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<document id="9A62DBEA6F921E4E7D6DD3F0044A644A" ID-DOI="10.26028/cybium/2019-423-002" ID-ISSN="2101-0315" ID-Zenodo-Dep="10493319" IM.bibliography_approvedBy="julia" IM.illustrations_approvedBy="julia" IM.materialsCitations_approvedBy="julia" IM.metadata_approvedBy="julia" IM.tables_approvedBy="julia" IM.treatments_approvedBy="julia" checkinTime="1705000375890" checkinUser="felipe" docAuthor="Pinna, Mário De &amp; Keith, Philippe" docDate="2019" docId="03B4B01B08220232FE9CFA81FE53FBF7" docLanguage="en" docName="Cybium.43.2.125-135.pdf" docOrigin="Cybium 43 (2)" docSource="http://dx.doi.org/10.26028/cybium/2019-423-002" docStyle="DocumentStyle:EAB95795642928CB986F0923DE58F0B7.1:Cybium.2019-.journal_article" docStyleId="EAB95795642928CB986F0923DE58F0B7" docStyleName="Cybium.2019-.journal_article" docStyleVersion="1" docTitle="Mastiglanis durantoni Pinna &amp; Keith 2019, new species" docType="treatment" docVersion="4" lastPageNumber="132" masterDocId="FF8DC86308200235FF98FFCEFFDDFF96" masterDocTitle="Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters" masterLastPageNumber="135" masterPageNumber="125" pageNumber="127" updateTime="1712071316973" updateUser="julia" zenodo-license-document="CC-BY-4.0">
<mods:mods id="D5AC6397F063781F9C79AF495046F0FE" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:title id="A47825552BD3A1DD2F656B51242F1F7F">Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters</mods:title>
</mods:titleInfo>
<mods:name id="4E701037874E03699B9DE7BBD17AB4D1" type="personal">
<mods:role id="C568BE21767E92BDA23106A387522F5D">
<mods:roleTerm id="C777C154562E1768FAA2C6D10DA0BC3F">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="658A0228BCABDD0595A131E9CCAEACDE">Pinna, Mário De</mods:namePart>
<mods:affiliation id="C0A74E0FAF2D7B9B18D70BEC26AE9E8A">Museu de Zoologia da Universidade de São Paulo, Av. Nazaré 481, São Paulo-SP 04263 - 000, Brazil.</mods:affiliation>
<mods:nameIdentifier id="9B097197482010F05F6469D5EECAD350" type="email">pinna@ib.usp.br</mods:nameIdentifier>
</mods:name>
<mods:name id="2FA99E462CE68E6DD033FA496BF3C6B4" type="personal">
<mods:role id="C9EA733AAAF0DF4F96AF856622E4ED47">
<mods:roleTerm id="468A1DE1B53C934C2D56EB16D819BA4C">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="FE08AE3C44A669F03544B19FD7B57AD8">Keith, Philippe</mods:namePart>
<mods:affiliation id="9826E882CE8E934E48B1082D968C521C">Muséum national d’Histoire naturelle, UMR 7208 (MNHN-CNRS-UPMC-IRD), CP 026, 57 rue Cuvier, 75231 Paris CEDEX 05, France.</mods:affiliation>
<mods:nameIdentifier id="EF38940B9EC1BACA51F5FB9A2CCCA6E1" type="email">philippe.keith@mnhn.fr</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource id="795385DFE2B7F921F39E7DC100029E45">text</mods:typeOfResource>
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<mods:title id="EC8C6D63C1FD4227EB5CE6F16A3C4C66">Cybium</mods:title>
</mods:titleInfo>
<mods:part id="DF429A7E4F64574C1C67E109EDBF3A69">
<mods:date id="1CA6C611FABA98963DCDFB2B9400571B">2019</mods:date>
<mods:detail id="F79959854DDD79F92AC3462FAD7B19F7" type="pubDate">
<mods:number id="D1808899BF5602C730FA9BCB6B9A4658">2019-01-31</mods:number>
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<mods:detail id="01E077F9E9ECBDD9DF8D264119B055E9" type="volume">
<mods:number id="A07CE8FF74B2F1C3334C4B480D1C3D63">43</mods:number>
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<mods:detail id="D8764F625E2C88B46585291E4ECC9A64" type="issue">
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<mods:start id="7A31FD1D629822EFEC797975EA983EBF">125</mods:start>
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<mods:url id="348CDD54BAC1D69A086E0DB8B5AD3388">http://dx.doi.org/10.26028/cybium/2019-423-002</mods:url>
</mods:location>
<mods:classification id="72C0A373FE141AD53AF3119B47898BE7">journal article</mods:classification>
<mods:identifier id="E7D443D546EC6BC34556D840EC33F653" type="DOI">10.26028/cybium/2019-423-002</mods:identifier>
<mods:identifier id="71925B88449BF1E4D38E49BB0D2AC76D" type="ISSN">2101-0315</mods:identifier>
<mods:identifier id="26C7481531FC51224FB58266BD6EEF2D" type="Zenodo-Dep">10493319</mods:identifier>
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<treatment id="03B4B01B08220232FE9CFA81FE53FBF7" ID-DOI="http://doi.org/10.5281/zenodo.10493327" ID-Zenodo-Dep="10493327" LSID="urn:lsid:plazi:treatment:03B4B01B08220232FE9CFA81FE53FBF7" httpUri="http://treatment.plazi.org/id/03B4B01B08220232FE9CFA81FE53FBF7" lastPageId="7" lastPageNumber="132" pageId="2" pageNumber="127">
<subSubSection id="C307528608220237FE9CFA81FD55FAFE" box="[260,648,1359,1384]" pageId="2" pageNumber="127" type="nomenclature">
<paragraph id="8BA2010D08220237FE9CFA81FD55FAFE" blockId="2.[260,648,1359,1384]" box="[260,648,1359,1384]" pageId="2" pageNumber="127">
<heading id="D0EAB66108220237FE9CFA81FD55FAFE" bold="true" box="[260,648,1359,1384]" centered="true" fontSize="9" level="2" pageId="2" pageNumber="127" reason="2">
<emphasis id="B969DD1F08220237FE9CFA81FD55FAFE" bold="true" box="[260,648,1359,1384]" pageId="2" pageNumber="127">
<taxonomicName id="4C1D7A8E08220237FE9CFA81FE24FAF1" authority="Pinna &amp; Keith, 2019" authorityName="Pinna &amp; Keith" authorityYear="2019" box="[260,505,1359,1383]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="2" pageNumber="127" phylum="Chordata" rank="species" species="durantoni" status="sp. nov.">
<emphasis id="B969DD1F08220237FE9CFA81FE24FAF1" bold="true" box="[260,505,1359,1383]" italics="true" pageId="2" pageNumber="127">Mastiglanis durantoni</emphasis>
</taxonomicName>
,
<taxonomicNameLabel id="A25A606408220237FD9DFA9EFD55FAFE" box="[517,648,1360,1384]" pageId="2" pageNumber="127" rank="species">new species</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C307528608220237FE09FABEFE27FA1F" box="[401,506,1392,1417]" pageId="2" pageNumber="127" type="description">
<paragraph id="8BA2010D08220237FE09FABEFE27FA1F" blockId="2.[401,506,1392,1417]" box="[401,506,1392,1417]" pageId="2" pageNumber="127">
(
<figureCitation id="13261D8808220237FE00FABEFE2CFA1F" box="[408,497,1392,1417]" captionStart-0="Figure 1" captionStart-1="Figure 2" captionStartId-0="2.[813,877,446,468]" captionStartId-1="2.[813,877,1251,1273]" captionTargetBox-0="[811,1454,215,429]" captionTargetBox-1="[869,1398,548,1234]" captionTargetId-0="figure-676@2.[811,1454,215,429]" captionTargetId-1="figure-705@2.[869,1398,548,1234]" captionTargetPageId-0="2" captionTargetPageId-1="2" captionText-0="Figure 1. – Mastiglanis durantoni, n. sp., holotype, MNHN 2015- 244, male, 63.7 mm SL, Tampok River, tributary to Maroni stream, French Guiana. Lateral view." captionText-1="Figure 2. – Mastiglanis durantoni, n. sp., holotype, MNHN 2015- 244, 63.7 mm SL. (A) Dorsal and (B) ventral views of head." figureDoi-0="http://doi.org/10.5281/zenodo.10493321" figureDoi-1="http://doi.org/10.5281/zenodo.10493323" httpUri-0="https://zenodo.org/record/10493321/files/figure.png" httpUri-1="https://zenodo.org/record/10493323/files/figure.png" pageId="2" pageNumber="127">Figs 1-2</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C307528608220237FF32FA7FFD36FA7C" pageId="2" pageNumber="127" type="reference_group">
<paragraph id="8BA2010D08220237FF32FA7FFCDFFA5F" blockId="2.[132,775,1457,1907]" box="[170,770,1457,1481]" pageId="2" pageNumber="127">
<treatmentCitationGroup id="AB0D262308220237FF32FA7FFCDFFA5F" box="[170,770,1457,1481]" pageId="2" pageNumber="127">
<taxonomicName id="4C1D7A8E08220237FF32FA7FFE27FA5F" ID-CoL="6QVS8" authorityName="Eigenmann" authorityYear="1912" box="[170,506,1457,1481]" family="Pimelodidae" genus="Megalonema" isUncertain="true" kingdom="Animalia" order="Siluriformes" pageId="2" pageNumber="127" phylum="Chordata" rank="species" species="platycephalum">
<emphasis id="B969DD1F08220237FF32FA7FFEE8FA5F" box="[170,309,1457,1481]" italics="true" pageId="2" pageNumber="127">Megalonema</emphasis>
cf.
<emphasis id="B969DD1F08220237FEC5FA7FFE27FA5F" box="[349,506,1457,1481]" italics="true" pageId="2" pageNumber="127">platycephalum</emphasis>
</taxonomicName>
;
<treatmentCitation id="0ABC271C08220237FD9FFA7CFD23FA5F" author="LE BAIL P. Y. &amp; KEITH P. &amp; PLANQUETTE P." box="[519,766,1457,1481]" page="95" pageId="2" pageNumber="127" year="2000">
<bibRefCitation id="EF8C7CFC08220237FD9FFA7CFD23FA5F" author="LE BAIL P. Y. &amp; KEITH P. &amp; PLANQUETTE P." box="[519,766,1457,1481]" pageId="2" pageNumber="127" pagination="1 - 307" refId="ref7460" refString="LE BAIL P. Y., KEITH P. &amp; PLANQUETTE P., 2000. - Atlas des Poissons d'Eau douce de Guyane (tome 2) - Siluriformes. Patrimoines Naturels, MNHN, 43 (2): 1 - 307." type="journal article" year="2000">
Le Bail
<emphasis id="B969DD1F08220237FDC4FA7CFD57FA5F" box="[604,650,1457,1481]" italics="true" pageId="2" pageNumber="127">et al</emphasis>
., 2000: 95
</bibRefCitation>
</treatmentCitation>
.
