189 lines
27 KiB
XML
189 lines
27 KiB
XML
<document id="BBDDF6803C23D452C46BF4783C281875" ENCODING="UTF-8" ID-GBIF-Dataset="6f0e546a-838c-4bef-8f1b-50bd049ca684" ModsDocID="z00733p001" checkinTime="1246969309213" checkinUser="thomas" docAuthor="Heok Hee Ng & Darrell J. Siebert" docDate="2004" docId="E25B05A08F0445C8C88A9457187820B8" docLanguage="en" docName="2004_Ng_Siebert_gg2.xml" docOrigin="Zootaxa 733" docSource="http://www.zoobank.org/urn:lsid:zoobank.org:pub:1A4A9BB0-FF54-43A9-B7E9-36D14E064678" docTitle="Akysis meridionalis Ng & Siebert, 2004, sp. nov." docType="treatment" docVersion="13" lastPageNumber="6" masterDocId="17F975BAC01AD2C976DB09620A4D0CC6" masterDocTitle="A new species of the catfish genus Akysis (Siluriformes: Akysidae) from southern Borneo." masterLastPageNumber="8" masterPageNumber="1" pageNumber="2" updateTime="1701314052568" updateUser="plazi">
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<mods:title id="9C1EAEDC1EC58A8244A1F5BDE52248B1">A new species of the catfish genus Akysis (Siluriformes: Akysidae) from southern Borneo.</mods:title>
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<mods:namePart id="1BFBD4FB9D315D690232010626D0010D">Heok Hee Ng</mods:namePart>
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<mods:name id="561B98B9E8A3FE9880B85EE59A60C717" type="personal">
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<mods:roleTerm id="2F193B532965D98DEA06D255EFA387EA">Author</mods:roleTerm>
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<mods:namePart id="8D8499ABA4657D0E6B0D55935EE9A437">Darrell J. Siebert</mods:namePart>
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<mods:title id="0265CBA7FA5E43A87559DA9596B21870">Zootaxa</mods:title>
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<mods:part id="862D8F73C49FA99FFAA7FD2EDC2F85C2">
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<mods:date id="D44020893AD41D3639ED0B818FC931AA">2004</mods:date>
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<mods:number id="BB38DCA27DE512A6AF5C3D3FF7831B50">733</mods:number>
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<mods:location id="4477A05279D211CDF9915673D02B9880">
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<mods:url id="F335C9FD8DAF16B976E8987B5EDFC0F5">http://www.zoobank.org/urn:lsid:zoobank.org:pub:1A4A9BB0-FF54-43A9-B7E9-36D14E064678</mods:url>
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<mods:classification id="A1168A35E621D5AD8794047731276225">journal article</mods:classification>
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<treatment id="E25B05A08F0445C8C88A9457187820B8" ID-DOI="http://doi.org/10.5281/zenodo.6269364" ID-GBIF-Taxon="100124884" ID-Zenodo-Dep="6269364" LSID="urn:lsid:plazi:treatment:E25B05A08F0445C8C88A9457187820B8" httpUri="http://treatment.plazi.org/id/E25B05A08F0445C8C88A9457187820B8" lastPageNumber="6" pageNumber="2">
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<subSubSection id="A56E763FF630D3A7CAF8DE308E698E14" type="nomenclature">
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<paragraph id="105CE779AC9A6FA00BB0111245DEBE5E" pageNumber="2">
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<taxonomicName id="1CB800B5189C598AC95103CEF580F568" ID-CoL="5TV8M" LSID-ZBK="urn:lsid:zoobank.org:act:2E3DDD80-E574-4E12-BC75-AA8709B93039" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis meridionalis Ng & Siebert 2004:2" order="Siluriformes" pageNumber="2" phylum="Chordata" rank="species" species="meridionalis">Akysis meridionalis</taxonomicName>
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<taxonomicNameLabel id="C138BB96692DD8201C1D00E84F2D22DA" rank="species">sp. nov.</taxonomicNameLabel>
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(Fig. 1)
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</paragraph>
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<paragraph id="0A52538D900B2D653D73181BEDAA1E34" pageNumber="2">
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Type material.
