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<document id="5269CB1461B5D9B7D6EFF3E65A0750D9" ID-CLB-Dataset="266147" ID-DOI="10.1093/zoolinnean/zlad032" ID-GBIF-Dataset="684543f4-855c-492a-b163-a157473a187c" ID-ISSN="0024-4082" ID-Zenodo-Dep="8326346" ID-ZooBank="E1210342-9DBD-4D89-ABF5-1925792D0E14C" IM.bibliography_approvedBy="juliana" IM.illustrations_approvedBy="juliana" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="juliana" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="juliana" checkinTime="1693804639940" checkinUser="plazi" docAuthor="Alonso, Felipe, Terán, Guillermo Enrique, Alanís, Wilson Sebastián Serra, Calviño, Pablo, Montes, Martin Miguel, García, Ignacio Daniel, Barneche, Jorge Adrián, Almirón, Adriana, Ciotek, Liliana, Giorgis, Pablo &amp; Cascioưa, Jorge" docDate="2023" docId="03CA879AFFADFFFDFF34F882FBC1FB1F" docLanguage="en" docName="zlad032.pdf" docOrigin="Zoological Journal of the Linnean Society 199 (1)" docSource="http://dx.doi.org/10.1093/zoolinnean/zlad032" docStyle="DocumentStyle:4F230B9370E98E256D973D6DFB57F36C.1:ZoolJLinnSoc.2023-.journal_article" docStyleId="4F230B9370E98E256D973D6DFB57F36C" docStyleIdOld="36B3BD6A90C22AB4F7F465C853188CC8" docStyleName="ZoolJLinnSoc.2023-.journal_article" docStyleNameOld="ZoolJLinnSoc.2017-.journal_article" docStyleOld="DocumentStyle:36B3BD6A90C22AB4F7F465C853188CC8.7:ZoolJLinnSoc.2017-.journal_article" docStyleVersion="1" docStyleVersionOld="7" docTitle="Gymnolebias Costa 2008" docType="treatment" docVersion="4" lastPageNumber="289" masterDocId="FFF3FFE2FFA4FFF4FFC4FF8BFFACFFE4" masterDocTitle="From the mud to the tree: phylogeny of Austrolebias killifishes, new generic structure and description of a new species (Cyprinodontiformes: Rivulidae)" masterLastPageNumber="309" masterPageNumber="280" pageNumber="289" updateTime="1699625782891" updateUser="plazi">
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<mods:title id="7D00651672576A7331CD050874B96EC7">From the mud to the tree: phylogeny of Austrolebias killifishes, new generic structure and description of a new species (Cyprinodontiformes: Rivulidae)</mods:title>
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<mods:namePart id="ADCD5D4568EAC6AF31620389DB7D37FC">Terán, Guillermo Enrique</mods:namePart>
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<mods:namePart id="F70A006DAFB5A782314F0CC4ECAF1AE5">Cascioưa, Jorge</mods:namePart>
<mods:affiliation id="CC0BEADF5D9BB9A8AAED6BFFE4D0BF6A">Universidad Nacional de La Plata, Facultad de Ciencias Naturales y Museo, División Zoología Vertebrados, La Plata, Buenos Aires Province, Argentina</mods:affiliation>
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<mods:date id="ABAF8A8EFCA0192F57BBF0DF1A878397">2023</mods:date>
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<treatment id="03CA879AFFADFFFDFF34F882FBC1FB1F" ID-DOI="http://doi.org/10.5281/zenodo.8328869" ID-GBIF-Taxon="212969872" ID-Zenodo-Dep="8328869" LSID="urn:lsid:plazi:treatment:03CA879AFFADFFFDFF34F882FBC1FB1F" httpUri="http://treatment.plazi.org/id/03CA879AFFADFFFDFF34F882FBC1FB1F" lastPageNumber="289" pageId="9" pageNumber="289">
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<paragraph id="8BDC368CFFADFFFDFF34F882FD35F8C0" blockId="9.[129,681,1801,1864]" box="[240,665,1801,1828]" pageId="9" pageNumber="289">
<emphasis id="B917EA9EFFADFFFDFF34F882FD35F8C0" bold="true" box="[240,665,1801,1828]" pageId="9" pageNumber="289">
<taxonomicName id="4C634D0FFFADFFFDFF34F882FE54F8C7" authority="Costa, 2008" authorityName="Costa" authorityYear="2008" box="[240,504,1801,1828]" family="Rivulidae" genus="Gymnolebias" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFF34F882FED8F8C0" bold="true" box="[240,372,1801,1828]" italics="true" pageId="9" pageNumber="289">Gymnolebias</emphasis>
Costa, 2008
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genus stat. nov.
