196 lines
24 KiB
XML
196 lines
24 KiB
XML
<document id="1D62907E8ED3A6DA7CCF75B34CBE6280" ID-DOI="10.5281/zenodo.13229237" ID-ISSN="2345-7600" ID-Zenodo-Dep="13229237" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1722894100453" checkinUser="felipe" docAuthor="Ng, Heok Hee" docDate="2003" docId="56766B4A333DFF97FC33DB403601F558" docLanguage="en" docName="RafflesBZool.51.2.393-398.pdf" docOrigin="Raffles Bulletin of Zoology 51 (2)" docStyle="DocumentStyle:19380AF0FBA5B2F218DD253A34ABE57F.5:RafflesBZool.2003-2005.journal_article" docStyleId="19380AF0FBA5B2F218DD253A34ABE57F" docStyleName="RafflesBZool.2003-2005.journal_article" docStyleVersion="5" docTitle="Clarias nigricans Ng, 2003, new species" docType="treatment" docVersion="3" lastPageNumber="396" masterDocId="AA4F1332333DFF94FFE4DD66371CF420" masterDocTitle="Clarias Nigricans, A New Species Of Clariid Catfish (Teleostei: Siluriformes) From Eastern Borneo" masterLastPageNumber="398" masterPageNumber="393" pageNumber="393" updateTime="1722902675787" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
|
||
<mods:mods id="060D2E49B7306D012D781E76D0DB97D9" xmlns:mods="http://www.loc.gov/mods/v3">
|
||
<mods:titleInfo id="21D11473F6B1453832095C27EDB6A7C6">
|
||
<mods:title id="616788E3CC8EE03E8C4D8467F09CFE3D">Clarias Nigricans, A New Species Of Clariid Catfish (Teleostei: Siluriformes) From Eastern Borneo</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:name id="0FED62C5E79CB62B7FFF3E9F303AAD1E" type="personal">
|
||
<mods:role id="DF883BC51063A2A198B9F6CE850DA81B">
|
||
<mods:roleTerm id="24A089F5A7847BF6C9CBC9B55DD9148E">Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart id="E957018BF959518518A6D2179D19A30B">Ng, Heok Hee</mods:namePart>
|
||
</mods:name>
|
||
<mods:typeOfResource id="630D98D121EA8AA9E6D82E2C4AB409D4">text</mods:typeOfResource>
|
||
<mods:relatedItem id="FBF5AC02BE9D1523DCBB2B808B70C083" type="host">
|
||
<mods:titleInfo id="932609F435412ECDAA57C6D23DE90E85">
|
||
<mods:title id="CD9A25BAEA571BF5502714B713175740">Raffles Bulletin of Zoology</mods:title>
|
||
</mods:titleInfo>
|
||
<mods:part id="530A44B05AB748B565AB3712F6925002">
|
||
<mods:date id="99AC438EAEFEE926DFFF3AA321267507">2003</mods:date>
|
||
<mods:detail id="741F7877095829502EE8973C3E73A441" type="volume">
|
||
<mods:number id="ED274B2780956316230E1469A49D3DB2">51</mods:number>
|
||
</mods:detail>
|
||
<mods:detail id="1CF957AF75A09DA2F4498386BB488A6C" type="issue">
|
||
<mods:number id="8C3C5367B2C8CEF8EB3C17A4556A74A0">2</mods:number>
|
||
</mods:detail>
|
||
<mods:extent id="68FD76FD8E6AF5C2A5B222B5EFB5CC4D" unit="page">
|
||
<mods:start id="4A3BE3D11CF12679A967A6CC7B8B6D67">393</mods:start>
|
||
<mods:end id="7ECD560558441474FD3379879CDD9D97">398</mods:end>
|
||
</mods:extent>
|
||
</mods:part>
|
||
</mods:relatedItem>
|
||
<mods:classification id="ECBF77E50500748ACCCEAED70753E0E8">journal article</mods:classification>
|
||
<mods:identifier id="5676569F082CD453AF929FCAF59D55FD" type="DOI">10.5281/zenodo.13229237</mods:identifier>
|
||
<mods:identifier id="7322CB67D241262F06FB29088BDB63AF" type="ISSN">2345-7600</mods:identifier>
|
||
<mods:identifier id="A865277B7EA84F950DD1AC26546A2320" type="Zenodo-Dep">13229237</mods:identifier>
|
||
</mods:mods>
|
||
<treatment id="56766B4A333DFF97FC33DB403601F558" ID-DOI="http://doi.org/10.5281/zenodo.13229346" ID-Zenodo-Dep="13229346" LSID="urn:lsid:plazi:treatment:56766B4A333DFF97FC33DB403601F558" httpUri="http://treatment.plazi.org/id/56766B4A333DFF97FC33DB403601F558" lastPageId="3" lastPageNumber="396" pageId="0" pageNumber="393">
|
||
<subSubSection id="96C589D7333DFF94FC33DB403232F21E" box="[983,1326,1574,1598]" pageId="0" pageNumber="393" type="nomenclature">
|
||
<paragraph id="DE60DA5C333DFF94FC33DB403232F21E" blockId="0.[983,1326,1574,1630]" box="[983,1326,1574,1598]" pageId="0" pageNumber="393">
|
||
<heading id="85286D30333DFF94FC33DB403232F21E" bold="true" box="[983,1326,1574,1598]" centered="true" fontSize="10" level="2" pageId="0" pageNumber="393" reason="2">
|
||
<emphasis id="ECAB064E333DFF94FC33DB403232F21E" bold="true" box="[983,1326,1574,1598]" pageId="0" pageNumber="393">
|
||
<taxonomicName id="19DFA1DF333DFF94FC33DB403385F21E" ID-CoL="VRDY" authorityName="Ng" authorityYear="2003" box="[983,1177,1574,1598]" family="Clariidae" genus="Clarias" kingdom="Animalia" order="Siluriformes" pageId="0" pageNumber="393" phylum="Chordata" rank="species" species="nigricans" status="sp. nov.">
|
||
<emphasis id="ECAB064E333DFF94FC33DB403385F21E" bold="true" box="[983,1177,1574,1598]" italics="true" pageId="0" pageNumber="393">Clarias nigricans</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicNameLabel id="F798BB35333DFF94FB4CDB403232F21E" box="[1192,1326,1574,1598]" pageId="0" pageNumber="393" rank="species">new species</taxonomicNameLabel>
|
||
</emphasis>
|
||
</heading>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="96C589D7333DFF94FBD6DB2134E0F295" pageId="0" pageNumber="393" type="description">
|
||
<paragraph id="DE60DA5C333DFF94FBD6DB2133CFF27E" blockId="0.[983,1326,1574,1630]" box="[1074,1235,1607,1630]" pageId="0" pageNumber="393">
|
||
(
|
||
<figureCitation id="46E4C6D9333DFF94FBDEDB213399F27E" box="[1082,1157,1607,1630]" captionStart="Fig" captionStartId="1.[114,150,2054,2075]" captionTargetBox="[113,752,1616,2035]" captionTargetId="figure-434@1.[113,752,1616,2035]" captionTargetPageId="1" captionText="Fig. 1. Clarias nigricans, paratype, 197.4 mm SL mm SL, ZRC 45590, Borneo: Kalimantan Timur, Samarinda." figureDoi="http://doi.org/10.5281/zenodo.13229239" httpUri="https://zenodo.org/record/13229239/files/figure.png" pageId="0" pageNumber="393">Figs. 1</figureCitation>
|
||
,
|
||
<figureCitation id="46E4C6D9333DFF94FB71DB2133B8F27E" box="[1173,1188,1607,1630]" captionStart="Fig" captionStartId="2.[136,172,2063,2084]" captionTargetBox="[175,1434,1192,1986]" captionTargetId="figure-425@2.[165,1451,1183,2002]" captionTargetPageId="2" captionText="Fig. 2. Dorsal views of heads of: a. Clarias nigricans, ZRC 45590, 197.4 mm SL; b. C. nieuhofii, ZRC 38978, 202.5 mm SL. Scale bar represents 10 mm." figureDoi="http://doi.org/10.5281/zenodo.13229241" httpUri="https://zenodo.org/record/13229241/files/figure.png" pageId="0" pageNumber="393">2</figureCitation>