</treatmentCitationGroup>
</paragraph>
<paragraph id="8BA2010D08220237FF32FA1CFD36FA7C" blockId="2.[132,775,1457,1907]" box="[170,747,1490,1514]" pageId="2" pageNumber="127">
<treatmentCitationGroup id="AB0D262308220237FF32FA1CFD36FA7C" box="[170,747,1490,1514]" pageId="2" pageNumber="127">
<taxonomicName id="4C1D7A8E08220237FF32FA1CFE7CFA7C" ID-CoL="3YCVL" authorityName="Bockmann" authorityYear="1994" box="[170,417,1490,1514]" family="Heptapteridae" genus="Mastiglanis" isUncertain="true" kingdom="Animalia" order="Siluriformes" pageId="2" pageNumber="127" phylum="Chordata" rank="species" species="asopos">
<emphasis id="B969DD1F08220237FF32FA1CFE7CFA7C" box="[170,417,1490,1514]" italics="true" pageId="2" pageNumber="127">Mastiglanis aff. asopos</emphasis>
</taxonomicName>
;
<treatmentCitation id="0ABC271C08220237FE36FA1DFD6FFA7C" author="LE BAIL P. Y. &amp; COVAIN R. &amp; JEGU M. &amp; FISCH-MULLER S. &amp; OUROUX R. &amp; KEITH P." box="[430,690,1490,1514]" page="304" pageId="2" pageNumber="127" year="2012">
<bibRefCitation id="EF8C7CFC08220237FE36FA1DFD6FFA7C" author="LE BAIL P. Y. &amp; COVAIN R. &amp; JEGU M. &amp; FISCH-MULLER S. &amp; OUROUX R. &amp; KEITH P." box="[430,690,1490,1514]" pageId="2" pageNumber="127" pagination="293 - 319" refId="ref7506" refString="LE BAIL P. Y., COVAIN R., JEGU M., FISCH-MULLER S., VIG- OUROUX R. &amp; KEITH P., 2012. - Updated checklist of the freshwater and estuarine fishes of French Guiana. Cybium, 36: 293 - 319." type="journal article" year="2012">
Le Bail
<emphasis id="B969DD1F08220237FD9BFA1DFDECFA7C" box="[515,561,1490,1514]" italics="true" pageId="2" pageNumber="127">et al</emphasis>
., 2012: 304
</bibRefCitation>
</treatmentCitation>
, 316.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C307528608220237FF32FA3DFF69F8E5" pageId="2" pageNumber="127" type="materials_examined">
<paragraph id="8BA2010D08220237FF32FA3DFDD8F9DA" blockId="2.[132,775,1457,1907]" pageId="2" pageNumber="127">
<materialsCitation id="3B750B5008220237FF32FA3DFDD8F9DA" collectingDate="1998-11-17" collectionCode="MNHN" collectorName="P. Keith &amp; P. Y. Le Bail" country="French Guiana" location="Tampok River" pageId="2" pageNumber="127" specimenCode="MNHN 2015-244" specimenCount="1" stateProvince="tributary to Maroni stream" typeStatus="holotype">
<typeStatus id="54A6BFAF08220237FF32FA3DFEC5F99D" box="[170,280,1523,1547]" pageId="2" pageNumber="127" type="holotype">Holotype</typeStatus>
. –
<specimenCode id="DBBBA97608220237FEA1FA3DFDD8F99D" box="[313,517,1523,1547]" collectionCode="MNHN" country="France" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" lsid="urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="2" pageNumber="127">MNHN 2015-244</specimenCode>
,
<quantity id="4CE5ACE808220237FD88FA3DFDA8F99C" box="[528,629,1523,1547]" metricMagnitude="-2" metricUnit="m" metricValue="6.37" pageId="2" pageNumber="127" unit="mm" value="63.7">63.7 mm</quantity>
SL,
<location id="8EC257D608220237FD34FA3DFF1AF9BD" LSID="urn:lsid:plazi:treatment:03B4B01B08220232FE9CFA81FE53FBF7:8EC257D608220237FD34FA3DFF1AF9BD" country="French Guiana" name="Tampok River" pageId="2" pageNumber="127" stateProvince="tributary to Maroni stream">Tampok River</location>
,
<collectingRegion id="49D9CFEF08220237FF4BF9DDFDD1F9BD" box="[211,524,1555,1579]" pageId="2" pageNumber="127">tributary to Maroni stream</collectingRegion>
,
<collectingCountry id="F30A419D08220237FD81F9DDFD1AF9BD" box="[537,711,1555,1579]" name="French Guiana" pageId="2" pageNumber="127">French Guiana</collectingCountry>
, coll.
<collectorName id="26E864DB08220237FF1CF9FBFF06F9DA" box="[132,219,1588,1612]" pageId="2" pageNumber="127">P. Keith</collectorName>
,
<collectorName id="26E864DB08220237FF7DF9FBFEB8F9DA" box="[229,357,1588,1612]" pageId="2" pageNumber="127">P.Y. Le Bail</collectorName>
,
<date id="FFA327CD08220237FEF7F9FAFDDFF9DA" box="[367,514,1588,1612]" pageId="2" pageNumber="127" value="1998-11-17">
<collectingDate id="EFE7DE2508220237FEF7F9FAFDDFF9DA" box="[367,514,1588,1612]" pageId="2" pageNumber="127" value="1998-11-17">17 Nov. 1998</collectingDate>
</date>
.
</materialsCitation>
</paragraph>
<paragraph id="8BA2010D08220237FF32F99BFF69F8E5" blockId="2.[132,775,1457,1907]" pageId="2" pageNumber="127">
<materialsCitation id="3B750B5008220237FF32F99BFE5DF918" collectingDate="1998-11-17" collectionCode="MNHN" collectorName="P. Keith &amp; Keith, P. Y." country="French Guiana" location="Tampok River" pageId="2" pageNumber="127" specimenCode="MNHN 2015-245" specimenCount="3" typeStatus="paratype">
<typeStatus id="54A6BFAF08220237FF32F99BFEC5F9FB" box="[170,280,1621,1645]" pageId="2" pageNumber="127" type="paratype">Paratypes</typeStatus>
. –
<specimenCode id="DBBBA97608220237FEAEF99BFE27F9FB" box="[310,506,1621,1645]" collectionCode="MNHN" country="France" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" lsid="urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="2" pageNumber="127">MNHN 2015-245</specimenCode>
,
<specimenCount id="9D1BCA8408220237FD9DF99BFDCEF9FB" box="[517,531,1621,1645]" pageId="2" pageNumber="127">3</specimenCount>
ex,
<quantity id="4CE5ACE808220237FDD9F99BFD07F9FA" box="[577,730,1621,1645]" metricMagnitude="-2" metricUnit="m" metricValue="5.44" metricValueMax="6.49" metricValueMin="4.39" pageId="2" pageNumber="127" unit="mm" value="54.4" valueMax="64.9" valueMin="43.9">43.9-64.9 mm</quantity>
SL, same data as holotype
</materialsCitation>
;
<materialsCitation id="3B750B5008220237FE13F9B8FE0CF938" collectingDate="1998-11-17" collectionCode="MNHN" collectorName="P. Keith &amp; Keith, P. Y." country="French Guiana" location="Tampok River" pageId="2" pageNumber="127" specimenCode="MNHN 2015-0248" specimenCount="1" typeStatus="paratype">
<specimenCode id="DBBBA97608220237FE13F9B8FDBCF918" box="[395,609,1654,1678]" collectionCode="MNHN" country="France" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" lsid="urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="2" pageNumber="127">MNHN 2015-0248</specimenCode>
, 2B,
<quantity id="4CE5ACE808220237FD04F9B8FF73F938" metricMagnitude="-2" metricUnit="m" metricValue="6.27" metricValueMax="7.07" metricValueMin="5.47" pageId="2" pageNumber="127" unit="mm" value="62.7" valueMax="70.7" valueMin="54.7">54.7-70.7 mm</quantity>
SL, same data as holotype
</materialsCitation>
.
<materialsCitation id="3B750B5008220237FE42F959FDFAF959" collectingDate="1998-11-17" collectionCode="MZUSP" collectorName="P. Keith &amp; Keith, P. Y." country="French Guiana" location="Tampok River" pageId="2" pageNumber="127" specimenCode="MZUSP 118118" specimenCount="2" typeStatus="paratype">
<specimenCode id="DBBBA97608220237FE42F959FD57F939" box="[474,650,1687,1711]" collectionCode="MZUSP" country="Brazil" httpUri="http://grbio.org/cool/6yx0-3nm7" name="Museu de Zoologia da Universidade de Sao Paulo" pageId="2" pageNumber="127">MZUSP 118118</specimenCode>
,
<specimenCount id="9D1BCA8408220237FD0DF959FD7FF939" box="[661,674,1687,1711]" pageId="2" pageNumber="127">2</specimenCount>
ex,
<quantity id="4CE5ACE808220237FD57F958FF34F959" metricMagnitude="-2" metricUnit="m" metricValue="5.7" metricValueMax="6.709999999999999" metricValueMin="4.6899999999999995" pageId="2" pageNumber="127" unit="mm" value="57.0" valueMax="67.1" valueMin="46.9">46.9- 67.1 mm</quantity>
SL, same data as holotype
</materialsCitation>
;.
<materialsCitation id="3B750B5008220237FDAEF976FD9FF8A4" collectingDate="1997-09-30" collectionCode="MNHN" collectorName="P. Y. Le Bail &amp; P. Keith &amp; M. Jegu &amp; E. Vigneux &amp; M. Duranton" country="French Guiana" location="Grand Inini" municipality="Maroni" pageId="2" pageNumber="127" specimenCode="MNHN 2015-246" specimenCount="2" stateProvince="tributary to Maroni stream" typeStatus="paratype">
<specimenCode id="DBBBA97608220237FDAEF976FCDEF959" box="[566,771,1719,1743]" collectionCode="MNHN" country="France" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" lsid="urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="2" pageNumber="127">MNHN 2015-246</specimenCode>
,
<specimenCount id="9D1BCA8408220237FF1CF916FF4FF966" box="[132,146,1752,1776]" pageId="2" pageNumber="127">2</specimenCount>
ex,
<quantity id="4CE5ACE808220237FF5CF916FEBEF979" box="[196,355,1752,1776]" metricMagnitude="-2" metricUnit="m" metricValue="4.845" metricValueMax="5.06" metricValueMin="4.63" pageId="2" pageNumber="127" unit="mm" value="48.45" valueMax="50.6" valueMin="46.3">46.3-50.6 mm</quantity>
SL,
<location id="8EC257D608220237FE02F916FDFCF966" LSID="urn:lsid:plazi:treatment:03B4B01B08220232FE9CFA81FE53FBF7:8EC257D608220237FE02F916FDFCF966" box="[410,545,1752,1776]" country="French Guiana" municipality="Maroni" name="Grand Inini" pageId="2" pageNumber="127" stateProvince="tributary to Maroni stream">Grand Inini</location>
,
<collectingRegion id="49D9CFEF08220237FDB5F916FF12F886" pageId="2" pageNumber="127">tributary to Maroni stream</collectingRegion>
,
<collectingCountry id="F30A419D08220237FF41F937FEA7F887" box="[217,378,1785,1809]" name="French Guiana" pageId="2" pageNumber="127">French Guiana</collectingCountry>
, coll.
<collectorName id="26E864DB08220237FE23F937FDE0F887" box="[443,573,1785,1809]" pageId="2" pageNumber="127">P.Y. Le Bail</collectorName>
,
<collectorName id="26E864DB08220237FDD0F937FD7DF887" box="[584,672,1785,1809]" pageId="2" pageNumber="127">P. Keith</collectorName>
,
<collectorName id="26E864DB08220237FD32F937FCDEF887" box="[682,771,1785,1809]" pageId="2" pageNumber="127">M. Jégu</collectorName>
,
<collectorName id="26E864DB08220237FF1CF8D4FED9F8A7" box="[132,260,1817,1841]" pageId="2" pageNumber="127">E. Vigneux</collectorName>
,
<collectorName id="26E864DB08220237FE97F8D4FE7FF8A7" box="[271,418,1818,1841]" pageId="2" pageNumber="127">M. Duranton</collectorName>
,
<date id="FFA327CD08220237FE35F8D4FD9FF8A4" box="[429,578,1818,1842]" pageId="2" pageNumber="127" value="1997-09-30">
<collectingDate id="EFE7DE2508220237FE35F8D4FD9FF8A4" box="[429,578,1818,1842]" pageId="2" pageNumber="127" value="1997-09-30">30 Sep. 1997</collectingDate>
</date>
</materialsCitation>
;
<materialsCitation id="3B750B5008220237FDD6F8D4FF69F8E5" collectingDate="1997-09-30" collectionCode="MZUSP" collectorName="P. Y. Le Bail &amp; P. Keith &amp; M. Jegu &amp; E. Vigneux &amp; M. Duranton" country="French Guiana" location="Grand Inini" municipality="Maroni" pageId="2" pageNumber="127" specimenCode="MZUSP 118119" specimenCount="2" typeStatus="paratype">
<specimenCode id="DBBBA97608220237FDD6F8D4FCDEF8A4" box="[590,771,1818,1842]" collectionCode="MZUSP" country="Brazil" httpUri="http://grbio.org/cool/6yx0-3nm7" name="Museu de Zoologia da Universidade de Sao Paulo" pageId="2" pageNumber="127">MZUSP 118119</specimenCode>
,
<specimenCount id="9D1BCA8408220237FF1CF8F4FF4FF8C4" box="[132,146,1850,1874]" pageId="2" pageNumber="127">2</specimenCount>
ex (1BC),
<quantity id="4CE5ACE808220237FE94F8F4FE7BF8C4" box="[268,422,1850,1874]" metricMagnitude="-2" metricUnit="m" metricValue="4.305" metricValueMax="4.49" metricValueMin="4.12" pageId="2" pageNumber="127" unit="mm" value="43.05" valueMax="44.9" valueMin="41.2">41.2-44.9 mm</quantity>
SL, same data as MNHN 2015- 246.
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="C307528608220237FCB5FA96FBFAF8E5" pageId="2" pageNumber="127" type="diagnosis">
<paragraph id="8BA2010D08220237FCB5FA96FC46FAE6" blockId="2.[813,1456,1368,1907]" box="[813,923,1368,1392]" pageId="2" pageNumber="127">
<emphasis id="B969DD1F08220237FCB5FA96FC46FAE6" bold="true" box="[813,923,1368,1392]" pageId="2" pageNumber="127">Diagnosis</emphasis>
</paragraph>
<paragraph id="8BA2010D08220237FCCAFAB5FBFAF8E5" blockId="2.[813,1456,1368,1907]" pageId="2" pageNumber="127">
Distinguished from its only congener,
<taxonomicName id="4C1D7A8E08220237FA96FAB5FA5EFA04" authorityName="Bockmann" authorityYear="1994" box="[1294,1411,1403,1426]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="2" pageNumber="127" phylum="Chordata" rank="species" species="asopos">
<emphasis id="B969DD1F08220237FA96FAB5FA5EFA04" box="[1294,1411,1403,1426]" italics="true" pageId="2" pageNumber="127">M. asopos</emphasis>
</taxonomicName>
, by the following characteristics: 1) slender caudal peduncle (
<figureCitation id="13261D8808220237FCADFA71FCAEFA41" box="[821,883,1471,1495]" captionStart="Figure 1" captionStartId="2.[813,877,446,468]" captionTargetBox="[811,1454,215,429]" captionTargetId="figure-676@2.[811,1454,215,429]" captionTargetPageId="2" captionText="Figure 1. – Mastiglanis durantoni, n. sp., holotype, MNHN 2015- 244, male, 63.7 mm SL, Tampok River, tributary to Maroni stream, French Guiana. Lateral view." figureDoi="http://doi.org/10.5281/zenodo.10493321" httpUri="https://zenodo.org/record/10493321/files/figure.png" pageId="2" pageNumber="127">Fig. 1</figureCitation>
; caudal peduncle depth 4.3-5.3% of SL vs. 5.6-6.3%); 2) upper jaw protruding markedly beyond lower, resulting in long snout (
<figureCitation id="13261D8808220237FC57F9CAFBC9F98A" box="[975,1044,1540,1564]" captionStart="Figure 3" captionStartId="3.[132,195,607,629]" captionTargetBox="[548,1455,215,743]" captionTargetId="figure-303@3.[548,1455,215,743]" captionTargetPageId="3" captionText="Figure 3. – Heads in ventral view, show- ing difference in upper-jaw lengths. A: Mastiglanis durantoni, n. sp., paratype, MZUSP 118118, 46.9 mm SL; B: Mastiglanis asopos, paratype, MZUSP 7446, 43.9 mm SL." figureDoi="http://doi.org/10.5281/zenodo.10493325" httpUri="https://zenodo.org/record/10493325/files/figure.png" pageId="2" pageNumber="127">Fig. 3</figureCitation>
; 36.5-42.0% of HL vs. 23.4-33.6%); 3) head depressed (
<figureCitation id="13261D8808220237FC64F9E8FBE1F9A8" box="[1020,1084,1574,1598]" captionStart="Figure 1" captionStartId="2.[813,877,446,468]" captionTargetBox="[811,1454,215,429]" captionTargetId="figure-676@2.[811,1454,215,429]" captionTargetPageId="2" captionText="Figure 1. – Mastiglanis durantoni, n. sp., holotype, MNHN 2015- 244, male, 63.7 mm SL, Tampok River, tributary to Maroni stream, French Guiana. Lateral view." figureDoi="http://doi.org/10.5281/zenodo.10493321" httpUri="https://zenodo.org/record/10493321/files/figure.png" pageId="2" pageNumber="127">Fig. 1</figureCitation>
; head depth 34.0-44.4% of HL vs. 44.4-53.0%); 4) procurrent caudal fin rays 12 dorsally and ventrally (vs. 14-17); 5) dorsal margin of adipose fin concave (vs. variably convex, straight or gently sinusoidal); 6) occipital process deeply notched, distally V-shaped, forming an acute angle (
<figureCitation id="13261D8808220237FC24F91CFBDEF97C" box="[956,1027,1746,1770]" captionStart="Figure 4" captionStartId="3.[132,196,1259,1281]" captionTargetBox="[548,1455,782,1347]" captionTargetId="figure-343@3.[548,1455,782,1347]" captionTargetPageId="3" captionText="Figure 4. – CT scan image of supraoc- cipital of Mastiglanis durantoni, MZUSP 118118, paratype. A: Dorsal view; B: Ventral view.Anterior to top." figureDoi="http://doi.org/10.5281/zenodo.10493329" httpUri="https://zenodo.org/record/10493329/files/figure.png" pageId="2" pageNumber="127">Fig. 4</figureCitation>
; vs. distal margin of occipital process variably-shaped, with distal concavity, when present, semicircular or not deep, forming an obtuse angle); 7) mesethmoid cornu widest at its midlength (
<figureCitation id="13261D8808220237FB32F8F7FB37F8C6" box="[1194,1258,1848,1873]" captionStart="Figure 5" captionStartId="4.[132,196,972,994]" captionTargetBox="[132,774,215,955]" captionTargetId="figure-367@4.[132,774,215,955]" captionTargetPageId="4" captionText="Figure 5. – CT scan image of anterior portion of neurocranium of Mastiglanis durantoni, MZUSP 118118, paratype, dorsal view. Abbreviations: fr, frontal; le, lateral ethmoid; me, mesethmoid." figureDoi="http://doi.org/10.5281/zenodo.10493333" httpUri="https://zenodo.org/record/10493333/files/figure.png" pageId="2" pageNumber="127">Fig. 5</figureCitation>
; vs. gradually narrower from base to tip).
</paragraph>
</subSubSection>
<caption id="DF62518508230236FF1CFD91FE4CFD7A" ID-DOI="http://doi.org/10.5281/zenodo.10493325" ID-Zenodo-Dep="10493325" httpUri="https://zenodo.org/record/10493325/files/figure.png" pageId="3" pageNumber="128" startId="3.[132,195,607,629]" targetBox="[548,1455,215,743]" targetPageId="3" targetType="figure">
<paragraph id="8BA2010D08230236FF1CFD91FE4CFD7A" blockId="3.[132,511,607,749]" pageId="3" pageNumber="128">
Figure 3. – Heads in ventral view, showing difference in upper-jaw lengths.
<emphasis id="B969DD1F08230236FF1CFD41FF48FD32" bold="true" box="[132,149,655,676]" pageId="3" pageNumber="128">A</emphasis>
:
<taxonomicName id="4C1D7A8E08230236FF31FD41FE78FD32" authority="Pinna &amp; Keith, 2019" authorityName="Pinna &amp; Keith" authorityYear="2019" box="[169,421,655,676]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="128" phylum="Chordata" rank="species" species="durantoni" status="sp. nov.">
<emphasis id="B969DD1F08230236FF31FD41FE78FD32" box="[169,421,655,676]" italics="true" pageId="3" pageNumber="128">Mastiglanis durantoni</emphasis>
</taxonomicName>
,
<taxonomicNameLabel id="A25A606408230236FE20FD5EFE24FD33" box="[440,505,656,677]" pageId="3" pageNumber="128" rank="species">n. sp.</taxonomicNameLabel>
, paratype, MZUSP 118118, 46.9 mm SL;
<emphasis id="B969DD1F08230236FF28FD71FF1DFD42" bold="true" box="[176,192,703,724]" pageId="3" pageNumber="128">B</emphasis>
:
<taxonomicName id="4C1D7A8E08230236FF56FD71FE4EFD43" authorityName="Bockmann" authorityYear="1994" box="[206,403,703,725]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="128" phylum="Chordata" rank="species" species="asopos">
<emphasis id="B969DD1F08230236FF56FD71FE4EFD43" box="[206,403,703,725]" italics="true" pageId="3" pageNumber="128">Mastiglanis asopos</emphasis>
</taxonomicName>
, paratype, MZUSP 7446, 43.9 mm SL.