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<materialsCitation id="C3E07E9D4A2DB37FEEE52BA0471E25C4" ID-GBIF-Occurrence="1058480938" collectingDate="1992-07-18" collectionCode="MZB" collectorName="D. J. Siebert, A. Tjakrawidjaja, O. Crimmen" country="Indonesia" latitude="-0.36643332" location="Borneo, Barito River drainage, Sungai Laung at Dessa Maruwei" longitude="114.73505" specimenCode="MZB 6102" stateProvince="Kalimantan Tengah" typeStatus="Holotype">
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<typeStatus id="20E3A45C738E27090DE10E1D816B458E">Holotype</typeStatus>
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:
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<specimenCode id="0E500819234D63D4A0EA465245588B2A">
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<collectionCode id="1DF81B454D1F1920EB6B4D71ED882B95" collectionName="MZB">MZB</collectionCode>
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6102
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</specimenCode>
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, 31.4 mm SL;
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<collectingCountry id="36856D05E51A3A4455175D32AE50FFF7">Indonesia</collectingCountry>
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,
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<collectingRegion id="757FEBFFC2C730D331E62294935AFE5C">Kalimantan Tengah</collectingRegion>
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(
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<location id="F0796F57C099152AB79BEA59701E9361" LSID="urn:lsid:plazi:treatment:E25B05A08F0445C8C88A9457187820B8:F0796F57C099152AB79BEA59701E9361" country="Indonesia" latitude="-0.36643332" longitude="114.73505" name="Borneo" stateProvince="Kalimantan Tengah">Borneo</location>
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);
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<location id="423EBBE3D4AD7279ADE91C2E202E01D5" LSID="urn:lsid:plazi:treatment:E25B05A08F0445C8C88A9457187820B8:423EBBE3D4AD7279ADE91C2E202E01D5" country="Indonesia" latitude="-0.36643332" longitude="114.73505" name="Barito River drainage, Sungai Laung at Dessa Maruwei" stateProvince="Kalimantan Tengah">Barito River drainage, Sungai Laung at Dessa Maruwei</location>
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(
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<geoCoordinate id="111F7A8D1FDF5B3FA6221990B4582D4F" direction="south" orientation="latitude" value="-0.36643332">0º21.986’S</geoCoordinate>
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<geoCoordinate id="FB4FD4F23038D33BC784D55B699B74B7" direction="east" orientation="longitude" value="114.73505">114º44.103’E</geoCoordinate>
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);
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<collectorName id="9658AD30F3AAD3CA7D10B91786ED81C4">D. J. Siebert, A. Tjakrawidjaja & O. Crimmen</collectorName>
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,
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<collectingDate id="6E9BA5E318266FC491FDACF47EDE326D" day="18" month="07">15-18 July 1992</collectingDate>
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.
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</materialsCitation>
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</paragraph>
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<paragraph id="33F16F64D5FEDBC489B95776F200014D" pageNumber="2">
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<materialsCitation id="80520F2961A45FE74086E9DE6F3491FD" ID-GBIF-Occurrence="1058480934" collectingDate="1992-07-18" collectionCode="BMNH" collectorName="D. J. Siebert, A. Tjakrawidjaja, O. Crimmen" country="Indonesia" latitude="-0.36643332" location="Borneo, Barito River drainage, Sungai Laung at Dessa Maruwei" longitude="114.73505" specimenCode="BMNH 1998.9.30.18" stateProvince="Kalimantan Tengah" typeStatus="Paratype">
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<typeStatus id="E59C166F81BA7803219E0E3F0EBE4663">Paratype</typeStatus>
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:
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<specimenCode id="2F66FD01066EA74A7FFBCC4D453401F2">
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<collectionCode id="05EA15461F37C468DEA479DC8B3D7FDE" collectionName="United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)]">BMNH</collectionCode>
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1998.9.30.18
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</specimenCode>
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, 30.9 mm SL; data as for holotype.
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</materialsCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="5F05CE77CBE0C31035990C13B728E148" type="diagnosis">
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<paragraph id="6A443A12E5E24004804F5E5825525859" pageNumber="2">
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Diagnosis.
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<taxonomicName id="E51209767F1A548522BC43E90C671554" LSID-ZBK="urn:lsid:zoobank.org:act:2E3DDD80-E574-4E12-BC75-AA8709B93039" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis meridionalis Ng & Siebert 2004:2" order="Siluriformes" pageNumber="2" phylum="Chordata" rank="species" species="meridionalis">Akysis meridionalis</taxonomicName>
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is distinguished from all congeners by the following combination of characters: upper jaw projects more strongly forward, premaxillary teeth exposed when the mouth is closed; head width 18.2-19.4 % SL, body depth at anus 10.7- 11.5 % SL, depth of caudal peduncle 6.5-6.7 % SL, interorbital distance 32-34 % HL, length of maxillary barbels 104-110 % HL; 5 teeth on posterior edge of pectoral spine, and a colour pattern of a dark background with light patches (Fig. 1).
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</paragraph>
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</subSubSection>
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<subSubSection id="03E778BF92D07645F1FE792C9A6DDA9C" type="description">
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<paragraph id="5DA1DBCD461168C4ED92C9B7B7B0DCAE" lastPageNumber="3" pageNumber="2">Description. Head depressed and broad; body moderately compressed and relatively elongate. Mouth conspicuously subterminal; tip of snout noticeably protruding in front of apex of lower jaw (Fig. 2a). Dorsal profile rising evenly from tip of snout to origin of dorsal fin, then sloping gently ventrally to end of caudal peduncle. Ventral profile horizontal to origin of anal, then sloping dorsally to end of caudal peduncle. Head covered with small tubercles, body with tubercles arranged in 5-6 longitudinal rows on each side. Relatively large anterior and posterior nostrils, situated closely together and separated only by base of nasal barbel. Cranial fontanel not reaching base of supraoccipital process. Supraoccipital process narrow, its tip tapering and reaching predorsal plate. Premaxillary tooth plates exposed when mouth is closed. Dorsal origin nearer tip of snout than caudal flexure. Pectoral spine stout, with 5 (2) large serrae posteriorly. Anal origin posterior to adipose origin. Depressed dorsal not reaching adipose fin. Caudal fin strongly forked with pointed lobes.</paragraph>
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<paragraph id="85DCC284345E8520F62200048C73D30B" pageNumber="4">Proportional measurements. In % SL: head length 26.5-29.0, head width 18.2- 19.4, predorsal distance 35.6-38.5, preanal length 62.1-63.4, prepelvic length 44.0-45.2, prepectoral length 25.6-27.4, body depth at anus 10.7-11.5, length of caudal peduncle 21.3-22.0, depth of caudal peduncle 6.5-6.7, pectoral-spine length 14.9-18.2, pectoral-fin length 22.3-25.2, length of dorsal-fin base 10.8-12.0, pelvic-fin length 12.3-13.7, length of anal-fin base 11.7-14.3, caudal-fin length 22.7-25.8, length of adipose-fin base 9.7- 13.1. In % HL: snout length 34-37, interorbital distance 32-34, eye diameter 10, length of nasal barbel 36-40, length of maxillary barbel 104-110, length of inner mandibular barbel 39-46, length of outer mandibular barbel 59-62.</paragraph>
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<paragraph id="436FE93D85AFDD640EDF73E026845F1D" pageNumber="4">Counts. Branchiostegal rays 7 (2). Gill rakers 1+6 (1). Vertebrae 11+23=34 (1) or 12+22=34 (1). Fin ray counts: dorsal I,4,i (2); pectoral I,6,i (2); pelvic i,5 (2); anal ii,7 (2); caudal 7/8 (2).</paragraph>
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<paragraph id="8FF26A6CCACA003AF67A4C8BDB972E0B" lastPageNumber="5" pageNumber="4">Coloration. Dorsal surface and sides of head and body dark brown; anterior and posterior nostrils rimmed with white; a white spot at base of maxillary barbel. Belly, chest and ventral surface of head white. Ventral surface of body posterior to belly white with scattered melanophores. A white spot on side of body between the dorsal and adipose fins; a white saddle mark on caudal peduncle posterior to adipose fin. Basal two-thirds of dorsal fin brown, remaining one-third hyaline. Anal-fin ray hyaline, but with a series of brown spots forming a stripe at about one-third of anal fin height from base. Pectoral and pelvic fins hyaline. Adipose fin with white spot at sub-anterior upper margin. Caudal fin brown with tips of lobes hyaline; a large hyaline spot at base of upper and lower lobe.</paragraph>
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</subSubSection>
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<subSubSection id="CD5DE67DDCED622124ABCB8C457F7A80" type="distribution">
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<paragraph id="DEBA96E13DCCB10F794C3539F534D36C" pageNumber="5">Distribution. Presently known only from the Barito River drainage of southern Borneo.</paragraph>
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</subSubSection>
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<subSubSection id="10EB814DB4E697872A072BF239B34CB5" type="etymology">
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<paragraph id="00814036272DB424BB9F931597AA7ED9" pageNumber="5">Etymology. From the Latin meridionalis, meaning southern, in reference to the known distribution of this species (southern Borneo); used as a noun in apposition.</paragraph>
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</subSubSection>
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<subSubSection id="E9AF1578E5FCCA9B13C24E9FCF02FA89" type="discussion">
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<paragraph id="0F463C32F268732AF07774868B331539" pageNumber="5">Discussion</paragraph>
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<paragraph id="25D1AEE0F1E7CD84521FC4C51B76339C" lastPageNumber="6" pageNumber="5">
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Ng & Kottelat (1998) recognised two species groups within
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<taxonomicName id="EFB9D698D13FFC2AA50A7D1BCFC1F720" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="5" phylum="Chordata" rank="genus">Akysis</taxonomicName>
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. Members of the
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<taxonomicName id="7787D88C52D76D38B79ADD81D79EF351" LSID-ZBK="urn:lsid:zoobank.org:act:D426ABD8-6789-4B6A-820C-D46A9A861758" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis pseudobagarius Roberts 1989:138" order="Siluriformes" pageNumber="5" phylum="Chordata" rank="species" species="pseudobagarius">A. pseudobagarius species group</taxonomicName>
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can be identified by a conspicuously subterminal mouth, relatively large and closely set narial openings, and deeply forked caudal fin. The snout clearly overhangs the lower jaw in this group and the projection of the snout beyond the apex of the lower jaw is supported by bones of the upper jaw. With a conspicuously subterminal mouth, large anterior and posterior narial openings separated only by the base of the nasal barbel, relatively elongate body and strongly forked caudal fin,
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<taxonomicName id="953376B2055435AECA01F252BFD5D038" LSID-ZBK="urn:lsid:zoobank.org:act:2E3DDD80-E574-4E12-BC75-AA8709B93039" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis meridionalis Ng & Siebert 2004:2" order="Siluriformes" pageNumber="5" phylum="Chordata" rank="species" species="meridionalis">A. meridionalis</taxonomicName>
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clearly belongs to the
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<taxonomicName id="AB8AB8AC5F8B042344957926EBE7FEB0" LSID-ZBK="urn:lsid:zoobank.org:act:D426ABD8-6789-4B6A-820C-D46A9A861758" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis pseudobagarius Roberts 1989:138" order="Siluriformes" pageNumber="5" phylum="Chordata" rank="species" species="pseudobagarius">A. pseudobagarius species group</taxonomicName>
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as defined by Ng & Kottelat (1998).
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</paragraph>
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<paragraph id="CAADD1DBFEC86FF0E1ADF566A85D63A8" pageNumber="6">
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<taxonomicName id="A495F9A94469A9D2581D498BB2F39F5A" LSID-ZBK="urn:lsid:zoobank.org:act:2E3DDD80-E574-4E12-BC75-AA8709B93039" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis meridionalis Ng & Siebert 2004:2" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="meridionalis">Akysis meridionalis</taxonomicName>
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shares the southern part of the geographic range of
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<taxonomicName id="00BF2B09CFCFD2FCD3406A19558AD57E" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="genus">Akysis</taxonomicName>
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with the following members of the
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<taxonomicName id="9BDB0029919D7F9EC59CFF4C70F91B69" LSID-ZBK="urn:lsid:zoobank.org:act:D426ABD8-6789-4B6A-820C-D46A9A861758" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis pseudobagarius Roberts 1989:138" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="pseudobagarius">pseudobagaruis-group</taxonomicName>
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:
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<taxonomicName id="A0991F57755129E1E30E0A7914ACF11F" LSID-ZBK="urn:lsid:zoobank.org:act:D426ABD8-6789-4B6A-820C-D46A9A861758" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis pseudobagarius Roberts 1989:138" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="pseudobagarius">A. pseudobagarius Roberts</taxonomicName>
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, 1989;
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<taxonomicName id="2685EE1DDE2E9A554F99E41E801A6A62" LSID-ZBK="urn:lsid:zoobank.org:act:76C5741F-B711-40ED-8E44-E5BABDA5BF76" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis alfredi Ng & Kottelat 1998:1063" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="alfredi">A. alfredi Ng & Kottelat</taxonomicName>
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, 1998;
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<taxonomicName id="63FA7F8F747C8AD74FBE27B0AB0BECAA" LSID-ZBK="urn:lsid:zoobank.org:act:048F354B-616A-470E-B2F5-C59C3D89DCC3" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis baramensis Fowler 1905:472" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="baramensis">A. baramensis Fowler</taxonomicName>
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, 1905;
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<taxonomicName id="8027F2CB001A08E5076D6212B1BAA71A" LSID-ZBK="urn:lsid:zoobank.org:act:22F03DE5-91FD-4D17-BBBF-930110D304D2" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis fuscus Ng & Kottelat 1996:20" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="fuscus">A. fuscus Ng & Kottelat</taxonomicName>
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, 1998; and
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<taxonomicName id="322BB6B44D655C6B148A97CAC1C22964" LSID-ZBK="urn:lsid:zoobank.org:act:5E05D709-6FB0-47CA-A6FF-C1460FABBF39" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis macronema Bleeker 1860:11" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="macronema">A. macronema Bleeker</taxonomicName>
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, 1860. Differences between it and the other southern members of the
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<taxonomicName id="9A4067D6597178031201F7E264E2BEA2" LSID-ZBK="urn:lsid:zoobank.org:act:D426ABD8-6789-4B6A-820C-D46A9A861758" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis pseudobagarius Roberts 1989:138" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="pseudobagarius">A. pseudobagarius species group</taxonomicName>
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are summarised in Table 1.