|
||
,
|
||
<figureCitation id="46E4C6D9333DFF94FB55DB2133D7F27E" box="[1201,1227,1607,1630]" captionStart="Fig" captionStartId="3.[113,149,2093,2114]" captionTargetBox="[250,1307,1276,2043]" captionTargetId="figure-521@3.[243,1320,1263,2061]" captionTargetPageId="3" captionText="Fig. 3. Scatterplots for C. nigricans and C. nieuhofii of head width (HW) against standard length (SL)." figureDoi="http://doi.org/10.5281/zenodo.13229243" httpUri="https://zenodo.org/record/13229243/files/figure.png" pageId="0" pageNumber="393">3a</figureCitation>
|
||
)
|
||
</paragraph>
|
||
<paragraph id="DE60DA5C333DFF94FCA7DBE534E0F295" blockId="0.[835,1474,1667,1717]" pageId="0" pageNumber="393">
|
||
<taxonomicName id="19DFA1DF333DFF94FCA7DBE534FEF2B8" authorityName="Valenciennes" authorityYear="1840" box="[835,994,1667,1688]" family="Clariidae" genus="Clarias" kingdom="Animalia" order="Siluriformes" pageId="0" pageNumber="393" phylum="Chordata" rank="species" species="nieuhofi">
|
||
<emphasis id="ECAB064E333DFF94FCA7DBE534FEF2B8" box="[835,994,1667,1688]" italics="true" pageId="0" pageNumber="393">Clarias nieuhofi</emphasis>
|
||
</taxonomicName>
|
||
– Weber & de Beaufort, 1913: 189 (in part) (non Valenciennes).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="96C589D7333DFF94FCA7DBBF32B4F3BB" pageId="0" pageNumber="393" type="materials_examined">
|
||
<paragraph id="DE60DA5C333DFF94FCA7DBBF3352F308" blockId="0.[835,1474,1753,1832]" pageId="0" pageNumber="393">
|
||
<emphasis id="ECAB064E333DFF94FCA7DBBF333DF2CE" bold="true" box="[835,1057,1753,1774]" italics="true" pageId="0" pageNumber="393">Material examined. –</emphasis>
|
||
<materialsCitation id="6EB7D001333DFF94FBCFDBBC3352F308" collectingDate="1999-11-07" collectionCode="MZB" collectorName="Borneo & Kalimantan Timur & Samarinda & H. H. Tan & D. Wowor" pageId="0" pageNumber="393" specimenCount="1" typeStatus="holotype">
|
||
<typeStatus id="016464FE333DFF94FBCFDBBC339AF2CF" box="[1067,1158,1754,1775]" pageId="0" pageNumber="393" type="holotype">Holotype</typeStatus>
|
||
–
|
||
<collectionCode id="B8CE4299333DFF94FB41DBBC33C6F2CF" box="[1189,1242,1754,1775]" country="Indonesia" httpUri="http://grbio.org/cool/b9gz-izvg" name="Museum Zoologicum Bogoriense" pageId="0" pageNumber="393" type="Museum">MZB</collectionCode>
|
||
<quantity id="192777B9333DFF94FB07DBBC328BF2CF" box="[1251,1431,1754,1775]" metricMagnitude="4" metricUnit="m" metricValue="1.07053075" pageId="0" pageNumber="393" unit="mm" value="1.07053075E7">10705, 307.5 mm</quantity>
|
||
SL,
|
||
<collectorName id="732ABF8A333DFF94FCA7DB903493F32B" box="[835,911,1782,1803]" pageId="0" pageNumber="393">Borneo</collectorName>
|
||
:
|
||
<collectorName id="732ABF8A333DFF94FC7CDB903353F32B" box="[920,1103,1782,1803]" pageId="0" pageNumber="393">Kalimantan Timur</collectorName>
|
||
, market in
|
||
<collectorName id="732ABF8A333DFF94FB58DB90323BF32B" box="[1212,1319,1782,1803]" pageId="0" pageNumber="393">Samarinda</collectorName>
|
||
, coll.
