96 lines
12 KiB
XML
96 lines
12 KiB
XML
<document id="D9D5AE7DDF0C295F531EEFD96B565DF7" ENCODING="UTF-8" ID-GBIF-Dataset="d8b17ca7-170e-4140-afe5-32ceb9df46f2" ModsDocID="z01614p017" checkinTime="1247241293955" checkinUser="thomas" docAuthor="Melanie L. J. Stiassny & Victor Mamonekene" docDate="2007" docId="923FD0DE2755ECBC88E0D7AA284B8843" docLanguage="en" docName="2007_Stiassny_Mamonekene_gg1.xml" docOrigin="Zootaxa 1614" docSource="http://www.zoobank.org/urn:lsid:zoobank.org:pub:EFFDCA90-CD71-40DA-B0D1-5E2030D2D945" docTitle="Micralestes" docType="key" docVersion="11" lastPageNumber="27" masterDocId="442E50F4B85025CE63355D9A083A38CF" masterDocTitle="Micralestes (Characiformes, Alestidae) of the lower Congo River, with a description of a new species endemic to the lower Congo River rapids in the Democratic Republic of Congo." masterLastPageNumber="29" masterPageNumber="17" pageNumber="24" updateTime="1701314763433" updateUser="plazi">
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<mods:title id="9C64933101799544C0807BDAA2DA1A7B">Micralestes (Characiformes, Alestidae) of the lower Congo River, with a description of a new species endemic to the lower Congo River rapids in the Democratic Republic of Congo.</mods:title>
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<mods:roleTerm id="AB764E10B54F9A6C427A2928CB58B09B">Author</mods:roleTerm>
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<mods:namePart id="3A920B396E54238FBB987651E34DAEA2">Melanie L. J. Stiassny</mods:namePart>
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<mods:roleTerm id="4EB254CC15A1F6E56813CB9BB21D2C0B">Author</mods:roleTerm>
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<mods:namePart id="58B060E91DCC99F0CFEA675791F2D3E4">Victor Mamonekene</mods:namePart>
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<mods:title id="EECB1AE5E0A9960D128C0CCA5DF41077">Zootaxa</mods:title>
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<mods:date id="D27B4DE027B553979FFBF1A142EBEF9A">2007</mods:date>
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<mods:detail id="BCBB92255AE4CD821486D481AB03D5E2" type="volume">
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<mods:number id="704ADB303B3539D9B6EBE08687975F07">1614</mods:number>
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<mods:start id="35E3F5F9CFC8AA6620D99B584101659F">17</mods:start>
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<mods:url id="4EC5278E93AEF03055DF67452B7CAD85">http://www.zoobank.org/urn:lsid:zoobank.org:pub:EFFDCA90-CD71-40DA-B0D1-5E2030D2D945</mods:url>
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<mods:classification id="B8E9264BAC56D6FC3AEF070225866A36">journal article</mods:classification>
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<mods:identifier id="62F23EC6A59CFACCFF68F2C9CD540760" type="Plazi-Custom">z01614p017</mods:identifier>
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<mods:identifier id="1992F9ED3D8B105EE6DC0830EAA46B90" type="ZooBank">EFFDCA90-CD71-40DA-B0D1-5E2030D2D945</mods:identifier>
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<treatment id="923FD0DE2755ECBC88E0D7AA284B8843" ID-DOI="http://doi.org/10.5281/zenodo.6238206" ID-GBIF-Taxon="100123701" ID-Zenodo-Dep="6238206" LSID="urn:lsid:plazi:treatment:923FD0DE2755ECBC88E0D7AA284B8843" httpUri="http://treatment.plazi.org/id/923FD0DE2755ECBC88E0D7AA284B8843" lastPageNumber="27" pageNumber="24">
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<subSubSection id="C93F7BA8569B499DBE2A8DD345E93E7E" type="nomenclature">
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<paragraph id="6C6B1703D307E7D01AE442E6E947D562">
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[[ Genus
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<taxonomicName id="4A9B91BA7208BA6DDC4692555ACE7C33" ID-CoL="5RCD" ID-ENA="206417" LSID-ZBK="urn:lsid:zoobank.org:act:44F15E82-6680-402C-9D33-22C6AD1A4E2F" class="Actinopterygii" family="Alestidae" genus="Micralestes" kingdom="Animalia" lsidName-ZBK="Micralestes Boulenger 1899:86" order="Characiformes" pageNumber="24" phylum="Chordata" rank="genus">Micralestes</taxonomicName>
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]]
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</paragraph>
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</subSubSection>
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<subSubSection id="A81A3F563930E92ADBEEDB9AD75C5C7A" type="discussion">
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<paragraph id="2AF7D35BDF118EB439A6B877EC3C3A0F" pageNumber="24">
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Discussion. Recent collections in the region allow us to document the presence of six
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<taxonomicName id="B781E9DD8B9B059D47E1D7160D1E602E" LSID-ZBK="urn:lsid:zoobank.org:act:44F15E82-6680-402C-9D33-22C6AD1A4E2F" class="Actinopterygii" family="Alestidae" genus="Micralestes" kingdom="Animalia" lsidName-ZBK="Micralestes Boulenger 1899:86" order="Characiformes" pageNumber="24" phylum="Chordata" rank="genus">Micralestes</taxonomicName>
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in the stretch of the lower Congo River from Pool Malebo to Boma near the river’s mouth, and as an aid for field identification we provide here an illustrated key to those species.
