911 lines
120 KiB
XML
911 lines
120 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1191.113840" ID-Pensoft-Pub="1313-2970-1191-105" ID-Pensoft-UUID="DE24AF5880935A679C9F5ECC1B1922C2" ID-ZooBank="389318B6701B43B09B2408185E930018" ModsDocID="1313-2970-1191-105" checkinTime="1707829837957" checkinUser="pensoft" docAuthor="Mussini, Giovanni, Stepan, Nicole D. & Vargas, Gersey" docDate="2024" docId="6F402ABB05D3519FB17F8AABB2DEB423" docLanguage="en" docName="ZooKeys 1191: 105-127" docOrigin="ZooKeys 1191" docPubDate="2024-02-12" docSource="http://dx.doi.org/10.3897/zookeys.1191.113840" docTitle="Hyalella julia Mussini & Stepan & Vargas 2024, sp. nov." docType="treatment" docUuid="4F2CE36F-B2A1-47AB-A812-ED4CC0D6D4A7" docUuidSource="ZooBank" docVersion="1" id="DE24AF5880935A679C9F5ECC1B1922C2" lastPageNumber="105" masterDocId="DE24AF5880935A679C9F5ECC1B1922C2" masterDocTitle="Two new species of Hyalella (Amphipoda, Dogielinotidae) from the Humid Chaco ecoregion of Paraguay" masterLastPageNumber="127" masterPageNumber="105" pageNumber="105" updateTime="1707829837957" updateUser="pensoft">
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<mods:mods id="7EBD72CAFED6A88116D46A6838706525" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="7CC1D9195997FB319949CEEE28B2FE83">
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<mods:title id="3CDE6F5084EF11468599EDA8CC83BC1F">Two new species of Hyalella (Amphipoda, Dogielinotidae) from the Humid Chaco ecoregion of Paraguay</mods:title>
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</mods:titleInfo>
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<mods:name id="BD7FF3750FED1ACD36CCCF3620856C23" type="personal">
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<mods:roleTerm id="413FCD22370C5FC98A196B6524527F78">Author</mods:roleTerm>
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<mods:namePart id="E7A9E7C9AA981ABBBBDC9DA4F95E62AB">Mussini, Giovanni</mods:namePart>
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<mods:nameIdentifier id="3542D5AB079C6BDCCD902EB6C76E9389" type="ORCID">https://orcid.org/0009-0002-1093-5865</mods:nameIdentifier>
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<mods:affiliation id="C98EC392E267C699C3B1DDB699636634">Department of Earth Sciences, Downing Street, University of Cambridge, CB 2 3 EQ, Cambridge, UK</mods:affiliation>
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<mods:nameIdentifier id="735A19273C98C2B7C9EF0D353C23F931" type="email">gm726@cam.ac.uk</mods:nameIdentifier>
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<mods:name id="44CA1333C9453628DB3D4F4F828A5B8D" type="personal">
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<mods:roleTerm id="5BF482EA76412EE7CD0545E699400C66">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="74591687595FC8F085455E7451DD4756">Stepan, Nicole D.</mods:namePart>
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<mods:affiliation id="0189623A5CCC7B910E875E8319E7F456">Coleccion Cientifica Para La Tierra (CCPLT), Fundacion Para La Tierra, Centro IDEAL, 321, Mariscal Jose Felix Estigarribia, c / Teniente Capurro, Pilar, Neembucu, Paraguay</mods:affiliation>
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<mods:roleTerm id="C37F7E65ECFF8E21407A5413B41A114C">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="A784CDAF026BE319D00EAE00DDB04FA7">Vargas, Gersey</mods:namePart>
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<mods:nameIdentifier id="A135FA4393F3E3A30E155D472652DD72" type="ORCID">https://orcid.org/0000-0002-5625-8284</mods:nameIdentifier>
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<mods:affiliation id="1356CFAAEEE1BDBE3844A787A2A3278C">Coleccion Cientifica Para La Tierra (CCPLT), Fundacion Para La Tierra, Centro IDEAL, 321, Mariscal Jose Felix Estigarribia, c / Teniente Capurro, Pilar, Neembucu, Paraguay</mods:affiliation>
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<mods:title id="6F9BFD8573D487A81753EC2BE56FBA65">ZooKeys</mods:title>
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<mods:part id="16FD287A516A4F82CA0FC9C011672C98">
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<mods:date id="ECAD50F0754C72F8E8E93A12DF27D4BC">2024</mods:date>
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<mods:detail id="3D102EA013F97F3C6C3B18843148FA50" type="pubDate">
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<mods:number id="715C6EB37EA452D4F74CA04C0D1E574C">2024-02-12</mods:number>
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<mods:number id="A659991F9B8B33AB344C9A42B38E632E">1191</mods:number>
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<mods:start id="41FA623A07B32A515996E06930CB74E5">105</mods:start>
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<mods:url id="BC2BF2352312B46EF2A3C7ADCDF7C5AD">http://dx.doi.org/10.3897/zookeys.1191.113840</mods:url>
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<mods:classification id="CB57CE26AAE7D3EF65606F92BE901ED6">journal article</mods:classification>
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<mods:identifier id="0027B2D8E42690D306917DED594EAC4A" type="DOI">http://dx.doi.org/10.3897/zookeys.1191.113840</mods:identifier>
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<subSection id="A91970E9E7C3CCB25222F0F64EBFE023" pageId="0" pageNumber="105" type="taxonomy">
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<treatment id="6F402ABB05D3519FB17F8AABB2DEB423" LSID="urn:lsid:zoobank.org:act:4F2CE36F-B2A1-47AB-A812-ED4CC0D6D4A7" httpUri="http://treatment.plazi.org/id/6F402ABB05D3519FB17F8AABB2DEB423" lastPageNumber="105" pageId="0" pageNumber="105">
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<subSubSection id="FD93D0AF210BEA8FB3A1EEA6E1CC2670" pageId="0" pageNumber="105" type="nomenclature">
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<paragraph id="509B344167EF259AAAF8D6D5A1C8BE10" pageId="0" pageNumber="105">
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<taxonomicName id="D1DBB012C7E0914C235B8FCA83E2D150" LSID="https://zoobank.org/4F2CE36F-B2A1-47AB-A812-ED4CC0D6D4A7" authority="Mussini & Stepan & Vargas, 2024" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella julia" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="julia" status="sp. nov.">Hyalella julia</taxonomicName>
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<taxonomicNameLabel id="639330EA612B5D5033E4C2C9712C8742" pageId="0" pageNumber="105">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="E73D0DFBDB551737FD1E01A4989F3A63" pageId="0" pageNumber="105" type="type material">
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<paragraph id="1B94C68B2FB8D38A7B5C9FD99E885CFA" pageId="0" pageNumber="105">Type material.</paragraph>
|
||
<paragraph id="8061540F17058114F0D9D2E7E6A1E3B6" pageId="0" pageNumber="105">
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<emphasis id="7174C77FA94302E53C0D3A1FD2F68C60" bold="true" italics="true" pageId="0" pageNumber="105">Holotype</emphasis>
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, male (Fig.
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<figureCitation id="256EB79D9503B016C17E2956D7067522" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Hyalella julia sp. nov., Department of Neembucu, Paraguay A holotype, male B allotype, female. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1191.113840.figure7" httpUri="https://binary.pensoft.net/fig/983121" pageId="0" pageNumber="105">7A</figureCitation>
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), total body length = 8.81 mm, head length = 0.78 mm (CIPLT-O-40); Allotype female (Fig.
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<figureCitation id="7E62658519C70641E3FBA3F37C74EC4C" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Hyalella julia sp. nov., Department of Neembucu, Paraguay A holotype, male B allotype, female. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1191.113840.figure7" httpUri="https://binary.pensoft.net/fig/983121" pageId="0" pageNumber="105">7B</figureCitation>
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), total body length = 5.44 mm, head length = 0.42 mm (CIPLT-O-40). Paraguay, Department of
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<normalizedToken id="910E2D8FD93CDCA6F7D9B27C43DA8446" originalValue="Ñeembucú">Neembucu</normalizedToken>
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||
, Pilar, Yegros Paso field locality (
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<geoCoordinate id="333AE9F2789F534DC736E8E3CAA52204" degrees="26" direction="south" minutes="51" orientation="latitude" precision="15" seconds="51" value="-26.864166">26°51'51"S</geoCoordinate>
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,
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<geoCoordinate id="C44AA8888D4230E420879BDC66F56C5C" degrees="58" direction="west" minutes="16" orientation="longitude" precision="15" seconds="11" value="-58.269722">58°16'11"W</geoCoordinate>
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), September, 06, 2021.
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<emphasis id="37A882ABFDA848B44E07A8A65FA087A1" bold="true" pageId="0" pageNumber="105">
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<emphasis id="D7B67C28B0226A579CA64BFAB74710B2" italics="true" pageId="0" pageNumber="105">Paratypes</emphasis>
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.
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</emphasis>
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9 males, 20 females (CIPLT-O-40), Yegros Paso field locality (
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<geoCoordinate id="FA4356AB890BD191F6590826547AACD8" degrees="26" direction="south" minutes="51" orientation="latitude" precision="15" seconds="51" value="-26.864166">26°51'51"S</geoCoordinate>
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,
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<geoCoordinate id="805927BE805CCFC1824C19D0E2218C66" degrees="58" direction="west" minutes="16" orientation="longitude" precision="15" seconds="11" value="-58.269722">58°16'11"W</geoCoordinate>
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).
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</paragraph>
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<caption id="A33F789D6A061F2B82E5FD864DF27ADB" doi="10.3897/zookeys.1191.113840.figure7" httpUri="https://binary.pensoft.net/fig/983121" pageId="0" pageNumber="105" start="Figure 7" startId="F7">
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<paragraph id="6E23C9EC6CBF99D88D06D4A6FF02B411" pageId="0" pageNumber="105">
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||
<emphasis id="2DF86277C741B427C32286A5C51E048B" bold="true" pageId="0" pageNumber="105">Figure 7.</emphasis>
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<taxonomicName id="A23DB0046B5A593A73267725059734D8" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella julia" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="julia">
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<emphasis id="133A4BFCD0A70E72DF2140A0974CA289" italics="true" pageId="0" pageNumber="105">Hyalella julia</emphasis>
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</taxonomicName>
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sp. nov., Department of
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<normalizedToken id="23BBDDDCF5111A8A12DE50B505880286" originalValue="Ñeembucú">Neembucu</normalizedToken>
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||
, Paraguay
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||
<emphasis id="FDB5127E947A15A7350F54E7FFAFEA4A" bold="true" pageId="0" pageNumber="105">A</emphasis>
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||
holotype, male
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||
<emphasis id="FD5B81BA266764D5C8EC201A4C9C4185" bold="true" pageId="0" pageNumber="105">B</emphasis>
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allotype, female. Scale bars: 1 mm.
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</paragraph>
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</caption>
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||
</subSubSection>
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||
<subSubSection id="1197B9584010A91DF3DA45E27B74D49B" pageId="0" pageNumber="105" type="type locality">
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||
<paragraph id="CD16141BF7356AF174D6FD9D5DE2108B" pageId="0" pageNumber="105">Type locality.</paragraph>
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<paragraph id="008B3B3B78963C798C94F8E25C6815C3" pageId="0" pageNumber="105">
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Paraguay, Department of
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<normalizedToken id="786F5B90D3CB9233DDA453FC52D793E0" originalValue="Ñeembucú">Neembucu</normalizedToken>
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, Pilar, Yegros Paso field locality (
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<geoCoordinate id="210A924E1BB4D28371255CF9CA3ED842" degrees="26" direction="south" minutes="51" orientation="latitude" precision="15" seconds="51" value="-26.864166">26°51'51"S</geoCoordinate>
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,
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<geoCoordinate id="C542AE5FB92AC09B23EE439B3CB1A253" degrees="58" direction="west" minutes="16" orientation="longitude" precision="15" seconds="11" value="-58.269722">58°16'11"W</geoCoordinate>
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).
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</paragraph>
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</subSubSection>
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<subSubSection id="4ADA468CEF12B73461681DD6EED37234" pageId="0" pageNumber="105" type="diagnosis">
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<paragraph id="0BC4B25EC02450285AE4546175923BC5" pageId="0" pageNumber="105">Diagnosis.</paragraph>
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<paragraph id="9F68B5CCAD6BB83C3EF79F92A837BEE5" pageId="0" pageNumber="105">Flagella of antennae 1 and 2 with 10-11 and 13-14 articles, respectively. Left mandible incisor toothed, 4-denticulate; left lacinia mobilis 3-denticulate, with short median denticle and two prominent elongated denticles with serrated margin laterally. Gnathopod 2 propodus with palm lacking pronounced cup for dactylus, without papposerrate setae, with cuspidate setae with accessory setae on disto-posterior corner. Pereopod 5 slightly longer than other pereopods. Uropod 1 endopod with a curved seta. Uropod 3 ramus dorsal margin without setae. Uropod 3 peduncle with six simple setae apically. Uropod 3 peduncle longer than wide (rectangular).</paragraph>
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</subSubSection>
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<subSubSection id="08D9BFACC99A6051C87BB09117110924" pageId="0" pageNumber="105" type="description">
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<paragraph id="0436030FF20A81038D3167BF9627B19D" pageId="0" pageNumber="105">Description.</paragraph>
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<paragraph id="08967E75216CA8BF54AF0D8F2EC139FF" pageId="0" pageNumber="105">
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<emphasis id="6C89C2436BB7F57EA40E42E56D9CA177" bold="true" pageId="0" pageNumber="105">Male</emphasis>
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(Figs
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<figureCitation id="1C1D86413F34FE8F9B809C6654B2CA9C" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Hyalella julia sp. nov., Department of Neembucu, Paraguay A holotype, male B allotype, female. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1191.113840.figure7" httpUri="https://binary.pensoft.net/fig/983121" pageId="0" pageNumber="105">7</figureCitation>
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-
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<figureCitation id="6DBD7F4F6EBDD6110530118063D7AC9A" captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Hyalella julia sp. nov. Paratype, male A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-C); 0.2 mm (D-F)." figureDoi="10.3897/zookeys.1191.113840.figure11" httpUri="https://binary.pensoft.net/fig/983125" pageId="0" pageNumber="105">11</figureCitation>
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). Mean total body length: 7.24 mm; mean head length: 0.76 mm (
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<emphasis id="495C2F9D396915143F0C051B9F8B4728" italics="true" pageId="0" pageNumber="105">N</emphasis>
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= 10). Body surface smooth. Epimeral plates not acuminate. Head smaller than first two thoracic segments, typically gammaridean, rostrum absent. Eyes pigmented, ovoid, located between insertion of antennae 1 and 2 (Fig.
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<figureCitation id="03B79D03FC5798797B62B33239C1F81E" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8A</figureCitation>
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).
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</paragraph>
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<caption id="95F511DCB55884A06103590122D0FF30" doi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105" start="Figure 8" startId="F8">
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<paragraph id="05ADF2587B4E7014AE633BC8848B209D" pageId="0" pageNumber="105">
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<emphasis id="E1A208100A9EA4818BC20B43FF94435B" bold="true" pageId="0" pageNumber="105">Figure 8.</emphasis>
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<taxonomicName id="F6EB1016D6036C9A532BE2620C38C473" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella julia" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="julia">
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<emphasis id="AE501F9D111EFA728E502BB070712664" italics="true" pageId="0" pageNumber="105">Hyalella julia</emphasis>
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</taxonomicName>
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sp. nov., Department of
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<normalizedToken id="6B28A84A77D6170948F63EF4C11E7CF8" originalValue="Ñeembucú">Neembucu</normalizedToken>
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||
, Paraguay. Paratype, male
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<emphasis id="3046D6A8EEA1A42E0B2DABF501072FC8" bold="true" pageId="0" pageNumber="105">A</emphasis>
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habitus
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<emphasis id="8C73796384530479C385E05F5C4E9828" bold="true" pageId="0" pageNumber="105">B</emphasis>
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antenna 1
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<emphasis id="10C8ABD1EDFB6570E3A537D7369936D4" bold="true" pageId="0" pageNumber="105">C</emphasis>
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antenna 2
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<emphasis id="7D046F5841EA6D085A66B835B8E399E8" bold="true" pageId="0" pageNumber="105">D</emphasis>
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upper lip
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<emphasis id="3E230C9CE70F45531967966A7C637BC5" bold="true" pageId="0" pageNumber="105">E</emphasis>
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left mandible with detail of lacinia and incisor rotated anticlockwise (
|
||
<emphasis id="42622207DB2E5B505728B628128921CD" bold="true" pageId="0" pageNumber="105">E1</emphasis>
|
||
) and clockwise (
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||
<emphasis id="52352E1FE553EA19AA9552DED8E3E516" bold="true" pageId="0" pageNumber="105">E2</emphasis>
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||
)
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||
<emphasis id="C5A924032CE9394A8D9AABFE846B1077" bold="true" pageId="0" pageNumber="105">F</emphasis>
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right mandible, with detail of lacinia and incisor rotated anticlockwise (
|
||
<emphasis id="1C0549ACA5FEA8D626A413C80BD966D9" bold="true" pageId="0" pageNumber="105">F1</emphasis>
|
||
) and clockwise (
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<emphasis id="319438C4838EFFAF9334AD1C1CFD73C4" bold="true" pageId="0" pageNumber="105">F2</emphasis>
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)
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<emphasis id="8DF75C3A68D6F5E94FE379FE154F3F74" bold="true" pageId="0" pageNumber="105">G</emphasis>
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lower lip
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<emphasis id="8B64ADDA63159E4AC47519D58A1F1F0B" bold="true" pageId="0" pageNumber="105">H</emphasis>
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maxilla 1
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<emphasis id="E5A8C89DCD4026686CE9BB93C9242095" bold="true" pageId="0" pageNumber="105">I</emphasis>
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maxilla 2
|
||
<emphasis id="95EB9D6E1F825FC1929A55495E4C0206" bold="true" pageId="0" pageNumber="105">J</emphasis>
|
||
maxilliped. Scale bars: 1 mm (
|
||
<emphasis id="BE6A39945493A7820ADF27DD9816B959" bold="true" pageId="0" pageNumber="105">A</emphasis>
|
||
); 0.5 mm (
|
||
<emphasis id="CFBE1716FF410DD0FAC2F2D837C95377" bold="true" pageId="0" pageNumber="105">B, C</emphasis>
|
||
); 0.2 mm (
|
||
<emphasis id="FF6560A762B310D831B90193F75856A4" bold="true" pageId="0" pageNumber="105">D-J</emphasis>
|
||
); 0.1 mm (
|
||
<emphasis id="9D8A6C05E041DAF84776682A52D6E475" bold="true" pageId="0" pageNumber="105">E1, E2, F1, F2</emphasis>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="D6626EDDD5EDB6BF4B475C010FA58EB0" pageId="0" pageNumber="105">
|
||
Antenna 1 about 3.2
|
||
<normalizedToken id="6C69BBAA7776CF10DAA1E29380F1A56F" originalValue="×">x</normalizedToken>
|
||
shorter than body length, 1.3
|
||
<normalizedToken id="FE7D4BF89268414BFFD20C5736197CF6" originalValue="×">x</normalizedToken>
|
||
shorter than antenna 2, 2.2
|
||
<normalizedToken id="BB4D90937385081861B7380D2270382F" originalValue="×">x</normalizedToken>
|
||
longer than peduncle of antenna 2; peduncle not surpassing head length; flagellum with 10-11 articles, 2.1
|
||
<normalizedToken id="18B8C913D92EDEEF9083A3AD798AE95A" originalValue="×">x</normalizedToken>
|
||
longer than peduncle; aesthetascs occurring distally after article 4 (Fig.
|
||
<figureCitation id="F1881B8798D056A07D8C90CB4FE8317B" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8B</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="303064468F15A1853E37E84D9CD72CD1" pageId="0" pageNumber="105">
|
||
Antenna 2 about half of body length; peduncle 1.1
|
||
<normalizedToken id="1FB5152B27A18630FB28B8FFBF68B019" originalValue="×">x</normalizedToken>
|
||
longer than head; articles 1 to 3 with several simple setae on distal margin, article 3 with several simple setae on lateral margin; flagellum 2.4
|
||
<normalizedToken id="D0B8D2ABF883E2EAD486BE03689C9AE2" originalValue="×">x</normalizedToken>
|
||
longer than peduncle, with 13-14 articles, with basal article elongated; articles with several simple setae on distal margins; four simple setae apically (Fig.
|
||
<figureCitation id="011E1CD28D40F0B11578905C36E7061F" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8C</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="5FB6935782EF0E9C7DEDDFCD270BD26B" pageId="0" pageNumber="105">
|
||
Basic amphipodan mandibles (sensu
|
||
<bibRefCitation id="D99A8333334CD1A0E1FEE0540067C887" DOI="https://doi.org/10.1080/00222939300770511" author="Watling, L" journalOrPublisher="Journal of Natural History" pageId="0" pageNumber="105" pagination="837 - 849" refId="B35" refString="Watling, L, 1993. Functional morphology of the amphipod mandible. Journal of Natural History 27 (4): 837 - 849, DOI: https://doi.org/10.1080/00222939300770511" title="Functional morphology of the amphipod mandible." url="https://doi.org/10.1080/00222939300770511" volume="27" year="1993">Watling 1993</bibRefCitation>
|
||
), without palp; left incisor toothed, 4-denticulate; left lacinia mobilis 3-denticulate, with short median denticle, with two prominent elongated denticles with serrated upper margin laterally. Setal row with four papposerrate setae, molar process large and cylindrical, triturative, with one accessory seta (Fig.
|
||
<figureCitation id="E4A0F51B2DD5E0C3104A787DFE3D021A" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8E</figureCitation>
|
||
). Right mandible incisor 7-denticulate; lacinia 4-denticulate, setal row with six papposerrate setae (Fig.
|
||
<figureCitation id="E51BB97F7C420BE84542965A2DF2C18A" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8F</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="82BD2B3782A1A420CA549078A1708A12" pageId="0" pageNumber="105">
|
||
Upper lip distal margin rounded, covered by several setules on dorsal and ventral faces (Fig.
|
||
<figureCitation id="B095D1ED5EF36C05154830323A4AF68A" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8D</figureCitation>
|
||
). Lower lip outer lobes rounded and distally notched, covered distally by several setules on dorsal and ventral faces (Fig.
|
||
<figureCitation id="1AEE4CC4ADE30B4844BD7D937A5782B1" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8G</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8401A730FA666BD7D0CC723AEAB96A00" pageId="0" pageNumber="105">
|
||
Maxilla 1 inner plate slender, 1.4
|
||
<normalizedToken id="FE314842932ED3C238CD22558E95DBDB" originalValue="×">x</normalizedToken>
|
||
shorter than outer plate, with two apical papposerrate setae and several setules laterally; outer plate with nine serrate setae (Fig.
|
||
<figureCitation id="F6D1DAFB46530A4949562E0716825648" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8H</figureCitation>
|
||
). Palp short, uniarticulate, 1.2
|
||
<normalizedToken id="FC0EDCC5599C6F64A0558D126F0EA22C" originalValue="×">x</normalizedToken>
|
||
longer than wide, with a distal setule, reaching less than half of distance between base of palp and base of setae on outer plate.
|
||
</paragraph>
|
||
<paragraph id="9DA8CBF20A4D0E7D0583257ECA61D7BA" pageId="0" pageNumber="105">
|
||
Maxilla 2 inner plate 1.1
|
||
<normalizedToken id="A1937C361DF6C4306F3603E499B74017" originalValue="×">x</normalizedToken>
|
||
longer than outer plate; inner plate with one papposerrate seta and several simple and serrate setae apically, with several setules laterally; outer plate with several simple setae, longest apically, with several setules laterally (Fig.
|
||
<figureCitation id="77F77AB5C388F495BA60072A4712870E" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8I</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="219C859EA641A9A808C3C262588841D6" pageId="0" pageNumber="105">
|
||
Maxilliped inner plate 1.7
|
||
<normalizedToken id="C10514C1052BBC003B52214423B44561" originalValue="×">x</normalizedToken>
|
||
longer than wide, apically truncated, with three apical cuspidate setae and several simple setae, without comb-scales; outer plate 1.3
|
||
<normalizedToken id="66E54765130B7A3B34AB551CF474DCC7" originalValue="×">x</normalizedToken>
|
||
longer than inner plate, apically rounded, with several apical and lateral simple setae; palp 2.3
|
||
<normalizedToken id="E8C58116BCCB659BF622984C43FC0AA0" originalValue="×">x</normalizedToken>
|
||
longer than inner plate, 1.7
|
||
<normalizedToken id="09F8B270E6F91256E715D0C9AEBD61DF" originalValue="×">x</normalizedToken>
|
||
longer than outer plate, with four articles; article 1 1.3
|
||
<normalizedToken id="4298C56184306C8340626151D7736413" originalValue="×">x</normalizedToken>
|
||
longer than wide, with strongly concave distal margin; article 2 1.0
|
||
<normalizedToken id="83A7C153A232D5FCB9C904EA6BB9081E" originalValue="×">x</normalizedToken>
|
||
longer than wide, with inner, outer, and distal margins with several long simple setae; article 3 1.2
|
||
<normalizedToken id="A95747C613176619DEC423AE844ED2BB" originalValue="×">x</normalizedToken>
|
||
longer than wide, with inner and outer margins with several simple setae; article 4 unguiform, 1.5
|
||
<normalizedToken id="2AABB45608C81CEB0C364397C6308314" originalValue="×">x</normalizedToken>
|
||
longer than wide, 2.0
|
||
<normalizedToken id="7BFDB4A9E8FEA6F1229515475E0394F2" originalValue="×">x</normalizedToken>
|
||
shorter than third article, with distal simple setae, with distal nail and comb-scales absent (Fig.
|
||
<figureCitation id="5BD34FC253F742F434C52F47CFEB2857" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8J</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="0E4E4F7E84BDE159638B54DDB2FBE360" pageId="0" pageNumber="105">
|
||
Gnathopod 1 subchelate; coxal plate 1.9
|
||
<normalizedToken id="08289DC75860415C0A78E204EB80C15C" originalValue="×">x</normalizedToken>
|
||
wider than long; basis with one simple seta on inner margin and one on disto-posterior corner, ischium with few simple setae on disto-posterior corner; merus with several simple setae on posterior margin; carpus 1.5
|
||
<normalizedToken id="9A591DBAFB9C6A5F439CCD6DB6D1359E" originalValue="×">x</normalizedToken>
|
||
longer than wide, 1.2
|
||
<normalizedToken id="90C92998B5734C2BD8D1728F1611700E" originalValue="×">x</normalizedToken>
|
||
longer and 1.2
|
||
<normalizedToken id="36E3314E39263C7C3D66E161BD619119" originalValue="×">x</normalizedToken>
|
||
wider than propodus, with several simple setae on disto-anterior corner, some with accessory seta, with few simple setae on inner margin, with posterior lobe folded to form scoop-like structure, with pectinate margin with comb-scales, several serrate setae and polygonal pattern; propodus 1.6
|
||
<normalizedToken id="3391B3BEA0C93DF4CB01E6E5D04C765B" originalValue="×">x</normalizedToken>
|
||
longer than wide, hammer-shaped, with simple seta with accessory seta on anterior margin, with inner margin with several simple setae, with several long simple setae on disto-anterior corner; palm slope transverse, margin slightly concave, with many simple setae, with disto-posterior corner with cuspidate seta with accessory seta; dactylus claw-like, congruent with palm, without comb-scales (Fig.
|
||
<figureCitation id="053E17116B31E65DEE2F2F818F713FF0" captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. Hyalella julia sp. nov. Paratype, male A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure9" httpUri="https://binary.pensoft.net/fig/983123" pageId="0" pageNumber="105">9A</figureCitation>
|
||
). Microtrichs present on propodus.
|
||
</paragraph>
|
||
<caption id="7CAA5CACA16A4CC8900C1ACC47C184BA" doi="10.3897/zookeys.1191.113840.figure9" httpUri="https://binary.pensoft.net/fig/983123" pageId="0" pageNumber="105" start="Figure 9" startId="F9">
|
||
<paragraph id="C748A3313AE75B1C92F02746C5605DB8" pageId="0" pageNumber="105">
|
||
<emphasis id="0712036D3211EDB3FDEB00BC469A359D" bold="true" pageId="0" pageNumber="105">Figure 9.</emphasis>
|
||
<taxonomicName id="4931861D4C0552344195041D0D2BF4F3" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella julia" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="julia">
|
||
<emphasis id="17EF6A88BD437CF5106EA6FA72782F70" italics="true" pageId="0" pageNumber="105">Hyalella julia</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. Paratype, male
|
||
<emphasis id="E0E08B2E12F200B852CE848F63266F06" bold="true" pageId="0" pageNumber="105">A</emphasis>
|
||
gnathopod 1
|
||
<emphasis id="14960A7472EFF9DD43D224A345F39EBF" bold="true" pageId="0" pageNumber="105">B</emphasis>
|
||
gnathopod 2. Scale bars: 0.5 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="E2A56C701DE03CF5D69CD28EAACF389D" pageId="0" pageNumber="105">
|
||
Gnathopod 2 subchelate; coxal plate 1.8
|
||
<normalizedToken id="0EBE4717574A2B99D0F4D75BEF5B24D0" originalValue="×">x</normalizedToken>
|
||
wider than long; basis with one simple seta on anterior margin and several simple setae on disto-posterior margin; merus with several simple setae on posterior margin; carpus 2.0
|
||
<normalizedToken id="6F450A750E451A286888C742291DDE69" originalValue="×">x</normalizedToken>
|
||
wider than long, with one simple seta on inner margin and two on disto-anterior, with posterior lobe slim produced between merus and propodus, with posterior margin pectinate, with several serrate setae and comb-scales; propodus ovate, 1.4
|
||
<normalizedToken id="D8D43F2BA7FA86308BC93D34AA09BE8E" originalValue="×">x</normalizedToken>
|
||
longer than wide, with two simple setae on anterior margin; palm subequal to posterior margin of propodus, slope oblique, margin convex, with several long and short simple setae with accessory setae; disto-posterior corner with two cuspidate setae with accessory setae; very shallow cup for dactylus; dactylus claw-like, congruent with palm, without comb-scales (Fig.
|
||
<figureCitation id="BA006D81272B8D4B0674B50631054C72" captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. Hyalella julia sp. nov. Paratype, male A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure9" httpUri="https://binary.pensoft.net/fig/983123" pageId="0" pageNumber="105">9B</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="2594EE54FC0CBC75EF90DB4C6962C292" pageId="0" pageNumber="105">
|
||
Pereopods 3 to 7 simple. Pereopods 3 and 4 (Fig.
|
||
<figureCitation id="470B954A6CB14F9A2F06C7CB6D0BFC87" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Hyalella julia sp. nov. Paratype, male A pereopod 3 B pereopod 4 C pereopod 5 D pereopod 6 E pereopod 7. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure10" httpUri="https://binary.pensoft.net/fig/983124" pageId="0" pageNumber="105">10A, B</figureCitation>
|
||
) with posterior margins of merus and carpus with several simple and cuspidate setae; propodus posterior margin with several simple and cuspidate setae; dactylus 2.6
|
||
<normalizedToken id="5F82794FF5E8190D3EC7EBB842F1E059" originalValue="×">x</normalizedToken>
|
||
and 1.9
|
||
<normalizedToken id="FD1C705CECF62A40F562EF9E61F9E088" originalValue="×">x</normalizedToken>
|
||
shorter than propodus in pereopods 3 and 4, respectively, unguiform. Pereopods 5 to 7 (Fig.
|
||
<figureCitation id="A94FC1A58C3463C5446E6186BC5285E2" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Hyalella julia sp. nov. Paratype, male A pereopod 3 B pereopod 4 C pereopod 5 D pereopod 6 E pereopod 7. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure10" httpUri="https://binary.pensoft.net/fig/983124" pageId="0" pageNumber="105">10C-E</figureCitation>
|
||
) with posterior margins of merus, carpus and propodus with several cuspidate and simple setae; dactylus 2.7
|
||
<normalizedToken id="F26DFA147820A5BBC2086493E63F0489" originalValue="×">x</normalizedToken>
|
||
, 2.6
|
||
<normalizedToken id="E4FF22E76318AB20440CDEEA4AA86F0D" originalValue="×">x</normalizedToken>
|
||
, and 3.0
|
||
<normalizedToken id="3815A884EE560D08BE6A7ED0008D9204" originalValue="×">x</normalizedToken>
|
||
shorter than propodus, respectively, unguiform, with a plumose seta dorsally. Pereopod 3 and 4 of similar sizes, shorter than pereopods 5-7; pereopods 6 and 7 of similar length, pereopod 5 slightly longer than other pereopods.
|
||
</paragraph>
|
||
<caption id="A23CEF6585CED0D969A494CFC3EDF86A" doi="10.3897/zookeys.1191.113840.figure10" httpUri="https://binary.pensoft.net/fig/983124" pageId="0" pageNumber="105" start="Figure 10" startId="F10">
|
||
<paragraph id="C56225CF9ACF573935F25D473C078FB4" pageId="0" pageNumber="105">
|
||
<emphasis id="8EBBDCC7A922FA2B61318F7E95485134" bold="true" pageId="0" pageNumber="105">Figure 10.</emphasis>
|
||
<taxonomicName id="DBD84308D7389556093A412BD6E0E574" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella julia" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="julia">
|
||
<emphasis id="12DD016666A12383C76CB52B3CBAA91A" italics="true" pageId="0" pageNumber="105">Hyalella julia</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. Paratype, male
|
||
<emphasis id="81FAB40BFF85927DBF82088203E733CC" bold="true" pageId="0" pageNumber="105">A</emphasis>
|
||
pereopod 3
|
||
<emphasis id="EB9AB1185EE1DD3321633C74D86F1BF6" bold="true" pageId="0" pageNumber="105">B</emphasis>
|
||
pereopod 4
|
||
<emphasis id="F0A09389035A130D7CC50936F5F0D3D4" bold="true" pageId="0" pageNumber="105">C</emphasis>
|
||
pereopod 5
|
||
<emphasis id="A9F6D36998DE8A0ABAE1E4473C30191B" bold="true" pageId="0" pageNumber="105">D</emphasis>
|
||
pereopod 6
|
||
<emphasis id="306491052219984536FEA52F45D36AEB" bold="true" pageId="0" pageNumber="105">E</emphasis>
|
||
pereopod 7. Scale bars: 0.5 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="1B7EB522831D0D27EB7F570DDCF51213" pageId="0" pageNumber="105">
|
||
Pleopods not modified, biramous, elongated; peduncle 4.0
|
||
<normalizedToken id="75EA54787E6CD2CA3A27DE6E77287CF9" originalValue="×">x</normalizedToken>
|
||
longer than wide, 1.5
|
||
<normalizedToken id="7C6AD5DC80C6026A19AD11A73903BE29" originalValue="×">x</normalizedToken>
|
||
shorter than mean size of rami, with coupling spines distally; both rami multi-annulated, longer than peduncle; articles decreasing in size distally in both rami; both rami with several plumose setae (Fig.
|
||
<figureCitation id="BC388F98702DF43EE6583C605CB7E0AF" captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Hyalella julia sp. nov. Paratype, male A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-C); 0.2 mm (D-F)." figureDoi="10.3897/zookeys.1191.113840.figure11" httpUri="https://binary.pensoft.net/fig/983125" pageId="0" pageNumber="105">11A</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<caption id="D06E0F3C64C6A69EDA36DF6F78016460" doi="10.3897/zookeys.1191.113840.figure11" httpUri="https://binary.pensoft.net/fig/983125" pageId="0" pageNumber="105" start="Figure 11" startId="F11">
|
||
<paragraph id="8D1CB33DDF746D11DCFD977DF9C5813B" pageId="0" pageNumber="105">
|
||
<emphasis id="5AB76F1EEEAB787A2A74863DA7BF3C07" bold="true" pageId="0" pageNumber="105">Figure 11.</emphasis>
|
||
<taxonomicName id="E435544AC47798B16F04DDF319B873A1" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella julia" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="julia">
|
||
<emphasis id="16809C39345DA6ABDD8E5AD2214E797B" italics="true" pageId="0" pageNumber="105">Hyalella julia</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. Paratype, male
|
||
<emphasis id="662EF91A09A2F284DDCABB1154EFC867" bold="true" pageId="0" pageNumber="105">A</emphasis>
|
||
pleopod
|
||
<emphasis id="CF3D1AB40AC74CDFA8DBA33B724C9F05" bold="true" pageId="0" pageNumber="105">B</emphasis>
|
||
uropod 1
|
||
<emphasis id="B1A3DD4E00DD57791C28BD73128F1704" bold="true" pageId="0" pageNumber="105">C</emphasis>
|
||
uropod 2
|
||
<emphasis id="CB5227799C38AB1BAA10A4BD71CCBF03" bold="true" pageId="0" pageNumber="105">D</emphasis>
|
||
uropod 3
|
||
<emphasis id="31B50E1B750EAB54D8EA520F00599353" bold="true" pageId="0" pageNumber="105">E</emphasis>
|
||
male telson
|
||
<emphasis id="BD53A54EC77B5BCA26529D3C996C505B" bold="true" pageId="0" pageNumber="105">F</emphasis>
|
||
paratype, female telson. Scale bars: 0.5 mm (
|
||
<emphasis id="1DF2D16151E066AA906960798CABD0B4" bold="true" pageId="0" pageNumber="105">A-C</emphasis>
|
||
); 0.2 mm (
|
||
<emphasis id="50C1E04A7FEA053154B1F284B8360C84" bold="true" pageId="0" pageNumber="105">D-F</emphasis>
|
||
).
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="2042A52944DEEE67066A70A16CC6B6D8" pageId="0" pageNumber="105">
|
||
Uropod 1 1.3
|
||
<normalizedToken id="86F6C283100143910CBF4B77BCD34BD1" originalValue="×">x</normalizedToken>
|
||
longer than uropod 2; peduncle 1.1
|
||
<normalizedToken id="1CE3593A1A955FCAE6E9822703775286" originalValue="×">x</normalizedToken>
|
||
shorter than outer ramus and 1.2
|
||
<normalizedToken id="62C477EBCE853F54749698CFE100D49A" originalValue="×">x</normalizedToken>
|
||
shorter than inner ramus, with three cuspidate setae; inner ramus 1.1
|
||
<normalizedToken id="4AC2F9D0D531C5510D2129E7DB07BDE3" originalValue="×">x</normalizedToken>
|
||
longer than outer ramus, with four cuspidate setae dorsally, and one long curved seta and five cuspidate setae apically; outer ramus with four cuspidate setae dorsally and five cuspidate setae apically (Fig.
|
||
<figureCitation id="CBF9A8BC07F40B84B8897EE399E48518" captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Hyalella julia sp. nov. Paratype, male A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-C); 0.2 mm (D-F)." figureDoi="10.3897/zookeys.1191.113840.figure11" httpUri="https://binary.pensoft.net/fig/983125" pageId="0" pageNumber="105">11B</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="F42BC2D2CDCF749C99B5BA85CC65E3D0" pageId="0" pageNumber="105">
|
||
Uropod 2 1.3
|
||
<normalizedToken id="A6715B007AA5D9204A8E0BD9DAB56E5F" originalValue="×">x</normalizedToken>
|
||
shorter than uropod 1; peduncle rectangular, 1.0
|
||
<normalizedToken id="2B000FF233EBFE2201C30DD18D30C58A" originalValue="×">x</normalizedToken>
|
||
shorter than outer ramus and 1.3
|
||
<normalizedToken id="0EB078D818311647507238453169676F" originalValue="×">x</normalizedToken>
|
||
than inner ramus, 2.4
|
||
<normalizedToken id="04DAB9EAC8E34F0F580111F5BE6D4BB8" originalValue="×">x</normalizedToken>
|
||
wider than outer ramus and 1.3
|
||
<normalizedToken id="040F0AEFF4FCC3EE072A074EC1BFA64E" originalValue="×">x</normalizedToken>
|
||
than inner ramus, with one cuspidate seta dorsally; inner ramus 1.3
|
||
<normalizedToken id="700341B11C2B1439261A177C1158E04C" originalValue="×">x</normalizedToken>
|
||
longer than outer ramus, with three cuspidate setae dorsally and three cuspidate setae apically; outer ramus with four cuspidate setae dorsally and four cuspidate setae apically (Fig.
|
||
<figureCitation id="6C231A235A79238A0AE51744DD973B5F" captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Hyalella julia sp. nov. Paratype, male A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-C); 0.2 mm (D-F)." figureDoi="10.3897/zookeys.1191.113840.figure11" httpUri="https://binary.pensoft.net/fig/983125" pageId="0" pageNumber="105">11C</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="A3C0191D5F52DE37EB8AC5F8CDD9EE52" pageId="0" pageNumber="105">
|
||
Uropod 3 (Fig.
|
||
<figureCitation id="EF595F87E8EE14B190520FE32990EA83" captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Hyalella julia sp. nov. Paratype, male A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-C); 0.2 mm (D-F)." figureDoi="10.3897/zookeys.1191.113840.figure11" httpUri="https://binary.pensoft.net/fig/983125" pageId="0" pageNumber="105">11D</figureCitation>
|
||
) 1.6
|
||
<normalizedToken id="F758742676900607B34F5796714DA756" originalValue="×">x</normalizedToken>
|
||
shorter than peduncle of uropod 1 and 1.1
|
||
<normalizedToken id="B37A9071EE3752AF817DB1A8994E109F" originalValue="×">x</normalizedToken>
|
||
than peduncle of uropod 2; peduncle 1.9
|
||
<normalizedToken id="DF1AB211E793E4CBF12782909A606C14" originalValue="×">x</normalizedToken>
|
||
longer than wide, 2.0
|
||
<normalizedToken id="C604CCDB2E8C22F692D55EE9819CAB9D" originalValue="×">x</normalizedToken>
|
||
wider than ramus, with six cuspidate setae apically; inner ramus absent; outer ramus uniarticulate, subequal in length to peduncle, with six simple setae apically.
|
||
</paragraph>
|
||
<paragraph id="132B1A0C28C8D2B79C07C77883A2FD2B" pageId="0" pageNumber="105">
|
||
Telson entire, 1.1
|
||
<normalizedToken id="6754FF97BE005D9C78FB548038CB3150" originalValue="×">x</normalizedToken>
|
||
longer than wide, with convex margins, and rounded apically, without setae laterally, and with five cuspidate setae apically (Fig.
|
||
<figureCitation id="1DDE721A67456FA0BC0B8C8A04F4198C" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Hyalella mboitui sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible, with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure2" httpUri="https://binary.pensoft.net/fig/983116" pageId="0" pageNumber="105">2D</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="CBDEF99062795AD31C69271FCC9468ED" pageId="0" pageNumber="105">Coxal gills sac-like present on pereonites 3 to 6; sternal gills tubular and present on pereonites 3 to 7.</paragraph>
|
||
<paragraph id="63870F399E943E2E4192A96EE08B49FA" pageId="0" pageNumber="105">
|
||
<emphasis id="386E3A0F3501B30ED82FDEA5BB7C5CCB" bold="true" pageId="0" pageNumber="105">Female</emphasis>
|
||
(Figs
|
||
<figureCitation id="CA4162B57F86F1DCF5A5C999178D5823" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Hyalella julia sp. nov., Department of Neembucu, Paraguay A holotype, male B allotype, female. Scale bars: 1 mm." figureDoi="10.3897/zookeys.1191.113840.figure7" httpUri="https://binary.pensoft.net/fig/983121" pageId="0" pageNumber="105">7B</figureCitation>
|
||
,
|
||
<figureCitation id="C209A3BA9503374C362C9B737348ABAC" captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Hyalella julia sp. nov. Paratype, male A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-C); 0.2 mm (D-F)." figureDoi="10.3897/zookeys.1191.113840.figure11" httpUri="https://binary.pensoft.net/fig/983125" pageId="0" pageNumber="105">11E</figureCitation>
|
||
,
|
||
<figureCitation id="E6C02279ED8F15B91FA197EDF167E23D" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Hyalella julia sp. nov. Paratype, female A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure12" httpUri="https://binary.pensoft.net/fig/983126" pageId="0" pageNumber="105">12</figureCitation>
|
||
). Mean total body length: 5.23 mm; mean head length: 0.46 mm (
|
||
<emphasis id="809503BEAC1B8C4A3270D1D0A0B74E72" italics="true" pageId="0" pageNumber="105">N</emphasis>
|
||
= 21).
|
||
</paragraph>
|
||
<caption id="6E745045A8186C1D92202E1BFA874073" doi="10.3897/zookeys.1191.113840.figure12" httpUri="https://binary.pensoft.net/fig/983126" pageId="0" pageNumber="105" start="Figure 12" startId="F12">
|
||
<paragraph id="884A1880FBDD88BF1C3C87B0ED90CB20" pageId="0" pageNumber="105">
|
||
<emphasis id="3CAF5821951A459F72B1E1BCE2592DB9" bold="true" pageId="0" pageNumber="105">Figure 12.</emphasis>
|
||
<taxonomicName id="F9619BABC6E3FD0BBD42AB37B7C85633" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella julia" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="julia">
|
||
<emphasis id="50E80E460977BA93F22711237130AF2A" italics="true" pageId="0" pageNumber="105">Hyalella julia</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. Paratype, female
|
||
<emphasis id="29D2146EF586DD7BFA68542D0A51FFCD" bold="true" pageId="0" pageNumber="105">A</emphasis>
|
||
gnathopod 1
|
||
<emphasis id="2A20CEA020C072F079F052042A520685" bold="true" pageId="0" pageNumber="105">B</emphasis>
|
||
gnathopod 2. Scale bars: 0.5 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="41BE62A78AB49547645339DF68E15555" pageId="0" pageNumber="105">Antennae similar in shape to male. Antenna 1 flagellum with 10-11 articles. Antenna 2 flagellum with 11-12 articles.</paragraph>
|
||
<paragraph id="9D0678B9E30F336E9014ADD37DC2932B" pageId="0" pageNumber="105">
|
||
Gnathopod 1 (Fig.
|
||
<figureCitation id="E26C16F4C21972E9FBA547DA98818491" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Hyalella julia sp. nov. Paratype, female A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure12" httpUri="https://binary.pensoft.net/fig/983126" pageId="0" pageNumber="105">12A</figureCitation>
|
||
) slightly larger than male gnathopod 1 different from male gnathopod 1 in shape; basis with few simple setae on disto-anterior and posterior margins; ischium with several simple setae on disto-posterior margin; merus with several simple setae on posterior margin; carpus 1.6
|
||
<normalizedToken id="A14C81573FB5199102FA730712296F08" originalValue="×">x</normalizedToken>
|
||
longer than wide, with several serrate setae on disto-anterior corner, posterior lobe with pectinate margin, with comb-scales and one row of serrate setae; propodus 1.8
|
||
<normalizedToken id="A448A5ED131EBC61F4DF440E20B300CF" originalValue="×">x</normalizedToken>
|
||
longer than wide, hammer-shaped; anterior margin with two simple setae, disto-anterior corner with several simple setae, posterior margin with several simple setae and comb-scales, inner margin with four simple setae; palm slope transverse, margin slightly irregular, slightly concave, with several simple setae, with few simple setae and two long cuspidate setae on disto-posterior corner; dactylus claw-like, with one plumose seta dorsally.
|
||
</paragraph>
|
||
<paragraph id="FC14C1A193BAB8330B30868EE84DD988" pageId="0" pageNumber="105">
|
||
Gnathopod 2 (Fig.
|
||
<figureCitation id="FDEA65D20F34D167A41EFF902AE85EFD" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Hyalella julia sp. nov. Paratype, female A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure12" httpUri="https://binary.pensoft.net/fig/983126" pageId="0" pageNumber="105">12B</figureCitation>
|
||
) similar in size and shape to gnathopod 1; basis and ischium with several simple setae on disto-posterior corner; merus with several simple setae on posterior margin; carpus 1.3
|
||
<normalizedToken id="D8A0E707617C126DC1C11F627AACD2F2" originalValue="×">x</normalizedToken>
|
||
longer than wide, with several simple setae on disto-anterior corner, posterior lobe produced and forming scoop-like structure, pectinate margin with comb-scales, several serrate setae and polygonal pattern; propodus 1.6
|
||
<normalizedToken id="596938E04634425808D6F670C86573C8" originalValue="×">x</normalizedToken>
|
||
longer than wide, hammer-shaped, with comb-scales on disto-posterior margin, with few simple setae on anterior and posterior margins, with several long simple setae on disto-anterior corner, inner face with several simple setae; palm slope oblique, margin slightly irregular, with several simple setae, disto-posterior corner with two simple and two cuspidate setae; dactylus claw-like, with one plumose seta dorsally.
|
||
</paragraph>
|
||
<paragraph id="E5365452D5696DAB7170611867A4BAF3" pageId="0" pageNumber="105">Telson subequal in length and width, with more convex lateral margins than in male, and with five cuspidate setae, one with accessory seta.</paragraph>
|
||
<paragraph id="CCF9B3EB77B62EFF1E4CC16CE79AF191" pageId="0" pageNumber="105">Uropod 1 similar in size and shape to male uropod 1, except for absence of curved seta.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="987CDB5F99C5EF59DE75182AB08EB0B9" pageId="0" pageNumber="105" type="habitat">
|
||
<paragraph id="03F8F4BD18D5453F2E7382B34437C6DD" pageId="0" pageNumber="105">Habitat.</paragraph>
|
||
<paragraph id="813024D92356EF424F9D221C29D8392C" pageId="0" pageNumber="105">Freshwater, epigean.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="4466330DF3EA910AA66CF675D4552455" pageId="0" pageNumber="105" type="distribution">
|
||
<paragraph id="6C0E5695731C17D3CBA71844CB4FF271" pageId="0" pageNumber="105">Distribution.</paragraph>
|
||
<paragraph id="3C0F602D5B552F97D35C169199D577D9" pageId="0" pageNumber="105">
|
||
Paraguay, Department of
|
||
<normalizedToken id="A45F32935A63045567B646410D5BE86D" originalValue="Ñeembucú">Neembucu</normalizedToken>
|
||
, Pilar. Field locality of Yegros Paso (
|
||
<geoCoordinate id="FE28024955F7D0996C3BF3720CC3E829" degrees="26" direction="south" minutes="51" orientation="latitude" precision="15" seconds="51" value="-26.864166">26°51'51"S</geoCoordinate>
|
||
,
|
||
<geoCoordinate id="E927E47C7054B500C93E8DE4A617C429" degrees="58" direction="west" minutes="16" orientation="longitude" precision="15" seconds="11" value="-58.269722">58°16'11"W</geoCoordinate>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="0D096BB68870F462314386AA6F82D94D" pageId="0" pageNumber="105" type="etymology">
|
||
<paragraph id="2BB594A4ADCAF32563FC7C9938E457AE" pageId="0" pageNumber="105">Etymology.</paragraph>
|
||
<paragraph id="8827C079A4D2E41D7ED8241C81B44CF3" pageId="0" pageNumber="105">
|
||
In honour of the late Don Julio Rafael Contreras, for his seminal studies of Paraguayan biodiversity and generous support of
|
||
<normalizedToken id="257CBB6F030E5F58EE565D266E303B0C" originalValue="Fundación">Fundacion</normalizedToken>
|
||
Para La Tierra.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="F51FE22B46699C19751FE8A98C87B3E0" pageId="0" pageNumber="105" type="taxonomic remarks">
|
||
<paragraph id="A115843D0C53646A263BBDA9DDB5D4BA" pageId="0" pageNumber="105">Taxonomic remarks</paragraph>
|
||
<paragraph id="625BC527DE44C70F59E06673216C66D7" pageId="0" pageNumber="105">
|
||
<taxonomicName id="A69313576CDBD0A79F82B1D0776C3D21" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella mboitui" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="mboitui">
|
||
<emphasis id="880A366356A0E8CDFAF75E66B6A95B58" italics="true" pageId="0" pageNumber="105">Hyalella mboitui</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. and
|
||
<taxonomicName id="AC525B68849C3D81AE9D886C50D925F3" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="8657A0F5AF1410636B04BC1D2D570962" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. can be recognised as distinct species based on the taxonomic keys by
|
||
<bibRefCitation id="0E824859645E11BAFFA0B6074A2572AB" author="Damborenea, C" journalOrPublisher="Neotropica" pageId="0" pageNumber="105" refId="B6" refString="Damborenea, C, Rogers, DC, Thorp, JH [Eds], 2020. Thorp and Covich's Freshwater Invertebrates (Vol. 5): Keys to Neotropical and Antarctic Fauna. Academic Press, London." title="Thorp and Covich's Freshwater Invertebrates (Vol. 5): Keys to Neotropical and Antarctic Fauna. Academic Press, London." year="2020">Damborenea et al. (2020)</bibRefCitation>
|
||
and morphological differences from other recently described South American species (
|
||
<bibRefCitation id="9A77BFA9962D4DCB456A840E42A19DD4" DOI="https://doi.org/10.1590/1676-0611-bn-2019-0879" author="Reis, GO" journalOrPublisher="Biota Neotropica" pageId="0" pageNumber="105" pagination="1 - 2" refId="B22" refString="Reis, GO, Penoni, LR, Bueno, AA, 2020. First record of the genus Hyalella (Amphipoda: Hyalellidae) from Santa Catarina State, Brazil, with description of two new species. Biota Neotropica 20 (2): 1 - 2, DOI: https://doi.org/10.1590/1676-0611-bn-2019-0879" title="First record of the genus Hyalella (Amphipoda: Hyalellidae) from Santa Catarina State, Brazil, with description of two new species." url="https://doi.org/10.1590/1676-0611-bn-2019-0879" volume="20" year="2020">Reis et al. 2020</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="70F4B1476BF57DDCE87C4BDF640052C3" DOI="https://doi.org/10.1163/18759866-bja10021" author="Jaume, D" journalOrPublisher="Contributions to Zoology" pageId="0" pageNumber="105" pagination="409 - 462" refId="B15" refString="Jaume, D, Zapelloni, F, Pons, J, Juan, C, Jurado-Rivera, JA, 2021. The Hyalella species flock of Lake Titicaca (Crustacea: Amphipoda): perspectives and drawbacks of DNA-based identification. Contributions to Zoology 90 (4-5): 409 - 462, DOI: https://doi.org/10.1163/18759866-bja10021" title="The Hyalella species flock of Lake Titicaca (Crustacea: Amphipoda): perspectives and drawbacks of DNA-based identification." url="https://doi.org/10.1163/18759866-bja10021" volume="90" year="2021">Jaume et al. 2021</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="63D802E0DEF7A91598B802DFE85DD802" DOI="https://doi.org/10.11646/zootaxa.5026.2.2" author="Limberger, M" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="182 - 200" refId="B16" refString="Limberger, M, Castiglioni, DDS, Graichen, DAS, 2021. A new species of freshwater amphipod (Crustacea, Peracarida, Hyalellidae) from Southern Brazil. Zootaxa 5026 (2): 182 - 200, DOI: https://doi.org/10.11646/zootaxa.5026.2.2" title="A new species of freshwater amphipod (Crustacea, Peracarida, Hyalellidae) from Southern Brazil." url="https://doi.org/10.11646/zootaxa.5026.2.2" volume="5026" year="2021">Limberger et al. 2021</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="ABD8FDB410531C4163E74A77F8309911" DOI="https://doi.org/10.1093/jcbiol/ruab050" author="Rocha Penoni, L" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" refId="B24" refString="Rocha Penoni, L, Alvarenga Lares, MM, de Padua Bueno, AA, 2021. Description of two new species of the freshwater amphipod Hyalella Smith, 1874 (Amphipoda: Hyalellidae) from southeastern Brazil, with remarks on their population biology and reproduction. Journal of Crustacean Biology 41(3): ruab050. https://doi.org/10.1093/jcbiol/ruab050" title="Description of two new species of the freshwater amphipod Hyalella Smith, 1874 (Amphipoda: Hyalellidae) from southeastern Brazil, with remarks on their population biology and reproduction. Journal of Crustacean Biology 41 (3): ruab 050." url="https://doi.org/10.1093/jcbiol/ruab050" year="2021">Rocha Penoni et al. 2021</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="DA19F39C90589CDCB090EC803D3339D6" DOI="https://doi.org/10.1080/01650521.2021.1964902" author="Talhaferro, JT" journalOrPublisher="Studies on Neotropical Fauna and Environment" pageId="0" pageNumber="105" pagination="356 - 372" refId="B29" refString="Talhaferro, JT, Pires, MM, Stenert, C, Maltchik, L, Bueno, AADP, Kotzian, CB, 2021a. Diversity and distribution of the genus Hyalella (Crustacea: Amphipoda: Hyalellidae) in temporary wetlands from the southern Brazilian Coastal Plain, with a taxonomic key to the species in the region. Studies on Neotropical Fauna and Environment 58 (2): 356 - 372, DOI: https://doi.org/10.1080/01650521.2021.1964902" title="Diversity and distribution of the genus Hyalella (Crustacea: Amphipoda: Hyalellidae) in temporary wetlands from the southern Brazilian Coastal Plain, with a taxonomic key to the species in the region." url="https://doi.org/10.1080/01650521.2021.1964902" volume="58" year="2021 a">Talhaferro et al. 2021a</bibRefCitation>
|
||
,
|
||
<bibRefCitation id="9342BDBAFDE1FCA71748D57C2173829C" DOI="https://doi.org/10.11646/zootaxa.4970.2.2" author="Talhaferro, JT" journalOrPublisher="Studies on Neotropical Fauna and Environment" pageId="0" pageNumber="105" refId="B30" refString="Talhaferro, JT, Bueno, AALDP, Pires, MM, Stenert, C, Maltchik, L, Kotzian, CB, 2021b. Three new species of Hyalella (Crustacea: Amphipoda: Hyalellidae) from the Southern Brazilian Coastal Plain. Zootaxa 4970(2): e257292. https://doi.org/10.11646/zootaxa.4970.2.2" title="Three new species of Hyalella (Crustacea: Amphipoda: Hyalellidae) from the Southern Brazilian Coastal Plain. Zootaxa 4970 (2): e 257292." url="https://doi.org/10.11646/zootaxa.4970.2.2" year="2021 b">b</bibRefCitation>
|
||
; Vernica et al. 2022;
|
||
<bibRefCitation id="F48B7848271B5196410A8B74E70C7D2D" DOI="https://doi.org/10.3897/asp.80.e79498" author="Waller, A" journalOrPublisher="Arthropod Systematics & Phylogeny" pageId="0" pageNumber="105" pagination="261 - 278" refId="B34" refString="Waller, A, Gonzalez, ER, Verdi, A, Tomasco, IH, 2022. Genus Hyalella (Amphipoda: Hyalellidae) in Humid Pampas: molecular diversity and a provisional new species. Arthropod Systematics & Phylogeny 80: 261 - 278, DOI: https://doi.org/10.3897/asp.80.e79498" title="Genus Hyalella (Amphipoda: Hyalellidae) in Humid Pampas: molecular diversity and a provisional new species." url="https://doi.org/10.3897/asp.80.e79498" volume="80" year="2022">Waller et al. 2022</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="51813000ED47E95A639145CB213DE2C3" DOI="https://doi.org/10.11646/zootaxa.5264.1.1" author="Peralta, MA" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="1 - 26" refId="B21" refString="Peralta, MA, Veronica, IMA, 2023. South America stygobiont crustaceans: A new species of Hyalellidae (Amphipoda) and new reports of Stygocarididae (Anaspidacea) and Protojaniridae (Isopoda) from Calingasta Valley, Pre-Andean region, San Juan, Argentina. Zootaxa 5264 (1): 1 - 26, DOI: https://doi.org/10.11646/zootaxa.5264.1.1" title="South America stygobiont crustaceans: A new species of Hyalellidae (Amphipoda) and new reports of Stygocarididae (Anaspidacea) and Protojaniridae (Isopoda) from Calingasta Valley, Pre-Andean region, San Juan, Argentina." url="https://doi.org/10.11646/zootaxa.5264.1.1" volume="5264" year="2023">