|
||
<collectorName id="732ABF8A333DFF94FA85DB9032DEF32B" box="[1377,1474,1782,1803]" pageId="0" pageNumber="393">H. H. Tan</collectorName>
|
||
&
|
||
<collectorName id="732ABF8A333DFF94FCB9DA7534D4F308" box="[861,968,1811,1832]" pageId="0" pageNumber="393">D. Wowor</collectorName>
|
||
,
|
||
<date id="AA61FC9C333DFF94FC37DA753357F308" box="[979,1099,1811,1832]" pageId="0" pageNumber="393" value="1999-11-07">
|
||
<collectingDate id="BA250574333DFF94FC37DA753357F308" box="[979,1099,1811,1832]" pageId="0" pageNumber="393" value="1999-11-07">7 Nov.1999</collectingDate>
|
||
</date>
|
||
.
|
||
</materialsCitation>
|
||
</paragraph>
|
||
<paragraph id="DE60DA5C333DFF94FCA7DA2B32B4F3BB" blockId="0.[835,1475,1869,1947]" pageId="0" pageNumber="393">
|
||
<materialsCitation id="6EB7D001333DFF94FCA7DA2B32A2F35F" collectingDate="1909-05-20" collectionCode="ZMA" collectorName="Borneo & Kalimantan Timur & Samarinda & H. J. Lorentz" pageId="0" pageNumber="393" specimenCode="ZMA 121.631" specimenCount="5" typeStatus="paratype">
|
||
<typeStatus id="016464FE333DFF94FCA7DA2B34BEF342" box="[835,930,1869,1890]" pageId="0" pageNumber="393" type="paratype">Paratypes</typeStatus>
|
||
–
|
||
<specimenCount id="C8D911D5333DFF94FC5ADA2B34EEF342" box="[958,1010,1869,1890]" count="5" pageId="0" pageNumber="393" type="generic">5 ex.</specimenCount>
|
||
, 232.4–305.0 mm SL,
|
||
<specimenCode id="8E797227333DFF94FB3CDA2B3274F342" box="[1240,1384,1869,1890]" collectionCode="ZMA" country="Netherlands" httpUri="http://grbio.org/cool/a65z-wv6r" name="Universiteit van Amsterdam, Zoologisch Museum" pageId="0" pageNumber="393">ZMA 121.631</specimenCode>
|
||
,
|
||
<collectorName id="732ABF8A333DFF94FA90DA2B32DCF342" box="[1396,1472,1869,1890]" pageId="0" pageNumber="393">Borneo</collectorName>
|
||
:
|
||
<collectorName id="732ABF8A333DFF94FCA7DA0C34E7F35F" box="[835,1019,1898,1919]" pageId="0" pageNumber="393">Kalimantan Timur</collectorName>
|
||
,
|
||
<collectorName id="732ABF8A333DFF94FBE1DA0C336CF35F" box="[1029,1136,1898,1919]" pageId="0" pageNumber="393">Samarinda</collectorName>
|
||
, coll.
|
||
<collectorName id="732ABF8A333DFF94FB48DA0C3232F35F" box="[1196,1326,1898,1919]" pageId="0" pageNumber="393">H. J. Lorentz</collectorName>
|
||
,
|
||
<date id="AA61FC9C333DFF94FADDDA0C32A2F35F" box="[1337,1470,1898,1919]" pageId="0" pageNumber="393" value="1909-05-20">
|
||
<collectingDate id="BA250574333DFF94FADDDA0C32A2F35F" box="[1337,1470,1898,1919]" pageId="0" pageNumber="393" value="1909-05-20">20 May.1909</collectingDate>
|
||
</date>
|
||
</materialsCitation>
|
||
;
|
||
<materialsCitation id="6EB7D001333DFF94FCA7DAE032B8F3BB" box="[835,1444,1926,1947]" collectingDate="1999-11-07" collectionCode="ZRC" collectorName="Borneo & Kalimantan Timur & Samarinda & H. H. Tan & D. Wowor" pageId="0" pageNumber="393" specimenCode="ZRC 45590" specimenCount="2" typeStatus="paratype">
|
||
<specimenCount id="C8D911D5333DFF94FCA7DAE0346AF3BB" box="[835,886,1926,1947]" count="2" pageId="0" pageNumber="393" type="generic">2 ex.</specimenCount>
|
||
,
|
||
<quantity id="192777B9333DFF94FC66DAE03335F3BB" box="[898,1065,1926,1947]" metricMagnitude="-1" metricUnit="m" metricValue="2.5625" metricValueMax="3.151" metricValueMin="1.974" pageId="0" pageNumber="393" unit="mm" value="256.25" valueMax="315.1" valueMin="197.4">197.4–315.1 mm</quantity>
|
||
SL,
|
||
<specimenCode id="8E797227333DFF94FBBEDAE033CCF3BB" box="[1114,1232,1926,1947]" collectionCode="ZRC" country="Singapore" httpUri="http://grbio.org/cool/16z4-1tbx" name="Zoological Reference Collection, National University of Singapore" pageId="0" pageNumber="393">ZRC 45590</specimenCode>
|
||
, data as for holotype
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="96C589D7333DFF95FCA7DAA635B1F199" lastPageId="1" lastPageNumber="394" pageId="0" pageNumber="393" type="diagnosis">
|
||
<paragraph id="DE60DA5C333DFF95FCA7DAA635B1F199" blockId="0.[835,1474,1984,2103]" lastBlockId="1.[113,753,1346,1465]" lastPageId="1" lastPageNumber="394" pageId="0" pageNumber="393">
|
||
<emphasis id="ECAB064E333DFF94FCA7DAA63386F3F7" box="[835,1178,1984,2008]" italics="true" pageId="0" pageNumber="393">
|
||
<emphasis id="ECAB064E333DFF94FCA7DAA634D3F3F8" bold="true" box="[835,975,1984,2008]" italics="true" pageId="0" pageNumber="393">Diagnosis. –</emphasis>
|
||
<taxonomicName id="19DFA1DF333DFF94FC3DDAA63386F3F7" authorityName="Ng" authorityYear="2003" box="[985,1178,1984,2007]" family="Clariidae" genus="Clarias" kingdom="Animalia" order="Siluriformes" pageId="0" pageNumber="393" phylum="Chordata" rank="species" species="nigricans">Clarias nigricans</taxonomicName>
|
||
</emphasis>
|
||
can be distinguished from congeners of the
|
||
<taxonomicName id="19DFA1DF333DFF94FBEFDA86338DF3D7" authorityName="Valenciennes" authorityYear="1840" box="[1035,1169,2016,2039]" family="Clariidae" genus="Clarias" kingdom="Animalia" order="Siluriformes" pageId="0" pageNumber="393" phylum="Chordata" rank="species" species="nieuhofii">
|
||
<emphasis id="ECAB064E333DFF94FBEFDA86338DF3D7" box="[1035,1169,2016,2039]" italics="true" pageId="0" pageNumber="393">C. nieuhofii</emphasis>
|
||
</taxonomicName>
|
||
species group in having a narrow snout (with an egg-shaped head when viewed dorsally), dark violet grey coloration with small white spots on flanks, a narrow head (11.7–12.3% SL), a relatively large distance between the tip of the occipital process and the base of the first dorsal fin ray (8.1–9.8% SL), and few large serrations on the anterior edge of the pectoral spine.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="96C589D7333CFF96FF95D88433FFF077" lastPageId="2" lastPageNumber="395" pageId="1" pageNumber="394" type="description">
|
||
<paragraph id="DE60DA5C333CFF95FF95D884333AF2B9" blockId="1.[113,752,1506,1561]" lastBlockId="1.[813,1452,1346,1689]" pageId="1" pageNumber="394">
|
||
<emphasis id="ECAB064E333CFF95FF95D8843614F1DA" bold="true" box="[113,264,1506,1530]" italics="true" pageId="1" pageNumber="394">Description. –</emphasis>
|
||
Head depressed; dorsal profile slightly convex and ventral profile almost straight. Bony elements of dorsal surface of head covered with thick skin; bones not readily visible, but sutures sometimes evident. Front fontanel short and squat (“sole-shaped” of
|
||
<bibRefCitation id="BA4EA7AD333CFF95FB97D8E4320BF1B9" author="Teugels, G" box="[1139,1303,1410,1433]" pageId="1" pageNumber="394" pagination="1 - 199" refId="ref3482" refString="Teugels, G. G., 1986. A systematic revision of the African species of the genus Clarias (Pisces; Clariidae). Annales. Musee Royal de l'Afrique Centrale (Sciences Zoologiques), 247: 1 - 199." type="journal article" year="1986">Teugels, 1986</bibRefCitation>
|
||
); anterior tip reaching just posterior to line through posterior orbital margins. Occipital process acutely rounded. Eye ovoid, horizontal axis longest, subcutaneous; located dorsolaterally on head. Gill openings narrow, extending from dorsalmost point of pectoral-fin base to isthmus. Gill membranes free from but united to each other across isthmus, with 9 (n=7) or 10 (n=1) branchiostegal rays. First branchial arch with 3+15 (n=2) gill rakers.
|
||
</paragraph>
|
||
<paragraph id="DE60DA5C333CFF95FCC9DBA434A8F3D9" blockId="1.[813,1453,1730,2041]" pageId="1" pageNumber="394">Mouth subterminal, with fleshy, plicate lips. Oral teeth small and in irregular rows on all tooth-bearing surfaces. Premaxillary tooth band rectangular, with median notch on posterior edge. Dentary tooth band much narrower than premaxillary tooth band at symphysis, tapering laterally. Vomerine tooth band unpaired, continuous across midline; crescentic and smoothly arched along anterior margin, posterior margin with a median posteriorly-directed process. Premaxillary and dentary teeth viliform, vomerine teeth subgranular.</paragraph>
|
||
<caption id="8AA08AD4333CFF95FF96D560355AFC18" ID-DOI="http://doi.org/10.5281/zenodo.13229239" ID-Zenodo-Dep="13229239" httpUri="https://zenodo.org/record/13229239/files/figure.png" pageId="1" pageNumber="394" startId="1.[114,150,2054,2075]" targetBox="[113,752,1616,2035]" targetPageId="1" targetType="figure">
|
||
<paragraph id="DE60DA5C333CFF95FF96D560355AFC18" blockId="1.[114,752,2054,2104]" pageId="1" pageNumber="394">
|
||
Fig. 1.