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<taxonomicName id="01FD3D8C429D37A65078508246997124" LSID-ZBK="urn:lsid:zoobank.org:act:2E3DDD80-E574-4E12-BC75-AA8709B93039" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis meridionalis Ng & Siebert 2004:2" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="meridionalis">Akysis meridionalis</taxonomicName>
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resembles
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<taxonomicName id="70AE3B49BA6FF2D851861A3CD190DC31" LSID-ZBK="urn:lsid:zoobank.org:act:D426ABD8-6789-4B6A-820C-D46A9A861758" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis pseudobagarius Roberts 1989:138" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="pseudobagarius">A. pseudobagarius</taxonomicName>
|
||
in overall physiogamy but can be distinguished from it by fewer serrae on the inner edge of the pectoral spine (5 vs. 8-9; Roberts, 1989), depth of caudal peduncle (6.5-6.7 %SL vs. 3.5-5.5) and a wider head (18.2-19.4 %SL vs. 16.6- 17.8) with more widely set eyes (interorbital distance 32-34 %HL vs. 20-32). The snout of
|
||
<taxonomicName id="40BD9B29F5CF273DD2922F0A41DE30BC" LSID-ZBK="urn:lsid:zoobank.org:act:2E3DDD80-E574-4E12-BC75-AA8709B93039" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis meridionalis Ng & Siebert 2004:2" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="meridionalis">A. meridionalis</taxonomicName>
|
||
is much more produced than that of
|
||
<taxonomicName id="232D26A1589240AD742F82070918120E" LSID-ZBK="urn:lsid:zoobank.org:act:048F354B-616A-470E-B2F5-C59C3D89DCC3" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis baramensis Fowler 1905:472" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="baramensis">A. baramensis</taxonomicName>
|
||
(Fig. 2). The largely exposed-when-mouth-is-closed premaxillary tooth plates of
|
||
<taxonomicName id="3E3172755957C3B44B236CD4A13F2F62" LSID-ZBK="urn:lsid:zoobank.org:act:2E3DDD80-E574-4E12-BC75-AA8709B93039" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis meridionalis Ng & Siebert 2004:2" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="meridionalis">A. meridionalis</taxonomicName>
|
||
separate it from
|
||
<taxonomicName id="53CD32D75ABB5F8DE7EC67B42B7ABF79" LSID-ZBK="urn:lsid:zoobank.org:act:76C5741F-B711-40ED-8E44-E5BABDA5BF76" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis alfredi Ng & Kottelat 1998:1063" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="alfredi">A. alfredi</taxonomicName>
|
||
(partially exposed; contra Ng & Kottelat, 1998),
|
||
<taxonomicName id="1D941CBB76DEAC8CA1ED415E77A7431B" LSID-ZBK="urn:lsid:zoobank.org:act:22F03DE5-91FD-4D17-BBBF-930110D304D2" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis fuscus Ng & Kottelat 1996:20" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="fuscus">A. fuscus</taxonomicName>
|
||
(not exposed, Ng & Kottelat, 1996), and
|
||
<taxonomicName id="4A7009697A409BFA33212B8251BF3395" LSID-ZBK="urn:lsid:zoobank.org:act:5E05D709-6FB0-47CA-A6FF-C1460FABBF39" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis macronema Bleeker 1860:11" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="macronema">A. macronema</taxonomicName>
|
||
(not exposed, Tan & Ng, 2000); it can be further distinguished from
|
||
<taxonomicName id="CB8B51318AF0DE6DF16830FE32128224" LSID-ZBK="urn:lsid:zoobank.org:act:76C5741F-B711-40ED-8E44-E5BABDA5BF76" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis alfredi Ng & Kottelat 1998:1063" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="alfredi">A. alfredi</taxonomicName>
|
||
and
|
||
<taxonomicName id="5D3F9267390EC58D3266EACCAD510D56" LSID-ZBK="urn:lsid:zoobank.org:act:22F03DE5-91FD-4D17-BBBF-930110D304D2" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis fuscus Ng & Kottelat 1996:20" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="fuscus">A. fuscus</taxonomicName>
|
||
by a narrower head (18.2-19.4 %SL vs. 20.3-25.0 21.1-26.2 respectivelly).
|
||
<taxonomicName id="79245982F59E664EA6F788A5416E715F" LSID-ZBK="urn:lsid:zoobank.org:act:2E3DDD80-E574-4E12-BC75-AA8709B93039" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis meridionalis Ng & Siebert 2004:2" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="meridionalis">Akysis meridionalis</taxonomicName>
|
||
also has a wider head (18.2-19.4 %SL vs. 20.3-21.0) than
|
||
<taxonomicName id="1E2A5F7A2CBB00A5BB3A82515C55D863" LSID-ZBK="urn:lsid:zoobank.org:act:5E05D709-6FB0-47CA-A6FF-C1460FABBF39" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis macronema Bleeker 1860:11" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="macronema">A. macronema</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="1BCD5356800FF1A2482686B2B96FAFB6" pageNumber="6">
|
||
The colour pattern of
|
||
<taxonomicName id="CD5C63EEDEA8B51123C27D7F73066709" LSID-ZBK="urn:lsid:zoobank.org:act:2E3DDD80-E574-4E12-BC75-AA8709B93039" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis meridionalis Ng & Siebert 2004:2" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="meridionalis">A. meridionalis</taxonomicName>
|
||
is unique among southern memberts of the
|
||
<taxonomicName id="724FFEE07720BB7F5CE2B0B4646E9E90" LSID-ZBK="urn:lsid:zoobank.org:act:D426ABD8-6789-4B6A-820C-D46A9A861758" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis pseudobagarius Roberts 1989:138" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="pseudobagarius">A. pseudobagarius species group</taxonomicName>
|
||
but can be characterised as intermediate between that found in
|
||
<taxonomicName id="90B979BDC11519BA2F8272BABA0F691E" LSID-ZBK="urn:lsid:zoobank.org:act:048F354B-616A-470E-B2F5-C59C3D89DCC3" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis baramensis Fowler 1905:472" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="baramensis">A. baramensis</taxonomicName>
|
||
and
|
||
<taxonomicName id="0EC79A661AFC56C8FEB2D639CC3E872F" LSID-ZBK="urn:lsid:zoobank.org:act:22F03DE5-91FD-4D17-BBBF-930110D304D2" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis fuscus Ng & Kottelat 1996:20" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="fuscus">A. fuscus</taxonomicName>
|
||
, both of which are dark brown without any light patches or bands, and that found in
|
||
<taxonomicName id="F058339CB93EDD4AE1144CABA1E5BFEE" LSID-ZBK="urn:lsid:zoobank.org:act:76C5741F-B711-40ED-8E44-E5BABDA5BF76" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis alfredi Ng & Kottelat 1998:1063" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="alfredi">A. alfredi</taxonomicName>
|
||
,
|
||
<taxonomicName id="E5A34ACAE3B5D55A8CF34097B80ABD23" LSID-ZBK="urn:lsid:zoobank.org:act:5E05D709-6FB0-47CA-A6FF-C1460FABBF39" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis macronema Bleeker 1860:11" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="macronema">A. macronema</taxonomicName>
|
||
, and
|
||
<taxonomicName id="17F97BFEBE726BDAB0E70087EB1F0F25" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="pseudobagraius">A. pseudobagraius</taxonomicName>
|
||
, all of which have a light background with dark brown patches or bands.
|
||
<taxonomicName id="E19791161AE0CC3506138FB39F2E3DB0" LSID-ZBK="urn:lsid:zoobank.org:act:2E3DDD80-E574-4E12-BC75-AA8709B93039" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis meridionalis Ng & Siebert 2004:2" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="meridionalis">Akysis meridionalis</taxonomicName>
|
||
has a dark brown background colouration with white patches, the reverse of the colour pattern known for
|
||
<taxonomicName id="5D8681240E315199A8F5315A83D20ABB" LSID-ZBK="urn:lsid:zoobank.org:act:76C5741F-B711-40ED-8E44-E5BABDA5BF76" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis alfredi Ng & Kottelat 1998:1063" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="alfredi">A. alfredi</taxonomicName>
|
||
,
|
||
<taxonomicName id="FC9B4D044A2DB4A285C7C3D1910F4C39" LSID-ZBK="urn:lsid:zoobank.org:act:5E05D709-6FB0-47CA-A6FF-C1460FABBF39" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis macronema Bleeker 1860:11" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="macronema">A. macronema</taxonomicName>
|
||
, and
|
||
<taxonomicName id="8C846E2575453A78E57D404E19EC01D7" LSID-ZBK="urn:lsid:zoobank.org:act:D426ABD8-6789-4B6A-820C-D46A9A861758" family="Akysidae" genus="Akysis" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Akysis pseudobagarius Roberts 1989:138" order="Siluriformes" pageNumber="6" phylum="Chordata" rank="species" species="pseudobagarius">A. pseudobagarius</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |