]" pageId="7" pageNumber="2486">
margin of head, head pores and postabdomen; (E) adult; (F) juvenile; (G) instar variability of postabdomen general shape; (H) head, ventral view; (I) frontal head pore. Scale bars: 
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(A,E–G); 
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(B–D,H); 
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(I).
</paragraph>
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<paragraph id="8BCE36C4EF08872AC8A0F9EDFB0A5AE5" blockId="8.[212,1172,1646,1697]" pageId="8" pageNumber="2487">
Figure 2. 
<taxonomicName id="4C714D47EF08872AC948F9EDFDBA5AC0" authority="Bekker &amp; Kotov &amp; Elmoor-Loureiro, 2010" authorityName="Bekker &amp; Kotov &amp; Elmoor-Loureiro" authorityYear="2010" box="[316,545,1646,1668]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="8" pageNumber="2487" phylum="Arthropoda" rank="species" species="meridionalis" status="sp. nov.">
<emphasis id="B905EAD6EF08872AC948F9EDFDBA5AC0" box="[316,545,1646,1668]" italics="true" pageId="8" pageNumber="2487">Eurycercus meridionalis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23657ADEF08872ACA53F9ECFDEC5AC0" box="[551,631,1647,1668]" pageId="8" pageNumber="2487" rank="species">sp. nov.</taxonomicNameLabel>
, parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A–D) Optical photographs of adult, dorsal.
</paragraph>
</caption>
<caption id="DF0E664CEF09872BC8FAFA93FC4B59FC" ID-DOI="http://doi.org/10.5281/zenodo.5210559" ID-Zenodo-Dep="5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="9" pageNumber="2488" startId="9.[142,209,1296,1318]" targetBox="[145,1102,173,1272]" targetPageId="9">
<paragraph id="8BCE36C4EF09872BC8FAFA93FC4B59FC" blockId="9.[142,1106,1296,1464]" pageId="9" pageNumber="2488">
Figure 3. 
<taxonomicName id="4C714D47EF09872BC882FA93FE7F5962" authority="Bekker &amp; Kotov &amp; Elmoor-Loureiro, 2010" authorityName="Bekker &amp; Kotov &amp; Elmoor-Loureiro" authorityYear="2010" box="[246,484,1296,1318]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="9" pageNumber="2488" phylum="Arthropoda" rank="species" species="meridionalis" status="sp. nov.">
<emphasis id="B905EAD6EF09872BC882FA93FE7F5962" box="[246,484,1296,1318]" italics="true" pageId="9" pageNumber="2488">Eurycercus meridionalis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23657ADEF09872BC99EFA93FDA65961" box="[490,573,1296,1317]" pageId="9" pageNumber="2488" rank="species">sp. nov.</taxonomicNameLabel>
, adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm.
</paragraph>
</caption>
<paragraph id="8BCE36C4EF09872BC8E4FA69FBBE5A66" blockId="9.[144,1104,1514,1698]" pageId="9" pageNumber="2488">
Paired lateral projections on labrum well-developed (
<figureCitation id="134A2A41EF09872BCB7DFA69FC135A46" box="[777,904,1514,1538]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="9" pageNumber="2488">Figure 3G</figureCitation>
), horn-like, with apexes directed anterior. Distinct low fold surrounds base of labrum (
<figureCitation id="134A2A41EF09872BCBD6F989FB835A66" box="[930,1048,1546,1570]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="9" pageNumber="2488">Figure 3C</figureCitation>
).
</paragraph>
<paragraph id="8BCE36C4EF098728C8CEF9A9FBA85D1B" blockId="9.[144,1104,1514,1698]" lastBlockId="10.[212,1172,167,1696]" lastPageId="10" lastPageNumber="2489" pageId="9" pageNumber="2488">
Valves generally ovoid (VL/BL = 
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juveniles, 
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largest adults), with very obscure, almost invisible under optical microscope reticulation. Anteroventral portion of valves slightly prominent anterior, with a special narrow flap (
<figureCitation id="134A2A41EF09872BC8E3F909FEB15AE6" box="[151,298,1674,1698]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="9" pageNumber="2488">Figure 3H–J</figureCitation>
). Continuous row of setae along ventral rim of valves, the anteriormost members short (
<figureCitation id="134A2A41EF0A8728C9E7FF24FD945CFB" box="[403,527,167,191]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="10" pageNumber="2489">Figure 3A</figureCitation>
), setae then sharply increasing in size posterior to the prominence on ventral margin, and finally gradually decreasing in size to posteroventral valve portion. Posteroventral angle with a row of thin spinules, small denticles between them (
<figureCitation id="134A2A41EF0A8728C9FDFE84FDBA5D5B" box="[393,545,263,287]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="10" pageNumber="2489">Figure 3K,L</figureCitation>
). This row continues to ventral portion of posterior margin (
<figureCitation id="134A2A41EF0A8728C946FEA4FE575D7B" box="[306,460,295,319]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="10" pageNumber="2489">Figure 3M,N</figureCitation>
), whereas dorsal portion of posterior margin armed with small, curved, densely located spinules lacking setules between them (
<figureCitation id="134A2A41EF0A8728CBE3FEC4FBBC5D1B" box="[919,1063,327,351]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="10" pageNumber="2489">Figure 3O,P</figureCitation>
).
</paragraph>
<paragraph id="8BCE36C4EF0A8728C88AFEE4FBC65DDB" blockId="10.[212,1172,167,1696]" pageId="10" pageNumber="2489">
Thorax without external traces of segmentation, with six limb pairs. Abdomen thick, no abdominal projections on dorsal part of all segments (
<figureCitation id="134A2A41EF0A8728CBD5FE04FBB95DDB" box="[929,1058,391,415]" captionStart="Figure 2" captionStartId="8.[212,279,1646,1668]" captionTargetBox="[222,1161,170,1631]" captionTargetId="figure-42@8.[222,1162,169,1632]" captionTargetPageId="8" captionText="Figure 2. Eurycercus meridionalis sp. nov., parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A–D) Optical photographs of adult, dorsal." figureDoi="http://doi.org/10.5281/zenodo.5210557" httpUri="https://zenodo.org/record/5210557/files/figure.png" pageId="10" pageNumber="2489">Figures 2A</figureCitation>
, 
<figureCitation id="134A2A41EF0A8728CC5AFE04FBD45DDB" box="[1070,1103,391,415]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="10" pageNumber="2489">3B</figureCitation>
).
</paragraph>
<paragraph id="8BCE36C4EF0A8728C88AFE24FC305FBB" blockId="10.[212,1172,167,1696]" pageId="10" pageNumber="2489">
Postabdomen as a large (PL/TL = 
<quantity id="4C899B21EF0A8728CAF9FE24FC8C5DFB" box="[653,791,423,447]" metricMagnitude="-3" metricUnit="m" metricValue="9.271" metricValueMax="10.16" metricValueMin="8.382" pageId="10" pageNumber="2489" unit="in" value="0.365" valueMax="0.4" valueMin="0.33">0.33–0.40 in</quantity>
juveniles and the same in largest adults), broad (
<collectingCountry id="F3667654EF0A8728C9F6FE44FE3C5D9B" box="[386,423,455,479]" name="Philippines" pageId="10" pageNumber="2489">PH</collectingCountry>
/PL = 
<quantity id="4C899B21EF0A8728C986FE44FDE15D9B" box="[498,634,455,479]" metricMagnitude="-2" metricUnit="m" metricValue="1.524" metricValueMax="1.651" metricValueMin="1.397" pageId="10" pageNumber="2489" unit="in" value="0.6" valueMax="0.65" valueMin="0.55">0.55–0.65 in</quantity>
juveniles, 
<quantity id="4C899B21EF0A8728CA86FE44FCE15D9B" box="[754,890,455,479]" metricMagnitude="-2" metricUnit="m" metricValue="1.3716" metricValueMax="1.4478" metricValueMin="1.2954" pageId="10" pageNumber="2489" unit="in" value="0.54" valueMax="0.57" valueMin="0.51">0.51–0.57 in</quantity>
largest adults), flattened plate with subparallel dorsal and ventral margins (
<figureCitation id="134A2A41EF0A8728CB69FE64FC385DBB" box="[797,931,487,511]" captionStart="Figure 2" captionStartId="8.[212,279,1646,1668]" captionTargetBox="[222,1161,170,1631]" captionTargetId="figure-42@8.[222,1162,169,1632]" captionTargetPageId="8" captionText="Figure 2. Eurycercus meridionalis sp. nov., parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A–D) Optical photographs of adult, dorsal." figureDoi="http://doi.org/10.5281/zenodo.5210557" httpUri="https://zenodo.org/record/5210557/files/figure.png" pageId="10" pageNumber="2489">Figures 2D</figureCitation>
, 
<figureCitation id="134A2A41EF0A8728CBC5FE64FC6C5DBB" box="[945,1015,487,511]" captionStart="Figure 4" captionStartId="11.[144,211,1299,1321]" captionTargetBox="[145,1102,172,1267]" captionTargetId="figure-168@11.[145,1102,172,1267]" captionTargetPageId="11" captionText="Figure 4. Eurycercus meridionalis sp. nov., postabdomen of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (B,C,F,G,I,K) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (A,D,E,H). (A–C) Lateral view; (D) basal portion of preanal margin; (E) middle portion of preanal margin; (F–H) distal portion of postabdomen; (I,J) armature of postanal and anal margins; (K) spines on postanal portion. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210561" httpUri="https://zenodo.org/record/5210561/files/figure.png" pageId="10" pageNumber="2489">4A–C</figureCitation>
). Anus opens distally; hence the whole slightly convex dorsal margin represents the preanal margin of postabdomen. Dorsodistal (preanal) angle well expressed, distal anal embayment shallow, dorsal portion of distal (= anal) margin straight to slightly concave. Postanal angle obtuse, rounded (
<figureCitation id="134A2A41EF0A8728C992FDE4FD195E3B" box="[486,642,615,639]" captionStart="Figure 4" captionStartId="11.[144,211,1299,1321]" captionTargetBox="[145,1102,172,1267]" captionTargetId="figure-168@11.[145,1102,172,1267]" captionTargetPageId="11" captionText="Figure 4. Eurycercus meridionalis sp. nov., postabdomen of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (B,C,F,G,I,K) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (A,D,E,H). (A–C) Lateral view; (D) basal portion of preanal margin; (E) middle portion of preanal margin; (F–H) distal portion of postabdomen; (I,J) armature of postanal and anal margins; (K) spines on postanal portion. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210561" httpUri="https://zenodo.org/record/5210561/files/figure.png" pageId="10" pageNumber="2489">Figures 4F–J</figureCitation>
). Preclaw portion of postabdomen, named as “distal expansion” by 
<bibRefCitation id="EFE04B35EF0A8728C994FD0BFDE35EDB" author="Hann BJ" box="[480,632,647,671]" pageId="10" pageNumber="2489" pagination="2146 - 2157" refId="ref12034" refString="Hann BJ. 1990. Redescription of Eurycercus (Teretifrons) glacialis (Cladocera, Chydoridae), and description of a new species, E. (T.) nigracanthus, from Newfoundland, Canada. Can J Zool. 68: 2146 - 2157." type="journal article" year="1990">Hann (1990)</bibRefCitation>
, as a conical prominence. Ventral margin of postabdomen slightly convex, a conspicuous, chitinized thickening of integument distally to claw base (
<figureCitation id="134A2A41EF0A8728C9D2FD44FDBB5E9B" box="[422,544,711,735]" captionStart="Figure 4" captionStartId="11.[144,211,1299,1321]" captionTargetBox="[145,1102,172,1267]" captionTargetId="figure-168@11.[145,1102,172,1267]" captionTargetPageId="11" captionText="Figure 4. Eurycercus meridionalis sp. nov., postabdomen of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (B,C,F,G,I,K) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (A,D,E,H). (A–C) Lateral view; (D) basal portion of preanal margin; (E) middle portion of preanal margin; (F–H) distal portion of postabdomen; (I,J) armature of postanal and anal margins; (K) spines on postanal portion. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210561" httpUri="https://zenodo.org/record/5210561/files/figure.png" pageId="10" pageNumber="2489">Figure 4G</figureCitation>
). Armature of the preanal margin as a series of preanal teeth (NT = 
<quantity id="4C899B21EF0A8728C913FD64FE575EBB" box="[359,460,743,767]" metricMagnitude="0" metricUnit="m" metricValue="2.2098" metricValueMax="2.4384" metricValueMin="1.9812" pageId="10" pageNumber="2489" unit="in" value="87.0" valueMax="96.0" valueMin="78.0">78–96 in</quantity>
juveniles, 
<quantity id="4C899B21EF0A8728CA3AFD64FD555EBB" box="[590,718,743,767]" metricMagnitude="0" metricUnit="m" metricValue="2.8448" metricValueMax="3.0987999999999998" metricValueMin="2.5907999999999998" pageId="10" pageNumber="2489" unit="in" value="112.0" valueMax="122.0" valueMin="102.0">102–122 in</quantity>
largest adults), slightly and gradually increasing in size in distal direction; a small gap lacking any teeth (
<figureCitation id="134A2A41EF0A8728CBCBFC84FBAE5F5B" box="[959,1077,775,799]" captionStart="Figure 4" captionStartId="11.[144,211,1299,1321]" captionTargetBox="[145,1102,172,1267]" captionTargetId="figure-168@11.[145,1102,172,1267]" captionTargetPageId="11" captionText="Figure 4. Eurycercus meridionalis sp. nov., postabdomen of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (B,C,F,G,I,K) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (A,D,E,H). (A–C) Lateral view; (D) basal portion of preanal margin; (E) middle portion of preanal margin; (F–H) distal portion of postabdomen; (I,J) armature of postanal and anal margins; (K) spines on postanal portion. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210561" httpUri="https://zenodo.org/record/5210561/files/figure.png" pageId="10" pageNumber="2489">Figure 4D</figureCitation>
) at base of postabdominal setae; teeth in middle of preanal margin with sharp tips (
<figureCitation id="134A2A41EF0A8728CC61FCA4FB135F7B" box="[1045,1160,807,831]" captionStart="Figure 4" captionStartId="11.[144,211,1299,1321]" captionTargetBox="[145,1102,172,1267]" captionTargetId="figure-168@11.[145,1102,172,1267]" captionTargetPageId="11" captionText="Figure 4. Eurycercus meridionalis sp. nov., postabdomen of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (B,C,F,G,I,K) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (A,D,E,H). (A–C) Lateral view; (D) basal portion of preanal margin; (E) middle portion of preanal margin; (F–H) distal portion of postabdomen; (I,J) armature of postanal and anal margins; (K) spines on postanal portion. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210561" httpUri="https://zenodo.org/record/5210561/files/figure.png" pageId="10" pageNumber="2489">Figure 4E</figureCitation>
); distalmost tooth considerably larger than the others, located just on dorsodistal angle of postabdomen. On preclaw portion of postabdomen there are crescentic clusters of spines (homologues of lateral setae or postanal teeth of chydorids), distalmost members particularly large, predominantly clustered (
<figureCitation id="134A2A41EF0A8728CB70FC24FC0C5FFB" box="[772,919,935,959]" captionStart="Figure 4" captionStartId="11.[144,211,1299,1321]" captionTargetBox="[145,1102,172,1267]" captionTargetId="figure-168@11.[145,1102,172,1267]" captionTargetPageId="11" captionText="Figure 4. Eurycercus meridionalis sp. nov., postabdomen of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (B,C,F,G,I,K) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (A,D,E,H). (A–C) Lateral view; (D) basal portion of preanal margin; (E) middle portion of preanal margin; (F–H) distal portion of postabdomen; (I,J) armature of postanal and anal margins; (K) spines on postanal portion. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210561" httpUri="https://zenodo.org/record/5210561/files/figure.png" pageId="10" pageNumber="2489">Figure 4I–K</figureCitation>
), teeth at base of preclaw portion short, also predominantly clustered (doubled or triplet). Subparallel rows of minute setules on whole lateral surface of postabdomen.
</paragraph>
<paragraph id="8BCE36C4EF0A8728C88AFB84FE56581B" blockId="10.[212,1172,167,1696]" pageId="10" pageNumber="2489">Postabdominal setae short (about half of preanal margin length), bisegmented, distal segment shorter than basal one and bilaterally setulated. Setae are located on a distinct, nut-like base.</paragraph>
<paragraph id="8BCE36C4EF0A8728C88AFBE4FCE7597B" blockId="10.[212,1172,167,1696]" pageId="10" pageNumber="2489">
Postabdominal claw relatively robust (CL/PL = 
<quantity id="4C899B21EF0A8728CB51FBE4FC34583B" box="[805,943,1127,1151]" metricMagnitude="-3" metricUnit="m" metricValue="7.874" metricValueMax="8.382" metricValueMin="7.366" pageId="10" pageNumber="2489" unit="in" value="0.31" valueMax="0.33" valueMin="0.29">0.29–0.33 in</quantity>
juveniles, 
<quantity id="4C899B21EF0A8728CC5CFBE4FF7158DB" metricMagnitude="-3" metricUnit="m" metricValue="6.985" metricValueMax="7.366" metricValueMin="6.604" pageId="10" pageNumber="2489" unit="in" value="0.275" valueMax="0.29" valueMin="0.26">0.26–0.29 in</quantity>
largest adults); with massive base; weakly and evenly tapered in distal direction, and slightly curved (
<figureCitation id="134A2A41EF0A8728C9CEFB24FDCF58FB" box="[442,596,1191,1215]" captionStart="Figure 4" captionStartId="11.[144,211,1299,1321]" captionTargetBox="[145,1102,172,1267]" captionTargetId="figure-168@11.[145,1102,172,1267]" captionTargetPageId="11" captionText="Figure 4. Eurycercus meridionalis sp. nov., postabdomen of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (B,C,F,G,I,K) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (A,D,E,H). (A–C) Lateral view; (D) basal portion of preanal margin; (E) middle portion of preanal margin; (F–H) distal portion of postabdomen; (I,J) armature of postanal and anal margins; (K) spines on postanal portion. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210561" httpUri="https://zenodo.org/record/5210561/files/figure.png" pageId="10" pageNumber="2489">Figure 4F–H</figureCitation>
). Two pectens of denticles on outer surface of dorsal side of claws (
<figureCitation id="134A2A41EF0A8728C9E0FB44FD96589B" box="[404,525,1223,1247]" captionStart="Figure 4" captionStartId="11.[144,211,1299,1321]" captionTargetBox="[145,1102,172,1267]" captionTargetId="figure-168@11.[145,1102,172,1267]" captionTargetPageId="11" captionText="Figure 4. Eurycercus meridionalis sp. nov., postabdomen of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (B,C,F,G,I,K) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (A,D,E,H). (A–C) Lateral view; (D) basal portion of preanal margin; (E) middle portion of preanal margin; (F–H) distal portion of postabdomen; (I,J) armature of postanal and anal margins; (K) spines on postanal portion. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210561" httpUri="https://zenodo.org/record/5210561/files/figure.png" pageId="10" pageNumber="2489">Figure 4H</figureCitation>
). Two basal spines, first (distal) long (DS/CL = 
<quantity id="4C899B21EF0A8728CC5CFB44FF7158BB" metricMagnitude="-3" metricUnit="m" metricValue="9.652" metricValueMax="11.43" metricValueMin="7.874" pageId="10" pageNumber="2489" unit="in" value="0.38" valueMax="0.45" valueMin="0.31">0.31–0.45 in</quantity>
juveniles, 
<quantity id="4C899B21EF0A8728C917FB64FE7658BB" box="[355,493,1255,1279]" metricMagnitude="-3" metricUnit="m" metricValue="8.636" metricValueMax="9.398" metricValueMin="7.874" pageId="10" pageNumber="2489" unit="in" value="0.33999999999999997" valueMax="0.37" valueMin="0.31">0.31–0.37 in</quantity>
largest adults), second (basal) short (BS/CL = 
<quantity id="4C899B21EF0A8728CC7DFB64FB0F58BB" box="[1033,1172,1255,1279]" metricMagnitude="-3" metricUnit="m" metricValue="4.572" metricValueMax="5.334" metricValueMin="3.81" pageId="10" pageNumber="2489" unit="in" value="0.18" valueMax="0.21" valueMin="0.15">0.15–0.21 in</quantity>
juveniles, 
<quantity id="4C899B21EF0A8728C93CFA84FE4E595B" box="[328,469,1287,1311]" metricMagnitude="-3" metricUnit="m" metricValue="3.81" metricValueMax="4.572" metricValueMin="3.048" pageId="10" pageNumber="2489" unit="in" value="0.15" valueMax="0.18" valueMin="0.12">0.12–0.18 in</quantity>
largest adults; BS/DS = 
<quantity id="4C899B21EF0A8728CA8EFA84FC1C595B" box="[762,903,1287,1311]" metricMagnitude="-2" metricUnit="m" metricValue="1.0668" metricValueMax="1.3208" metricValueMin="0.8128" pageId="10" pageNumber="2489" unit="in" value="0.42" valueMax="0.52" valueMin="0.32">0.32–0.52 in</quantity>
juveniles, 
<quantity id="4C899B21EF0A8728CC72FA84FB08595B" box="[1030,1171,1287,1311]" metricMagnitude="-2" metricUnit="m" metricValue="1.0668" metricValueMax="1.2192" metricValueMin="0.9144" pageId="10" pageNumber="2489" unit="in" value="0.42" valueMax="0.48" valueMin="0.36">0.36–0.48 in</quantity>
largest adults), located dorsally immediately at base of claw.
</paragraph>
<paragraph id="8BCE36C4EF0A8728C88AFAC4FBEC5A5B" blockId="10.[212,1172,167,1696]" pageId="10" pageNumber="2489">
Antenna I (antennule) relatively short (AL/BL = 
<quantity id="4C899B21EF0A8728CB5DFAC4FC29591B" box="[809,946,1351,1375]" metricMagnitude="-3" metricUnit="m" metricValue="2.667" metricValueMax="2.7939999999999996" metricValueMin="2.54" pageId="10" pageNumber="2489" unit="in" value="0.105" valueMax="0.11" valueMin="0.1">0.10–0.11 in</quantity>
juveniles, 
<quantity id="4C899B21EF0A8728CC5CFAC4FF71593B" metricMagnitude="-3" metricUnit="m" metricValue="2.667" metricValueMax="3.048" metricValueMin="2.286" pageId="10" pageNumber="2489" unit="in" value="0.105" valueMax="0.12" valueMin="0.09">0.09–0.12 in</quantity>
largest adults; AL/DA = 2.7–3.0 in adults); with maximal width in basal half, with its distal two-thirds evenly tapering distally (
<figureCitation id="134A2A41EF0A8728CAB4FA04FCAD59DB" box="[704,822,1415,1439]" captionStart="Figure 5" captionStartId="12.[212,279,1003,1025]" captionTargetBox="[213,1170,171,971]" captionTargetId="figure-307@12.[213,1170,171,971]" captionTargetPageId="12" captionText="Figure 5. Eurycercus meridionalis sp. nov., antenna I and II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A–C,F,G) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (D,E). (A) Antenna I; (B,C) antenna II, anterior and external view; (D) its coxal portion; (E,F) spine on basal segment of exopod; (G) apical “swimming” seta. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210563" httpUri="https://zenodo.org/record/5210563/files/figure.png" pageId="10" pageNumber="2489">Figure 5A</figureCitation>
); protruding greatly beyond tip of rostrum (
<figureCitation id="134A2A41EF0A8728C92BFA24FE4359FB" box="[351,472,1447,1471]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="10" pageNumber="2489">Figure 3C</figureCitation>
). Slender antennular sensory seta long (about half antenna I length), arising somewhat basally to antenna I middle (
<figureCitation id="134A2A41EF0A8728CB4AFA44FC2D599B" box="[830,950,1479,1503]" captionStart="Figure 5" captionStartId="12.[212,279,1003,1025]" captionTargetBox="[213,1170,171,971]" captionTargetId="figure-307@12.[213,1170,171,971]" captionTargetPageId="12" captionText="Figure 5. Eurycercus meridionalis sp. nov., antenna I and II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A–C,F,G) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (D,E). (A) Antenna I; (B,C) antenna II, anterior and external view; (D) its coxal portion; (E,F) spine on basal segment of exopod; (G) apical “swimming” seta. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210563" httpUri="https://zenodo.org/record/5210563/files/figure.png" pageId="10" pageNumber="2489">Figure 5A</figureCitation>
). Nine bisegmented aesthetascs, with pointed teeth around them. No setules at anterior margin of antenna I. Numerous short rows of minute denticles encircling antennular surface.
</paragraph>
<paragraph id="8BCE36C4EF0A872EC88AF9A4FB8658A5" blockId="10.[212,1172,167,1696]" lastBlockId="12.[212,1172,1193,1697]" lastPageId="12" lastPageNumber="2491" pageId="10" pageNumber="2489">
Antenna II relatively short. Several projections on its external surface in coxal region (
<figureCitation id="134A2A41EF0A8728C95DF9C4FE595A1B" box="[297,450,1607,1631]" captionStart="Figure 5" captionStartId="12.[212,279,1003,1025]" captionTargetBox="[213,1170,171,971]" captionTargetId="figure-307@12.[213,1170,171,971]" captionTargetPageId="12" captionText="Figure 5. Eurycercus meridionalis sp. nov., antenna I and II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A–C,F,G) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (D,E). (A) Antenna I; (B,C) antenna II, anterior and external view; (D) its coxal portion; (E,F) spine on basal segment of exopod; (G) apical “swimming” seta. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210563" httpUri="https://zenodo.org/record/5210563/files/figure.png" pageId="10" pageNumber="2489">Figure 5B–D</figureCitation>
). On one of them with two bisegmented setae, unequal in length, next projection with semi-circular row of setules; distalmost projection inflated, with numerous strong spinules. Massive basal segment with a relatively long seta distally on anterior surface, and rows of short setules. Both branches with elongated segments, basalmost members particularly elongated; all segments with rows of short setules. Setae 0-0-3/1-1-3; both apical and lateral setae long, clearly bisegmented, with long hairs on both basal and distal segments; in addition, distal segments with a third row of short, densely distributed setules (
<figureCitation id="134A2A41EF0B8729CA21F9EFFD575AC0" box="[597,716,1644,1668]" captionStart="Figure 5" captionStartId="12.[212,279,1003,1025]" captionTargetBox="[213,1170,171,971]" captionTargetId="figure-307@12.[213,1170,171,971]" captionTargetPageId="12" captionText="Figure 5. Eurycercus meridionalis sp. nov., antenna I and II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A–C,F,G) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (D,E). (A) Antenna I; (B,C) antenna II, anterior and external view; (D) its coxal portion; (E,F) spine on basal segment of exopod; (G) apical “swimming” seta. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210563" httpUri="https://zenodo.org/record/5210563/files/figure.png" pageId="11" pageNumber="2490">Figure 5G</figureCitation>
). Spines 1-0-1/0-0-1. No additional spines on distal parts of any segments of either branch. Length of apical spines and of segments from which they arise subequal; length of spine situated on basal segment of exopod somewhat shorter than length of second segment (
<figureCitation id="134A2A41EF0C872ECBF6FB4AFB8B58A5" box="[898,1040,1225,1249]" captionStart="Figure 5" captionStartId="12.[212,279,1003,1025]" captionTargetBox="[213,1170,171,971]" captionTargetId="figure-307@12.[213,1170,171,971]" captionTargetPageId="12" captionText="Figure 5. Eurycercus meridionalis sp. nov., antenna I and II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A–C,F,G) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (D,E). (A) Antenna I; (B,C) antenna II, anterior and external view; (D) its coxal portion; (E,F) spine on basal segment of exopod; (G) apical “swimming” seta. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210563" httpUri="https://zenodo.org/record/5210563/files/figure.png" pageId="12" pageNumber="2491">Figure 5E,F</figureCitation>
).
</paragraph>
<caption id="DF0E664CEF0B8729C8E4FA90FEC959FF" ID-DOI="http://doi.org/10.5281/zenodo.5210561" ID-Zenodo-Dep="5210561" httpUri="https://zenodo.org/record/5210561/files/figure.png" pageId="11" pageNumber="2490" startId="11.[144,211,1299,1321]" targetBox="[145,1102,172,1267]" targetPageId="11">
<paragraph id="8BCE36C4EF0B8729C8E4FA90FEC959FF" blockId="11.[144,1105,1299,1467]" pageId="11" pageNumber="2490">
Figure 4. 
<taxonomicName id="4C714D47EF0B8729C88DFA90FE7F596D" authority="Bekker &amp; Kotov &amp; Elmoor-Loureiro, 2010" authorityName="Bekker &amp; Kotov &amp; Elmoor-Loureiro" authorityYear="2010" box="[249,484,1299,1321]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="2490" phylum="Arthropoda" rank="species" species="meridionalis" status="sp. nov.">
<emphasis id="B905EAD6EF0B8729C88DFA90FE7F596D" box="[249,484,1299,1321]" italics="true" pageId="11" pageNumber="2490">Eurycercus meridionalis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23657ADEF0B8729C99FFA97FDA6596D" box="[491,573,1300,1321]" pageId="11" pageNumber="2490" rank="species">sp. nov.</taxonomicNameLabel>
, postabdomen of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (B,C,F,G,I,K) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (A,D,E,H). (A–C) Lateral view; (D) basal portion of preanal margin; (E) middle portion of preanal margin; (F–H) distal portion of postabdomen; (I,J) armature of postanal and anal margins; (K) spines on postanal portion. Scale bars: 0.1 mm.
</paragraph>
</caption>
<caption id="DF0E664CEF0C872EC8A0FC68FC835832" ID-DOI="http://doi.org/10.5281/zenodo.5210563" ID-Zenodo-Dep="5210563" httpUri="https://zenodo.org/record/5210563/files/figure.png" pageId="12" pageNumber="2491" startId="12.[212,279,1003,1025]" targetBox="[213,1170,171,971]" targetPageId="12">
<paragraph id="8BCE36C4EF0C872EC8A0FC68FC835832" blockId="12.[212,1172,1003,1142]" pageId="12" pageNumber="2491">
Figure 5. 
<taxonomicName id="4C714D47EF0C872EC949FC68FDB55845" authority="Bekker &amp; Kotov &amp; Elmoor-Loureiro, 2010" authorityName="Bekker &amp; Kotov &amp; Elmoor-Loureiro" authorityYear="2010" box="[317,558,1003,1025]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="2491" phylum="Arthropoda" rank="species" species="meridionalis" status="sp. nov.">
<emphasis id="B905EAD6EF0C872EC949FC68FDB55845" box="[317,558,1003,1025]" italics="true" pageId="12" pageNumber="2491">Eurycercus meridionalis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23657ADEF0C872ECA42FC6FFD105845" box="[566,651,1004,1025]" pageId="12" pageNumber="2491" rank="species">sp. nov.</taxonomicNameLabel>
, antenna I and II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A–C,F,G) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (D,E). (A) Antenna I; (B,C) antenna II, anterior and external view; (D) its coxal portion; (E,F) spine on basal segment of exopod; (G) apical “swimming” seta. Scale bars: 0.1 mm.
</paragraph>
</caption>
<paragraph id="8BCE36C4EF0C872EC88AFB6AFB0A5925" blockId="12.[212,1172,1193,1697]" pageId="12" pageNumber="2491">
Mandibles relatively elongated (
<figureCitation id="134A2A41EF0C872ECA1EFB6AFD445945" box="[618,735,1257,1281]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="12" pageNumber="2491">Figure 3A</figureCitation>
), articulated with integument between head shield and valves. Maxilla I with three densely setulated setae and a fourth short seta-like structure. Maxilla II absent in both adults and juveniles. It appears in embryos of 
<taxonomicName id="4C714D47EF0C872EC885FACAFE455925" box="[241,478,1353,1377]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="2491" phylum="Arthropoda" rank="species" species="lamellatus">
<emphasis id="B905EAD6EF0C872EC885FACAFE455925" box="[241,478,1353,1377]" italics="true" pageId="12" pageNumber="2491">Eurycercus lamellatus</emphasis>
</taxonomicName>
, but fully degenerates by the time of birth (
<bibRefCitation id="EFE04B35EF0C872ECBC8FACAFBD95925" author="Kotov AA" box="[956,1090,1353,1377]" pageId="12" pageNumber="2491" pagination="39 - 50" refId="ref12111" refString="Kotov AA. 1995. The development of head and thoracic appendages of Eurycercus lamellatus (Crustacea, Daphniiformes) in later embryogenesis. Zool Zh. 74: 39 - 50 (in Russian)." type="journal article" year="1995">Kotov 1995</bibRefCitation>
, 
<bibRefCitation id="EFE04B35EF0C872ECC39FACAFB1D5925" author="Kotov AA" box="[1101,1158,1353,1377]" pageId="12" pageNumber="2491" pagination="393 - 405" refId="ref12148" refString="Kotov AA. 1996. Fate of the second maxilla during embryogenesis in some Anomopoda Crustacea (Branchiopoda). Zool J Linn Soc. 116: 393 - 405." type="journal article" year="1996">1996</bibRefCitation>
).
</paragraph>
<paragraph id="8BCE36C4EF0C872CC88AFAEAFCF65D3B" blockId="12.[212,1172,1193,1697]" lastBlockId="14.[212,1173,167,1695]" lastPageId="14" lastPageNumber="2493" pageId="12" pageNumber="2491">
Limb I large (
<figureCitation id="134A2A41EF0C872EC9D8FAEAFDDF59C5" box="[428,580,1385,1409]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="12" pageNumber="2491">Figure 6A,B</figureCitation>
). Epipodite without a finger-like projection. Two accessory setae, unequal in size and setulated in distal parts, are the distalmost structures of the distal portion of limb I. ODL distally with two setae of very unequal size (
<figureCitation id="134A2A41EF0C872EC8AFFA4AFEC859A5" box="[219,339,1481,1505]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="12" pageNumber="2491">Figure 6C</figureCitation>
). IDL with three bisegmented setae, named as “clasping hooks” by 
<bibRefCitation id="EFE04B35EF0C872ECC20FA4AFE865A45" author="Fryer G" pageId="12" pageNumber="2491" pagination="335 - 381" refId="ref11922" refString="Fryer G. 1963. The functional morphology and the feeding mechanism of the chydorid cladoceran Eurycercus lamellatus (O. F. Muller). Trans R Soc Edinb. 65: 335 - 381." type="journal article" year="1963">Fryer (1963)</bibRefCitation>
, and after him, 
<bibRefCitation id="EFE04B35EF0C872EC992FA6AFDF45A45" author="Frey DG" box="[486,623,1513,1537]" pageId="12" pageNumber="2491" pagination="221 - 267" refId="ref11756" refString="Frey DG. 1973. Comparative morphology and biology of three species of Eurycercus (Chydoridae, Cladocera) with description of Eurycercus macrocanthus sp. n. Int Rev ges Hydrobiol. 58: 221 - 267." type="journal article" year="1973">Frey (1973)</bibRefCitation>
and 
<bibRefCitation id="EFE04B35EF0C872ECAC6FA6AFCDD5A45" author="Hann BJ" box="[690,838,1513,1537]" pageId="12" pageNumber="2491" pagination="2146 - 2157" refId="ref12034" refString="Hann BJ. 1990. Redescription of Eurycercus (Teretifrons) glacialis (Cladocera, Chydoridae), and description of a new species, E. (T.) nigracanthus, from Newfoundland, Canada. Can J Zool. 68: 2146 - 2157." type="journal article" year="1990">Hann (1990)</bibRefCitation>
generally decreasing in size towards endites, among them, a remarkable strong hook-like seta. Also IDL supplied with four groups of spinules (
<figureCitation id="134A2A41EF0C872ECA54F9AAFD275A05" box="[544,700,1577,1601]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="12" pageNumber="2491">Figure 6D–G</figureCitation>
), named here after 
<bibRefCitation id="EFE04B35EF0C872ECBE1F9AAFBB35A05" author="Hann BJ" box="[917,1064,1577,1601]" pageId="12" pageNumber="2491" pagination="585 - 610" refId="ref11959" refString="Hann BJ. 1982. Two new species of Eurycercus (Bullatifrons) from Eastern North America (Chydoridae, Cladocera). Taxonomy, ontogeny, and biology. Int Rev ges Hydrobiol. 67: 585 - 610." type="journal article" year="1982">Hann (1982)</bibRefCitation>
: long distal spinules (five or six in juveniles, five to nine in largest adults), long proximal spinules (four to six in juveniles, six to ten in largest adults), very short marginal spinules (four to six in juveniles, four to seven in largest adults) and short basal spinules (six to eight in juveniles, seven to nine in largest adults); a field of minute denticles on IDL basally, named as grinding tubercles by 
<bibRefCitation id="EFE04B35EF0D872FCB63F9E8FC065AC6" author="Frey DG" box="[791,925,1642,1667]" pageId="13" pageNumber="2492" pagination="263 - 300" refId="ref11795" refString="Frey DG. 1975. Subgeneric differentiation within Eurycercus (Cladocera, Chydoridae) and a new species from Northern Sweden. Hydrobiologia 46: 263 - 300." type="journal article" year="1975">Frey (1975)</bibRefCitation>
. Endite III with three setulated, bisegmented posterior setae of similar size (
<figureCitation id="134A2A41EF0D872FCB38F909FC535AE6" box="[844,968,1674,1698]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="13" pageNumber="2492">Figure 6A</figureCitation>
:a–c), and a setulated, stiff anterior seta 1 with a small, slender sensillum near its base. Endite II with three posterior setae (
<figureCitation id="134A2A41EF0E872CCA7BFF44FD125C9B" box="[527,649,199,223]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="14" pageNumber="2493">Figure 6A</figureCitation>
:d–f) analogous to those on eIII, and a stiff, setulated anterior seta 2, a very small sensillum near its base. Endite I with three posterior setae (g–i), and a stiff anterior seta 3. Two ejector hooks anteriorly on outer portion of limb corm (
<figureCitation id="134A2A41EF0E872CC9A0FEA4FDFC5D7B" box="[468,615,295,319]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="14" pageNumber="2493">Figure 6A,B</figureCitation>
). Well-developed maxillar process, earlier shown in embryos to be a remainder of gnathobase I (
<bibRefCitation id="EFE04B35EF0E872CCA8EFEC4FC1D5D1B" author="Kotov AA" box="[762,902,327,351]" pageId="14" pageNumber="2493" pagination="39 - 50" refId="ref12111" refString="Kotov AA. 1995. The development of head and thoracic appendages of Eurycercus lamellatus (Crustacea, Daphniiformes) in later embryogenesis. Zool Zh. 74: 39 - 50 (in Russian)." type="journal article" year="1995">Kotov 1995</bibRefCitation>
), bearing three slender, fully and densely setulated setae on inner side of limb base.
</paragraph>
<caption id="DF0E664CEF0D872FC8E4FA3EFC295A6F" ID-DOI="http://doi.org/10.5281/zenodo.5210565" ID-Zenodo-Dep="5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="13" pageNumber="2492" startId="13.[144,211,1469,1491]" targetBox="[145,1102,171,1438]" targetPageId="13">
<paragraph id="8BCE36C4EF0D872FC8E4FA3EFC295A6F" blockId="13.[144,1104,1469,1579]" pageId="13" pageNumber="2492">
Figure 6. 
<taxonomicName id="4C714D47EF0D872FC88CFA3DFE7C5990" authority="Bekker &amp; Kotov &amp; Elmoor-Loureiro, 2010" authorityName="Bekker &amp; Kotov &amp; Elmoor-Loureiro" authorityYear="2010" box="[248,487,1470,1492]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="2492" phylum="Arthropoda" rank="species" species="meridionalis" status="sp. nov.">
<emphasis id="B905EAD6EF0D872FC88CFA3DFE7C5990" box="[248,487,1470,1492]" italics="true" pageId="13" pageNumber="2492">Eurycercus meridionalis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23657ADEF0D872FC999FA3DFDDA5997" box="[493,577,1470,1491]" pageId="13" pageNumber="2492" rank="species">sp. nov.</taxonomicNameLabel>
, thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm.
</paragraph>
</caption>
<paragraph id="8BCE36C4EF0E872CC88AFE04FCD85F7B" blockId="14.[212,1173,167,1695]" pageId="14" pageNumber="2493">
Limb II with ovoid epipodite lacking a finger-like projection; exopodite as a small lobe (
<figureCitation id="134A2A41EF0E872CC960FE24FE0B5DFB" box="[276,400,423,447]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="14" pageNumber="2493">Figure 6H</figureCitation>
). At inner side of limb, a row of eight stiff scrapers; setae 1–3 with more delicate feathering, setae 4–8 with relatively robust denticles (
<figureCitation id="134A2A41EF0E872CCBCBFE44FBB15D9B" box="[959,1066,455,479]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="14" pageNumber="2493">Figure 6I</figureCitation>
). Scraper 5 with 15–19 denticles in juveniles and 20–25 denticles in largest adult; scraper 6 with 15–17 denticles in juveniles and 18–23 denticles in largest adult; scraper 7 with 13–19 denticles in juveniles and 19–23 denticles in largest adult. Posteriorly on limb corm 8 soft setae: distalmost one (
<figureCitation id="134A2A41EF0E872CCA67FDC4FD085E1B" box="[531,659,583,607]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="14" pageNumber="2493">Figure 6H</figureCitation>
:a) short; next two (
<figureCitation id="134A2A41EF0E872CCBF4FDC4FB9B5E1B" box="[896,1024,583,607]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="14" pageNumber="2493">Figure 6H</figureCitation>
:b,c) longest, relatively stout, bilaterally armed in distal portions by short setules; basalmost ones (
<figureCitation id="134A2A41EF0E872CC8AFFD04FECD5EDB" box="[219,342,647,671]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="14" pageNumber="2493">Figure 6H</figureCitation>
:d–h) similarly feathered by long hairs. Distal armature of gnathobase with four setae (
<figureCitation id="134A2A41EF0E872CC9FBFD24FDB85EFB" box="[399,547,679,703]" captionStart="Figure 6" captionStartId="13.[144,211,1469,1491]" captionTargetBox="[145,1102,171,1438]" captionTargetId="figure-116@13.[145,1102,171,1438]" captionTargetPageId="13" captionText="Figure 6. Eurycercus meridionalis sp. nov., thoracic limbs I,II of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A,B) Limb I, anterior view; (C) its outer portion; (D–G) IDL of different individuals; (H) limb II, posterior view; (I) scrapers 5–8; (J,K) distal armature of gnathobase. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210565" httpUri="https://zenodo.org/record/5210565/files/figure.png" pageId="14" pageNumber="2493">Figure 6J–K</figureCitation>
), one of them a minute sensillum (1), located far from the others, a row of denticles (four or five in juveniles, four to eight in largest adults) crossing near it. Filter plate with eight long, densely setulated setae; distalmost seta of filter plate clearly smaller than the others, second and third are slightly shorter than others. Additional bunch of setules basal to filter plate.
</paragraph>
<paragraph id="8BCE36C4EF0E872CC88AFCC4FD56589B" blockId="14.[212,1173,167,1695]" pageId="14" pageNumber="2493">
Limb III with relatively large epipodite lacking a finger-like projection (
<figureCitation id="134A2A41EF0E872CCC66FCC4FB1C5F1B" box="[1042,1159,839,863]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7A</figureCitation>
). Exopodite flat, smaller than those of limbs IV and V. Distally, five setae of unequal size (
<figureCitation id="134A2A41EF0E872CC979FC04FE125FDB" box="[269,393,903,927]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7A</figureCitation>
:1–5), among them seta 3 with a special three-dimensional armature (supplied with two rows of strong setules and a row of delicate setules, 
<figureCitation id="134A2A41EF0E872CCC65FC24FB1D5FFB" box="[1041,1158,935,959]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7B</figureCitation>
); distal group consists of three setae (6–8), seta 8 especially long. Distal portion of inner limb part forms a partly isolated lobe, distal endite 
<emphasis id="B905EAD6EF0E872CCB57FC64FCC55FBB" box="[803,862,999,1023]" italics="true" pageId="14" pageNumber="2493">sensu</emphasis>
<bibRefCitation id="EFE04B35EF0E872CCB12FC6BFB9E5FBB" author="Kotov AA" box="[870,1029,999,1023]" pageId="14" pageNumber="2493" pagination="17 - 56" refId="ref12213" refString="Kotov AA. 2000 a. Analysis of Kozhowia Vasiljeva &amp; Smirnov, 1969 (Chydoridae, Anomopoda, Branchiopoda), and a description of Parakozhowia n. gen. Hydrobiologia 437: 17 - 56." type="journal article" year="2000">Kotov (2000a</bibRefCitation>
, b), external endite 
<emphasis id="B905EAD6EF0E872CC955FB84FEC7585B" box="[289,348,1031,1055]" italics="true" pageId="14" pageNumber="2493">sensu</emphasis>
<bibRefCitation id="EFE04B35EF0E872CC910FB8BFD44585B" author="Dumont HJ &amp; Silva-Briano M" box="[356,735,1031,1055]" pageId="14" pageNumber="2493" pagination="119 - 149" refId="ref11520" refString="Dumont HJ, Silva-Briano M. 1998. A reclassification of the anomopod families Macrothricidae and Chydoridae, with the creation of a new suborder, the Radopoda (Crustacea: Branchiopoda). Hydrobiologia 384: 119 - 149." type="journal article" year="1998">Dumont and Silva-Briano (1998)</bibRefCitation>
with three bisegmented anterior setae (1–3). Basal endite, internal endite 
<emphasis id="B905EAD6EF0E872CCA16FBA4FD06587B" box="[610,669,1063,1087]" italics="true" pageId="14" pageNumber="2493">sensu</emphasis>
<bibRefCitation id="EFE04B35EF0E872CCAD1FBABFB85587B" author="Dumont HJ &amp; Silva-Briano M" box="[677,1054,1063,1087]" pageId="14" pageNumber="2493" pagination="119 - 149" refId="ref11520" refString="Dumont HJ, Silva-Briano M. 1998. A reclassification of the anomopod families Macrothricidae and Chydoridae, with the creation of a new suborder, the Radopoda (Crustacea: Branchiopoda). Hydrobiologia 384: 119 - 149." type="journal article" year="1998">Dumont and Silva-Briano (1998)</bibRefCitation>
somewhat larger than distal endite. Marginally, a row of four stiff setae (
<figureCitation id="134A2A41EF0E872CCBFDFBC4FC60581B" box="[905,1019,1095,1119]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7C</figureCitation>
:4–7), a small sensillum near seta 4. Seven long soft setae of subequal size (
<figureCitation id="134A2A41EF0E872CCBFEFBE4FC65583B" box="[906,1022,1127,1151]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7C</figureCitation>
:a–h) on limb corm posteriorly. Gnathobase weakly demarcated from basal endite, distal armature with four members, one of them (
<figureCitation id="134A2A41EF0E872CCA3DFB24FD5B58FB" box="[585,704,1191,1215]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7C</figureCitation>
:1) a large, bottle-shaped sensillum located far from the others. Nine setae in filter plate.
</paragraph>
<paragraph id="8BCE36C4EF0E872CC88AFB64FBDE5A7B" blockId="14.[212,1173,167,1695]" pageId="14" pageNumber="2493">
Limb IV with pre-epipodite as a setulated hillock; epipodite large, ovoid, without a finger-like projection (
<figureCitation id="134A2A41EF0E872CC9A6FA84FDD6595B" box="[466,589,1287,1311]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7D</figureCitation>
). Exopodite oval, with two distal, relatively stout, bisegmented setae of unequal size, armed by short setules (
<figureCitation id="134A2A41EF0E872CCB38FAA4FC5B597B" box="[844,960,1319,1343]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7D</figureCitation>
:1,2), other six setae feathered bilaterally by very long hairs (
<figureCitation id="134A2A41EF0E872CCAF6FAC4FD6D591B" box="[642,758,1351,1375]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7D</figureCitation>
:3–8). Marginally on inner limb face, a row of four stiff anterior setae (
<figureCitation id="134A2A41EF0E872CCA42FAE4FD31593B" box="[566,682,1383,1407]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7E</figureCitation>
:1–4). Seta 1 shorter, setae 2–4 of equal size, feathered by long setules in distal part, small receptors near bases of setae 2 and 3. Posteriorly, five soft setae (
<figureCitation id="134A2A41EF0E872CC9B0FA24FDA359FB" box="[452,568,1447,1471]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7D</figureCitation>
:a–e) with subequal length. Distal armature of gnathobase with four members (
<figureCitation id="134A2A41EF0E872CC99DFA44FDC0599B" box="[489,603,1479,1503]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7E</figureCitation>
:1–4). One of them a long, bisegmented seta, densely feathered in distal part (
<figureCitation id="134A2A41EF0E872CC994FA64FDCF59BB" box="[480,596,1511,1535]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7E</figureCitation>
:2), two others small (
<figureCitation id="134A2A41EF0E872CCB37FA64FC2E59BB" box="[835,949,1511,1535]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7E</figureCitation>
:3,4), a large, bottleshaped sensillum (
<figureCitation id="134A2A41EF0E872CC9E9F984FD895A5B" box="[413,530,1543,1567]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7E</figureCitation>
:1) is a fourth member of gnathobasic armature (similar to limb III). Filter plate IV with eight setae, middle ones longer than marginal ones.
</paragraph>
<paragraph id="8BCE36C4EF0E872DC88AF9C4FD7359D4" blockId="14.[212,1173,167,1695]" lastBlockId="15.[144,1104,1304,1518]" lastPageId="15" lastPageNumber="2494" pageId="14" pageNumber="2493">
Limb V with pre-epipodite as a setulated hillock; epipodite without a finger-like projection. Exopodite very large, with four short distal (
<figureCitation id="134A2A41EF0E872CCB18F9E4FC7F5A3B" box="[876,996,1639,1663]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7F</figureCitation>
:1–4) and three large lateral (
<figureCitation id="134A2A41EF0E872CC91FF904FE455ADB" box="[363,478,1671,1695]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="14" pageNumber="2493">Figure 7F</figureCitation>
:5–7) setae. Inner portion of limb with a protruding flap-like distal projection, fringed by long setules. Three marginal setae on inner face of limb, distal member slightly protruding behind distal endopodite projection, a sensillum near the basalmost seta. Gnathobase with one characteristic, bent hook, and a small denticle. Filter plate with eight setae (
<figureCitation id="134A2A41EF0F872DCA42FAFBFD3159D4" box="[566,682,1400,1424]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="15" pageNumber="2494">Figure 7F</figureCitation>
:a–g).
</paragraph>
<caption id="DF0E664CEF0F872DC8E4FBF3FC72589A" ID-DOI="http://doi.org/10.5281/zenodo.5210567" ID-Zenodo-Dep="5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="15" pageNumber="2494" startId="15.[144,211,1136,1158]" targetBox="[145,1102,171,1104]" targetPageId="15">
<paragraph id="8BCE36C4EF0F872DC8E4FBF3FC72589A" blockId="15.[144,1104,1136,1246]" pageId="15" pageNumber="2494">
Figure 7. 
<taxonomicName id="4C714D47EF0F872DC888FBF3FE7458C2" authority="Bekker &amp; Kotov &amp; Elmoor-Loureiro, 2010" authorityName="Bekker &amp; Kotov &amp; Elmoor-Loureiro" authorityYear="2010" box="[252,495,1136,1158]" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="15" pageNumber="2494" phylum="Arthropoda" rank="species" species="meridionalis" status="sp. nov.">
<emphasis id="B905EAD6EF0F872DC888FBF3FE7458C2" box="[252,495,1136,1158]" italics="true" pageId="15" pageNumber="2494">Eurycercus meridionalis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A23657ADEF0F872DC98EFBF2FDCA58C2" box="[506,593,1137,1158]" pageId="15" pageNumber="2494" rank="species">sp. nov.</taxonomicNameLabel>
, thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm.
</paragraph>
</caption>
<paragraph id="8BCE36C4EF0F872DC8CEFA1BFC145994" blockId="15.[144,1104,1304,1518]" pageId="15" pageNumber="2494">
Limb VI triangular, with epipodite lacking a finger-like projection and a bunch of setules somewhat distal to it; its inner margin setulated (
<figureCitation id="134A2A41EF0F872DCB7CFA3BFC195994" box="[776,898,1464,1488]" captionStart="Figure 7" captionStartId="15.[144,211,1136,1158]" captionTargetBox="[145,1102,171,1104]" captionTargetId="figure-165@15.[145,1102,171,1105]" captionTargetPageId="15" captionText="Figure 7. Eurycercus meridionalis sp. nov., thoracic limbs III–VI of adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil. (A) Limb III, posterior view; (B) armature of exopod seta 3; (C) basal portion of inner margin; (D) limb IV, posterior view; (E) its inner margin; (F) limb V; (G) limb VI. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210567" httpUri="https://zenodo.org/record/5210567/files/figure.png" pageId="15" pageNumber="2494">Figure 7G</figureCitation>
).
