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<document id="D88057AA3B4D8A5B1B488F327391AF2E" ENCODING="UTF-8" ID-GBIF-Dataset="d35dbac3-f7d8-40cd-bc27-f82b5731a0f2" ModsDocID="z01229p059" checkinTime="1247153301147" checkinUser="thomas" docAuthor="Heok Hee Ng" docDate="2006" docId="9F872460DC32BEAA49D0AFE7DDBE8D1B" docLanguage="en" docName="2006_Ng3_gg1.xml" docOrigin="Zootaxa 1229" docSource="http://www.zoobank.org/urn:lsid:zoobank.org:pub:0937D55B-CC40-48A8-87B8-156C6C197BB2" docTitle="Pseudolaguvia ferula Ng, 2006, sp. nov." docType="treatment" docVersion="12" lastPageNumber="66" masterDocId="D0BF2108559A3731C1DE84D170E9B0D8" masterDocTitle="Pseudolaguvia ferula, a new species of sisoroid catfish (Teleostei: Erethistidae) from India." masterLastPageNumber="68" masterPageNumber="59" pageNumber="60" updateTime="1701314384269" updateUser="plazi">
<mods:mods id="72E38DF64E2C64E872C0864886D76875" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="25632DDAE19302ED101466029ECB8CFD">
<mods:title id="6085D415D8B1F685D401C3C0205E90A3">Pseudolaguvia ferula, a new species of sisoroid catfish (Teleostei: Erethistidae) from India.</mods:title>
</mods:titleInfo>
<mods:name id="E1948BB8C0CB9316ED89AC54C21C826A" type="personal">
<mods:role id="78FDD6E346F383EC8BE006BA71BAEC6C">
<mods:roleTerm id="F75351F557C8A02D79DC4A51F565B2E5">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="82B2D600CF39B6F10DACAFFD4CEA40BF">Heok Hee Ng</mods:namePart>
</mods:name>
<mods:typeOfResource id="5A7C0E9C9C91CFA09FF9C8C87927E57B">text</mods:typeOfResource>
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<mods:title id="8D54FB3132D8FF86D7DE7C7241068E9D">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="473B61714D30E3457B410D864E94DA6A">
<mods:date id="AB865DCB7EDC7E308368E99ACBC8134F">2006</mods:date>
<mods:detail id="CD475DFB9FB5E075ECFB28598575107A" type="volume">
<mods:number id="23BE1D633561BBCCBE37CE060D4C5A74">1229</mods:number>
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<mods:url id="6899F1B2EE387048A493848CB52DF651">http://www.zoobank.org/urn:lsid:zoobank.org:pub:0937D55B-CC40-48A8-87B8-156C6C197BB2</mods:url>
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<mods:classification id="5AC1D77003B42AA8CCF0284BB106C61C">journal article</mods:classification>
<mods:identifier id="1C6458C7EC30AFEC34DA29C6FD9BC443" type="Plazi-Custom">z01229p059</mods:identifier>
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<treatment id="9F872460DC32BEAA49D0AFE7DDBE8D1B" ID-DOI="http://doi.org/10.5281/zenodo.6253060" ID-GBIF-Taxon="100123862" ID-Zenodo-Dep="6253060" LSID="urn:lsid:plazi:treatment:9F872460DC32BEAA49D0AFE7DDBE8D1B" httpUri="http://treatment.plazi.org/id/9F872460DC32BEAA49D0AFE7DDBE8D1B" lastPageNumber="66" pageNumber="60">
<subSubSection id="263844D8154784E1FBA7B6491A2BE0A5" type="nomenclature">