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</paragraph>
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</subSubSection>
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<subSubSection id="B2041A659CE290E3CFE8D4FBC8F748A7" type="key">
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<paragraph id="5AB1D22E755F6D0702C4F7C642DEAA22" pageNumber="25">
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1A Teeth with numerous small cusps, first inner row premaxillary tooth with 10-12 cusps (Key Fig. 1A). Inner row tooth pair on dentary usually multicuspid (Key Fig. 3A). Dorsal fin with distinctive black apical patch (Key Fig. 2A) ..................................................................................................................
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<taxonomicName id="38B972B298A496B7ABD2E0CFD3D6DA72" LSID-ZBK="urn:lsid:zoobank.org:act:8EF8299C-6946-4A42-A4DC-08814BC5D16E" class="Actinopterygii" family="Alestidae" genus="Micralestes" kingdom="Animalia" lsidName-ZBK="Micralestes acutidens elongatus Daget 1957:126" order="Characiformes" pageNumber="25" phylum="Chordata" rank="species" species="acutidens">M. acutidens</taxonomicName>
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</paragraph>
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<paragraph id="C9A5718C9B82D4107A139890FA91B1FD" pageNumber="25">1B Teeth with fewer cusps, first inner row premaxillary tooth with 6-8 cusps (Key Fig. 1B). Inner row tooth pair on dentary invariably unicuspid (Key Fig. 3B). Dorsal fin without black apical patch (Key Fig. 2B) ................................................................................................................................................................ 2</paragraph>
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<paragraph id="E9D776B2ACA8CD7075278EE8FE285D40" pageNumber="25">2A 23-28 scales in longitudinal series from opercle to point of caudal flexure (Key Fig. 2A) ........................ 3</paragraph>
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<paragraph id="AB48B5FDBAAD42E2F3076D2FE8BEC95B" pageNumber="26">
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2B 29-33 scales in longitudinal series (Key Fig. 2B) ....................................................................
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<taxonomicName id="8F7501097C94AB11A368D71DBF2398BA" LSID-ZBK="urn:lsid:zoobank.org:act:6F90A0CB-01EA-484E-B281-41FBBDFAF3C1" class="Actinopterygii" family="Alestidae" genus="Micralestes" kingdom="Animalia" lsidName-ZBK="Micralestes lualabae Poll 1967:44, 48" order="Characiformes" pageNumber="26" phylum="Chordata" rank="species" species="lualabae">M. lualabae</taxonomicName>
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</paragraph>
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<paragraph id="59834E68E1CAC8E385DD778A1A62CCCE" pageNumber="26">3A Outer row premaxillary teeth small and tricuspid or quadricuspid (Key Fig. 1A) .....................................4</paragraph>
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<paragraph id="ED8FB326AE880494DFA3F5FD884A91D8" pageNumber="26">
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3B Outer row premaxillary teeth prominent, conical, or weakly shouldered, unicuspids (Key Fig. 1B) .......... ...............................................................................................................................................
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<taxonomicName id="F2430BAA49B895718626B21157E2D9D2" class="Actinopterygii" family="Alestidae" genus="Micralestes" kingdom="Animalia" order="Characiformes" pageNumber="26" phylum="Chordata" rank="species" species="holargyreus">M. holargyreus</taxonomicName>
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</paragraph>
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<paragraph id="2989D0DF0149C926133B61AEB6DBB35C" pageNumber="27">4A Median cusp of symphyseal teeth on dentary less than twice the height of adjacent cusps (Key Fig. 3A). 24-28 scales in longitudinal series from opercle to point of caudal flexure. Adipose fin black distally, pale proximally (Key Fig. 2A) ............................................................................................................................ 5</paragraph>
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<paragraph id="B586D6B749F1F598D80AEF1644EE89CC" pageNumber="27">
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4B Median cusp of symphyseal teeth on dentary elongate and more than twice the height of adjacent cusps (Key Fig. 3B). 23-24 scales in longitudinal series from opercle to point of caudal flexure. Adipose fin black (Key Fig. 2B) ......................................................................................................................
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<taxonomicName id="BEBCF108BF6FE261A3B133C38234BB4A" LSID-ZBK="urn:lsid:zoobank.org:act:A1E37F05-E62F-44FF-85B9-E946DE856C7B" class="Actinopterygii" family="Alestidae" genus="Micralestes" kingdom="Animalia" lsidName-ZBK="Micralestes stormsi Boulenger 1902:265" order="Characiformes" pageNumber="27" phylum="Chordata" rank="species" species="stormsi">M. stormsi</taxonomicName>
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</paragraph>
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<paragraph id="3065BBAEEA33B6D0B2976D23BD6E3201" pageNumber="27">
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5A Relatively gracile, body depth 3.8-4.2 times into standard length. Adipose eyelid restricted posteriorly to orbital margin (Key Fig. 2A) ......................................................................................................
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<taxonomicName id="800203120F8AB98A5B7388196742ED65" LSID-ZBK="urn:lsid:zoobank.org:act:EF94B4E2-E55F-495C-90F7-93006EE231B0" class="Actinopterygii" family="Alestidae" genus="Micralestes" kingdom="Animalia" lsidName-ZBK="Micralestes humilis Boulenger 1899:87" order="Characiformes" pageNumber="27" phylum="Chordata" rank="species" species="humilis">M. humilis</taxonomicName>
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</paragraph>
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<paragraph id="B51B89F5912C6EB54F0AA05CEF6DA890" pageNumber="27">
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5B Relatively deep-bodied, body depth 3.0-3.8 times into standard length. Adipose eyelid extending posterodorsally over postorbital region (Key Fig. 2B) ..............................................................................
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<taxonomicName id="263A299FA150E1C27F9F50AC90E70AAA" class="Actinopterygii" family="Alestidae" genus="Micralestes" kingdom="Animalia" order="Characiformes" pageNumber="27" phylum="Chordata" rank="species" species="schelly">M. schelly</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="A0118953502327C00517B0D2B2000E70" type="discussion">
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<paragraph id="EBDBEA2237C3674A92D21E7ABD678DC5" pageNumber="27">
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Most of these species have widespread distributions encompassing most of the Congo basin and often also much of the rest of Central Africa (Poll, 1967). While we have not undertaken a revision of this genus and related taxa, a task that is ongoing, it is worthy of note that despite intensive collection and surveys in the region
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<taxonomicName id="E9EAC40B4BA2F30454362DE199331E62" class="Actinopterygii" family="Alestidae" genus="Micralestes" kingdom="Animalia" order="Characiformes" pageNumber="27" phylum="Chordata" rank="species" species="holargyreus">Micralestes holargyreus</taxonomicName>
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remains known only from the short stretch of the lower Congo River from Boma to Matadi, and
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<taxonomicName id="B5753174906043B544F15F5420D0AC8E" class="Actinopterygii" family="Alestidae" genus="Micralestes" kingdom="Animalia" order="Characiformes" pageNumber="27" phylum="Chordata" rank="species" species="schelly">M. schelly</taxonomicName>
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is only known from a single site in the vicinity of Inga. These two taxa are considered here to be lower Congo River endemics.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |