171 lines
19 KiB
XML
171 lines
19 KiB
XML
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<document id="38C8200BC0888A6F9CE4393563C35DCF" ENCODING="UTF-8" ID-GBIF-Dataset="de54b7ba-7fc2-487b-a2b9-9b84d72de693" ModsDocID="z00761p001" checkinTime="1246967653490" checkinUser="thomas" docAuthor="Sergio M. Q. Lima & Wilson J. E. M. Costa" docDate="2004" docId="0B6C8DB3F0D3EED353619E79B2A5871A" docLanguage="en" docName="2004_Lima_Costa_gg2.xml" docOrigin="Zootaxa 761" docSource="http://www.zoobank.org/urn:lsid:zoobank.org:pub:58E23EEA-F6C4-427E-A05E-94A51251B17D" docTitle="Trichomycterus giganteus Lima & Costa, 2004, new species" docType="treatment" docVersion="14" lastPageNumber="5" masterDocId="5BF6648282ED39AA2230CA3CBD9FF1DB" masterDocTitle="Trichomycterus giganteus (Siluriformes: Loricarioidea: Trichomycteridae): a new catfish from the Rio Guandu basin, southeastern Brazil." masterLastPageNumber="6" masterPageNumber="1" pageNumber="2" updateTime="1701314066997" updateUser="plazi">
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<mods:mods id="27DCD4D2D4D157AA9BAC08CF8C770DC0" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="1B602D55CC827D7E8D68EE2919F8C1A5">
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<mods:title id="DC51CC8DBAE841332CC190542704C5A7">Trichomycterus giganteus (Siluriformes: Loricarioidea: Trichomycteridae): a new catfish from the Rio Guandu basin, southeastern Brazil.</mods:title>
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</mods:titleInfo>
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<mods:name id="41490A1CF09B348A9987F34D8B397253" type="personal">
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<mods:role id="96C969886C212C884D51EDFEE173B380">
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<mods:roleTerm id="22395CC31D7282F4EBB2983CEDDDC856">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="BF83B81B6A8CE0B7BB2A2D59340E022E">Sergio M. Q. Lima</mods:namePart>
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</mods:name>
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<mods:name id="E58634D429A7B85C64180B4277DF8548" type="personal">
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<mods:role id="F1D1FEF793C069662B46C954D5D6B38F">
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<mods:roleTerm id="7850921A8888BE423DD8DD421A40F6E1">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="77E81839DAF117FBCCC0E7C8007415A4">Wilson J. E. M. Costa</mods:namePart>
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</mods:name>
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<mods:typeOfResource id="C12F14DE43DE2401A5F48E0F0DC3198A">text</mods:typeOfResource>
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<mods:relatedItem id="90AD662506B769A2B20EB7E6CE0E15D4" type="host">
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<mods:titleInfo id="5A648C6849E456143D1226405217C784">
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<mods:title id="0886B89DA371AF1C397F98A4F1F91F37">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="7B8E58AC605E7DBABCF3236F805C41A5">
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<mods:date id="EE36B84A9B54936CCDF6EC1C4D5770FF">2004</mods:date>
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<mods:detail id="FBE7D4284DD4C5E53ABC3BF392119EA7" type="volume">
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<mods:number id="6CB5AC742510DE5198F5BCD8209619F4">761</mods:number>
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</mods:detail>
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<mods:extent id="95FB3B0109F50283BEF9BF0B7D69EE0D" unit="page">
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<mods:start id="1315B099FA2E0F9BFEE19A1EDAD305FE">1</mods:start>
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<mods:end id="D5F0C4490618F7182C67967AC7F81B9A">6</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location id="135CAEAB05FAB04BFE915022C821CAC9">
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<mods:url id="5B4AE27EDEE6B9AEAE872EA070D6E05C">http://www.zoobank.org/urn:lsid:zoobank.org:pub:58E23EEA-F6C4-427E-A05E-94A51251B17D</mods:url>
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</mods:location>
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<mods:classification id="4177B30CFE26768FCD1E613C1FB4207A">journal article</mods:classification>
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<mods:identifier id="5730E03B0823EF1528ECC9FCD3134E4D" type="Plazi-Custom">z00761p001</mods:identifier>
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</mods:mods>
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<treatment id="0B6C8DB3F0D3EED353619E79B2A5871A" ID-DOI="http://doi.org/10.5281/zenodo.6269943" ID-GBIF-Taxon="125136612" ID-Zenodo-Dep="6269943" LSID="urn:lsid:zoobank.org:act:197E097C-2451-43DE-B902-111021AAEB5D" httpUri="http://treatment.plazi.org/id/0B6C8DB3F0D3EED353619E79B2A5871A" lastPageNumber="5" pageNumber="2">
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<subSubSection id="AE129549889B5E451D3CD7C5B53A1142" type="nomenclature">
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<paragraph id="9F4EF9CE63A7197D663A3FD297319254" pageNumber="2">
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<taxonomicName id="0B10054981031558B8E4E0D832F66469" ID-CoL="58FH5" LSID-ZBK="urn:lsid:zoobank.org:act:197E097C-2451-43DE-B902-111021AAEB5D" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Trichomycterus giganteus Lima & Costa 2004:2" order="Siluriformes" pageNumber="2" phylum="Chordata" rank="species" species="giganteus">Trichomycterus giganteus</taxonomicName>
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<taxonomicNameLabel id="6C8954D9BDE0A204B225383E88D4C968" rank="species">new species</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="BCC1C90D1632F1684F3486E57A85A5F8" type="description">
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<paragraph id="B1248959807B4DE8D5FA0303D4812349" pageNumber="2">(Fig. 1)</paragraph>
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</subSubSection>
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<subSubSection id="EEFB079E99D0BE73DCE9789379F394AF" type="nomenclature">
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<paragraph id="58DE30BD970D14EE37452557C86F3E19" pageNumber="2">
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<materialsCitation id="DB1B374E3042A3EACAE6DD768854D84D" ID-GBIF-Occurrence="1416639170" collectingDate="2003-02-20" collectionCode="UFRJ" collectorName="S. M. Q. Lima, R. Paiva, R. Salles" country="Brazil" location="Municipio do Rio de Janeiro, Campo Grande, Rio Guandu-Mirim, Rio Guandu basin" specimenCode="UFRJ 5999" stateProvince="Estado do Rio de Janeiro" typeStatus="Holotype">
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<typeStatus id="5C0DA5597B4F18B8946DC59DFEE4F009">Holotype</typeStatus>
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.
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<specimenCode id="B56DA232EAB736C85EE62FCBF7117CEA">
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<collectionCode id="DB90995FE5A67162F3E6679CD5FC4D30">UFRJ</collectionCode>
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5999
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</specimenCode>
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, 120.6 mm SL;
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<collectingCountry id="979CAF99AE2EA0AFC91C7B34102C2351">Brazil</collectingCountry>
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:
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<collectingRegion id="79B4B2DB8AB04F1970534DBB9475A265">Estado do Rio de Janeiro</collectingRegion>
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:
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<location id="E813728A67835BFD4EE6806C0191665E" LSID="urn:lsid:plazi:treatment:0B6C8DB3F0D3EED353619E79B2A5871A:E813728A67835BFD4EE6806C0191665E" country="Brazil" name="Municipio do Rio de Janeiro, Campo Grande, Rio Guandu-Mirim, Rio Guandu basin" stateProvince="Estado do Rio de Janeiro">
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<normalizedToken id="701FACAC65C9F0B461B3FF3ABB77E51B" originalValue="Município">Municipio</normalizedToken>
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do Rio de Janeiro, Campo Grande, Rio Guandu-Mirim, Rio Guandu basin
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</location>
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;
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<collectorName id="BE6EFD390C7704EC12723E05355AF54F">S. M. Q. Lima, R. Paiva & R. Salles</collectorName>
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,
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<date id="E2BD7C7B1099EF55638D736C05621838" day="20" month="02" value="2003-02-20" year="2003">
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<collectingDate id="C4E1F985E9BDBFA7F7685E23971CE32A" day="20" month="02" value="2003-02-20" year="2003">20 February 2003</collectingDate>
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</date>
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</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="EFA6FDBCA79F5EF9B81861F2919425F1" type="nomenclature">
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<paragraph id="16A40673BE00B368249709324631AB0A" pageNumber="3">
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<materialsCitation id="FC0AA1A1BBB6441A886537F4BD35AEA5" ID-GBIF-Occurrence="1416639169" collectingDate="2003-02-20" collectionCode="MCP, UFRJ" collectorName="S. M. Q. Lima, R. Paiva, R. Salles" country="Brazil" location="Municipio do Rio de Janeiro, Campo Grande, Rio Guandu-Mirim, Rio Guandu basin" specimenCode="UFRJ 5730, MCP 35028, UFRJ 5732" stateProvince="Estado do Rio de Janeiro" typeStatus="Paratypes">
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<typeStatus id="9B5A5AA321EE1A8EA29D9DA535006985">Paratypes</typeStatus>
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.
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<specimenCode id="BE1BA418D0A4DE458187325B28FF4CB3">
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<collectionCode id="5F7D2BCDBD4767BB9790CCAA354BCAFF">UFRJ</collectionCode>
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5730
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</specimenCode>
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, 10 ex., 116.2-138.7 mm SL;
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<specimenCode id="83F645C3E8A047B64EC21D0D6C0ACD59">
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<collectionCode id="69CA5B3DC8DFFFEA9FAA9BEAF1752F02">MCP</collectionCode>
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35028
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</specimenCode>
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, 4 ex., 112.6-137.8 mm SL;
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<specimenCode id="378F8AF39CE1E9F070B23723F398DE8A">
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<collectionCode id="8DA5E7495DAE098EC2F2CC4052CC80A2">UFRJ</collectionCode>
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5732
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</specimenCode>
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, 2 ex. (c&s), 109.8-111.2 mm SL; all collected with holotype.
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</materialsCitation>
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<materialsCitation id="9F99FFA343224758F173BC278FD9B1CA" ID-GBIF-Occurrence="1416639171" collectingDate="1986-02-02" collectionCode="UFRJ" collectorName="H. N. Cunha" country="Brazil" location="Represa do Mendanha" specimenCode="UFRJ 5399, UFRJ 5733" typeStatus="Paratypes">
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<specimenCode id="BA89A1CD10D6D0A587E62572D4D743CB">
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<collectionCode id="5D710070A03199D175CF924B2DBB1408">UFRJ</collectionCode>
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5399
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</specimenCode>
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, 4 ex., 145.5-204.0 mm SL;
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<specimenCode id="4870ABA55CB23FDBA32626ED459D57A4">
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<collectionCode id="28060893A775C6522B679DA63DAF7A78">UFRJ</collectionCode>
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5733
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</specimenCode>
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, 2 ex. (c&s), 140.4-147.1 mm SL;
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<collectingCountry id="C13B352756DBEE9AC41D9D7F72EDEDE3">Brazil</collectingCountry>
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:
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<location id="C3C784DDC77B258213DA386B4778846A" LSID="urn:lsid:plazi:treatment:0B6C8DB3F0D3EED353619E79B2A5871A:C3C784DDC77B258213DA386B4778846A" country="Brazil" name="Represa do Mendanha">Represa do Mendanha</location>
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;
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<collectorName id="A720039D3333442EFEAA9E1044AD372C">H. N. Cunha</collectorName>
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,
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<date id="3789ABAF437FA1542CF350242AF0722A" day="02" month="02" value="1986-02-02" year="1986">
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<collectingDate id="B80F3BBE13F32FD551CD655BC4214467" day="02" month="02" value="1986-02-02" year="1986">2 February 1986</collectingDate>
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</date>
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</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="BE75D9F619F6A79EF5CFA7ED8DD610D5" type="diagnosis">
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<paragraph id="2E20F12BA6AEF5E3CB4E9CAC90369D1C" pageNumber="3">
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Diagnosis: Distinguished from all other species of the genus by having a broad dark bluish gray stripe along lateral midline of body, restricted to inner layer of tegument, overlapped by superficial dark brown spots. Similar to
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<taxonomicName id="F6EDF522F81971B3D10DBFAEF6979B33" LSID-ZBK="urn:lsid:zoobank.org:act:1CDFD373-4DC7-4347-8567-24DC017A1F1A" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Trichomycterus nigricans Valenciennes 1832:348" order="Siluriformes" pageNumber="3" phylum="Chordata" rank="species" species="nigricans">T. nigricans Valenciennes</taxonomicName>
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and
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<taxonomicName id="7CFDFAE30E6391D4C86883943EC90ACD" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="3" phylum="Chordata" rank="species" species="immaculatus">T. immaculatus (Eigenmann & Eigenmann)</taxonomicName>
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, and distinguished from the remaining species of the southeastern Brazil by having nine pectoral-fin rays (vs. eight or less), anal-fin origin at vertical posterior to dorsal-fin base (vs. through posterior portion of dorsal-fin base), and more odontodes (interopercular 59-70 vs. 30-52, opercular 23-30 vs. 10-20). Readily distinguished from
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<taxonomicName id="CE7A5224BA6B2100C3F0E05414160F97" LSID-ZBK="urn:lsid:zoobank.org:act:1CDFD373-4DC7-4347-8567-24DC017A1F1A" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Trichomycterus nigricans Valenciennes 1832:348" order="Siluriformes" pageNumber="3" phylum="Chordata" rank="species" species="nigricans">T. nigricans</taxonomicName>
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and
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<taxonomicName id="0C498CC59A7F2D6AD3757EAA2AF6194F" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="3" phylum="Chordata" rank="species" species="immaculatus">T. immaculatus</taxonomicName>
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by having longer nasal and maxillary barbels (nasal reaching pectoral fin base, vs. between orbit and opercular patch of odontodes; maxillary reaching anterior third of pectoral fin, vs. to interopercular patch of odontodes). Also distinguished from
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<taxonomicName id="AAB4A165FA4930A2128FCD0BB2787AAF" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="3" phylum="Chordata" rank="species" species="immaculatus">T. immaculatus</taxonomicName>
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by having a single median third supraorbital pore (vs. third supraorbital pore paired). This new taxon is unique among species of southeastern Brazil by having a dark gray opercular patch of odontodes (vs. light yellow). It is also the biggest species of this region, reaching about 200 mm SL (vs. 50-150 mm SL).
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</paragraph>
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</subSubSection>
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<subSubSection id="6F0B1603CAEF2CC69E938B3D305ECC25" type="description">
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<paragraph id="4F2F5FBF286FBC0538FE9977DCEDB767" pageNumber="3">Description: Morphometric data for holotype and paratypes given in Table 1. Dorsalfin origin in vertical between centrum of 17th and 19th vertebrae. Anal-fin origin in vertical posterior to dorsal-fin base, and through centrum of 23rd or 24th vertebra. Pectoral fin nearly triangular, lateral and posterior edges slightly convex. First pectoral-fin ray terminating in long filament, about 50% pectoral-fin length. Pelvic fin length about 2/3 anal fin length, tip not reaching anal fin nor covering urogenital pore, in vertical through base of 2nd branched dorsal-fin ray; pelvic-fin bases separated by interspace. Caudal fin truncate. Dorsal-fin rays 12-13; anal-fin rays 10-11; pectoral-fin rays 9; pelvic-fin rays 5; caudalfin principal rays 13, dorsal procurrent rays 15, ventral procurrent rays 13-14. Total vertebrae36-37; pleural ribs 12-13. Upper hypural plates separated, dorsal plate slightly wider than ventral plate.</paragraph>
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<paragraph id="981CE4A021234F819B551818D37308D9" pageNumber="3">Head trapezoidal in dorsal view. Maxilla about as long as premaxilla. Teeth conical. Tip of nasal barbel reaching pectoral-fin base. Tip of maxillary barbel reaching anterior third of pectoral fin. Tip of rictal barbel reaching behind opercular patch of odontodes. Branchiostegal rays 7-8. Interopercular odontodes 59-60; opercular patch of odontodes wide, with 23-24 odontodes; odontodes conical, opercular odontodes wider than interopercular odontodes; opercular odontodes arranged vertically. Medial margin of autopalatine slightly concave; posterior process of autopalatine about half autopalatine length without posterior process. Lacrimal about one fourth supraorbital length; supraorbital rodlike. Metapterygoid small, without distinct processes. Anterodorsal surface of hyomandibula with weak concavity. Single median third supraorbital pore. Anterior section of infraorbital canal present.</paragraph>
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<paragraph id="00604C7BB4851A78C17724F2AC7D23C0" pageNumber="4">Coloration: Side of body and head light yellowish brown, slightly greenish between dorsal surface of head and laterodorsal portion of flank anterior to dorsal-fin origin. Slightly purplish on dorsal portion of caudal peduncle; orange on ventral portion of flank between pelvic-fin base and anterior portion of caudal peduncle. Rounded brown blotches on dorsum, dorsal half of flank, and head, both in superficial and inner layer of integument, blotches of distinct layers sometimes overlapped. Broad dark bluish gray stripe along lateral midline, restricted to inner layer of tegument. Superficial brown dots below lateral midline; venter light brownish yellow. Opercular patch of odontodes dark gray, interopercular patch of odontodes pale yellow; barbels gray, dark brown on basal portion. Iris dark green. Dorsal fin orange with brown dots on basal portion, yellowish hyaline on distal portion. Caudal fin dark yellow with vertical rows of small dark brown spots, distal fourth hyaline. Pectoral, pelvic and anal fins pale orange with brown dots; pectoral-fin filament light gray.</paragraph>
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</subSubSection>
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<subSubSection id="8B8A0DE83E1C66C9AF66C33056C23657" type="distribution">
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<paragraph id="638A644AC1A74FCC7783BAC243CBCAA8" pageNumber="5">Distribution: Upper Rio Guandu basin, Serra do Mendanha, southeastern Brazil.</paragraph>
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</subSubSection>
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<subSubSection id="0D081BECCD75207986397C693D3C9147" type="biology_ecology">
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<paragraph id="9BA9E139E7F1D1EB7825575377E782D6" pageNumber="5">Habitat notes: The type locality is a clear water stream with strong current. All specimens, however, were found in still water between 50 and 200 cm deep, hidden under rocks.</paragraph>
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</subSubSection>
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<subSubSection id="CB54FFFABD6C6730FFAD8D4AB980B565" type="etymology">
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<paragraph id="235BBFB5830823739F071275A61382A3" pageNumber="5">Etymology: From the Latin giganteus (gigantic) referring to the large size of the new species, the biggest among species from southeastern Brazil.</paragraph>
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</subSubSection>
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<subSubSection id="88A5CA1943EED7733BBD05B78A25DBDF" type="discussion">
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<paragraph id="E3C8487E0DA3C353D09E2E92368FE8E6" pageNumber="5">Discussion</paragraph>
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<paragraph id="C011A57F30A1C9BEC3260DAEC3074EAB" pageNumber="5">
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Arratia (1998) provided a detailed redescription of the type species of the genus,
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<taxonomicName id="088E1FA10A17F15DA1584CE84C62BACB" LSID-ZBK="urn:lsid:zoobank.org:act:1CDFD373-4DC7-4347-8567-24DC017A1F1A" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Trichomycterus nigricans Valenciennes 1832:348" order="Siluriformes" pageNumber="5" phylum="Chordata" rank="species" species="nigricans">Trichomycterus nigricans</taxonomicName>
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based on a single specimen deposited in the
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<normalizedToken id="47F99A110BEA71A34D129BFE038B90E2" originalValue="Muséum">Museum</normalizedToken>
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National d`Historie Naturelle, Paris. This redescription reveals some uncommon features among species from southeastern Brazil that are shared by
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<taxonomicName id="10AB5876F7DEC7EAD9C846C72225D6B1" LSID-ZBK="urn:lsid:zoobank.org:act:1CDFD373-4DC7-4347-8567-24DC017A1F1A" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Trichomycterus nigricans Valenciennes 1832:348" order="Siluriformes" pageNumber="5" phylum="Chordata" rank="species" species="nigricans">T. nigricans</taxonomicName>
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,
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<taxonomicName id="717392D882FC91E5A1C3120599EEBC1C" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" order="Siluriformes" pageNumber="5" phylum="Chordata" rank="species" species="immaculatus">T. immaculatus</taxonomicName>
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, and
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<taxonomicName id="9C690E97D6262A6B57C82BC693CC5BFE" LSID-ZBK="urn:lsid:zoobank.org:act:197E097C-2451-43DE-B902-111021AAEB5D" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Trichomycterus giganteus Lima & Costa 2004:2" order="Siluriformes" pageNumber="5" phylum="Chordata" rank="species" species="giganteus">T. giganteus</taxonomicName>
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, as noted in the present study: nine pectoral-fin rays and high number of odontodes in interopercular patch of odontodes (59-69). However, it is not clear at the present if these conditions are evidence of close relationships, since both may occur or not in other Trichomycterinae taxa from the Andean region, making polarization of character states ambiguous. Another interesting point concerning
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<taxonomicName id="24B3297DA0E0458E1A3B3C63139092C9" LSID-ZBK="urn:lsid:zoobank.org:act:197E097C-2451-43DE-B902-111021AAEB5D" family="Trichomycteridae" genus="Trichomycterus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Trichomycterus giganteus Lima & Costa 2004:2" order="Siluriformes" pageNumber="5" phylum="Chordata" rank="species" species="giganteus">Trichomycterus giganteus</taxonomicName>
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is its very distinctive size, the biggest among species from southeastern Brazil. Surprisingly, this species is endemic to the Rio de Janeiro, one of the oldest and largest cities in South America, demonstrating the poor knowledge of trichomycterid diversity.
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</paragraph>
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</subSubSection>
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</treatment>
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</document>
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