|
||
<taxonomicName id="19DFA1DF333CFF95FF5ED561367BFC3C" authorityName="Ng" authorityYear="2003" box="[186,359,2055,2076]" family="Clariidae" genus="Clarias" kingdom="Animalia" order="Siluriformes" pageId="1" pageNumber="394" phylum="Chordata" rank="species" species="nigricans">
|
||
<emphasis id="ECAB064E333CFF95FF5ED561367BFC3C" box="[186,359,2055,2076]" italics="true" pageId="1" pageNumber="394">Clarias nigricans</emphasis>
|
||
</taxonomicName>
|
||
, paratype, 197.4 mm SL mm SL, ZRC 45590, Borneo: Kalimantan Timur, Samarinda.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="DE60DA5C333CFF96FCC9D54436C3F5B7" blockId="1.[813,1451,2082,2105]" lastBlockId="2.[136,775,192,407]" lastPageId="2" lastPageNumber="395" pageId="1" pageNumber="394">Barbels in four pairs; long and slender with thick fleshy bases. Maxillary barbel extending nearly to base of first dorsal-fin ray. Nasal barbel, extending nearly to tip of occipital process. Inner mandibular-barbel origin close to midline; barbel thicker and longer than nasal barbel and extending to base of pectoral spine. Outer mandibular barbel originates posterolateral of inner mandibular barbel, extending to tip of pectoral fin.</paragraph>
|
||
<paragraph id="DE60DA5C333FFF96FF6CDCA637EDF657" blockId="2.[136,775,448,631]" pageId="2" pageNumber="395">Body cylindrical, becoming compressed towards caudal peduncle. Dorsal profile rising gently from tip of snout to origin of dorsal fin and thereafter almost horizontal to end of caudal peduncle. Ventral profile slightly convex to middle of head and thereafter almost horizontal to end of caudal peduncle.</paragraph>
|
||
<paragraph id="DE60DA5C333FFF96FF6CDFC635C3F737" blockId="2.[136,775,672,791]" pageId="2" pageNumber="395">Skin smooth. Lateral line complete and midlateral in position. Vertebrae 21+55=76 (n=1), 21+57=78 (n=1), 22+56=78 (n=1), 22+58=80 (n=1), 24+57=81 (n=1), 23+59=82 (n=1), 24+58=82 (n=1) or 23+60=83 (n=1).</paragraph>
|
||
<paragraph id="DE60DA5C333FFF96FF6CDE2636A3F7D7" blockId="2.[136,776,832,1015]" pageId="2" pageNumber="395">Dorsal fin with long base, spanning posterior three-quarters of body; with 92 (n=1), 93 (n=1), 94 (n=3), 95 (n=1) or 97 (n=2) rays covered by thick layer of skin and without spine. Dorsal-fin margin straight, parallel to dorsal edge of body. Dorsal fin confluent with caudal fin along most of posteriormost dorsal-fin ray.</paragraph>
|
||
<paragraph id="DE60DA5C333FFF96FF6CD94633FBF537" blockId="2.[136,775,1056,1111]" lastBlockId="2.[835,1474,192,279]" pageId="2" pageNumber="395">Pectoral fin with small spine, sharply pointed at tip, and 7,i (n=8) rays. Proximal three-quarters of anterior spine margin with large serrations; distal quarter of anterior spine margin and posterior spine margin smooth. Pectoral-fin margin straight anteriorly, convex posteriorly.</paragraph>
|
||
<paragraph id="DE60DA5C333FFF96FCA7DC263274F597" blockId="2.[835,1475,320,439]" pageId="2" pageNumber="395">Pelvic-fin origin at anterior third of body, with i,5 (n=8) rays and convex margin; tip of adpressed fin reaching base of first few anal-fin rays. Anus and urogenital openings located at vertical through middle of adpressed pelvic fin.</paragraph>
|
||
<paragraph id="DE60DA5C333FFF96FCA7DC863265F677" blockId="2.[835,1474,480,599]" pageId="2" pageNumber="395">Anal fin with long base and 80 (n=2), 82 (n=2), 84 (n=3) or 86 (n=1) rays covered by thick layer of skin; margin straight and parallel to ventral edge of body. Anal fin confluent with caudal fin along most of posteriormost anal-fin ray.</paragraph>
|
||
<paragraph id="DE60DA5C333FFF96FCA7DFE63243F697" blockId="2.[835,1474,640,695]" pageId="2" pageNumber="395">Caudal peduncle short. Caudal fin rounded, with i,5,5,i (n=3), i,6,5,i (n=4) or i,6,6,i (n=1) principal rays.</paragraph>