</paragraph>
</caption>
<caption id="DF62518508230236FF1CFB25FE2CFADF" ID-DOI="http://doi.org/10.5281/zenodo.10493329" ID-Zenodo-Dep="10493329" httpUri="https://zenodo.org/record/10493329/files/figure.png" pageId="3" pageNumber="128" startId="3.[132,196,1259,1281]" targetBox="[548,1455,782,1347]" targetPageId="3" targetType="figure">
<paragraph id="8BA2010D08230236FF1CFB25FE2CFADF" blockId="3.[132,510,1259,1353]" pageId="3" pageNumber="128">
Figure 4. – CT scan image of supraoccipital of
<taxonomicName id="4C1D7A8E08230236FF61FACDFE23FA8F" box="[249,510,1283,1305]" pageId="3" pageNumber="128">
<emphasis id="B969DD1F08230236FF61FACDFE2AFA8E" box="[249,503,1283,1304]" italics="true" pageId="3" pageNumber="128">Mastiglanis durantoni</emphasis>
,
</taxonomicName>
MZUSP 118118, paratype.
<emphasis id="B969DD1F08230236FE03FAD5FE71FAA6" bold="true" box="[411,428,1307,1328]" pageId="3" pageNumber="128">A</emphasis>
: Dorsal view;
<emphasis id="B969DD1F08230236FF27FAFDFF12FADE" bold="true" box="[191,207,1331,1352]" pageId="3" pageNumber="128">B</emphasis>
: Ventral view. Anterior to top.
</paragraph>
</caption>
<subSubSection id="C307528608230233FF1CFAB4FD81FAC9" lastPageId="6" lastPageNumber="131" pageId="3" pageNumber="128" type="description">
<paragraph id="8BA2010D08230236FF1CFAB4FED5FA04" blockId="3.[132,776,1402,1906]" box="[132,264,1402,1426]" pageId="3" pageNumber="128">
<emphasis id="B969DD1F08230236FF1CFAB4FED5FA04" bold="true" box="[132,264,1402,1426]" pageId="3" pageNumber="128">Description</emphasis>
</paragraph>
<paragraph id="8BA2010D08230230FF32FA54FB7BF8E5" blockId="3.[132,776,1402,1906]" lastBlockId="5.[813,1457,1594,1907]" lastPageId="5" lastPageNumber="130" pageId="3" pageNumber="128">
Morphometric data provided in
<tableCitation id="C69F34B608230236FD91FA54FD8CFA24" box="[521,593,1434,1458]" captionStart="Table I" captionStartId="1.[760,816,685,707]" captionTargetBox="[768,1450,746,1898]" captionTargetId="graphics-637@1.[760,1458,736,1901]" captionText="Table I. – Morphometric values of Mastiglanis durantoni. Data are expressed as proportions of SL or of HL (starting with head depth)." httpUri="http://table.plazi.org/id/DF62518508210234FD60FD63FAAAFD4D" pageId="3" pageNumber="128" tableUuid="DF62518508210234FD60FD63FAAAFD4D">table I</tableCitation>
. Refer to figures 1 and 2 for general aspect. Dorsal profile of body sloping from tip of snout to orbit, less so from that point to dorsal-fin origin, nearly straight from that point to adipose-fin origin and then slightly concave towards caudal fin. Ventral profile straight to anal-fin origin, gently concave along caudal peduncle. Body elongated, slightly depressed at dorsal-fin origin, gradually more compressed toward caudal peduncle. Concentration of adipose bodies on axillary region, immediately dorsoposteriorly to base of pectoral fin, composed of globular corpuscles, opaque-white in preserved specimens. Lateral line complete, extending posteriorly to basal third to half of caudal fin, between upper and lower lobes. Myomeres visible through skin along most of body. Head depressed, dorsally covered by thin skin. Cheeks formed by muscular mass of adductor mandibulae, dorsally forming well-defined groove accommodating basal portion of maxillary barbel. Snout long and strongly depressed, semicircular in dorsal view. Posterior nostrils well separated from anterior nostrils (internarial length about twice posterior internarial width), partially occluded with flexible anterior skin flaps. Eyes large, closely positioned in dorsal view, with orbital rim subtly invaginated anteroventrally. Mouth inferior, crescent-shaped, with flat fleshy rictal fold. Upper jaw markedly longer than lower, with premaxilla extending considerably anteriorly to mandibular symphysis (
<figureCitation id="13261D8808230236FC34F974FC20F944" box="[940,1021,1722,1746]" captionStart="Figure 3" captionStartId="3.[132,195,607,629]" captionTargetBox="[548,1455,215,743]" captionTargetId="figure-303@3.[548,1455,215,743]" captionTargetPageId="3" captionText="Figure 3. – Heads in ventral view, show- ing difference in upper-jaw lengths. A: Mastiglanis durantoni, n. sp., paratype, MZUSP 118118, 46.9 mm SL; B: Mastiglanis asopos, paratype, MZUSP 7446, 43.9 mm SL." figureDoi="http://doi.org/10.5281/zenodo.10493325" httpUri="https://zenodo.org/record/10493325/files/figure.png" pageId="3" pageNumber="128">Fig. 3A</figureCitation>
), forming nearly spatulate snout (
<figureCitation id="13261D8808230236FAFEF974FA77F944" box="[1382,1450,1722,1746]" captionStart="Figure 2" captionStartId="2.[813,877,1251,1273]" captionTargetBox="[869,1398,548,1234]" captionTargetId="figure-705@2.[869,1398,548,1234]" captionTargetPageId="2" captionText="Figure 2. – Mastiglanis durantoni, n. sp., holotype, MNHN 2015- 244, 63.7 mm SL. (A) Dorsal and (B) ventral views of head." figureDoi="http://doi.org/10.5281/zenodo.10493323" httpUri="https://zenodo.org/record/10493323/files/figure.png" pageId="3" pageNumber="128">Figs 2</figureCitation>
,
<figureCitation id="13261D8808230236FCB5F914FC90F964" box="[813,845,1754,1778]" captionStart="Figure 3" captionStartId="3.[132,195,607,629]" captionTargetBox="[548,1455,215,743]" captionTargetId="figure-303@3.[548,1455,215,743]" captionTargetPageId="3" captionText="Figure 3. – Heads in ventral view, show- ing difference in upper-jaw lengths. A: Mastiglanis durantoni, n. sp., paratype, MZUSP 118118, 46.9 mm SL; B: Mastiglanis asopos, paratype, MZUSP 7446, 43.9 mm SL." figureDoi="http://doi.org/10.5281/zenodo.10493325" httpUri="https://zenodo.org/record/10493325/files/figure.png" pageId="3" pageNumber="128">3A</figureCitation>
). Premaxilla (
<figureCitation id="13261D8808230236FC7DF914FBF9F964" box="[997,1060,1754,1778]" captionStart="Figure 6" captionStartId="4.[132,195,1692,1714]" captionTargetBox="[132,775,1075,1675]" captionTargetId="figure-398@4.[132,775,1075,1675]" captionTargetPageId="4" captionText="Figure 6. – CT scan image of premaxilla of Mastiglanis durantoni, MZUSP 118118, paratype. A: Dorsal view; B: Ventral view. Anterior to top." figureDoi="http://doi.org/10.5281/zenodo.10493335" httpUri="https://zenodo.org/record/10493335/files/figure.png" pageId="3" pageNumber="128">Fig. 6</figureCitation>
) with approximately 40 tiny viliform teeth arranged in 3-4 irregular rows, its posterior comer gently curved posteriorly. Lower jaw delicate, with anguloarticular widely trabeculate on lateral surface, with similar dentition disposed in 2-3 rows (
<figureCitation id="13261D8808230236FBDEF894FB58F8E4" box="[1094,1157,1882,1906]" captionStart="Figure 7" captionStartId="4.[813,877,639,661]" captionTargetBox="[813,1456,215,571]" captionTargetId="figure-429@4.[813,1456,215,571]" captionTargetPageId="4" captionText="Figure 7. – CT scan image of lower jaw of Mastiglanis durantoni, MZUSP 118118, paratype, lateral view, left side, anterior to left. Abbreviations: aa, anguloarticular; den, dentary; lsp, opening for latero-sensory pore; tr, trabeculae." figureDoi="http://doi.org/10.5281/zenodo.10493331" httpUri="https://zenodo.org/record/10493331/files/figure.png" pageId="3" pageNumber="128">Fig. 7</figureCitation>
). Vomer edentulous (
<figureCitation id="13261D8808230236FAFEF894FA76F8E4" box="[1382,1451,1882,1906]" captionStart="Figure 5" captionStartId="4.[132,196,972,994]" captionTargetBox="[132,774,215,955]" captionTargetId="figure-367@4.[132,774,215,955]" captionTargetPageId="4" captionText="Figure 5. – CT scan image of anterior portion of neurocranium of Mastiglanis durantoni, MZUSP 118118, paratype, dorsal view. Abbreviations: fr, frontal; le, lateral ethmoid; me, mesethmoid." figureDoi="http://doi.org/10.5281/zenodo.10493333" httpUri="https://zenodo.org/record/10493333/files/figure.png" pageId="3" pageNumber="128">Figs 5</figureCitation>
,
<figureCitation id="13261D8808240231FF1CF8D4FF4EF8A4" box="[132,147,1818,1842]" captionStart="Figure 8" captionStartId="5.[132,195,1388,1410]" captionTargetBox="[132,1455,215,1371]" captionTargetId="figure-220@5.[132,1455,215,1371]" captionTargetPageId="5" captionText="Figure 8. – CT scan image of skull and anterior portion of vertebral column and dorsal fin of Mastiglanis durantoni, MZUSP 118118, paratype. A: Dorsal view; B: Right lateral view; C: Ventral view.Anterior to top. A more detailed view of the Weberian complex is provided in Fig. 13. Abbreviations: af, anterior fontanel; bo, basioccipital; epi, epioccipital; ex, exoccipital; fr, frontal; le, lateral ethmoid; me, mesethmoid; np1-2, nuchal plates 1 and 2; ns, neural spine; orb, orbitosphenoid; pa, parasphenoid; par, parapophysis; pf, posterior fontanel; plr, pleurar rib; pro, prootic; pt, pterotic; ptr, pterosphenoid; pts, posttemporo-supracleithrum; sn, supraneural; soc, supraoccipital; socs, supraoccipital spine; sph, sphenotic; vc5-9, vertebral centra 5 to 9; vo, vomer; wc, Weberian complex." figureDoi="http://doi.org/10.5281/zenodo.10493337" httpUri="https://zenodo.org/record/10493337/files/figure.png" pageId="4" pageNumber="129">8</figureCitation>
). Barbels nearly ovoid or round in cross section. Maxillary barbels long, extending posteriorly beyond origin of anal fin. Outer and inner mental barbels long, extending posteriorly slightly beyond bases of pelvic- and pectoral-fins, respectively. Branchiostegal membranes medially overlapping, joined to isthmus region only at anteriormost portion. Seven branchiostegal rays (5 on anterior ceratohyal, 1 on posterior ceratohyal, 1 on intervening cartilage). Eleven slender gill rakers on first branchial arch, ten on first ceratobranchial plus one at angle formed with first epibranchial (sometimes a vestigial one on epibranchial, near its articulation with ceratobranchial). Cranial fontanel long, interrupted by epiphyseal bridge just behind eyes (
<figureCitation id="13261D8808240231FC6EFBE9FBE1FBA9" box="[1014,1084,1063,1087]" captionStart="Figure 8" captionStartId="5.[132,195,1388,1410]" captionTargetBox="[132,1455,215,1371]" captionTargetId="figure-220@5.[132,1455,215,1371]" captionTargetPageId="5" captionText="Figure 8. – CT scan image of skull and anterior portion of vertebral column and dorsal fin of Mastiglanis durantoni, MZUSP 118118, paratype. A: Dorsal view; B: Right lateral view; C: Ventral view.Anterior to top. A more detailed view of the Weberian complex is provided in Fig. 13. Abbreviations: af, anterior fontanel; bo, basioccipital; epi, epioccipital; ex, exoccipital; fr, frontal; le, lateral ethmoid; me, mesethmoid; np1-2, nuchal plates 1 and 2; ns, neural spine; orb, orbitosphenoid; pa, parasphenoid; par, parapophysis; pf, posterior fontanel; plr, pleurar rib; pro, prootic; pt, pterotic; ptr, pterosphenoid; pts, posttemporo-supracleithrum; sn, supraneural; soc, supraoccipital; socs, supraoccipital spine; sph, sphenotic; vc5-9, vertebral centra 5 to 9; vo, vomer; wc, Weberian complex." figureDoi="http://doi.org/10.5281/zenodo.10493337" httpUri="https://zenodo.org/record/10493337/files/figure.png" pageId="4" pageNumber="129">Fig. 8</figureCitation>
). Width of fontanel mostly even along its length, slightly narrower near anterior end. Supraoccipital process large and wide, with parallel lateral edges and strongly concave, v-shaped distal margin. Bones of cranial roof thin, without ornamentation (
<figureCitation id="13261D8808240231FB09FB64FADCFB54" box="[1169,1281,1194,1218]" captionStart="Figure 8" captionStartId="5.[132,195,1388,1410]" captionTargetBox="[132,1455,215,1371]" captionTargetId="figure-220@5.[132,1455,215,1371]" captionTargetPageId="5" captionText="Figure 8. – CT scan image of skull and anterior portion of vertebral column and dorsal fin of Mastiglanis durantoni, MZUSP 118118, paratype. A: Dorsal view; B: Right lateral view; C: Ventral view.Anterior to top. A more detailed view of the Weberian complex is provided in Fig. 13. Abbreviations: af, anterior fontanel; bo, basioccipital; epi, epioccipital; ex, exoccipital; fr, frontal; le, lateral ethmoid; me, mesethmoid; np1-2, nuchal plates 1 and 2; ns, neural spine; orb, orbitosphenoid; pa, parasphenoid; par, parapophysis; pf, posterior fontanel; plr, pleurar rib; pro, prootic; pt, pterotic; ptr, pterosphenoid; pts, posttemporo-supracleithrum; sn, supraneural; soc, supraoccipital; socs, supraoccipital spine; sph, sphenotic; vc5-9, vertebral centra 5 to 9; vo, vomer; wc, Weberian complex." figureDoi="http://doi.org/10.5281/zenodo.10493337" httpUri="https://zenodo.org/record/10493337/files/figure.png" pageId="4" pageNumber="129">Fig. 8A, B</figureCitation>
). Frontals, sphenotics, pterotics, and supraoccipital joined via overlapping joints. Nasal bones very elongate, anteriorly reaching anterior portion of mesethmoid and then curved laterally along anterior margin of mesethmoid cornua. Infraorbital bones composed of five elements: first infraorbital (with tiny transversal ossified canal medially-directed), and three subsequent long tubular infraorbitals (posteriormost onestrongly angled). Dorsal fin large, quadrangular in overall shape with distal margin gently concave, with I + 6 (*) rays. First dorsal-fin element (homologous to second dorsal-fin spine in the generalized siluriform condition) segmented, rigid proximally for as long as first branched element, and with distal portion produced into long and flexible filament reaching to anterior third of adipose-fin. First and second branched dorsal-fin elements also longer than others. Locking element (spinelet, or first dorsal-fin spine in generalized siluriform condition) absent (
<figureCitation id="13261D8808240231FCADF916FC73F966" box="[821,942,1752,1776]" captionStart="Figure 8" captionStartId="5.[132,195,1388,1410]" captionTargetBox="[132,1455,215,1371]" captionTargetId="figure-220@5.[132,1455,215,1371]" captionTargetPageId="5" captionText="Figure 8. – CT scan image of skull and anterior portion of vertebral column and dorsal fin of Mastiglanis durantoni, MZUSP 118118, paratype. A: Dorsal view; B: Right lateral view; C: Ventral view.Anterior to top. A more detailed view of the Weberian complex is provided in Fig. 13. Abbreviations: af, anterior fontanel; bo, basioccipital; epi, epioccipital; ex, exoccipital; fr, frontal; le, lateral ethmoid; me, mesethmoid; np1-2, nuchal plates 1 and 2; ns, neural spine; orb, orbitosphenoid; pa, parasphenoid; par, parapophysis; pf, posterior fontanel; plr, pleurar rib; pro, prootic; pt, pterotic; ptr, pterosphenoid; pts, posttemporo-supracleithrum; sn, supraneural; soc, supraoccipital; socs, supraoccipital spine; sph, sphenotic; vc5-9, vertebral centra 5 to 9; vo, vomer; wc, Weberian complex." figureDoi="http://doi.org/10.5281/zenodo.10493337" httpUri="https://zenodo.org/record/10493337/files/figure.png" pageId="4" pageNumber="129">Fig. 8A, B</figureCitation>
). Seven dorsal-fin pterygiophores articulating with bifid neural spines of vertebrae 6 through 12-13. Pectoral fin scythe-shaped with I + 8(2*) or I + 9 (1). First element unfused, segmented, non-serrated, with basal portion (equivalent to length of first branched element) rigid and distal portion filamentous (
<figureCitation id="13261D8808250230FEA7F9F4FE5FF9C4" box="[319,386,1594,1618]" captionStart="Figure 1" captionStartId="2.[813,877,446,468]" captionTargetBox="[811,1454,215,429]" captionTargetId="figure-676@2.[811,1454,215,429]" captionTargetPageId="2" captionText="Figure 1. – Mastiglanis durantoni, n. sp., holotype, MNHN 2015- 244, male, 63.7 mm SL, Tampok River, tributary to Maroni stream, French Guiana. Lateral view." figureDoi="http://doi.org/10.5281/zenodo.10493321" httpUri="https://zenodo.org/record/10493321/files/figure.png" pageId="5" pageNumber="130">Figs 1</figureCitation>
,
<figureCitation id="13261D8808250230FE17F9F4FE43F9C4" box="[399,414,1594,1618]" captionStart="Figure 2" captionStartId="2.[813,877,1251,1273]" captionTargetBox="[869,1398,548,1234]" captionTargetId="figure-705@2.[869,1398,548,1234]" captionTargetPageId="2" captionText="Figure 2. – Mastiglanis durantoni, n. sp., holotype, MNHN 2015- 244, 63.7 mm SL. (A) Dorsal and (B) ventral views of head." figureDoi="http://doi.org/10.5281/zenodo.10493323" httpUri="https://zenodo.org/record/10493323/files/figure.png" pageId="5" pageNumber="130">2</figureCitation>
), the tip of which extends beyond vertical though anal-fin origin or to anterior third of adipose fin. Postcleithral process small, straight and spine-like, with very fine tip. Pelvic fin large, with I + 5 rays, its origin at vertical though middle of dorsal-fin base. Anal-fin rays: ii + 7 (3*), (plus 1 rudimentary anterior ray); anal fin with rounded margin in lateral profile. Nine blade-like pterygiophores between hemal spines of vertebrae 22 through 28. Adipose fin large, isosceles-triangle shaped, with smallest side leading, its origin slightly anterior to vertical through origin of anal fin (
<figureCitation id="13261D8808250230FC15F9F4FC10F9C4" box="[909,973,1594,1618]" captionStart="Figure 1" captionStartId="2.[813,877,446,468]" captionTargetBox="[811,1454,215,429]" captionTargetId="figure-676@2.[811,1454,215,429]" captionTargetPageId="2" captionText="Figure 1. – Mastiglanis durantoni, n. sp., holotype, MNHN 2015- 244, male, 63.7 mm SL, Tampok River, tributary to Maroni stream, French Guiana. Lateral view." figureDoi="http://doi.org/10.5281/zenodo.10493321" httpUri="https://zenodo.org/record/10493321/files/figure.png" pageId="5" pageNumber="130">Fig. 1</figureCitation>
). Posterior edge of adipose fin slightly concave, with small posterior free flap. Caudal fin deeply forked, its lobes equal in length. Principal caudal rays 8/9 (*) and procurrent caudal rays 12 dorsal and 12 ventral (confirmed in 2 c&amp;s
<typeStatus id="54A6BFAF08250230FC15F975FC25F945" box="[909,1016,1723,1747]" pageId="5" pageNumber="130" type="paratype">paratypes</typeStatus>
). Hypurals 1 and 2, and 3, 4, and 5 fused. Parahypural separate. One large epural. Six pairs of pleural ribs associated with parapophyses of vertebrae 6 to 11. First complete haemal spine on vertebrae 13. Distal extremities of four anterior pleural ribs strongly expanded, with scythe-like aspect (
<figureCitation id="13261D8808250230FCE4F895FC13F8E5" box="[892,974,1883,1907]" captionStart="Figure 8" captionStartId="5.[132,195,1388,1410]" captionTargetBox="[132,1455,215,1371]" captionTargetId="figure-220@5.[132,1455,215,1371]" captionTargetPageId="5" captionText="Figure 8. – CT scan image of skull and anterior portion of vertebral column and dorsal fin of Mastiglanis durantoni, MZUSP 118118, paratype. A: Dorsal view; B: Right lateral view; C: Ventral view.Anterior to top. A more detailed view of the Weberian complex is provided in Fig. 13. Abbreviations: af, anterior fontanel; bo, basioccipital; epi, epioccipital; ex, exoccipital; fr, frontal; le, lateral ethmoid; me, mesethmoid; np1-2, nuchal plates 1 and 2; ns, neural spine; orb, orbitosphenoid; pa, parasphenoid; par, parapophysis; pf, posterior fontanel; plr, pleurar rib; pro, prootic; pt, pterotic; ptr, pterosphenoid; pts, posttemporo-supracleithrum; sn, supraneural; soc, supraoccipital; socs, supraoccipital spine; sph, sphenotic; vc5-9, vertebral centra 5 to 9; vo, vomer; wc, Weberian complex." figureDoi="http://doi.org/10.5281/zenodo.10493337" httpUri="https://zenodo.org/record/10493337/files/figure.png" pageId="5" pageNumber="130">Fig. 8B</figureCitation>
). Total vertebrae 38.