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<taxonomicName id="4C634D0FFFADFFFDFF45F8BBFED3F8AC" authority="Costa, 2008" authorityName="Costa" authorityYear="2008" box="[129,383,1840,1864]" family="Rivulidae" genus="Gymnolebias" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFF45F8BBFF53F8AC" box="[129,255,1840,1864]" italics="true" pageId="9" pageNumber="289">Gymnolebias</emphasis>
Costa, 2008
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as a subgenus of
<emphasis id="B917EA9EFFADFFFDFDE8F8BBFD05F8AC" box="[556,681,1840,1864]" italics="true" pageId="9" pageNumber="289">
<taxonomicName id="4C634D0FFFADFFFDFDE8F8BBFD09F8AC" ID-CoL="36CL" authorityName="Costa" authorityYear="1998" box="[556,677,1840,1864]" family="Rivulidae" genus="Austrolebias" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">Austrolebias</taxonomicName>
.
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<subSubSection id="C3796507FFADFFFDFF45F8E1FD2CF865" box="[129,640,1897,1922]" pageId="9" pageNumber="289" type="type_taxon">
<paragraph id="8BDC368CFFADFFFDFF45F8E1FD2CF865" blockId="9.[129,640,1897,1922]" box="[129,640,1897,1922]" pageId="9" pageNumber="289">
<emphasis id="B917EA9EFFADFFFDFF45F8E1FF50F865" box="[129,252,1898,1921]" italics="true" pageId="9" pageNumber="289">Type species:</emphasis>
<taxonomicName id="4C634D0FFFADFFFDFEC5F8E2FDD0F865" ID-CoL="6C7TX" authority="Amato, 1986" authorityName="Amato" authorityYear="1986" box="[257,636,1897,1922]" family="Rivulidae" genus="Cynolebias" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="species" species="gymnoventris">
<emphasis id="B917EA9EFFADFFFDFEC5F8E2FE5EF865" box="[257,498,1897,1921]" italics="true" pageId="9" pageNumber="289">Cynolebias gymnoventris</emphasis>
Amato, 1986
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.
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Diagnosis:
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can be distinguished from other
<taxonomicName id="4C634D0FFFADFFFDFF45F849FF54F83E" authorityName="Costa" authorityYear="1998" box="[129,248,1986,2010]" family="Rivulidae" genus="Austrolebias" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFF45F849FF54F83E" box="[129,248,1986,2010]" italics="true" pageId="9" pageNumber="289">Austrolebias</emphasis>
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genus group genera by the following unique combination of characters: (1) scales absent on ventral region; (2) absence of conspicuous suborbital and supraorbital dark grey marks in living specimens; and (3) flanks dark brownish grey to black, with wide dark grey bars on anterior portion (modified from Costa 2008).
</paragraph>
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<emphasis id="B917EA9EFFADFFFDFCFDFECCFBA2FEBB" box="[825,1038,327,351]" italics="true" pageId="9" pageNumber="289">Differential diagnosis:</emphasis>
In addition to the unique combination of character states mentioned in the
<emphasis id="B917EA9EFFADFFFDFB63FEECFAAAFE9A" box="[1191,1286,359,382]" italics="true" pageId="9" pageNumber="289">Diagnosis</emphasis>
above, the genus
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<emphasis id="B917EA9EFFADFFFDFCFDFE0EFC1BFE79" box="[825,951,389,413]" italics="true" pageId="9" pageNumber="289">Gymnolebias</emphasis>
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can be distinguished from all other genera of the
<taxonomicName id="4C634D0FFFADFFFDFCFDFE2EFC1CFE59" authorityName="Costa" authorityYear="1998" box="[825,944,421,445]" family="Rivulidae" genus="Austrolebias" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFCFDFE2EFC1CFE59" box="[825,944,421,445]" italics="true" pageId="9" pageNumber="289">Austrolebias</emphasis>
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genus group by having &lt;40 scales in the longitudinal series (vs.&gt; 40 scales in