</paragraph>
<paragraph id="8BCE36C4EF0F872DC8C9FA55FDE959AA" blockId="15.[144,1104,1304,1518]" box="[189,626,1494,1518]" pageId="15" pageNumber="2494">
Intestine has a single loop (
<figureCitation id="134A2A41EF0F872DC984FA55FDFF59AA" box="[496,612,1494,1518]" captionStart="Figure 3" captionStartId="9.[142,209,1296,1318]" captionTargetBox="[145,1102,173,1272]" captionTargetId="figure-172@9.[145,1102,173,1272]" captionTargetPageId="9" captionText="Figure 3. Eurycercus meridionalis sp. nov., adult parthenogenetic female from Canal de Sarita, Estação Ecológica do Taim, Rio Grande do Sul, Brazil (A,C–G,J–P) and a pool at Parque Municipal do Iguaçu, Curitiba, Parana, Brazil (B,H,I). (A,B) Lateral view; (C) head, lateral view; (D) head shield; (E,F) dorsal head pores; (G) labrum, ventral view; (H–J) anterior portion of valve; (K,L) posteroventral portion of valve; (M,N) armature of ventral portion of posterior margin; (O,P) armature of dorsal portion of posterior margin. Scale bars: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.5210559" httpUri="https://zenodo.org/record/5210559/files/figure.png" pageId="15" pageNumber="2494">Figure 3B</figureCitation>
).
</paragraph>
<paragraph id="8BCE36C4EF0F872DC8E4F995FD8E5A6A" blockId="15.[144,533,1558,1582]" box="[144,533,1558,1582]" pageId="15" pageNumber="2494">
<emphasis id="B905EAD6EF0F872DC8E4F995FE0F5A6A" box="[144,404,1558,1582]" italics="true" pageId="15" pageNumber="2494">Ephippial female, male.</emphasis>
Unknown.
</paragraph>
<paragraph id="8BCE36C4EF0F872DC8E4F9DDFF455A32" blockId="15.[144,222,1630,1654]" box="[144,222,1630,1654]" pageId="15" pageNumber="2494">
<emphasis id="B905EAD6EF0F872DC8E4F9DDFF455A32" box="[144,222,1630,1654]" italics="true" pageId="15" pageNumber="2494">Length</emphasis>
</paragraph>
<paragraph id="8BCE36C4EF0F872DC8E4F905FEAD5ADA" blockId="15.[144,310,1670,1694]" box="[144,310,1670,1694]" pageId="15" pageNumber="2494">
<quantity id="4C899B21EF0F872DC8E4F905FEA95ADA" box="[144,306,1670,1694]" metricMagnitude="-3" metricUnit="m" metricValue="1.295" metricValueMax="2.02" metricValueMin="0.57" pageId="15" pageNumber="2494" unit="mm" value="1.295" valueMax="2.02" valueMin="0.57">0.57–2.02 mm</quantity>
.
</paragraph>
<paragraph id="8BCE36C4EF108732C8A0FF24FE5A5CFB" blockId="16.[212,449,167,191]" box="[212,449,167,191]" pageId="16" pageNumber="2495">
<emphasis id="B905EAD6EF108732C8A0FF24FE5A5CFB" box="[212,449,167,191]" italics="true" pageId="16" pageNumber="2495">Differential diagnosis</emphasis>
</paragraph>
<paragraph id="8BCE36C4EF108732C8A0FF4CFEEB5D43" blockId="16.[212,1172,207,263]" pageId="16" pageNumber="2495">
See 
<tableCitation id="C6F3037FEF108732C971FF4CFEC65CA3" box="[261,349,207,231]" captionStart="Table 1" captionStartId="24.[212,270,172,194]" captionText="Table 1. Differentiation of large adult females of known Eurycercus (Bullatifrons) species in South and North America." pageId="16" pageNumber="2495">Table 1</tableCitation>
and Discussion for differentiation of American species of 
<taxonomicName id="4C714D47EF108732CC6CFF4CFEF05D43" authority="" authorityName="Frey" authorityYear="1975" class="Branchiopoda" family="Eurycercidae" genus="Eurycercus" kingdom="Animalia" order="Diplostraca" pageId="16" pageNumber="2495" phylum="Arthropoda" rank="subGenus" subGenus="Bullatifrons">
<emphasis id="B905EAD6EF108732CC6CFF4CFB0F5CA3" box="[1048,1172,207,231]" italics="true" pageId="16" pageNumber="2495">Eurycercus</emphasis>
(
<emphasis id="B905EAD6EF108732C8A8FF6CFEC45D43" box="[220,351,239,263]" italics="true" pageId="16" pageNumber="2495">Bullatifrons</emphasis>
)
</taxonomicName>
.
</paragraph>
<paragraph id="8BCE36C4EF108732C8A0FEB4FEC15D0B" blockId="16.[212,346,311,335]" box="[212,346,311,335]" pageId="16" pageNumber="2495">
<emphasis id="B905EAD6EF108732C8A0FEB4FEC15D0B" box="[212,346,311,335]" italics="true" pageId="16" pageNumber="2495">Distribution</emphasis>
</paragraph>
<paragraph id="8BCE36C4EF108732C8A0FEDCFC175DD3" blockId="16.[212,1172,351,407]" pageId="16" pageNumber="2495">
<materialsCitation id="3B193C99EF108732C8A0FEDCFBBD5D33" box="[212,1062,351,375]" location="Upper Rio" municipality="South Atlantic" pageId="16" pageNumber="2495" specimenCount="1" stateProvince="Parana">
The species is distributed in the 
<collectingMunicipality id="6BAAACBEEF108732CA37FEDCFD705D33" box="[579,747,351,375]" pageId="16" pageNumber="2495">South Atlantic</collectingMunicipality>
and the 
<location id="8EAE601FEF108732CB25FEE3FC575D33" LSID="urn:lsid:plazi:treatment:03D887D2EF058732C904FA27FC175DD3:8EAE601FEF108732CB25FEE3FC575D33" box="[849,972,351,375]" municipality="South Atlantic" name="Upper Rio" pageId="16" pageNumber="2495" stateProvince="Parana">Upper Río</location>
<collectingRegion id="49B5F826EF108732CBA1FEDCFBBD5D33" box="[981,1062,351,375]" country="Brazil" name="Parana" pageId="16" pageNumber="2495">Paraná</collectingRegion>
</materialsCitation>
<materialsCitation id="3B193C99EF108732CC5AFEDCFC135DD3" country="Brazil" location="Parana" pageId="16" pageNumber="2495" specimenCount="1" stateProvince="Parana">
basins of 
<collectingCountry id="F3667654EF108732C8A0FEFCFE835DD3" box="[212,280,383,407]" name="Brazil" pageId="16" pageNumber="2495">Brazil</collectingCountry>
(Estado do 
<collectingRegion id="49B5F826EF108732C9D5FEFCFE695DD3" box="[417,498,383,407]" country="Brazil" name="Parana" pageId="16" pageNumber="2495">Paraná</collectingRegion>
and Estado do 
<collectingRegion id="49B5F826EF108732CAD1FEFCFC1B5DD3" box="[677,896,383,407]" country="Brazil" name="Rio Grande do Sul" pageId="16" pageNumber="2495">Rio Grande do Sul</collectingRegion>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
</treatment>
</document>