<paragraph id="D7E244CBB971341C0EF92FDD59F6F793" pageNumber="60">
<taxonomicName id="57A5036597474321822688EAB5BB1B50" ID-CoL="4NYWK" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="ferula">Pseudolaguvia ferula</taxonomicName>
<taxonomicNameLabel id="C32CBA95929C4B6750E5143D7B766BB5" rank="species">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection id="1C4424FEE7DA5C80C4FD52176927307C" type="description">
<paragraph id="82F5521C442B3BE4A3FE05B710B6BFA3" pageNumber="60">(Fig. 1)</paragraph>
</subSubSection>
<subSubSection id="6924F97D6B5D722383000A913E1BF9AE" type="nomenclature">
<paragraph id="28AD5E296488467BC96B1A1F78CA9CCF" pageNumber="60">Type material</paragraph>
<paragraph id="A50F1328668409D02BBBF35EF965EFF0" pageNumber="60">
<materialsCitation id="CC50455CF8B9DD8719DD773497DE5428" ID-GBIF-Occurrence="923906061" country="India" stateProvince="West Bengal">
Holotype:
<collectionCode id="6D82C163D2A7829837BE3A935C249603">UMMZ</collectionCode>
245985, 25.4 mm SL;
<collectingCountry id="7106D8F63AFA20051B871C1B112FD735">India</collectingCountry>
:
<collectingRegion id="CF0077A935ACCF6741B9F5CDCBB29680">West Bengal</collectingRegion>
, Tista River at Tista Barrage, 26°45’10’’N 88°34’11’’E; A. Rao, 2005.
</materialsCitation>
</paragraph>
<paragraph id="E191322FFD17520BA74C94EAACB086A3" country="India" pageNumber="60">
<materialsCitation id="D6219C1C2D4C3E6B10FA525ED0D69A6E" ID-GBIF-Occurrence="923906077" country="India" stateProvince="West Bengal">
Paratypes:
<collectionCode id="188D4BE48FE01313BD91B4011A3842EE">UMMZ</collectionCode>
245986 (12), 19.6-24.8 mm SL
</materialsCitation>
;
<materialsCitation id="E96CF6D9FCD47B906D70975A78A0DF26" ID-GBIF-Occurrence="923906070" country="India" stateProvince="West Bengal">
<collectionCode id="F42D99D531FEF9EC120EA27EE5C25E03">ZRC</collectionCode>
50398 (2), 21.8-23.0 mm SL; data as for holotype
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="B4F4D56F1FED06D648297AC41CCA1EF3" type="diagnosis">
<paragraph id="03A1E58D345160C941E210B359A7DA1F" pageNumber="60">Diagnosis</paragraph>
<paragraph id="295E8CB232AF3BEB2462CA5239D55130" lastPageNumber="61" pageNumber="60">
<taxonomicName id="7B8EDFD168D25EA435CA91BD8C7B467E" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="ferula">Pseudolaguvia ferula</taxonomicName>
differs from congeners in having a terete head and body (vs. slightly depressed body and strongly depressed head). This difference in body form is easily manifested in the head width (17.1-19.1% SL vs. 19.4-24.3). It can also be distinguished from congeners in having a smaller anterior fontanel (about one third the length of the frontals vs. at least half the length; Fig. 2), and very faint, poorly contrasting cream bands that are sometimes absent on some individuals (vs. sharply contrasting cream bands on a brown body).
<taxonomicName id="0CE48F0091EE960E3A507DE115A9F50C" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="ferula">Pseudolaguvia ferula</taxonomicName>
further differs from congeners except
<taxonomicName id="1BB0ADFD3D6AC8A7332701746DDC3ED5" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="ribeiroi">P. ribeiroi</taxonomicName>
in having a shorter adipose-fin base (11.5-13.0% SL vs. 14.8-24.0), and, except from
<taxonomicName id="D39BE5D9BD6D606DDD5F03911DD63AF6" LSID-ZBK="urn:lsid:zoobank.org:act:43D9CD07-B23E-49B7-A4DD-6CD75DCF5E86" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia foveolata Ng 2005:174" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="foveolata">P. foveolata</taxonomicName>
, in having the unculiferous ridges on the thoracic adhesive apparatus joined at their posterior ends (vs. separate; Fig. 3). It is further distinguished from
<taxonomicName id="4BF6A0C11632AD59F9DA92F08FADE4BA" LSID-ZBK="urn:lsid:zoobank.org:act:43D9CD07-B23E-49B7-A4DD-6CD75DCF5E86" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia foveolata Ng 2005:174" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="foveolata">P. foveolata</taxonomicName>
in having fewer vertebrae (28-30 vs. 33) and a longer thoracic adhesive apparatus (reaching to midway between bases of last pectoral-fin ray and first pelvic-fin ray vs. to middle of pectoral-fin base), from
<taxonomicName id="EB8700F1A71E2141A73124D0AE27EC8F" LSID-ZBK="urn:lsid:zoobank.org:act:0A75A3D8-3928-42A3-9075-DABC5C68930A" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia inornata Ng 2005" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="inornata">P. inornata</taxonomicName>
in having a slenderer body (12.1-13.8% SL vs. 13.9-16.1) and smaller eye (8.6-11.7% HL vs. 12.7-14.9), from
<taxonomicName id="9AD9B3C5869C861F56B290754B56EBDF" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="kapuri">P. kapuri</taxonomicName>
in having a shorter pelvic fin (not reaching base of the first anal-fin ray vs. reaching; 13.0-14.7% SL vs. 15.3-17.9), and from
<taxonomicName id="6E11F1F4C9B88FB6254E385AA7787CC7" LSID-ZBK="urn:lsid:zoobank.org:act:9D2F348F-572B-42AF-BB60-8EC94D3534F9" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia muricata Ng 2005" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="muricata">P. muricata</taxonomicName>
in having shorter dorsal and pectoral spines (17.3-18.7% SL vs. 21.2-26.7 and 20.2-24.3% SL vs. 26.8-35.7 respectively) and a smaller eye (8.6-11.7% HL vs. 11.4-15.1).
<taxonomicName id="AF4B3DE8308669A1A19C11F8B11AF6B9" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="ferula">Pseudolaguvia ferula</taxonomicName>
is further distinguished from
<taxonomicName id="7274B143F04422C747D57D3CD784D0FF" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="ribeiroi">P. ribeiroi</taxonomicName>
in having less distinct mesethmoid cornua (Fig. 2), from
<taxonomicName id="1BADEA80944A172A3CD81C9E8864EC20" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="shawi">P. shawi</taxonomicName>
in having a longer dorsal spine (17.3-18.7% SL vs. 13.4-16.7), and from
<taxonomicName id="8132EBBB2EB3B92611331ED6B1BB432F" LSID-ZBK="urn:lsid:zoobank.org:act:4246F4B6-CE44-4B37-85A9-AE3A2E51CBA0" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia tenebricosa Britz &amp; Ferraris 2003:2" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="tenebricosa">P. tenebricosa</taxonomicName>
and
<taxonomicName id="91C07B9F51D45B0A952BAB3FE11AC5F4" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="60" phylum="Chordata" rank="species" species="tuberculata">P. tuberculata</taxonomicName>
in having a slenderer caudal peduncle (6.9-7.8% SL vs. 7.6-9.0).
</paragraph>
</subSubSection>
<subSubSection id="A886D9748B6EDA1B06CF61D9D9115D05" type="description">
<paragraph id="F794D5555AAF4BF7230C1FECB5F258BA" pageNumber="61">Description</paragraph>
<paragraph id="B1D49D84D9E90F63E2C17A52FAD0CC08" pageNumber="61">Biometric data as in Table 1. Head slightly depressed and terete, body terete. Dorsal profile rising evenly from tip of snout to origin of dorsal fin, then sloping gently ventrally from there to end of caudal peduncle. Ventral profile flat to anal-fin base, then sloping gently dorsally from there to end of caudal peduncle. Anterior fontanel small, approximately one third length of forntals. Supraoccipital spine reaching nuchal shield. Weberian lamina well developed, approximately same length as supraoccipital spine and extending parallel to either side of spine. Eye ovoid, horizontal axis longest; located entirely in dorsal half of head. Orbit with free margin. Gill openings narrow, extending from posttemporal to isthmus. Branchiostegal membranes united at isthmus. Caudal peduncle of moderate length and depth. Anus and urogenital openings located at vertical through middle of adpressed pelvic fin. Skin tuberculate. Lateral line complete and midlateral. Vertebrae 10+18=28 (1). 10+19=29 (4), 11+18=29 (5), 11+19=30* (4) or 10+20=30 (1). Abdomen with thoracic adhesive apparatus consisting of longitudinal, unculiferous ridges arranged in elliptical field and with prominent central median depression. Adhesive apparatus extending to midway between base of last pectoral-fin ray and pelvic-fin origin.</paragraph>
<paragraph id="DD7ED1EE951BE172ECDE9E681FC39441" pageNumber="61">Mouth small, inferior and with papillate lips; upper jaw projecting beyond lower jaw. Oral teeth small and in irregular rows on all tooth-bearing surfaces. Premaxillary tooth band consisting of single broad lunate patch across midline; with conical teeth very slightly exposed when mouth is closed. Dentary tooth band narrow, with conical teeth.</paragraph>
<paragraph id="F81DAEC14634D81906818AA07A6E0EB8" pageNumber="61">Barbels in four pairs. Nasal barbel very short and broad, extending to one third distance between its base and anterior orbital margin. Maxillary barbel slender, with broad skin flap at base and extending to base of pectoral-fin spine. Outer mandibular barbel with broad skin flap on dorsal margin and extending to base of pectoral-fin spine; inner mandibular barbel broad and shorter, reaching to vertical through posterior orbital margin.</paragraph>
<paragraph id="D5085F3A701E63250A1BCFB499D1BD45" pageNumber="61">Dorsal fin located about two-fifths along body; with 4,i (15) rays and straight margin. Dorsal-fin spine flattened, straight and robust; spine extending to line through base of pelvic fin. Anterior margin of spine smooth, posterior margin with 4-5 small serrations.</paragraph>
<paragraph id="5F70C983118DB4912E984B826E585AB4" pageNumber="61">Pectoral fin with stout, blade-like spine, sharply pointed at tip, and with 7 (15) rays. Anterior spine margin with 11-15 small serrations. Posterior spine margin with 5-7 large serrations. Pectoral-fin margin straight anteriorly and posteriorly. Coracoid with short posterior processes, extending just beyond base of posteriormost pectoral-fin ray.</paragraph>
<paragraph id="28E264C9E8933148A78A8E8AD72B200F" pageNumber="62">Pelvic-fin origin at vertical through middle of dorsal-fin base. Pelvic fin with i,5 (15) rays and straight margin; tip of adpressed fin not reaching anal-fin origin.</paragraph>
<paragraph id="ED5CEA66FFF4CB40E756DD106DCB3BD7" pageNumber="62">Adipose fin short, posterior end deeply incised. Fin located above anal-fin base. Anal fin with iii,6,i (15) rays, and straight anterior and posterior margins.</paragraph>
<paragraph id="75D8F3347F4266040C6EFCE2A8EFBC17" pageNumber="62">Caudal peduncle moderately deep. Caudal fin deeply forked, with i,7,7,i (15) principal rays; upper and lower lobes pointed, with lobes of equal length but lower lobe slightly broader than upper. Procurrent rays symmetrical, extending only slightly anterior to fin base.</paragraph>
</subSubSection>
<subSubSection id="8264D20AF6BAA699428240C2AFA36C60" type="description">
<paragraph id="A4BD3C569FEBCFD020BE827375A968A8" pageNumber="65">Coloration</paragraph>
<paragraph id="346D91DA4C168BF34E09FC6EFA2A660D" pageNumber="65">In 70% alcohol: dorsal and lateral surfaces of head and body grayish brown, fading to lighter grayish brown on lateral surfaces of head and dorsal and lateral surfaces of head and body, fading further to cream on ventral surfaces of head and body. Two series of faint, poorly contrasting cream bands on body: first between dorsal and adipose fins, and second on anterior half of caudal peduncle. Bands absent in some individuals, imparting uniform appearance to coloration. Dorsal fin, with brown base and stripe extending along entire length of dorsal spine, first soft ray and interradial membrane between. Pectoral and pelvic hyaline, with scattered melanophores forming faint transverse bands on middle third of fin. Anal fin hyaline, with brown along base and irregular brown stripe running along length of first and second branched anal-fin rays. Caudal fin hyaline, with brown base and subdistal brown stripe running along length of each lobe; brown band connected to brown color at base via brown median caudal rays in some individuals. Nasal and maxillary barbels brown dorsally, cream ventrally; all mandibular barbels cream.</paragraph>
</subSubSection>
<subSubSection id="C566D496F95EC4D9F44D3436C19CF27F" type="etymology">
<paragraph id="CA33A1C947B4EB66CBB66651E3F22C44" pageNumber="65">Etymology</paragraph>
<paragraph id="4A95BD25468A4F5FC70624E74816B26F" pageNumber="65">From the Latin ferula, meaning rod, in reference to the terete head and body in this species, which makes it considerably narrower than congeners. Used as a noun in the nominative singular.</paragraph>
</subSubSection>
<subSubSection id="D7BAFF17544A68B3A9DF1A07E59DCF2E" type="distribution">
<paragraph id="26ECB7410890331B12191E8825C51D04" pageNumber="65">Distribution and habitat</paragraph>
<paragraph id="FBC2D40F6227FD23BD191696BCB727E0" pageNumber="65">Known from the type locality in the Tista River in West Bengal, India (Fig. 4).</paragraph>
</subSubSection>
<subSubSection id="4AE26076B1D14B9C122C44E19407CB22" type="biology_ecology">
<paragraph id="BE3528D1FAC8B2683AE9056C9F844D78" pageNumber="65">
The Tista River where
<taxonomicName id="03B397E4C209C3B052912105B53C7BAA" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="65" phylum="Chordata" rank="species" species="ferula">P. ferula</taxonomicName>
was collected is wide (ca. 1 km), swift flowing, and with a mixed rocky/sandy bottom. Other fish species caught in the immediate vicinity are:
<taxonomicName id="8F9D1D098567768075792A60C1D34341" family="Cyprinidae" genus="Aspidoparia" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="morar">Aspidoparia morar</taxonomicName>
,
<taxonomicName id="BB52AC795358A5C0B97495D2F2168E1A" family="Cyprinidae" genus="Barilius" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="bendelisis">Barilius bendelisis</taxonomicName>
,
<taxonomicName id="69932ABC3C90889958457CB6AAD15FD5" family="Cyprinidae" genus="Barilius" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="shacra">B. shacra</taxonomicName>
,
<taxonomicName id="995CD43D9858453595103D7267EF762F" family="Cyprinidae" genus="Barilius" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="vagra">B. vagra</taxonomicName>
,
<taxonomicName id="9033F20254B0FEEE25D36920DBD8ED3D" family="Cyprinidae" genus="Crossocheilus" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="latius">Crossocheilus latius</taxonomicName>
,
<taxonomicName id="85086C8ACB2F00D829DFAFE0E819A889" family="Cyprinidae" genus="Garra" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="lissorhynchus">Garra lissorhynchus</taxonomicName>
(Cyprinidae),
<taxonomicName id="F48D0DCCD3AAE5B0F65EBCC348468217" family="Psilorhynchidae" genus="Psilorhynchus" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="balitora">Psilorhynchus balitora</taxonomicName>
,
<taxonomicName id="081B83580DA0DE3541CE3268082F804A" LSID-ZBK="urn:lsid:zoobank.org:act:2D612F36-96CA-4425-9278-5C3304C3B9E0" family="Psilorhynchidae" genus="Psilorhynchus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Psilorhynchus sucatio damodarai David 1953:248" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="sucatio">P. sucatio</taxonomicName>
(Psilorhynchidae),
<taxonomicName id="B81771A3996776E1778F39321E4A93B3" family="Cobitidae" genus="Canthophrys" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="gongota">Canthophrys gongota</taxonomicName>
,
<taxonomicName id="92DA2974BA1F7E003C6B5029C3699DBB" family="Cobitidae" genus="Lepidocephalichthys" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="guntea">Lepidocephalichthys guntea</taxonomicName>
(Cobitidae),
<taxonomicName id="5120D0701968EB3A6D29517860B7C13B" family="Nemacheilidae" genus="Acanthocobitis" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="botia">Acanthocobitis botia</taxonomicName>
,
<taxonomicName id="A0F90DCEA5DFE971201DDB972CED3DED" family="Nemacheilidae" genus="Schistura" higherTaxonomySource="CoL" kingdom="Animalia" order="Cypriniformes" pageNumber="65" phylum="Chordata" rank="species" species="savona">Schistura savona</taxonomicName>
(Balitoridae),
<taxonomicName id="D0408C354559640D72C19014D1D957CE" family="Amblycipitidae" genus="Amblyceps" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="65" phylum="Chordata" rank="species" species="mangois">Amblyceps mangois</taxonomicName>
(Amblycipitidae),
<taxonomicName id="3F92E1B0D3E8B8AA2C51D900B31F0B59" family="Bagridae" genus="Batasio" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="65" phylum="Chordata" rank="species" species="tengana">Batasio tengana</taxonomicName>
(Bagridae),
<taxonomicName id="C6CDAED728A26E267E6A2600AF448FA9" LSID-ZBK="urn:lsid:zoobank.org:act:439BE4CD-38E1-4064-967E-FD6A36F79871" family="Erethistidae" genus="Erethistoides" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Erethistoides sicula Ng 2005" order="Siluriformes" pageNumber="65" phylum="Chordata" rank="species" species="sicula">Erethistoides sicula</taxonomicName>
(Erethistidae),
<taxonomicName id="74120608192812186CAED20773F8E784" LSID-ZBK="urn:lsid:zoobank.org:act:43D9CD07-B23E-49B7-A4DD-6CD75DCF5E86" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia foveolata Ng 2005:174" order="Siluriformes" pageNumber="65" phylum="Chordata" rank="species" species="foveolata">Pseudolaguvia foveolata</taxonomicName>
,
<taxonomicName id="4E4A6BDCB4FA9DACA46B22ADBEA80243" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="65" phylum="Chordata" rank="species" species="ribeiroi">P. ribeiroi</taxonomicName>
,
<taxonomicName id="042F01A6318402D7CD46122F22532DA2" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="65" phylum="Chordata" rank="species" species="shawi">P. shawi</taxonomicName>
(Erethistidae) and
<taxonomicName id="B0DBAB2E3FF9C3049BEFD50C2BA1D974" family="Ambassidae" genus="Parambassis" higherTaxonomySource="CoL" kingdom="Animalia" order="Perciformes" pageNumber="65" phylum="Chordata" rank="species" species="ranga">Parambassis ranga</taxonomicName>
(Ambassidae).
</paragraph>
</subSubSection>
<subSubSection id="1ED7407EC5EBB0102FCC4C54FC42EE36" type="discussion">
<paragraph id="32B51CDD31A938B684B8D58AB68B3791" pageNumber="66">Discussion</paragraph>
<paragraph id="66259BEBE365E15D01BE2935525EA3B3" pageNumber="66">
Three other species of
<taxonomicName id="7C9355E06418CA496DD33915B4525896" LSID-ZBK="urn:lsid:zoobank.org:act:BED2BB84-3FBC-4BDC-9032-0D537AD3F726" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia Misra 1976:253" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="genus">Pseudolaguvia</taxonomicName>
have been collected syntopically in the Brahmaputra River drainage with
<taxonomicName id="DA4E2BF2632B642DD39F3EF1201CE023" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ferula">P. ferula</taxonomicName>
:
<taxonomicName id="272675DAB3EBB4291D446D1C5F44EC41" LSID-ZBK="urn:lsid:zoobank.org:act:43D9CD07-B23E-49B7-A4DD-6CD75DCF5E86" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia foveolata Ng 2005:174" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="foveolata">P. foveolata</taxonomicName>
,
<taxonomicName id="259AE183C3B4C8237126F18A351A73C2" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ribeiroi">P. ribeiroi</taxonomicName>
and
<taxonomicName id="E785D5D841EF3C8998BE3C97F8E82937" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="shawi">P. shawi</taxonomicName>
.
<taxonomicName id="C94F69BAF2C8F478FA6DBC686F778CA6" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ferula">Pseudolaguvia ferula</taxonomicName>
is clearly distinguished from these three species in having a narrower head as described in the diagnosis (Fig. 5).
<taxonomicName id="DCA44015E5AD6543EF527DFE3CC81926" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ferula">Pseudolaguvia ferula</taxonomicName>
is additionally diagnosed from syntopic congeners in the size of the anterior fontanel, and the morphologies of the mesethmoid cornua and the thoracic adhesive apparatus as outlined in the diagnosis. Furthermore, the color pattern of
<taxonomicName id="ABAADA21889316617E2864DA871F4F5D" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ferula">P. ferula</taxonomicName>
is different from the other three species: the color pattern of
<taxonomicName id="7DC230BC50F936BCC423EA56A4489DE6" LSID-ZBK="urn:lsid:zoobank.org:act:43D9CD07-B23E-49B7-A4DD-6CD75DCF5E86" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia foveolata Ng 2005:174" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="foveolata">P. foveolata</taxonomicName>
,
<taxonomicName id="86C9A5F5F3B6686B94D59599EA246894" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ribeiroi">P. ribeiroi</taxonomicName>
and
<taxonomicName id="A9DD9FAB648623C51A169D2EFB79AF9E" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="shawi">P. shawi</taxonomicName>
consists of sharply contrasting cream bands on a brown body (although the bands are usually thinner in
<taxonomicName id="B8A55C64165C52E37CED63472A0817B1" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ribeiroi">P. ribeiroi</taxonomicName>
), while
<taxonomicName id="5821D3333578067DE083BD9EC6E653E0" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ferula">P. ferula</taxonomicName>
has very faint, poorly contrasting cream bands that are sometimes absent on some individuals.
</paragraph>
<paragraph id="F3FDAFD3D4456533381539F87A16327C" pageNumber="66">
Five of the nine species of
<taxonomicName id="6961BBDB43F53633C0ECD051FA6CCDD1" LSID-ZBK="urn:lsid:zoobank.org:act:BED2BB84-3FBC-4BDC-9032-0D537AD3F726" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia Misra 1976:253" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="genus">Pseudolaguvia</taxonomicName>
occur in the Brahmaputra River drainage (
<taxonomicName id="524E461C11E1A8472956B3ABBEAFA1C0" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ferula">P. ferula</taxonomicName>
,
<taxonomicName id="1A7E592262B73648ADA9327F81068748" LSID-ZBK="urn:lsid:zoobank.org:act:43D9CD07-B23E-49B7-A4DD-6CD75DCF5E86" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia foveolata Ng 2005:174" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="foveolata">P. foveolata</taxonomicName>
,
<taxonomicName id="46C2D1D3A45BC9EEB446D7D2AD9FD6E9" LSID-ZBK="urn:lsid:zoobank.org:act:9D2F348F-572B-42AF-BB60-8EC94D3534F9" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia muricata Ng 2005" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="muricata">P. muricata</taxonomicName>
,
<taxonomicName id="97E5A73FCF9F7E11B19F3DF315A432F1" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ribeiroi">P. ribeiroi</taxonomicName>
, and
<taxonomicName id="F21FF486B2AEA13D5D4343D47F6DBAAA" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="shawi">P. shawi</taxonomicName>
), of which
<taxonomicName id="31F895E9FD47D9BA80EE960FECFBA76E" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ferula">P. ferula</taxonomicName>
and
<taxonomicName id="57C16A0007B78BEFEA9DBC8BB1B1949E" LSID-ZBK="urn:lsid:zoobank.org:act:43D9CD07-B23E-49B7-A4DD-6CD75DCF5E86" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia foveolata Ng 2005:174" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="foveolata">P. foveolata</taxonomicName>
are known from only a single locality. Collections in this area are poorly represented in museums and it was not possible to examine any more material to more accurately determine the geographical distribution of these species. Examination of the two species for which collections over the widest area exist (
<taxonomicName id="B28488128D94E4274AA61DC7B056F37B" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ribeiroi">P. ribeiroi</taxonomicName>
and
<taxonomicName id="F384FC8CD54524C706D0A8C85A5E6BE8" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="shawi">P. shawi</taxonomicName>
) indicate that no significant geographic variation exists for either morphometry or other morphological characters used in the diagnosis of
<taxonomicName id="5333DCABFD4519D64B7616AB496B2B0C" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ferula">P. ferula</taxonomicName>
(making it unlikely that
<taxonomicName id="30BAC235682FD2F7E3ADF4D98C1E60D8" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ferula">P. ferula</taxonomicName>
is a geographical variant of another species). It has been shown that positive correlation exists between body size and geographic distribution once effects of latitude, longitude and phylogeny have been statistically accounted for (Taylor &amp; Gotelli, 1994), and this may presumably be true for small, benthic catfishes like
<taxonomicName id="D4FB006A808B04C0A163E8E4FF286D75" LSID-ZBK="urn:lsid:zoobank.org:act:BED2BB84-3FBC-4BDC-9032-0D537AD3F726" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia Misra 1976:253" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="genus">Pseudolaguvia</taxonomicName>
, which presumably are less labile (and thus less able to disperse). The presumed reduced lability of
<taxonomicName id="421D23094D62B27A5E94DF034B9C7F8D" LSID-ZBK="urn:lsid:zoobank.org:act:BED2BB84-3FBC-4BDC-9032-0D537AD3F726" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia Misra 1976:253" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="genus">Pseudolaguvia</taxonomicName>
may account for the fact that
<taxonomicName id="389688869094013EE07314376389A485" LSID-ZBK="urn:lsid:zoobank.org:act:BED2BB84-3FBC-4BDC-9032-0D537AD3F726" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Pseudolaguvia Misra 1976:253" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="genus">Pseudolaguvia</taxonomicName>
species are frequently syntopic within the Brahmaputra River drainage (
<taxonomicName id="DABF285B67F3557C25A22D0C95D98B92" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="ribeiroi">P. ribeiroi</taxonomicName>
and
<taxonomicName id="97ECD67EAA231BE7E865CA08926C7CB0" family="Erethistidae" genus="Pseudolaguvia" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="66" phylum="Chordata" rank="species" species="shawi">P. shawi</taxonomicName>
are often collected in the same habitat). Although this may also be true in other areas within the distribution of the genus, the fishes of these regions are too poorly sampled to verify this hypothesis.
</paragraph>
</subSubSection>
</treatment>
</document>
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