</paragraph>
<caption id="DF62518508240231FCB5FDB1FBA9FD4B" ID-DOI="http://doi.org/10.5281/zenodo.10493331" ID-Zenodo-Dep="10493331" httpUri="https://zenodo.org/record/10493331/files/figure.png" pageId="4" pageNumber="129" startId="4.[813,877,639,661]" targetBox="[813,1456,215,571]" targetPageId="4" targetType="figure">
<paragraph id="8BA2010D08240231FCB5FDB1FBA9FD4B" blockId="4.[813,1456,639,733]" pageId="4" pageNumber="129">
Figure 7. – CT scan image of lower jaw of
<taxonomicName id="4C1D7A8E08240231FB57FDB1FCA3FD3A" authority=", MZUSP" authorityName="MZUSP" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="4" pageNumber="129" phylum="Chordata" rank="species" species="durantoni">
<emphasis id="B969DD1F08240231FB57FDB1FA74FD02" box="[1231,1449,639,660]" italics="true" pageId="4" pageNumber="129">Mastiglanis durantoni</emphasis>
, MZUSP
</taxonomicName>
118118, paratype, lateral view, left side, anterior to left. Abbreviations: aa, anguloarticular; den, dentary; lsp, opening for latero-sensory pore; tr, trabeculae.
</paragraph>
</caption>
<caption id="DF62518508240231FF1CFC02FD00FB84" ID-DOI="http://doi.org/10.5281/zenodo.10493333" ID-Zenodo-Dep="10493333" httpUri="https://zenodo.org/record/10493333/files/figure.png" pageId="4" pageNumber="129" startId="4.[132,196,972,994]" targetBox="[132,774,215,955]" targetPageId="4" targetType="figure">
<paragraph id="8BA2010D08240231FF1CFC02FD00FB84" blockId="4.[132,776,972,1042]" pageId="4" pageNumber="129">
Figure 5. – CT scan image of anterior portion of neurocranium of
<taxonomicName id="4C1D7A8E08240231FF1CFC2AFE15FC6C" authority=", MZUSP" authorityName="MZUSP" box="[132,456,996,1018]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="4" pageNumber="129" phylum="Chordata" rank="species" species="durantoni">
<emphasis id="B969DD1F08240231FF1CFC2AFEB5FC6F" box="[132,360,996,1017]" italics="true" pageId="4" pageNumber="129">Mastiglanis durantoni</emphasis>
, MZUSP
</taxonomicName>
118118, paratype, dorsal view. Abbreviations: fr, frontal; le, lateral ethmoid; me, mesethmoid.
</paragraph>
</caption>
<caption id="DF62518508240231FF1CF952FF37F977" ID-DOI="http://doi.org/10.5281/zenodo.10493335" ID-Zenodo-Dep="10493335" httpUri="https://zenodo.org/record/10493335/files/figure.png" pageId="4" pageNumber="129" startId="4.[132,195,1692,1714]" targetBox="[132,775,1075,1675]" targetPageId="4" targetType="figure">
<paragraph id="8BA2010D08240231FF1CF952FF37F977" blockId="4.[132,775,1692,1762]" pageId="4" pageNumber="129">
Figure 6. – CT scan image of premaxilla of
<taxonomicName id="4C1D7A8E08240231FDB2F952FF09F95F" authority=", MZUSP" authorityName="MZUSP" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="4" pageNumber="129" phylum="Chordata" rank="species" species="durantoni">
<emphasis id="B969DD1F08240231FDB2F952FCDDF927" box="[554,768,1692,1713]" italics="true" pageId="4" pageNumber="129">Mastiglanis durantoni</emphasis>
, MZUSP
</taxonomicName>
118118, paratype.
<emphasis id="B969DD1F08240231FE15F97DFE43F95E" bold="true" box="[397,414,1715,1736]" pageId="4" pageNumber="129">A</emphasis>
: Dorsal view;
<emphasis id="B969DD1F08240231FDB6F97AFDE3F95F" bold="true" box="[558,574,1716,1737]" pageId="4" pageNumber="129">B</emphasis>
: Ventral view. Anterior to top.
</paragraph>
</caption>
<caption id="DF62518508250230FF1CFAA2FB8CFA6C" ID-DOI="http://doi.org/10.5281/zenodo.10493337" ID-Zenodo-Dep="10493337" httpUri="https://zenodo.org/record/10493337/files/figure.png" pageId="5" pageNumber="130" startId="5.[132,195,1388,1410]" targetBox="[132,1455,215,1371]" targetPageId="5" targetType="figure">
<paragraph id="8BA2010D08250230FF1CFAA2FB8CFA6C" blockId="5.[132,1456,1388,1530]" pageId="5" pageNumber="130">
Figure 8. – CT scan image of skull and anterior portion of vertebral column and dorsal fin of
<taxonomicName id="4C1D7A8E08250230FC6FFAA2FAFAFA17" authority=", MZUSP" authorityName="MZUSP" box="[1015,1319,1388,1410]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="5" pageNumber="130" phylum="Chordata" rank="species" species="durantoni">
<emphasis id="B969DD1F08250230FC6FFAA2FB10FA17" box="[1015,1229,1388,1409]" italics="true" pageId="5" pageNumber="130">Mastiglanis durantoni</emphasis>
, MZUSP
</taxonomicName>
118118, paratype.
<emphasis id="B969DD1F08250230FF21FA4AFF17FA0F" bold="true" box="[185,202,1412,1433]" pageId="5" pageNumber="130">A</emphasis>
: Dorsal view;
<emphasis id="B969DD1F08250230FEC0FA4AFEB5FA0F" bold="true" box="[344,360,1412,1433]" pageId="5" pageNumber="130">B</emphasis>
: Right lateral view; C: Ventral view. Anterior to top. A more detailed view of the Weberian complex is provided in Fig. 13. Abbreviations: af, anterior fontanel; bo, basioccipital; epi, epioccipital; ex, exoccipital; fr, frontal; le, lateral ethmoid; me, mesethmoid; np1-2, nuchal plates 1 and 2; ns, neural spine; orb, orbitosphenoid; pa, parasphenoid; par, parapophysis; pf, posterior fontanel; plr, pleurar rib; pro, prootic; pt, pterotic; ptr, pterosphenoid; pts, posttemporo-supracleithrum; sn, supraneural; soc, supraoccipital; socs, supraoccipital spine; sph, sphenotic; vc5-9, vertebral centra 5 to 9; vo, vomer; wc, Weberian complex.
</paragraph>
</caption>
<paragraph id="8BA2010D08260233FF12FF17FE4BFF67" blockId="6.[138,406,217,241]" box="[138,406,217,241]" pageId="6" pageNumber="131">
<heading id="D0EAB66108260233FF12FF17FE4BFF67" bold="true" box="[138,406,217,241]" fontSize="9" level="2" pageId="6" pageNumber="131" reason="3">
<emphasis id="B969DD1F08260233FF12FF17FE4BFF67" bold="true" box="[138,406,217,241]" pageId="6" pageNumber="131">Pigmentation in alcohol</emphasis>
</heading>
</paragraph>
<paragraph id="8BA2010D08260233FF32FF35FE12FC39" blockId="6.[132,775,251,943]" pageId="6" pageNumber="131">Overall body colour pale yellowish (translucent in life and white immediately after preservation), with very reduced dark pigment, restricted to dorsal half of body and head. Dorsal trunk region with indistinct disperse scattering of individual dark chromatophores. Seven concentrations of dark pigment on body: one between head and dorsal fin (just behind nape), one in front of dorsal-fin origin, one along bases of last three branched dorsal-fin rays (one in each ray base in some specimens), one between dorsal and adipose fin, one just behind the adipose-fin origin, one on the posterior point of adipose-fin base, and one on caudal peduncle. Laterally, sparse cloud of chromatophores concentrated along the horizontal septum, forming faint longitudinal band, expanded as dark triangle over hypural plate. Some scattered melanophores on top of head region, along path of infraorbital canals and over cheek, forming thin dark outline of olfactory chamber. Dorsal part of maxillary barbels with some dark pigment. Adipose fin with few irregularly distributed melanophores. Dorsal-, pectoral-, and caudal-fin rays with few isolated dark chromatophores on some rays, with interradial membranes hyaline.</paragraph>
<caption id="DF62518508260233FCB5FD47FCAFFD59" ID-DOI="http://doi.org/10.5281/zenodo.10493339" ID-Zenodo-Dep="10493339" httpUri="https://zenodo.org/record/10493339/files/figure.png" pageId="6" pageNumber="131" startId="6.[813,878,649,671]" targetBox="[813,1456,215,632]" targetPageId="6" targetType="figure">
<paragraph id="8BA2010D08260233FCB5FD47FCAFFD59" blockId="6.[813,1455,649,719]" pageId="6" pageNumber="131">
Figure 9. – Live specimen of
<taxonomicName id="4C1D7A8E08260233FBCAFD47FAF2FD08" box="[1106,1327,649,670]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="6" pageNumber="131" phylum="Chordata" rank="species" species="durantoni">
<emphasis id="B969DD1F08260233FBCAFD47FAF2FD08" box="[1106,1327,649,670]" italics="true" pageId="6" pageNumber="131">Mastiglanis durantoni</emphasis>
</taxonomicName>
n. sp, lateral view, French Guiana (photo by P.Y. Le Bail). Specimen not preserved.
</paragraph>
</caption>
<paragraph id="8BA2010D08260233FF1CFC16FEE0FB84" blockId="6.[132,775,984,1375]" pageId="6" pageNumber="131">
<emphasis id="B969DD1F08260233FF1CFC16FEBEFC66" bold="true" box="[132,355,984,1008]" pageId="6" pageNumber="131">Pigmentation in life</emphasis>
(based on photographs of one live specimen;
<figureCitation id="13261D8808260233FF6EFC37FEE8FB84" box="[246,309,1017,1042]" captionStart="Figure 9" captionStartId="6.[813,878,649,671]" captionTargetBox="[813,1456,215,632]" captionTargetId="figure-479@6.[813,1456,215,632]" captionTargetPageId="6" captionText="Figure 9. – Live specimen of Mastiglanis durantoni n. sp, lateral view, French Guiana (photo by P.Y. Le Bail). Specimen not preserved." figureDoi="http://doi.org/10.5281/zenodo.10493339" httpUri="https://zenodo.org/record/10493339/files/figure.png" pageId="6" pageNumber="131">Fig. 9</figureCitation>
)
</paragraph>
<paragraph id="8BA2010D08260233FF32FBD5FD81FAC9" blockId="6.[132,775,984,1375]" pageId="6" pageNumber="131">Body partly translucent, dusky tan-yellowish. Well-defined elongate dark fields along base of dorsal fin, anterior third of base of adipose fin and posterior three-quarters of base of anal fin. A round dark spot at base of caudal fin, slightly displaced towards ventral lobe. Faint irregular dark fields on sides of body, formed by concentrations of internal dark chromatophores on sagittal plane visible by transparency. Barbels iridescent white. Fins transparent, with first ray of dorsal fin light tan. Dorsal aorta visible by transparency as thin dark midlateral line along most of body.</paragraph>
</subSubSection>
<subSubSection id="C307528608260233FF1CFA47FE98F9B0" pageId="6" pageNumber="131" type="etymology">
<paragraph id="8BA2010D08260233FF1CFA47FF22FA37" blockId="6.[132,775,1417,1574]" box="[132,255,1417,1441]" pageId="6" pageNumber="131">
<emphasis id="B969DD1F08260233FF1CFA47FF22FA37" bold="true" box="[132,255,1417,1441]" pageId="6" pageNumber="131">Etymology</emphasis>
</paragraph>
<paragraph id="8BA2010D08260233FF32FA64FE98F9B0" blockId="6.[132,775,1417,1574]" pageId="6" pageNumber="131">
The species name is dedicated to Michel Duranton, who collected with the second author the first specimens of the species, in recognition of his fascinating work on the fauna of
<collectingCountry id="F30A419D08260233FF39F9C0FE9CF9B0" box="[161,321,1550,1574]" name="French Guiana" pageId="6" pageNumber="131">French Guiana</collectingCountry>
.
</paragraph>
</subSubSection>
<subSubSection id="C307528608260233FF1CF99EFDE6F8E5" pageId="6" pageNumber="131" type="distribution">
<paragraph id="8BA2010D08260233FF1CF99EFED2F9FE" blockId="6.[132,775,1616,1907]" box="[132,271,1616,1640]" pageId="6" pageNumber="131">
<emphasis id="B969DD1F08260233FF1CF99EFED2F9FE" bold="true" box="[132,271,1616,1640]" pageId="6" pageNumber="131">Distribution</emphasis>
</paragraph>
<paragraph id="8BA2010D08260233FF32F9BFFDE6F8E5" blockId="6.[132,775,1616,1907]" pageId="6" pageNumber="131">
Preserved specimens come from two small unnamed creeks, one tributary to the Tampok River and the other to the Grand Inini River (
<bibRefCitation id="EF8C7CFC08260233FE1CF97AFDB9F95A" author="LE BAIL P. Y. &amp; KEITH P. &amp; PLANQUETTE P." box="[388,612,1716,1740]" pageId="6" pageNumber="131" pagination="1 - 307" refId="ref7460" refString="LE BAIL P. Y., KEITH P. &amp; PLANQUETTE P., 2000. - Atlas des Poissons d'Eau douce de Guyane (tome 2) - Siluriformes. Patrimoines Naturels, MNHN, 43 (2): 1 - 307." type="journal article" year="2000">
Le Bail
<emphasis id="B969DD1F08260233FE78F97BFDCDF95A" box="[480,528,1716,1740]" italics="true" pageId="6" pageNumber="131">et al</emphasis>
., 2000
</bibRefCitation>
). Additionally, the species was seen and photographed in the Waki River (
<bibRefCitation id="EF8C7CFC08260233FF14F939FEC5F899" author="MELKI F." box="[140,280,1783,1807]" pageId="6" pageNumber="131" refId="ref7713" refString="MELKI F., 2016. - Poissons d'Eau douce de Guyane, plongee dans les eaux douces de l'Amazonie francaise. 348 p. Paris: Biotope." type="book" year="2016">Melki, 2016</bibRefCitation>
), but no specimens were preserved from that locality. All sites are within a ca.
<quantity id="4CE5ACE808260233FE64F8D6FD9FF8A6" box="[508,578,1816,1840]" metricMagnitude="4" metricUnit="m" metricValue="6.0" pageId="6" pageNumber="131" unit="km" value="60.0">60 km</quantity>
radius. The Tampok, Waki and Grand Inini are independent tributaries to the Maroni River in
<collectingCountry id="F30A419D08260233FEADF895FE0FF8E5" box="[309,466,1883,1907]" name="French Guiana" pageId="6" pageNumber="131">French Guiana</collectingCountry>
(
<figureCitation id="13261D8808260233FE78F895FDF2F8E5" box="[480,559,1883,1907]" captionStart="Figure 10" captionStartId="6.[813,878,1668,1690]" captionTargetBox="[816,1453,746,1648]" captionTargetId="figure-504@6.[813,1456,743,1651]" captionTargetPageId="6" captionText="Figure 10. – Geographical distribution of Mastiglanis durantoni n. sp." figureDoi="http://doi.org/10.5281/zenodo.10493341" httpUri="https://zenodo.org/record/10493341/files/figure.png" pageId="6" pageNumber="131">Fig. 10</figureCitation>
).
</paragraph>
</subSubSection>
<caption id="DF62518508260233FCB5F94AFCBDF927" ID-DOI="http://doi.org/10.5281/zenodo.10493341" ID-Zenodo-Dep="10493341" httpUri="https://zenodo.org/record/10493341/files/figure.png" pageId="6" pageNumber="131" startId="6.[813,878,1668,1690]" targetBox="[816,1453,746,1648]" targetPageId="6" targetType="figure">
<paragraph id="8BA2010D08260233FCB5F94AFCBDF927" blockId="6.[813,1455,1668,1713]" pageId="6" pageNumber="131">
Figure 10. – Geographical distribution of
<taxonomicName id="4C1D7A8E08260233FB48F94AFA72F90F" authority="Pinna &amp; Keith, 2019" authorityName="Pinna &amp; Keith" authorityYear="2019" box="[1232,1455,1668,1689]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="6" pageNumber="131" phylum="Chordata" rank="species" species="durantoni" status="sp. nov.">
<emphasis id="B969DD1F08260233FB48F94AFA72F90F" box="[1232,1455,1668,1689]" italics="true" pageId="6" pageNumber="131">Mastiglanis durantoni</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25A606408260233FCB5F952FCBDF927" box="[813,864,1692,1713]" pageId="6" pageNumber="131" rank="species">n. sp.</taxonomicNameLabel>
</paragraph>
</caption>
<subSubSection id="C307528608260232FCB5F917FE53FBF7" lastPageId="7" lastPageNumber="132" pageId="6" pageNumber="131" type="biology_ecology">
<paragraph id="8BA2010D08260233FCB5F917FC3EF967" blockId="6.[813,995,1753,1777]" box="[813,995,1753,1777]" pageId="6" pageNumber="131">
<heading id="D0EAB66108260233FCB5F917FC3EF967" bold="true" box="[813,995,1753,1777]" fontSize="9" level="2" pageId="6" pageNumber="131" reason="3">
<emphasis id="B969DD1F08260233FCB5F917FC3EF967" bold="true" box="[813,995,1753,1777]" pageId="6" pageNumber="131">Ecological notes</emphasis>
</heading>
</paragraph>
<paragraph id="8BA2010D08260232FCCAF937FE63FE02" blockId="6.[813,1456,1785,1905]" lastBlockId="7.[132,775,217,404]" lastPageId="7" lastPageNumber="132" pageId="6" pageNumber="131">
The species was found in the dry season in small clear water tributaries (depth
<quantity id="4CE5ACE808260233FBA0F8D7FB7EF8A7" box="[1080,1187,1817,1841]" metricMagnitude="-1" metricUnit="m" metricValue="4.0" metricValueMax="5.0" metricValueMin="3.0" pageId="6" pageNumber="131" unit="cm" value="40.0" valueMax="50.0" valueMin="30.0">30-50 cm</quantity>
) on substrate composed of pebbles and sand, with slow current. It co-occurred with 39 to 49 other species, several of which are catfishes:
<heading id="D0EAB66108270232FF1CFF14FE63FE02" centered="true" fontSize="9" level="2" pageId="7" pageNumber="132" reason="5">
<emphasis id="B969DD1F08270232FF1CFF14FE96FF67" box="[132,331,217,241]" italics="true" pageId="7" pageNumber="132">
<emphasis id="B969DD1F08260233FAF7F897FA72F8E7" box="[1391,1455,1881,1905]" italics="true" pageId="6" pageNumber="131">Chasmocranus</emphasis>
longior
</emphasis>
Eigenmann, 1912;
<taxonomicName id="4C1D7A8E08270232FDBCFF17FE72FE84" authority="(Muller &amp; Troschel, 1849)" baseAuthorityName="Muller &amp; Troschel" baseAuthorityYear="1849" family="Heptapteridae" genus="Pimelodella" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="cristata">
<emphasis id="B969DD1F08270232FDBCFF17FCDAFF67" box="[548,775,217,241]" italics="true" pageId="7" pageNumber="132">Pimelodella cristata</emphasis>
(Müller &amp; Troschel, 1849)
</taxonomicName>
;
<taxonomicName id="4C1D7A8E08270232FE23FF34FF60FEA4" authority="Hoedeman, 1961" authorityName="Hoedeman" authorityYear="1961" family="Heptapteridae" genus="Pimelodella" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="geryi">
<emphasis id="B969DD1F08270232FE23FF34FD5CFE84" box="[443,641,250,274]" italics="true" pageId="7" pageNumber="132">Pimelodella geryi</emphasis>
Hoedeman, 1961
</taxonomicName>
;
<taxonomicName id="4C1D7A8E08270232FF51FED4FDCBFEA4" authority="Kner, 1858" authorityName="Kner" authorityYear="1858" box="[201,534,282,306]" family="Pimelodidae" genus="Pimelodus" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="ornatus">
<emphasis id="B969DD1F08270232FF51FED4FE4EFEA4" box="[201,403,282,306]" italics="true" pageId="7" pageNumber="132">Pimelodus ornatus</emphasis>
Kner, 1858
</taxonomicName>
;
<taxonomicName id="4C1D7A8E08270232FDB9FED4FEB3FEC5" authority="(Steindachner, 1882)" baseAuthorityName="Steindachner" baseAuthorityYear="1882" family="Trichomycteridae" genus="Ituglanis" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="amazonicus">
<emphasis id="B969DD1F08270232FDB9FED4FCDBFEA4" box="[545,774,282,306]" italics="true" pageId="7" pageNumber="132">Ituglanis amazonicus</emphasis>
(Steindachner, 1882)
</taxonomicName>
;
<taxonomicName id="4C1D7A8E08270232FEE1FEF5FF60FEE2" authority="Eigenmann, 1912" authorityName="Eigenmann" authorityYear="1912" family="Aspredinidae" genus="Bunocephalus" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="amaurus">
<emphasis id="B969DD1F08270232FEE1FEF5FDA1FEC5" box="[377,636,315,339]" italics="true" pageId="7" pageNumber="132">Bunocephalus amaurus</emphasis>
Eigenmann, 1912
</taxonomicName>
;
<taxonomicName id="4C1D7A8E08270232FF5FFE92FDA5FEE5" authority="(Linnaeus, 1758)" baseAuthorityName="Linnaeus" baseAuthorityYear="1758" box="[199,632,347,372]" family="Callichthyidae" genus="Callichthys" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="callichthys">
<emphasis id="B969DD1F08270232FF5FFE92FE67FEE2" box="[199,442,348,372]" italics="true" pageId="7" pageNumber="132">Callichthys callichthys</emphasis>
(Linnaeus, 1758)
</taxonomicName>
; and
<taxonomicName id="4C1D7A8E08270232FD36FE92FE67FE02" authority="Nijssen, 1970" authorityName="Nijssen" authorityYear="1970" family="Callichthyidae" genus="Corydoras" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="guianensis">
<emphasis id="B969DD1F08270232FD36FE92FEC3FE02" italics="true" pageId="7" pageNumber="132">Corydoras guianensis</emphasis>
Nijssen, 1970
</taxonomicName>
.
</heading>
</paragraph>
<paragraph id="8BA2010D08270232FF32FE53FE53FBF7" blockId="7.[132,776,413,1121]" pageId="7" pageNumber="132">
The feeding habits of
<taxonomicName id="4C1D7A8E08270232FE37FE50FD94FE23" authorityName="Pinna &amp; Keith" authorityYear="2019" box="[431,585,413,437]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="durantoni">
<emphasis id="B969DD1F08270232FE37FE50FD94FE23" box="[431,585,413,437]" italics="true" pageId="7" pageNumber="132">M. durantoni</emphasis>
</taxonomicName>
are unknown at present. Its closest relative,
<taxonomicName id="4C1D7A8E08270232FE35FE70FDC6FE43" authorityName="Bockmann" authorityYear="1994" box="[429,539,446,469]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="asopos">
<emphasis id="B969DD1F08270232FE35FE70FDC6FE43" box="[429,539,446,469]" italics="true" pageId="7" pageNumber="132">M. asopos</emphasis>
</taxonomicName>
, is a carnivore, which feeds on trichopteran, ephemeropteran, chironomid and ceratopogonid larvae and small adult beetles (
<bibRefCitation id="EF8C7CFC08270232FDF0FE31FF1DFDA1" author="ZUANON J. &amp; BOCKMANN F. A. &amp; SAZIMA I." pageId="7" pageNumber="132" pagination="107 - 118" refId="ref7888" refString="ZUANON J., BOCKMANN F. A. &amp; SAZIMA I., 2006. - A remarkable sand-dwelling fish assemblage from central Amazonia, with comments on the evolution of psammophily in South American freshwater fishes. Neotrop Ichthyol., 4: 107 - 118." type="journal article" year="2006">
Zuanon
<emphasis id="B969DD1F08270232FD5FFE31FD25FD81" box="[711,760,511,535]" italics="true" pageId="7" pageNumber="132">et al</emphasis>
., 2006
</bibRefCitation>
). Oral structure and dentition, as well as habitat, suggest that a similar diet is expected for
<taxonomicName id="4C1D7A8E08270232FDB6FD8FFD1DFDCE" authorityName="Pinna &amp; Keith" authorityYear="2019" box="[558,704,576,600]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="durantoni">
<emphasis id="B969DD1F08270232FDB6FD8FFD1DFDCE" box="[558,704,576,600]" italics="true" pageId="7" pageNumber="132">M. durantoni</emphasis>
</taxonomicName>
.
<taxonomicName id="4C1D7A8E08270232FD57FD8FFEF8FDEE" authorityName="Bockmann" authorityYear="1994" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="asopos">
<emphasis id="B969DD1F08270232FD57FD8FFEF8FDEE" italics="true" pageId="7" pageNumber="132">Mastiglanis asopos</emphasis>
</taxonomicName>
is reported to employ a peculiar sit-and-wait foraging tactic: poised on the bottom and supported by a tripod formed by its pelvic and anal fins, the fish spreads its long barbels and the filamentous dorsal and pectoral-fin rays, thus forming a “drift-trap” which helps it to intercept and lunge at passing food items (
<bibRefCitation id="EF8C7CFC08270232FE5AFCCDFD7CFC8D" author="ZUANON J. &amp; BOCKMANN F. A. &amp; SAZIMA I." box="[450,673,771,795]" pageId="7" pageNumber="132" pagination="107 - 118" refId="ref7888" refString="ZUANON J., BOCKMANN F. A. &amp; SAZIMA I., 2006. - A remarkable sand-dwelling fish assemblage from central Amazonia, with comments on the evolution of psammophily in South American freshwater fishes. Neotrop Ichthyol., 4: 107 - 118." type="journal article" year="2006">
Zuanon
<emphasis id="B969DD1F08270232FD87FCCAFD92FC8D" box="[543,591,771,795]" italics="true" pageId="7" pageNumber="132">et al</emphasis>
., 2006
</bibRefCitation>
). In view of the similar morphology of the relevant anatomical parts in
<taxonomicName id="4C1D7A8E08270232FF1CFC8BFEC8FCCA" authorityName="Pinna &amp; Keith" authorityYear="2019" box="[132,277,836,860]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="durantoni">
<emphasis id="B969DD1F08270232FF1CFC8BFEC8FCCA" box="[132,277,836,860]" italics="true" pageId="7" pageNumber="132">M. durantoni</emphasis>
</taxonomicName>
, it is expected to display the same behaviour.
<taxonomicName id="4C1D7A8E08270232FF1CFCABFE8BFCEB" authorityName="Bockmann" authorityYear="1994" box="[132,342,869,893]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="asopos">
<emphasis id="B969DD1F08270232FF1CFCABFE8BFCEB" box="[132,342,869,893]" italics="true" pageId="7" pageNumber="132">Mastiglanis asopos</emphasis>
</taxonomicName>
often co-occurs with
<taxonomicName id="4C1D7A8E08270232FDD9FCABFCDDFCEB" authorityName="Mees &amp; Cala" authorityYear="1989" box="[577,768,869,893]" family="Heptapteridae" genus="Imparfinis" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="pristos">
<emphasis id="B969DD1F08270232FDD9FCABFCDDFCEB" box="[577,768,869,893]" italics="true" pageId="7" pageNumber="132">Imparfinis pristos</emphasis>
</taxonomicName>
,
<taxonomicName id="4C1D7A8E08270232FF1CFC48FEA7FC08" authorityName="Eigenmann" authorityYear="1909" box="[132,378,902,926]" family="Crenuchidae" genus="Characidium" kingdom="Animalia" order="Characiformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="pteroides">
<emphasis id="B969DD1F08270232FF1CFC48FEA7FC08" box="[132,378,902,926]" italics="true" pageId="7" pageNumber="132">Characidium pteroides</emphasis>
</taxonomicName>
,
<taxonomicName id="4C1D7A8E08270232FE1FFC48FD5AFC08" authorityName="de Pinna &amp; Kirovsky" authorityYear="2011" box="[391,647,902,926]" family="Trichomycteridae" genus="Pygidianops" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="amphioxus">
<emphasis id="B969DD1F08270232FE1FFC48FD5AFC08" box="[391,647,902,926]" italics="true" pageId="7" pageNumber="132">Pygidianops amphioxus</emphasis>
</taxonomicName>
and species of
<taxonomicName id="4C1D7A8E08270232FF3BFC68FE4AFC28" authorityName="Ellis" authorityYear="1912" box="[163,407,934,958]" family="Rhamphichthyidae" genus="Gymnorhamphichthys" kingdom="Animalia" order="Gymnotiformes" pageId="7" pageNumber="132" phylum="Chordata" rank="genus">
<emphasis id="B969DD1F08270232FF3BFC68FE4AFC28" box="[163,407,934,958]" italics="true" pageId="7" pageNumber="132">Gymnorhamphichthys</emphasis>
</taxonomicName>
in its psammic habitat. All those associated taxa are absent from the localities of
<taxonomicName id="4C1D7A8E08270232FD0FFC06FF73FC69" authorityName="Pinna &amp; Keith" authorityYear="2019" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="durantoni">
<emphasis id="B969DD1F08270232FD0FFC06FF73FC69" italics="true" pageId="7" pageNumber="132">M. durantoni</emphasis>
</taxonomicName>
and have so far not been recorded from the Maroni system or
<collectingCountry id="F30A419D08270232FF56FBC6FEB6FBB6" box="[206,363,1032,1056]" name="French Guiana" pageId="7" pageNumber="132">French Guiana</collectingCountry>
(
<bibRefCitation id="EF8C7CFC08270232FEE1FBC6FD97FBB6" author="LE BAIL P. Y. &amp; KEITH P. &amp; PLANQUETTE P." box="[377,586,1032,1056]" pageId="7" pageNumber="132" pagination="1 - 307" refId="ref7460" refString="LE BAIL P. Y., KEITH P. &amp; PLANQUETTE P., 2000. - Atlas des Poissons d'Eau douce de Guyane (tome 2) - Siluriformes. Patrimoines Naturels, MNHN, 43 (2): 1 - 307." type="journal article" year="2000">
Le Bail
<emphasis id="B969DD1F08270232FE56FBC7FDDEFBB6" box="[462,515,1032,1056]" italics="true" pageId="7" pageNumber="132">et al.</emphasis>
, 2000
</bibRefCitation>
). So, it seems that
<taxonomicName id="4C1D7A8E08270232FF1CFBE7FECCFBD7" authorityName="Pinna &amp; Keith" authorityYear="2019" box="[132,273,1065,1089]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="7" pageNumber="132" phylum="Chordata" rank="species" species="durantoni">
<emphasis id="B969DD1F08270232FF1CFBE7FECCFBD7" box="[132,273,1065,1089]" italics="true" pageId="7" pageNumber="132">M. durantoni</emphasis>
</taxonomicName>
is the only narrowly specialized psammophilic fish species in its habitat.
</paragraph>
</subSubSection>
</treatment>
</document>
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