|
||
Peralta and
|
||
<normalizedToken id="D2FBFFDEB96DC145B3B4063AD22C806C" originalValue="Verónica">Veronica</normalizedToken>
|
||
2023
|
||
</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="4F966F190D3C0AE76EC2577CBBC969E0" DOI="https://doi.org/10.11646/zootaxa.5319.3.3" author="Reis, GO" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="351 - 372" refId="B23" refString="Reis, GO, Bueno, AAP, Araujo, PB, 2023. Two new species of Hyalella Smith, 1874 (Malacostraca: Amphipoda: Hyalellidae) from the state of Santa Catarina, Brazil. Zootaxa 5319 (3): 351 - 372, DOI: https://doi.org/10.11646/zootaxa.5319.3.3" title="Two new species of Hyalella Smith, 1874 (Malacostraca: Amphipoda: Hyalellidae) from the state of Santa Catarina, Brazil." url="https://doi.org/10.11646/zootaxa.5319.3.3" volume="5319" year="2023">Reis et al. 2023</bibRefCitation>
|
||
). Both
|
||
<taxonomicName id="13EA0BEA4D4508DDBEFAA811897D8D5E" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="42A0B8CD96CABB94808E9276A9CA9A67" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="E9A21A7AE849739689B86F0648294A21" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="3DAFCC40F7F41C150024F20BCCD8F28D" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
show a smooth body without dorsal or lateral processes or mucronations, have pigmented eyes, and lack setae on the dorsal margin of uropod 3. The presence of a curved seta on the ramus of male uropod 1 links both new taxa to a large cluster of South American species spanning Venezuela, Brazil, Chile, Argentina and Uruguay (
|
||
<bibRefCitation id="3A548BAA458CBFFC932E1C9AB5595BBF" DOI="https://doi.org/10.11646/zootaxa.3350.1.4" author="Bastos-Pereira, R" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="58 - 68" refId="B1" refString="Bastos-Pereira, R, Bueno, ADP, 2012. New species and new report of Hyalella SI Smith, 1874 (Crustacea: Amphipoda: Dogielinotidae) from Minas Gerais state, Southeastern Brazil. Zootaxa 3350 (1): 58 - 68, DOI: https://doi.org/10.11646/zootaxa.3350.1.4" title="New species and new report of Hyalella SI Smith, 1874 (Crustacea: Amphipoda: Dogielinotidae) from Minas Gerais state, Southeastern Brazil." url="https://doi.org/10.11646/zootaxa.3350.1.4" volume="3350" year="2012">Bastos-Pereira and Bueno 2012</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="4FA8B021FD5F35CDCCD520C2ED3209F5" DOI="https://doi.org/10.11646/zootaxa.3815.2.2" author="Rodrigues, SG" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="200 - 214" refId="B25" refString="Rodrigues, SG, Bueno, ADP, Ferreira, RL, 2014. A new troglobiotic species of Hyalella (Crustacea, Amphipoda, Hyalellidae) with a taxonomic key for the Brazilian species. Zootaxa 3815 (2): 200 - 214, DOI: https://doi.org/10.11646/zootaxa.3815.2.2" title="A new troglobiotic species of Hyalella (Crustacea, Amphipoda, Hyalellidae) with a taxonomic key for the Brazilian species." url="https://doi.org/10.11646/zootaxa.3815.2.2" volume="3815" year="2014">Rodrigues et al. 2014</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="0DF2CB9DB1BD4D56C2162D64FEBB34EB" author="Damborenea, C" journalOrPublisher="Neotropica" pageId="0" pageNumber="105" refId="B6" refString="Damborenea, C, Rogers, DC, Thorp, JH [Eds], 2020. Thorp and Covich's Freshwater Invertebrates (Vol. 5): Keys to Neotropical and Antarctic Fauna. Academic Press, London." title="Thorp and Covich's Freshwater Invertebrates (Vol. 5): Keys to Neotropical and Antarctic Fauna. Academic Press, London." year="2020">Damborenea et al. 2020</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="B720DA2B2A16B799696D8E4075E72F3C" DOI="https://doi.org/10.1080/01650521.2021.1964902" author="Talhaferro, JT" journalOrPublisher="Studies on Neotropical Fauna and Environment" pageId="0" pageNumber="105" pagination="356 - 372" refId="B29" refString="Talhaferro, JT, Pires, MM, Stenert, C, Maltchik, L, Bueno, AADP, Kotzian, CB, 2021a. Diversity and distribution of the genus Hyalella (Crustacea: Amphipoda: Hyalellidae) in temporary wetlands from the southern Brazilian Coastal Plain, with a taxonomic key to the species in the region. Studies on Neotropical Fauna and Environment 58 (2): 356 - 372, DOI: https://doi.org/10.1080/01650521.2021.1964902" title="Diversity and distribution of the genus Hyalella (Crustacea: Amphipoda: Hyalellidae) in temporary wetlands from the southern Brazilian Coastal Plain, with a taxonomic key to the species in the region." url="https://doi.org/10.1080/01650521.2021.1964902" volume="58" year="2021 a">Talhaferro et al. 2021a</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="0D3192D14EF8006735C5DD942459DA83" pageId="0" pageNumber="105">
|
||
Like
|
||
<taxonomicName id="A1C90DD3AC32E39DDF6AD969B89DF337" lsidName="H. brasiliensis" pageId="0" pageNumber="105" rank="species" species="brasiliensis">
|
||
<emphasis id="A7FAD81440B99D1E982697110C141B18" italics="true" pageId="0" pageNumber="105">H. brasiliensis</emphasis>
|
||
</taxonomicName>
|
||
Bousfield, 1996 from
|
||
<normalizedToken id="24CA69C6253D0288443CFA45A33941E1" originalValue="Paraná">Parana</normalizedToken>
|
||
State (Brazil), both
|
||
<taxonomicName id="81CB0F1B592A8083C892C3695637FDC3" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="BB63C131070EA7DDA8A5D9543A59D34F" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="90693F4CEB15DEF125BB9601C8134370" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="213A37996831E9404A5655BC89494CAF" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
lack plumose setae on their telson, but can be readily distinguished from this species by the number of setae on uropods 1 and 2 (
|
||
<bibRefCitation id="B027F34912A1CA8AD3263F80C09D4F6C" author="Bousfield, EL" journalOrPublisher="Bolletino del Museo Civico di Storia Naturale di Verona" pageId="0" pageNumber="105" pagination="175 - 224" refId="B2" refString="Bousfield, EL, 1996. A contribution to the reclassification of Neotropical freshwater hyalellid amphipods (Crustacea: Gammaridea, Talitroidea). Bolletino del Museo Civico di Storia Naturale di Verona 20: 175 - 224" title="A contribution to the reclassification of Neotropical freshwater hyalellid amphipods (Crustacea: Gammaridea, Talitroidea)." volume="20" year="1996">Bousfield 1996</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="6BF90A083A9969B286A0512BE0FFF5B3" DOI="https://doi.org/10.1080/01650521.2021.1964902" author="Talhaferro, JT" journalOrPublisher="Studies on Neotropical Fauna and Environment" pageId="0" pageNumber="105" pagination="356 - 372" refId="B29" refString="Talhaferro, JT, Pires, MM, Stenert, C, Maltchik, L, Bueno, AADP, Kotzian, CB, 2021a. Diversity and distribution of the genus Hyalella (Crustacea: Amphipoda: Hyalellidae) in temporary wetlands from the southern Brazilian Coastal Plain, with a taxonomic key to the species in the region. Studies on Neotropical Fauna and Environment 58 (2): 356 - 372, DOI: https://doi.org/10.1080/01650521.2021.1964902" title="Diversity and distribution of the genus Hyalella (Crustacea: Amphipoda: Hyalellidae) in temporary wetlands from the southern Brazilian Coastal Plain, with a taxonomic key to the species in the region." url="https://doi.org/10.1080/01650521.2021.1964902" volume="58" year="2021 a">Talhaferro et al. 2021a</bibRefCitation>
|
||
,
|
||
<bibRefCitation id="FC43B00D665F7366B5DCCD219A8442B6" DOI="https://doi.org/10.11646/zootaxa.4970.2.2" author="Talhaferro, JT" journalOrPublisher="Studies on Neotropical Fauna and Environment" pageId="0" pageNumber="105" refId="B30" refString="Talhaferro, JT, Bueno, AALDP, Pires, MM, Stenert, C, Maltchik, L, Kotzian, CB, 2021b. Three new species of Hyalella (Crustacea: Amphipoda: Hyalellidae) from the Southern Brazilian Coastal Plain. Zootaxa 4970(2): e257292. https://doi.org/10.11646/zootaxa.4970.2.2" title="Three new species of Hyalella (Crustacea: Amphipoda: Hyalellidae) from the Southern Brazilian Coastal Plain. Zootaxa 4970 (2): e 257292." url="https://doi.org/10.11646/zootaxa.4970.2.2" year="2021 b">b</bibRefCitation>
|
||
). The presence of six apical setae on the rectangular peduncle of uropod 3 and its rectangular (longer than wide) shape in
|
||
<taxonomicName id="77E63BB2501CA93436D0921FDA30E89A" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="A083CE7ACDD32C291851C501994B67AF" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="C4026057BB30521533BA39923EB32E02" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="C80EDE0B36BF4D46D1B81DE605A959AA" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
are shared with the Argentinian taxa
|
||
<taxonomicName id="A7A1866625CE599298DDDF8B435CAEE2" lsidName="H. pampeana" pageId="0" pageNumber="105" rank="species" species="pampeana">
|
||
<emphasis id="99F541957399340476ADD74112E528D2" italics="true" pageId="0" pageNumber="105">H. pampeana</emphasis>
|
||
</taxonomicName>
|
||
Cavalieri, 1968 and
|
||
<taxonomicName id="923E4B4D30DCD0C124A2DDAD689D11C0" lsidName="H. bonariensis" pageId="0" pageNumber="105" rank="species" species="bonariensis">
|
||
<emphasis id="885E84047F54422AEDAA6D6EF2E40B89" italics="true" pageId="0" pageNumber="105">H. bonariensis</emphasis>
|
||
</taxonomicName>
|
||
Dos Santos, Bond-Buckup & Araujo, 2008, and with
|
||
<taxonomicName id="6D6EBC5D14C5D7987CC8D4C6D9CE5F2A" lsidName="H. gauchensis" pageId="0" pageNumber="105" rank="species" species="gauchensis">
|
||
<emphasis id="243F9F42A6AFDC1C0D2E03ADED6F1C53" italics="true" pageId="0" pageNumber="105">H. gauchensis</emphasis>
|
||
</taxonomicName>
|
||
<bibRefCitation id="75E27794E98484C3BA5BFB1C44A60A63" DOI="https://doi.org/10.11646/zootaxa.4337.2.5" author="Streck, MT" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="263 - 278" refId="B27" refString="Streck, MT, Cardoso, GM, Rodrigues, SG, Graichen, DAS, Castiglioni, DS, 2017. Two new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil. Zootaxa 4337 (2): 263 - 278, DOI: https://doi.org/10.11646/zootaxa.4337.2.5" title="Two new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil." url="https://doi.org/10.11646/zootaxa.4337.2.5" volume="4337" year="2017">Streck et al., 2017</bibRefCitation>
|
||
from Rio Grande do Sul, Brazil (
|
||
<bibRefCitation id="C3A2235C1B0E8C14BF436908ADE9798B" author="Damborenea, C" journalOrPublisher="Neotropica" pageId="0" pageNumber="105" refId="B6" refString="Damborenea, C, Rogers, DC, Thorp, JH [Eds], 2020. Thorp and Covich's Freshwater Invertebrates (Vol. 5): Keys to Neotropical and Antarctic Fauna. Academic Press, London." title="Thorp and Covich's Freshwater Invertebrates (Vol. 5): Keys to Neotropical and Antarctic Fauna. Academic Press, London." year="2020">Damborenea et al. 2020</bibRefCitation>
|
||
). However, the two Paraguayan species lack the space between the dactylus and the margin of the propodus of male gnathopod 2 characteristics of
|
||
<taxonomicName id="0300EFE3C025142B27578292C72E985A" lsidName="H. pampeana" pageId="0" pageNumber="105" rank="species" species="pampeana">
|
||
<emphasis id="64FCD16E0AA4472EAC941E432A7B3F1D" italics="true" pageId="0" pageNumber="105">H. pampeana</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation id="92C250EAF69E10544D3D686092BBABD0" DOI="https://doi.org/10.11646/zootaxa.1760.1.2" author="Dos Santos, A" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="24 - 36" refId="B8" refString="Dos Santos, A, Araujo, P, Bond-Buckup, G, 2008. New species and new reports of Hyalella (Crustacea, Amphipoda, Dogielinotidae) from Argentina. Zootaxa 1760 (1): 24 - 36, DOI: https://doi.org/10.11646/zootaxa.1760.1.2" title="New species and new reports of Hyalella (Crustacea, Amphipoda, Dogielinotidae) from Argentina." url="https://doi.org/10.11646/zootaxa.1760.1.2" volume="1760" year="2008">Dos Santos et al. 2008</bibRefCitation>
|
||
) and differ markedly from
|
||
<taxonomicName id="2246DB607F8278F3A24AF43DB70720B6" lsidName="H. bonariensis" pageId="0" pageNumber="105" rank="species" species="bonariensis">
|
||
<emphasis id="9C4F436084ED7C3F8B8BAD211F2809B2" italics="true" pageId="0" pageNumber="105">H. bonariensis</emphasis>
|
||
</taxonomicName>
|
||
in the pattern and distribution of setae and comb-scales on their limbs and telson, as well as in the numbers of denticles on the mandibular incisor and lacinia mobilis (
|
||
<bibRefCitation id="C790A3FC511FF4883DC562D25BD9A4BF" DOI="https://doi.org/10.11646/zootaxa.1760.1.2" author="Dos Santos, A" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="24 - 36" refId="B8" refString="Dos Santos, A, Araujo, P, Bond-Buckup, G, 2008. New species and new reports of Hyalella (Crustacea, Amphipoda, Dogielinotidae) from Argentina. Zootaxa 1760 (1): 24 - 36, DOI: https://doi.org/10.11646/zootaxa.1760.1.2" title="New species and new reports of Hyalella (Crustacea, Amphipoda, Dogielinotidae) from Argentina." url="https://doi.org/10.11646/zootaxa.1760.1.2" volume="1760" year="2008">Dos Santos et al. 2008</bibRefCitation>
|
||
). In addition, they differ from
|
||
<taxonomicName id="A7979D6430BB943DD9F3EE819A23F1B3" lsidName="H. gauchensis" pageId="0" pageNumber="105" rank="species" species="gauchensis">
|
||
<emphasis id="BCCEFF4CABCDB425A2418250102F7997" italics="true" pageId="0" pageNumber="105">H. gauchensis</emphasis>
|
||
</taxonomicName>
|
||
in their mandibular morphology and setal cover of the telson and uropods (cf.
|
||
<bibRefCitation id="9CAB7AE65F7D403446915B4A71E64D0C" DOI="https://doi.org/10.11646/zootaxa.4337.2.5" author="Streck, MT" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="263 - 278" refId="B27" refString="Streck, MT, Cardoso, GM, Rodrigues, SG, Graichen, DAS, Castiglioni, DS, 2017. Two new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil. Zootaxa 4337 (2): 263 - 278, DOI: https://doi.org/10.11646/zootaxa.4337.2.5" title="Two new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil." url="https://doi.org/10.11646/zootaxa.4337.2.5" volume="4337" year="2017">Streck et al. 2017</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="280008534C8E0E999C6E794658215571" pageId="0" pageNumber="105">
|
||
The two new Paraguayan taxa are also readily distinguishable from recently described
|
||
<taxonomicName id="68F600FA8EEBEFB28C2FD21AF8989540" authorityName="S. I. Smith" authorityYear="1874" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="507E3E895FEFA1A4B91E8778CD96742D" italics="true" pageId="0" pageNumber="105">Hyalella</emphasis>
|
||
</taxonomicName>
|
||
species from nearby Argentina (
|
||
<bibRefCitation id="070D9C2BFFBDCFC78F15E3165862646C" DOI="https://doi.org/10.3897/zookeys.865.32878" author="Peralta, MA" journalOrPublisher="ZooKeys" pageId="0" pageNumber="105" pagination="87 - 102" refId="B20" refString="Peralta, MA, Miranda, AVI, 2019. A new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from the Puna biogeographic province in Argentina. ZooKeys 865: 87 - 102, DOI: https://doi.org/10.3897/zookeys.865.32878" title="A new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from the Puna biogeographic province in Argentina." url="https://doi.org/10.3897/zookeys.865.32878" volume="865" year="2019">Peralta and Miranda 2019</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="14BAA3956EFC6052E2A887AD92331BFA" DOI="https://doi.org/10.11646/zootaxa.5105.2.2" author="Vernica, IMG" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="202 - 218" refId="B33" refString="Vernica, IMG, Alejandra, PM, 2022. A new Hyalella species (Crustacea: Amphipoda: Hyalellidae) from South American Highlands (Argentina) with comments on its cuticular ultrastructure. Zootaxa 5105 (2): 202 - 218, DOI: https://doi.org/10.11646/zootaxa.5105.2.2" title="A new Hyalella species (Crustacea: Amphipoda: Hyalellidae) from South American Highlands (Argentina) with comments on its cuticular ultrastructure." url="https://doi.org/10.11646/zootaxa.5105.2.2" volume="5105" year="2022">Vernica and Alejandra 2022</bibRefCitation>
|
||
) and southern Brazil (
|
||
<bibRefCitation id="D2813E4DF982AD17CE9A8F68553CA10E" DOI="https://doi.org/10.1590/1676-0611-bn-2019-0879" author="Reis, GO" journalOrPublisher="Biota Neotropica" pageId="0" pageNumber="105" pagination="1 - 2" refId="B22" refString="Reis, GO, Penoni, LR, Bueno, AA, 2020. First record of the genus Hyalella (Amphipoda: Hyalellidae) from Santa Catarina State, Brazil, with description of two new species. Biota Neotropica 20 (2): 1 - 2, DOI: https://doi.org/10.1590/1676-0611-bn-2019-0879" title="First record of the genus Hyalella (Amphipoda: Hyalellidae) from Santa Catarina State, Brazil, with description of two new species." url="https://doi.org/10.1590/1676-0611-bn-2019-0879" volume="20" year="2020">Reis et al. 2020</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="71EA65BE55E7E6DD4322172B07248341" DOI="https://doi.org/10.11646/zootaxa.5026.2.2" author="Limberger, M" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="182 - 200" refId="B16" refString="Limberger, M, Castiglioni, DDS, Graichen, DAS, 2021. A new species of freshwater amphipod (Crustacea, Peracarida, Hyalellidae) from Southern Brazil. Zootaxa 5026 (2): 182 - 200, DOI: https://doi.org/10.11646/zootaxa.5026.2.2" title="A new species of freshwater amphipod (Crustacea, Peracarida, Hyalellidae) from Southern Brazil." url="https://doi.org/10.11646/zootaxa.5026.2.2" volume="5026" year="2021">Limberger et al. 2021</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="BA416E25AB58E069FBAC6D43BE26C7AB" DOI="https://doi.org/10.1093/jcbiol/ruab050" author="Rocha Penoni, L" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" refId="B24" refString="Rocha Penoni, L, Alvarenga Lares, MM, de Padua Bueno, AA, 2021. Description of two new species of the freshwater amphipod Hyalella Smith, 1874 (Amphipoda: Hyalellidae) from southeastern Brazil, with remarks on their population biology and reproduction. Journal of Crustacean Biology 41(3): ruab050. https://doi.org/10.1093/jcbiol/ruab050" title="Description of two new species of the freshwater amphipod Hyalella Smith, 1874 (Amphipoda: Hyalellidae) from southeastern Brazil, with remarks on their population biology and reproduction. Journal of Crustacean Biology 41 (3): ruab 050." url="https://doi.org/10.1093/jcbiol/ruab050" year="2021">Rocha Penoni et al. 2021</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="E6B5696F1C6FCA5F5233ADE185C776CF" DOI="https://doi.org/10.1080/01650521.2021.1964902" author="Talhaferro, JT" journalOrPublisher="Studies on Neotropical Fauna and Environment" pageId="0" pageNumber="105" pagination="356 - 372" refId="B29" refString="Talhaferro, JT, Pires, MM, Stenert, C, Maltchik, L, Bueno, AADP, Kotzian, CB, 2021a. Diversity and distribution of the genus Hyalella (Crustacea: Amphipoda: Hyalellidae) in temporary wetlands from the southern Brazilian Coastal Plain, with a taxonomic key to the species in the region. Studies on Neotropical Fauna and Environment 58 (2): 356 - 372, DOI: https://doi.org/10.1080/01650521.2021.1964902" title="Diversity and distribution of the genus Hyalella (Crustacea: Amphipoda: Hyalellidae) in temporary wetlands from the southern Brazilian Coastal Plain, with a taxonomic key to the species in the region." url="https://doi.org/10.1080/01650521.2021.1964902" volume="58" year="2021 a">Talhaferro et al. 2021a</bibRefCitation>
|
||
,
|
||
<bibRefCitation id="8E4E3FD5BCA5CA0D1943B3B83D2AEED8" DOI="https://doi.org/10.11646/zootaxa.4970.2.2" author="Talhaferro, JT" journalOrPublisher="Studies on Neotropical Fauna and Environment" pageId="0" pageNumber="105" refId="B30" refString="Talhaferro, JT, Bueno, AALDP, Pires, MM, Stenert, C, Maltchik, L, Kotzian, CB, 2021b. Three new species of Hyalella (Crustacea: Amphipoda: Hyalellidae) from the Southern Brazilian Coastal Plain. Zootaxa 4970(2): e257292. https://doi.org/10.11646/zootaxa.4970.2.2" title="Three new species of Hyalella (Crustacea: Amphipoda: Hyalellidae) from the Southern Brazilian Coastal Plain. Zootaxa 4970 (2): e 257292." url="https://doi.org/10.11646/zootaxa.4970.2.2" year="2021 b">b</bibRefCitation>
|
||
) by the number and type of setae on the telson and uropods 1 and 3 (Figs
|
||
<figureCitation id="E3FE1C4C9D7447DE2D15827A3B3CB795" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Hyalella mboitui sp. nov. Paratype, male. A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-D); 0.2 mm (E, F)." figureDoi="10.3897/zookeys.1191.113840.figure5" httpUri="https://binary.pensoft.net/fig/983119" pageId="0" pageNumber="105">5B, D</figureCitation>
|
||
,
|
||
<figureCitation id="6348B4287088FD4D565A8E2079243493" captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Hyalella julia sp. nov. Paratype, male A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-C); 0.2 mm (D-F)." figureDoi="10.3897/zookeys.1191.113840.figure11" httpUri="https://binary.pensoft.net/fig/983125" pageId="0" pageNumber="105">11B, D</figureCitation>
|
||
). Their level of morphological differentiation also indicates that the new Paraguayan species cannot be subsumed under the South American
|
||
<taxonomicName id="2817C938C20C6F589849621F788A724E" lsidName="H. curvispina" pageId="0" pageNumber="105" rank="species" species="curvispina">
|
||
<emphasis id="4C48C27ED47D1D900B98E74ADFA9D94C" italics="true" pageId="0" pageNumber="105">H. curvispina</emphasis>
|
||
</taxonomicName>
|
||
Shoemaker, 1942 species complex, which appears to comprise significant cryptic diversity based on recent molecular marker analyses (
|
||
<bibRefCitation id="BA54C7E4B80BDA59C317A42BB3B54E37" DOI="https://doi.org/10.3897/asp.80.e79498" author="Waller, A" journalOrPublisher="Arthropod Systematics & Phylogeny" pageId="0" pageNumber="105" pagination="261 - 278" refId="B34" refString="Waller, A, Gonzalez, ER, Verdi, A, Tomasco, IH, 2022. Genus Hyalella (Amphipoda: Hyalellidae) in Humid Pampas: molecular diversity and a provisional new species. Arthropod Systematics & Phylogeny 80: 261 - 278, DOI: https://doi.org/10.3897/asp.80.e79498" title="Genus Hyalella (Amphipoda: Hyalellidae) in Humid Pampas: molecular diversity and a provisional new species." url="https://doi.org/10.3897/asp.80.e79498" volume="80" year="2022">Waller et al. 2022</bibRefCitation>
|
||
). Despite similarities in telson shape and the morphology and setal cover of maxillae and maxillipeds (Figs
|
||
<figureCitation id="294325964043678EA8E19EE2596CF40B" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Hyalella mboitui sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible, with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure2" httpUri="https://binary.pensoft.net/fig/983116" pageId="0" pageNumber="105">2H-J</figureCitation>
|
||
,
|
||
<figureCitation id="0274EAA400DD521F9D72A801E46CB841" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8H-J</figureCitation>
|
||
;
|
||
<bibRefCitation id="9BE127EAC722BBFBA8D77470A1442A80" author="Shoemaker, CR" journalOrPublisher="Journal of the Washington Academy of Sciences" pageId="0" pageNumber="105" pagination="80 - 82" refId="B26" refString="Shoemaker, CR, 1942. A new species of Amphipoda from Uruguay and Brazil. Journal of the Washington Academy of Sciences 32 (3): 80 - 82" title="A new species of Amphipoda from Uruguay and Brazil." volume="32" year="1942">Shoemaker 1942</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="02C01C4FCF89133FE97A8E4D4039327D" author="Grosso, LE" journalOrPublisher="Acta Zoologica Lilloana" pageId="0" pageNumber="105" pagination="79 - 98" refId="B12" refString="Grosso, LE, Peralta, M, 1999. Anfipodos de agua dulce sudamericanos. Revision del genero Hyalella Smith. Acta Zoologica Lilloana 45 (1): 79 - 98" title="Anfipodos de agua dulce sudamericanos. Revision del genero Hyalella Smith." volume="45" year="1999">Grosso and Peralta 1999</bibRefCitation>
|
||
),
|
||
<taxonomicName id="966413C47C8B6986F4B4BAA7CFDCEEBB" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="85298B99B5BA31B787B99B3415F564E0" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="7102BF8C71EDC29252D8868EBA87ED5D" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="4E4F9698D4D4B0FFD85B65EF23969E20" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
are distinguished from
|
||
<taxonomicName id="F61E3FDF99290BBC2E21EF72A96F2182" lsidName="H. curvispina" pageId="0" pageNumber="105" rank="species" species="curvispina">
|
||
<emphasis id="34AF54AAE0FEF95D858D814B133C0EE7" italics="true" pageId="0" pageNumber="105">H. curvispina</emphasis>
|
||
</taxonomicName>
|
||
by their diagnostic mandibular dentition, the absence of a plumose seta on the dactyli of male gnathopods, the number of setae on the telson, and the shape and number of setae of the uropod 3 peduncle, which is wider than long in
|
||
<taxonomicName id="D2746B8D59AC2BE61CB088A1F0B72331" lsidName="H. curvispina" pageId="0" pageNumber="105" rank="species" species="curvispina">
|
||
<emphasis id="4CF969C6FCBDB93D7AB6DD9E6E7ED668" italics="true" pageId="0" pageNumber="105">H. curvispina</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation id="A0D1C7D8E8C3C02AB63BB90E15D9CB32" author="Shoemaker, CR" journalOrPublisher="Journal of the Washington Academy of Sciences" pageId="0" pageNumber="105" pagination="80 - 82" refId="B26" refString="Shoemaker, CR, 1942. A new species of Amphipoda from Uruguay and Brazil. Journal of the Washington Academy of Sciences 32 (3): 80 - 82" title="A new species of Amphipoda from Uruguay and Brazil." volume="32" year="1942">Shoemaker 1942</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="92307FA9997B3443112CF1F266159BAB" author="Grosso, LE" journalOrPublisher="Acta Zoologica Lilloana" pageId="0" pageNumber="105" pagination="79 - 98" refId="B12" refString="Grosso, LE, Peralta, M, 1999. Anfipodos de agua dulce sudamericanos. Revision del genero Hyalella Smith. Acta Zoologica Lilloana 45 (1): 79 - 98" title="Anfipodos de agua dulce sudamericanos. Revision del genero Hyalella Smith." volume="45" year="1999">Grosso and Peralta 1999</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="4CBAA1E4582B046E447DDEADCD0DFB95" author="Damborenea, C" journalOrPublisher="Neotropica" pageId="0" pageNumber="105" refId="B6" refString="Damborenea, C, Rogers, DC, Thorp, JH [Eds], 2020. Thorp and Covich's Freshwater Invertebrates (Vol. 5): Keys to Neotropical and Antarctic Fauna. Academic Press, London." title="Thorp and Covich's Freshwater Invertebrates (Vol. 5): Keys to Neotropical and Antarctic Fauna. Academic Press, London." year="2020">Damborenea et al. 2020</bibRefCitation>
|
||
) but not in
|
||
<taxonomicName id="08167BDDB3FE227834E8E4529FD5EF7C" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="21A460A83B698FB3DC4922BCDD1051E8" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="CB221000DCAC79EF364BEC6A3943D273" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="9A8F5296A0794D082F1A5B1EFB170481" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
(Figs
|
||
<figureCitation id="92807BB2E6299B33626729E64FB80B19" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Hyalella mboitui sp. nov. Paratype, male. A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-D); 0.2 mm (E, F)." figureDoi="10.3897/zookeys.1191.113840.figure5" httpUri="https://binary.pensoft.net/fig/983119" pageId="0" pageNumber="105">5D</figureCitation>
|
||
,
|
||
<figureCitation id="8E0C02AC626CC3745A1BA95686685E7B" captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Hyalella julia sp. nov. Paratype, male A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-C); 0.2 mm (D-F)." figureDoi="10.3897/zookeys.1191.113840.figure11" httpUri="https://binary.pensoft.net/fig/983125" pageId="0" pageNumber="105">11C</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BACD7D99983698E2D7635CD8AECC20B" pageId="0" pageNumber="105">
|
||
Despite the geographical vicinity of their type locations,
|
||
<taxonomicName id="73D789DA6EAAE04B38050633DAE65D65" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="D37DEAA0B35754E499DF32562F546D04" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="1910FF250A1158302086ABF21185CAA3" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="087ABD548D410EDB0B39BF1EE4A34F59" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
are separated by clear morphological differences at the level of the gnathopods, uropods and mandibles, as well as by minor differences in the morphology and setal covers of their antennae, maxillae and maxillipeds. Antennae 1 and 2 have fewer articles in their flagellum in
|
||
<taxonomicName id="54BDE6BFD333C5FF0156045D756117A0" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="68FEA7EC6A15A994E95D426AFF5528BF" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
than in
|
||
<taxonomicName id="A28FFEC3DD6D2276B3E1D36F0E21E9C2" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="7FCC57E5E703402673DD1FEB94A75826" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
:
|
||
<taxonomicName id="8156D7133380C761BDB4AA644335FF15" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="456D32D4E252F521D40C127B9B0804EB" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
has minimally 13 articles in antenna 1 and 16 in antenna 2, whereas
|
||
<taxonomicName id="F5FF6535A75B9800C19F9F2D96CB3351" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="8CF1F105AAEB5FB753E0965440D5F49A" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
has minimally 10 in antenna 1 and 13 in antenna 2. The mandibles of the two taxa differ in the number of incisor teeth, with 5 and 6 teeth present in the left mandibles of
|
||
<taxonomicName id="B79E8D2BF2F0A67629D548EEC1C2D1E7" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="F9B48D1060EFD5ECADD2F84D84000DBF" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="84681F4FAA08D6318B108177B097B509" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="FE1D0876074613BBF5C28A128ACD07AF" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
, respectively, and 4 and 7 in their right mandibles. In addition, the left lacinia mobilis of
|
||
<taxonomicName id="1FBACB297D10FB5240B46BBDE15EB1B7" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="635F8539C633BF3F9AD77B5B3D7BC74E" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
lacks the distinctive median serrated surface of
|
||
<taxonomicName id="7918874D4CF1F71AC1EE3F56A2ADD0C4" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="DA413479DEE649E20264D82FA0FDE8DB" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
, and sports instead two prominent, elongated denticles with a serrated edge laterally. The maxillipeds of the two species differ in the number of cuspidate setae on the outer plate and in the shape of palp articles (Figs
|
||
<figureCitation id="14D79A0AD00EAE823BC72C1372A7F6BD" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Hyalella mboitui sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible, with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure2" httpUri="https://binary.pensoft.net/fig/983116" pageId="0" pageNumber="105">2J</figureCitation>
|
||
,
|
||
<figureCitation id="7C32EE358FDD51512FDA58F0B393D4E5" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Hyalella julia sp. nov., Department of Neembucu, Paraguay. Paratype, male A habitus B antenna 1 C antenna 2 D upper lip E left mandible with detail of lacinia and incisor rotated anticlockwise (E 1) and clockwise (E 2) F right mandible, with detail of lacinia and incisor rotated anticlockwise (F 1) and clockwise (F 2) G lower lip H maxilla 1 I maxilla 2 J maxilliped. Scale bars: 1 mm (A); 0.5 mm (B, C); 0.2 mm (D-J); 0.1 mm (E 1, E 2, F 1, F 2)." figureDoi="10.3897/zookeys.1191.113840.figure8" httpUri="https://binary.pensoft.net/fig/983122" pageId="0" pageNumber="105">8J</figureCitation>
|
||
). The male gnathopods of
|
||
<taxonomicName id="DD60C276E11F925314C71189BB62EDB4" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="22D936A25C52C985DF6EAB57B9EA1E3E" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="7A5AC342F8900BE3A3F7634C2A7E974E" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="4A6CCD21823822543D17AF9B2BA17D14" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
differ in the number and type of setae: notably, papposerrate setae are absent in the disto-posterior corner of the gnathopod 2 propodues in
|
||
<taxonomicName id="F303959B69BDAA25D09B3D5769491DE2" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="8173FD8277F4A555FC87C32B7B486C3D" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
, which shows instead two stout cuspidate setae with accessory setae (Fig.
|
||
<figureCitation id="9E696BA6E9DD15C0BCCB52736317DFC6" captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. Hyalella julia sp. nov. Paratype, male A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure9" httpUri="https://binary.pensoft.net/fig/983123" pageId="0" pageNumber="105">9B</figureCitation>
|
||
, cf. Fig.
|
||
<figureCitation id="0E9D0CFEC3C3C7946FC59324F7754CF4" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Hyalella mboitui sp. nov. Paratype, male A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure3" httpUri="https://binary.pensoft.net/fig/983117" pageId="0" pageNumber="105">3B</figureCitation>
|
||
). Papposerrate setae are also present on gnathopod 1 in
|
||
<taxonomicName id="01DA62CD61255E27C34B0A5431750E1C" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="52A898B56B1346B7541D508169D988CD" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
, but not
|
||
<taxonomicName id="AD3A8E6FA8F0C304E7DE7A20DCA4EA90" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="7657E85988EF31044AA4EB77406100A3" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation id="B66A6DEBA0A67C6C09A4231F22144E71" captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. Hyalella julia sp. nov. Paratype, male A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure9" httpUri="https://binary.pensoft.net/fig/983123" pageId="0" pageNumber="105">9A</figureCitation>
|
||
, cf. Fig.
|
||
<figureCitation id="E65B5B19540E7370D59AF7D6467AB3E3" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Hyalella mboitui sp. nov. Paratype, male A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure3" httpUri="https://binary.pensoft.net/fig/983117" pageId="0" pageNumber="105">3A</figureCitation>
|
||
). In addition,
|
||
<taxonomicName id="8F675F65C57386C9D15E4F86EDCC675C" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="D36774D61FFC4FC4DFBF3EC90E9E8F96" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
lacks papposerrate setae on the disto-anterior margin of the gnathopod 1 propodus (Fig.
|
||
<figureCitation id="93F3711B0BC0D278EA70E232E0EFB105" captionStart="Figure 9" captionStartId="F9" captionText="Figure 9. Hyalella julia sp. nov. Paratype, male A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure9" httpUri="https://binary.pensoft.net/fig/983123" pageId="0" pageNumber="105">9A</figureCitation>
|
||
, cf. Fig.
|
||
<figureCitation id="038C911C5E1318DD1FC6BF2F1A03AB1E" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Hyalella mboitui sp. nov. Paratype, male A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure3" httpUri="https://binary.pensoft.net/fig/983117" pageId="0" pageNumber="105">3A</figureCitation>
|
||
). The propodi of female gnathopods are also more elongated and less subtriangular in
|
||
<taxonomicName id="565C5C758CFD414244B4C0DFFD4ADF02" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="A14BBCFF0824FC1D07D74FB54EE9A27C" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
, and differ in the presence and extent of their cover of comb-scales (Fig.
|
||
<figureCitation id="F21790FD09E0FB47F018A9C47394FCE9" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Hyalella mboitui sp. nov. Paratype, female. A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure6" httpUri="https://binary.pensoft.net/fig/983120" pageId="0" pageNumber="105">6</figureCitation>
|
||
, cf. Fig.
|
||
<figureCitation id="990D4A4284A0B0D93EC0C3E158DFC042" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Hyalella julia sp. nov. Paratype, female A gnathopod 1 B gnathopod 2. Scale bars: 0.5 mm." figureDoi="10.3897/zookeys.1191.113840.figure12" httpUri="https://binary.pensoft.net/fig/983126" pageId="0" pageNumber="105">12</figureCitation>
|
||
). Pereopod 5 is the shortest pereopod in
|
||
<taxonomicName id="B5521874B42B4423CE84DDCF1B6E16F0" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="46D8A4EE77B8FD39756E43AE830636DA" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
, but the longest in
|
||
<taxonomicName id="793F2D855815A73C807000738AC84576" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="1E503F324FCC6B96503E5E8C1B54AD36" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
. Moreover, uropods 1, 2 and 3 in the two species differ in the number of cuspidate setae on their rami and peduncle (Figs
|
||
<figureCitation id="F50ED546025A059536A6203471F6374F" captionStart="Figure 5" captionStartId="F5" captionText="Figure 5. Hyalella mboitui sp. nov. Paratype, male. A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-D); 0.2 mm (E, F)." figureDoi="10.3897/zookeys.1191.113840.figure5" httpUri="https://binary.pensoft.net/fig/983119" pageId="0" pageNumber="105">5B, C</figureCitation>
|
||
,
|
||
<figureCitation id="179A40AB1FAA37EB44E8B70843E4252E" captionStart="Figure 11" captionStartId="F11" captionText="Figure 11. Hyalella julia sp. nov. Paratype, male A pleopod B uropod 1 C uropod 2 D uropod 3 E male telson F paratype, female telson. Scale bars: 0.5 mm (A-C); 0.2 mm (D-F)." figureDoi="10.3897/zookeys.1191.113840.figure11" httpUri="https://binary.pensoft.net/fig/983125" pageId="0" pageNumber="105">11B, C</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="4CC70CEBE7EB1E7E401F731F15EE83C7" pageId="0" pageNumber="105" type="habitat and conservation">
|
||
<paragraph id="3DE4CD48F099F3A34D42562B7C3B4501" pageId="0" pageNumber="105">Habitat and conservation</paragraph>
|
||
<paragraph id="2C49EBD6E62C3702B5866A63ACACA5C2" pageId="0" pageNumber="105">
|
||
The geographical vicinity of the two new species and their distinct mandibular morphologies suggest that their differences may stem at least in part from trophic partitioning (
|
||
<bibRefCitation id="561EA87219CC1F8681DADE483BD51256" DOI="https://doi.org/10.11646/zootaxa.5026.2.2" author="Limberger, M" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="182 - 200" refId="B16" refString="Limberger, M, Castiglioni, DDS, Graichen, DAS, 2021. A new species of freshwater amphipod (Crustacea, Peracarida, Hyalellidae) from Southern Brazil. Zootaxa 5026 (2): 182 - 200, DOI: https://doi.org/10.11646/zootaxa.5026.2.2" title="A new species of freshwater amphipod (Crustacea, Peracarida, Hyalellidae) from Southern Brazil." url="https://doi.org/10.11646/zootaxa.5026.2.2" volume="5026" year="2021">Limberger et al. 2021</bibRefCitation>
|
||
). Distinct feeding habits may be tied to the different environments characterising the type localities of the two species (Fig.
|
||
<figureCitation id="C94FC9C794C501FFFA185AB7958048B6" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Localities of occurrence for Hyalella mboitui sp. nov. and Hyalella julia sp. nov. in Pilar, southwestern Paraguay A map showing the position of the type localities B-D with scale: 900 m B Yegros Paso C Ring Road D San Lorenzo." figureDoi="10.3897/zookeys.1191.113840.figure13" httpUri="https://binary.pensoft.net/fig/983127" pageId="0" pageNumber="105">13</figureCitation>
|
||
). Yegros Paso, the type locality of
|
||
<taxonomicName id="1B24C240F11F92B6C71A274BB15E3759" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="B05F4E0A186C849FCDDDE0632E71A975" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
(Fig.
|
||
<figureCitation id="4DEFFDC8FD35E2FE930A80A97156E798" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Localities of occurrence for Hyalella mboitui sp. nov. and Hyalella julia sp. nov. in Pilar, southwestern Paraguay A map showing the position of the type localities B-D with scale: 900 m B Yegros Paso C Ring Road D San Lorenzo." figureDoi="10.3897/zookeys.1191.113840.figure13" httpUri="https://binary.pensoft.net/fig/983127" pageId="0" pageNumber="105">13B</figureCitation>
|
||
), falls within a complex of seasonal ponds with relatively stagnant waters bordering on a stream. Locally, water bodies expand and contract in cyclic dry and wet phases depending on rainfall levels (
|
||
<bibRefCitation id="9AF356B5D3328544A154354AA04B8C55" DOI="https://doi.org/10.1515/mammalia-2023-0041" author="Hordijk, KAC" journalOrPublisher="Mammalia" pageId="0" pageNumber="105" pagination="464 - 468" refId="B13" refString="Hordijk, KAC, Pottie, SB, Ayala, J, 2023. A preliminary examination of burrow use of the understudied Ctenomys pilarensis in Neembucu, Paraguay. Mammalia 87 (5): 464 - 468, DOI: https://doi.org/10.1515/mammalia-2023-0041" title="A preliminary examination of burrow use of the understudied Ctenomys pilarensis in Neembucu, Paraguay." url="https://doi.org/10.1515/mammalia-2023-0041" volume="87" year="2023">Hordijk et al. 2023</bibRefCitation>
|
||
). In contrast, the bodies of water in the type localities of
|
||
<taxonomicName id="B2E4F8BDF2C4A023250EC9EEA31CAB3A" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="CAC39D3DDBCCF6BD8F760B2C4EFEBB63" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
(Ring Road and San Lorenzo; Fig.
|
||
<figureCitation id="2D1B6192CEF0ADAC2179A3B3732A69D3" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Localities of occurrence for Hyalella mboitui sp. nov. and Hyalella julia sp. nov. in Pilar, southwestern Paraguay A map showing the position of the type localities B-D with scale: 900 m B Yegros Paso C Ring Road D San Lorenzo." figureDoi="10.3897/zookeys.1191.113840.figure13" httpUri="https://binary.pensoft.net/fig/983127" pageId="0" pageNumber="105">13C, D</figureCitation>
|
||
) are characterised by somewhat stronger riverine influence, with more active flow regimes, and higher availability of macrophytes near the banks. Some distinctions in the morphology of their pleopod setae may suggest corresponding differences in locomotion.
|
||
<taxonomicName id="3B008FEE68349AFC36C801A57EB10177" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella julia" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="julia">
|
||
<emphasis id="0709C88FFD9797D546404B8289C4F622" italics="true" pageId="0" pageNumber="105">Hyalella julia</emphasis>
|
||
</taxonomicName>
|
||
has denser, more strongly developed plumose setae on the pleopods that suggest a higher natatory capacity than in
|
||
<taxonomicName id="969966D9338EC177A4709AC7AFD70EC5" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="90A3919154B01FF4673A552AA5F2BE19" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
, and may make
|
||
<taxonomicName id="F0788E7822C798DF5C1F4AC5C1EDEBF8" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="E222D446EB2887BE882CB5689FD3C916" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
better adapted to swimming in lentic habitats (
|
||
<bibRefCitation id="26AC7E51066FCB033B154D8DA42B4232" DOI="https://doi.org/10.11646/zootaxa.4337.2.5" author="Streck, MT" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="263 - 278" refId="B27" refString="Streck, MT, Cardoso, GM, Rodrigues, SG, Graichen, DAS, Castiglioni, DS, 2017. Two new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil. Zootaxa 4337 (2): 263 - 278, DOI: https://doi.org/10.11646/zootaxa.4337.2.5" title="Two new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil." url="https://doi.org/10.11646/zootaxa.4337.2.5" volume="4337" year="2017">Streck et al. 2017</bibRefCitation>
|
||
). In contrast,
|
||
<taxonomicName id="D1D78B63D2F03246F14345FA579A5FC6" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="CEEF0F05E680CBD03ABA63C5F4792CD0" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
may predominantly inhabit substrates in its lotic environment or remain near the river bank macrophytes.
|
||
</paragraph>
|
||
<caption id="E9DEDC027659B1862D0A53634CE2CABC" doi="10.3897/zookeys.1191.113840.figure13" httpUri="https://binary.pensoft.net/fig/983127" pageId="0" pageNumber="105" start="Figure 13" startId="F13">
|
||
<paragraph id="96A1CFAA170D31B5A3BD408E085EC1B4" pageId="0" pageNumber="105">
|
||
<emphasis id="ADD9114149298796E57A63A45B7386C9" bold="true" pageId="0" pageNumber="105">Figure 13.</emphasis>
|
||
Localities of occurrence for
|
||
<taxonomicName id="B7848C54BE4529343C597E0454D14EBF" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella mboitui" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="mboitui">
|
||
<emphasis id="0C9D234C01319C240038594AF57AB296" italics="true" pageId="0" pageNumber="105">Hyalella mboitui</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. and
|
||
<taxonomicName id="82E7C09432576F97DF9A79A13D4CCFC5" authorityName="Mussini & Stepan & Vargas" authorityYear="2024" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella julia" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="species" species="julia">
|
||
<emphasis id="E8BBE8A3B951E5017380E7A9A539EBDD" italics="true" pageId="0" pageNumber="105">Hyalella julia</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. in Pilar, southwestern Paraguay
|
||
<emphasis id="F5D4A2540DAC54AF87A1AAEE49616DD1" bold="true" pageId="0" pageNumber="105">A</emphasis>
|
||
map showing the position of the type localities
|
||
<emphasis id="2A6F0772C19BF5384B8594ED887B0962" bold="true" pageId="0" pageNumber="105">B-D</emphasis>
|
||
with scale: 900 m
|
||
<emphasis id="D1B0B2D813526681E4C7430ED7A95778" bold="true" pageId="0" pageNumber="105">B</emphasis>
|
||
Yegros Paso
|
||
<emphasis id="28AFC8F70E46E77B0853F3A825849860" bold="true" pageId="0" pageNumber="105">C</emphasis>
|
||
Ring Road
|
||
<emphasis id="9D0315BCC3E52A5AF1F332EA85215314" bold="true" pageId="0" pageNumber="105">D</emphasis>
|
||
San Lorenzo.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="681E704EAF652EE9073ABDFC18334701" pageId="0" pageNumber="105">
|
||
The type locality of
|
||
<taxonomicName id="2935FBCE66107BCF6848D177E0B948B3" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="AA617853F055F4DE6D7DD28C997EE7B3" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
is managed for ongoing conservation and research projects on the endangered Pilar tuco-tuco (
|
||
<taxonomicName id="3677CAD9CB95CE05D401CC8035B86EA3" authorityName="Contreras" authorityYear="1993" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" lsidName="Ctenomys pilarensis" order="Rodentia" pageId="0" pageNumber="105" phylum="Chordata" rank="species" species="pilarensis">
|
||
<emphasis id="1D64CB49C8B6647388807B5B1FBF404D" italics="true" pageId="0" pageNumber="105">Ctenomys pilarensis</emphasis>
|
||
</taxonomicName>
|
||
). In contrast, major developments are scheduled or currently taking place at the type localities of
|
||
<taxonomicName id="766FFA545741E59F014D8316A68BCE60" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="265B378C719C8235264D7C9A6E042F9F" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
, San Lorenzo and Ring Road, for the planned construction of flood defences. The connections between the bodies of water inhabited by
|
||
<taxonomicName id="2E5A8D2A013DDBE72D6C551D4812E26A" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="5571B40C8539D66F1113E90451C8FF3D" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="1339D850BABA4FDEB3B6130CDE766422" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="D9994CF42BE16D70191698AC6A97DD3B" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
, and their seasonal continuity with the
|
||
<normalizedToken id="50AB39784917C8C5E5672AA99B8B0FD9" originalValue="Ñeembucú">Neembucu</normalizedToken>
|
||
River, preliminarily suggest that their area extends beyond the type localities. However,
|
||
<taxonomicName id="03504B1F984C17269D3CB1E01A9AE14C" authorityName="S. I. Smith" authorityYear="1874" class="Malacostraca" family="Hyalellidae" genus="Hyalella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Hyalella" order="Amphipoda" pageId="0" pageNumber="105" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="D3D7E2C6D6173D371A147FBA3346B27A" italics="true" pageId="0" pageNumber="105">Hyalella</emphasis>
|
||
</taxonomicName>
|
||
is known for its high degree of endemism across South America, and the geographic range of different species in the genus is highly variable (
|
||
<bibRefCitation id="57F7FA1B5D85CA15EC1EF368F9F6EE9A" author="Grosso, LE" journalOrPublisher="Acta Zoologica Lilloana" pageId="0" pageNumber="105" pagination="79 - 98" refId="B12" refString="Grosso, LE, Peralta, M, 1999. Anfipodos de agua dulce sudamericanos. Revision del genero Hyalella Smith. Acta Zoologica Lilloana 45 (1): 79 - 98" title="Anfipodos de agua dulce sudamericanos. Revision del genero Hyalella Smith." volume="45" year="1999">Grosso and Peralta 1999</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="737B7E7267A4A81759A0EA1F8C20E5F1" DOI="https://doi.org/10.11646/zootaxa.4337.2.5" author="Streck, MT" journalOrPublisher="Zootaxa" pageId="0" pageNumber="105" pagination="263 - 278" refId="B27" refString="Streck, MT, Cardoso, GM, Rodrigues, SG, Graichen, DAS, Castiglioni, DS, 2017. Two new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil. Zootaxa 4337 (2): 263 - 278, DOI: https://doi.org/10.11646/zootaxa.4337.2.5" title="Two new species of Hyalella (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil." url="https://doi.org/10.11646/zootaxa.4337.2.5" volume="4337" year="2017">Streck et al. 2017</bibRefCitation>
|
||
). To map the ranges of
|
||
<taxonomicName id="57A365F27CC525CDBE2AE4FBC7DFC940" lsidName="H. mboitui" pageId="0" pageNumber="105" rank="species" species="mboitui">
|
||
<emphasis id="A8AD6CAB8D33ABE7A964841A788CDEA0" italics="true" pageId="0" pageNumber="105">H. mboitui</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="186B9ECB96D0FF9D08228E9E0F28B1F7" lsidName="H. julia" pageId="0" pageNumber="105" rank="species" species="julia">
|
||
<emphasis id="84A78E2437B2D7C14F9477B73EF90750" italics="true" pageId="0" pageNumber="105">H. julia</emphasis>
|
||
</taxonomicName>
|
||
, and the degree to which ongoing developments may threaten the species survival, we recommend a wider sampling of freshwater invertebrates in the wetland complex around Pilar and more broadly in the
|
||
<normalizedToken id="DA89257E311FC789F418186084628095" originalValue="Ñeembucú">Neembucu</normalizedToken>
|
||
region.
|
||
</paragraph>
|
||
<paragraph id="E45EB2273E621BAF39CDD92C1FA0E991" pageId="0" pageNumber="105">
|
||
The discovery of two new crustacean species, collected in a non-targeted impact assessment survey near an urban area, highlights the untapped potential of the
|
||
<normalizedToken id="36BF18F48CAB9125F5AEEE4005A205E0" originalValue="Ñeembucú">Neembucu</normalizedToken>
|
||
wetlands for biodiversity and conservation research. This ecologically important patchwork of rivers, streams, and flooded grasslands is severely understudied, and its invertebrate fauna remains virtually unexplored amid escalating anthropic impacts (
|
||
<bibRefCitation id="E025EEA5E1B92B00A9AD5567A7B16598" DOI="https://doi.org/10.1080/13887890.2020.1768157" author="Dickens, JK" journalOrPublisher="International Journal of Odonatology" pageId="0" pageNumber="105" pagination="239 - 289" refId="B7" refString="Dickens, JK, Schoenberger, D, VanCompernolle, M, 2020. Guide to the Odonata of central Neembucu, Paraguay: Indicator species of wetland habitats. International Journal of Odonatology 23 (3): 239 - 289, DOI: https://doi.org/10.1080/13887890.2020.1768157" title="Guide to the Odonata of central Neembucu, Paraguay: Indicator species of wetland habitats." url="https://doi.org/10.1080/13887890.2020.1768157" volume="23" year="2020">Dickens et al. 2020</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="1640FBE76D9F68A5B66ECFDC5DB89192" DOI="https://doi.org/10.30564/re.v2i1.1324" author="Mereles, MF" journalOrPublisher="Restoration Ecology" pageId="0" pageNumber="105" pagination="20 - 26" refId="B19" refString="Mereles, MF, Cespedes, G, Cartes, JL, Goerzen, R, De Egea-Elsam, J, Rodriguez, L, Yanosky, A, Villalba, L, Weiler, A, Cacciali, P, 2020. Biological corridors as a connectivity tool in the region of the Great American Chaco: Identification of biodiversity hotspots in the ecoregions of the Paraguayan Chaco. Restoration Ecology 2 (1): 20 - 26, DOI: https://doi.org/10.30564/re.v2i1.1324" title="Biological corridors as a connectivity tool in the region of the Great American Chaco: Identification of biodiversity hotspots in the ecoregions of the Paraguayan Chaco." url="https://doi.org/10.30564/re.v2i1.1324" volume="2" year="2020">Mereles et al. 2020</bibRefCitation>
|
||
). More broadly, despite still comprising unfragmented areas of natural habitat, the Humid Chaco ecoregion in Paraguay is under increasing pressure from land use changes, resulting in high and rapid ongoing biodiversity losses (
|
||
<bibRefCitation id="2FFE5E96138C9FA1F5374C0F1EBB0FBC" DOI="https://doi.org/10.30564/re.v2i1.1324" author="Mereles, MF" journalOrPublisher="Restoration Ecology" pageId="0" pageNumber="105" pagination="20 - 26" refId="B19" refString="Mereles, MF, Cespedes, G, Cartes, JL, Goerzen, R, De Egea-Elsam, J, Rodriguez, L, Yanosky, A, Villalba, L, Weiler, A, Cacciali, P, 2020. Biological corridors as a connectivity tool in the region of the Great American Chaco: Identification of biodiversity hotspots in the ecoregions of the Paraguayan Chaco. Restoration Ecology 2 (1): 20 - 26, DOI: https://doi.org/10.30564/re.v2i1.1324" title="Biological corridors as a connectivity tool in the region of the Great American Chaco: Identification of biodiversity hotspots in the ecoregions of the Paraguayan Chaco." url="https://doi.org/10.30564/re.v2i1.1324" volume="2" year="2020">Mereles et al. 2020</bibRefCitation>
|
||
). Therefore, taxonomic studies are urgently needed to address the large remaining gaps in the scientific understanding of the
|
||
<normalizedToken id="725AC1395BA705184DE402FE2A2AD3BF" originalValue="region’s">region's</normalizedToken>
|
||
biodiversity. Our findings of two undescribed species provide supporting evidence of the potential presence of a significant number of undocumented taxa in the
|
||
<normalizedToken id="93901D0F60C8ECBDEDE1BCAB091D8970" originalValue="Ñeembucú">Neembucu</normalizedToken>
|
||
wetlands, which are likely to benefit from habitat protection measures.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</subSection>
|
||
</document> |