<taxonomicName id="4C634D0FFFADFFFDFBEEFE4FFB0EFE38" authorityName="Alonso &amp; Terán &amp; Alanís &amp; Calviño &amp; Montes &amp; García &amp; Barneche &amp; Almirón &amp; Ciotek &amp; Giorgis &amp; Cascioưa" authorityYear="2023" box="[1066,1186,452,476]" family="Rivulidae" genus="Titanolebias" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFBEEFE4FFB0EFE38" box="[1066,1186,452,476]" italics="true" pageId="9" pageNumber="289">Titanolebias</emphasis>
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); by the lack of ossified contact organs in the anal fin of males (vs. present in
<taxonomicName id="4C634D0FFFADFFFDFAECFE68FA1CFE1F" authorityName="Costa" authorityYear="2008" box="[1320,1456,483,507]" family="Rivulidae" genus="Acantholebias" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFAECFE68FA1CFE1F" box="[1320,1456,483,507]" italics="true" pageId="9" pageNumber="289">Acantholebias</emphasis>
</taxonomicName>
); by the basal and medial region of the pectoral fins being hyaline in adult males (vs. non-hyaline in
<taxonomicName id="4C634D0FFFADFFFDFB10FDA9FA94FDDE" authorityName="Costa" authorityYear="2008" box="[1236,1336,546,570]" family="Rivulidae" genus="Acrolebias" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFB10FDA9FA94FDDE" box="[1236,1336,546,570]" italics="true" pageId="9" pageNumber="289">Acrolebias</emphasis>
</taxonomicName>
,
<taxonomicName id="4C634D0FFFADFFFDFA82FDA9FA10FDDE" authorityName="Costa" authorityYear="2008" box="[1350,1468,546,570]" family="Rivulidae" genus="Cypholebias" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFA82FDA9FA10FDDE" box="[1350,1468,546,570]" italics="true" pageId="9" pageNumber="289">Cypholebias</emphasis>
</taxonomicName>
,
<taxonomicName id="4C634D0FFFADFFFDFCFDFDCAFC33FDBD" authorityName="Alonso &amp; Terán &amp; Alanís &amp; Calviño &amp; Montes &amp; García &amp; Barneche &amp; Almirón &amp; Ciotek &amp; Giorgis &amp; Cascioưa" authorityYear="2023" box="[825,927,577,601]" family="Rivulidae" genus="Matilebias" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFCFDFDCAFC33FDBD" box="[825,927,577,601]" italics="true" pageId="9" pageNumber="289">Matilebias</emphasis>
</taxonomicName>
,
<taxonomicName id="4C634D0FFFADFFFDFC6AFDCAFBBFFDBD" authorityName="sensu Costa" authorityYear="2008" box="[942,1043,577,601]" family="Rivulidae" genus="Argolebias" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFC6AFDCAFBBFFDBD" box="[942,1043,577,601]" italics="true" pageId="9" pageNumber="289">Argolebias</emphasis>
</taxonomicName>
and
<taxonomicName id="4C634D0FFFADFFFDFB88FDCAFB14FDBD" authorityName="Costa" authorityYear="1998" box="[1100,1208,577,601]" class="Actinopterygii" family="Rivulidae" genus="Megalebias" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFB88FDCAFB14FDBD" box="[1100,1208,577,601]" italics="true" pageId="9" pageNumber="289">Megalebias</emphasis>
</taxonomicName>
); anal fin rounded in females (vs. nearly triangular in
<taxonomicName id="4C634D0FFFADFFFDFBA2FDEAFB71FD9D" authorityName="Costa" authorityYear="1998" box="[1126,1245,609,633]" family="Rivulidae" genus="Austrolebias" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFBA2FDEAFB71FD9D" box="[1126,1245,609,633]" italics="true" pageId="9" pageNumber="289">Austrolebias</emphasis>
</taxonomicName>
and
<taxonomicName id="4C634D0FFFADFFFDFAC8FDEAFA29FD9D" authorityName="Alonso &amp; Terán &amp; Alanís &amp; Calviño &amp; Montes &amp; García &amp; Barneche &amp; Almirón &amp; Ciotek &amp; Giorgis &amp; Cascioưa" authorityYear="2023" box="[1292,1413,609,633]" family="Rivulidae" genus="Garcialebias" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFAC8FDEAFA29FD9D" box="[1292,1413,609,633]" italics="true" pageId="9" pageNumber="289">Garcialebias</emphasis>
</taxonomicName>
); and male pectoral fins without black margin (vs. black distal margin in
<taxonomicName id="4C634D0FFFADFFFDFC97FD14FC60FD53" authorityName="Alonso &amp; Terán &amp; Alanís &amp; Calviño &amp; Montes &amp; García &amp; Barneche &amp; Almirón &amp; Ciotek &amp; Giorgis &amp; Cascioưa" authorityYear="2023" box="[851,972,671,695]" family="Rivulidae" genus="Amatolebias" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">
<emphasis id="B917EA9EFFADFFFDFC97FD14FC60FD53" box="[851,972,671,695]" italics="true" pageId="9" pageNumber="289">Amatolebias</emphasis>
</taxonomicName>
)
</paragraph>
</subSubSection>
<subSubSection id="C3796507FFADFFFDFCFDFD52FC5CFBAD" pageId="9" pageNumber="289" type="discussion">
<paragraph id="8BDC368CFFADFFFDFCFDFD52FC5CFBAD" blockId="9.[825,1474,729,1097]" pageId="9" pageNumber="289">
<emphasis id="B917EA9EFFADFFFDFCFDFD52FBCBFD15" box="[825,1127,729,753]" italics="true" pageId="9" pageNumber="289">
Synapomorphies:
<taxonomicName id="4C634D0FFFADFFFDFC2DFD52FBCBFD15" authorityName="Costa" authorityYear="2008" box="[1001,1127,729,753]" family="Rivulidae" genus="Gymnolebias" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="genus">Gymnolebias</taxonomicName>
</emphasis>
was recovered as a monophyletic clade supported by 26 molecular characters and the following five morphological characters (see Supporting Information, Appendix S5): wide border of most scales on ventral half of flank, above anal fin, in dominant mature males (not considering bands, bars and iridescent lines) dark grey to black (3:0); centre of most scales in mid-dorsal portion of flank, anterior to dorsal fin, in dominant mature males (not considering bands, bars and iridescent lines) dark grey to black (11:1); dark suborbital bar absent (diffused and inconspicuous) (25:0); scales in the preopercular region absent (78:1); and &lt;14 abdominal vertebrae (169:0)
</paragraph>
</subSubSection>
<subSubSection id="C3796507FFADFFFDFCFDFBE1FA1CFB45" pageId="9" pageNumber="289" type="taxon_list">
<paragraph id="8BDC368CFFADFFFDFCFDFBE1FA1CFB45" blockId="9.[825,1475,1130,1186]" pageId="9" pageNumber="289">
<emphasis id="B917EA9EFFADFFFDFCFDFBE1FC77FB66" box="[825,987,1130,1154]" italics="true" pageId="9" pageNumber="289">Included species:</emphasis>
<taxonomicName id="4C634D0FFFADFFFDFC20FBE1FAD7FB66" authority="Amato, 1986" authorityName="Amato" authorityYear="1986" baseAuthorityName="Amato" baseAuthorityYear="1986" box="[996,1403,1130,1155]" family="Rivulidae" genus="Gymnolebias" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="species" species="gymnoventris" status="comb. nov.">
<emphasis id="B917EA9EFFADFFFDFC20FBE1FB41FB66" box="[996,1261,1130,1154]" italics="true" pageId="9" pageNumber="289">Gymnolebias gymnoventris</emphasis>
Amato, 1986
</taxonomicName>
<taxonomicNameLabel id="A22457E5FFADFFFDFA47FBE1FCC9FB45" pageId="9" pageNumber="289" rank="species">comb. nov.</taxonomicNameLabel>
and
<taxonomicName id="4C634D0FFFADFFFDFC50FB01FA97FB46" authority="Costa &amp; Cheffe, 2002" authorityName="Costa &amp; Cheffe" authorityYear="2002" baseAuthorityName="Costa &amp; Cheffe" baseAuthorityYear="2002" box="[916,1339,1162,1186]" family="Rivulidae" genus="Gymnolebias" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cyprinodontiformes" pageId="9" pageNumber="289" phylum="Chordata" rank="species" species="jaegari" status="comb. nov.">
<emphasis id="B917EA9EFFADFFFDFC50FB01FBF6FB45" box="[916,1114,1162,1186]" italics="true" pageId="9" pageNumber="289">Gymnolebias jaegari</emphasis>
Costa &amp; Cheffe, 2002
</taxonomicName>
<taxonomicNameLabel id="A22457E5FFADFFFDFA84FB01FA1CFB45" box="[1344,1456,1162,1186]" pageId="9" pageNumber="289" rank="species">comb. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection id="C3796507FFADFFFDFCFDFB48FBC1FB1F" pageId="9" pageNumber="289" type="distribution">
<paragraph id="8BDC368CFFADFFFDFCFDFB48FBC1FB1F" blockId="9.[825,1474,1219,1275]" pageId="9" pageNumber="289">
<emphasis id="B917EA9EFFADFFFDFCFDFB48FC1BFB3F" box="[825,951,1219,1243]" italics="true" pageId="9" pageNumber="289">Distribution:</emphasis>
Basins associated with the Patos-Merín lagoon system, in
<collectingCountry id="F374761CFFADFFFDFC60FB69FC73FB1E" box="[932,991,1250,1274]" name="Brazil" pageId="9" pageNumber="289">Brazil</collectingCountry>
and
<collectingCountry id="F374761CFFADFFFDFBCBFB68FBC5FB1F" box="[1039,1129,1251,1275]" name="Uruguay" pageId="9" pageNumber="289">Uruguay</collectingCountry>
.
</paragraph>
</subSubSection>
</treatment>
</document>