|
||
<paragraph id="DE60DA5C333FFF96FCA7DF8633AEF6D7" blockId="2.[835,1202,736,759]" box="[835,1202,736,759]" pageId="2" pageNumber="395">Morphometric data as in Table 1.</paragraph>
|
||
<paragraph id="DE60DA5C333FFF96FCA7DE4633FFF077" blockId="2.[835,1475,800,1111]" pageId="2" pageNumber="395">
|
||
<emphasis id="ECAB064E333FFF96FCA7DE4634B7F718" bold="true" box="[835,939,800,824]" italics="true" pageId="2" pageNumber="395">Colour. –</emphasis>
|
||
Dorsal and lateral surfaces of head and body dark violet grey, fading to pale grey on ventral surfaces. Thirteen to fourteen vertical rows of two to five minute white spots present, subtended ventrally with an irregular row of minute white spots running just below lateral line. Dorsal and caudal fins dark violet grey with very thin hyaline distal margin. Anal fin light grey, with thin hyaline distal margin. Pectoral-fin rays dark violet grey, with hyaline interradial membranes. Pelvic fins hyaline. Barbels and pectoral spines dark violet grey dorsally and light grey ventrally.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<caption id="8AA08AD4333FFF96FF6CD5693623FC61" ID-DOI="http://doi.org/10.5281/zenodo.13229241" ID-Zenodo-Dep="13229241" httpUri="https://zenodo.org/record/13229241/files/figure.png" pageId="2" pageNumber="395" startId="2.[136,172,2063,2084]" targetBox="[175,1434,1192,1986]" targetPageId="2" targetType="figure">
|
||
<paragraph id="DE60DA5C333FFF96FF6CD5693623FC61" blockId="2.[136,1474,2063,2113]" pageId="2" pageNumber="395">
|
||
Fig. 2. Dorsal views of heads of: a.
|
||
<taxonomicName id="19DFA1DF333FFF96FE0ED57635CFFC04" authority=", ZRC" authorityName="ZRC" box="[490,723,2063,2085]" family="Clariidae" genus="Clarias" kingdom="Animalia" order="Siluriformes" pageId="2" pageNumber="395" phylum="Chordata" rank="species" species="nigricans">
|
||
<emphasis id="ECAB064E333FFF96FE0ED576358AFC05" box="[490,662,2064,2085]" italics="true" pageId="2" pageNumber="395">Clarias nigricans</emphasis>
|
||
, ZRC
|
||
</taxonomicName>
|
||
45590, 197.4 mm SL; b.
|
||
<taxonomicName id="19DFA1DF333FFF96FC36D576339EFC04" authority=", ZRC" authorityName="ZRC" box="[978,1154,2063,2085]" family="Clariidae" genus="Clarias" kingdom="Animalia" order="Siluriformes" pageId="2" pageNumber="395" phylum="Chordata" rank="species" species="nieuhofii">
|
||
<emphasis id="ECAB064E333FFF96FC36D576335AFC05" box="[978,1094,2064,2085]" italics="true" pageId="2" pageNumber="395">C. nieuhofii</emphasis>
|
||
, ZRC
|
||
</taxonomicName>
|
||
38978, 202.5 mm SL. Scale bar represents 10 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="96C589D7333EFF97FF95DDA737DBF538" pageId="3" pageNumber="396" type="etymology">
|
||
<paragraph id="DE60DA5C333EFF97FF95DDA737DBF538" blockId="3.[113,752,193,280]" pageId="3" pageNumber="396">
|
||
<emphasis id="ECAB064E333EFF97FF95DDA73613F4F9" bold="true" box="[113,271,193,217]" italics="true" pageId="3" pageNumber="396">Etymology. –</emphasis>
|
||
The Latin adjective nigricans, meaning blackish. In reference to the relatively dark colour of this species.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="96C589D7333EFF97FF95DC273601F558" pageId="3" pageNumber="396" type="distribution">
|
||
<paragraph id="DE60DA5C333EFF97FF95DC273601F558" blockId="3.[113,752,321,376]" pageId="3" pageNumber="396">
|
||
<emphasis id="ECAB064E333EFF97FF95DC27360EF579" bold="true" box="[113,274,321,345]" italics="true" pageId="3" pageNumber="396">Distribution. –</emphasis>
|
||
Known only from the Mahakam drainage in eastern Borneo.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |