Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil
The species of the genus Trichomycterus inhabiting the laguna dos Patos system are reviewed and five species are recognized. Trichomycterus tropeiro Ferrer & Malabarba has a restricted range and is endemic to the uppermost portion of the rio das Antas. Trichomycterus balios, n. sp., is distribut...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ictiologia
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| Series: | Neotropical Ichthyology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200217&lng=en&tlng=en |
| _version_ | 1811232583296483328 |
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| author | Juliano Ferrer Luiz R. Malabarba |
| author_facet | Juliano Ferrer Luiz R. Malabarba |
| author_sort | Juliano Ferrer |
| collection | DOAJ |
| description | The species of the genus Trichomycterus inhabiting the laguna dos Patos system are reviewed and five species are recognized. Trichomycterus tropeiro Ferrer & Malabarba has a restricted range and is endemic to the uppermost portion of the rio das Antas. Trichomycterus balios, n. sp., is distributed in the upper portion of the rio das Antas and rio Caí basins. Trichomycterus diatropoporos, n. sp., is endemic to the rio da Prata basin, a tributary of the rio das Antas. Trichomycterus poikilos, n. sp., is widely distributed in the upper portion of the rio Jacuí basin and tributaries of the rio Taquari-Antas. Trichomycterus brachykechenos, n. sp., is endemic to the upper portion of the rio dos Sinos. The new species are distinguishable from most congeners, except for T. davisi, T. mboycy, T. naipi, T. payaya, T. papilliferus, T. perkos, T. plumbeus, and T. tropeiro by the lower number of pectoral-fin rays (I+5-6) and by the first pectoral-fin ray not prolonged as a filament. Other characters distinguish the new taxa from these eight species. The distribution of the genus in the laguna dos Patos system is discussed and a taxonomic key is provided. |
| first_indexed | 2024-04-12T11:05:20Z |
| format | Article |
| id | doaj.art-2566bae73a17416880feb3ca85d2282c |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-04-12T11:05:20Z |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-2566bae73a17416880feb3ca85d2282c2022-12-22T03:35:47ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-022411221724610.1590/S1679-62252013000200001S1679-62252013000200217Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern BrazilJuliano FerrerLuiz R. MalabarbaThe species of the genus Trichomycterus inhabiting the laguna dos Patos system are reviewed and five species are recognized. Trichomycterus tropeiro Ferrer & Malabarba has a restricted range and is endemic to the uppermost portion of the rio das Antas. Trichomycterus balios, n. sp., is distributed in the upper portion of the rio das Antas and rio Caí basins. Trichomycterus diatropoporos, n. sp., is endemic to the rio da Prata basin, a tributary of the rio das Antas. Trichomycterus poikilos, n. sp., is widely distributed in the upper portion of the rio Jacuí basin and tributaries of the rio Taquari-Antas. Trichomycterus brachykechenos, n. sp., is endemic to the upper portion of the rio dos Sinos. The new species are distinguishable from most congeners, except for T. davisi, T. mboycy, T. naipi, T. payaya, T. papilliferus, T. perkos, T. plumbeus, and T. tropeiro by the lower number of pectoral-fin rays (I+5-6) and by the first pectoral-fin ray not prolonged as a filament. Other characters distinguish the new taxa from these eight species. The distribution of the genus in the laguna dos Patos system is discussed and a taxonomic key is provided.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200217&lng=en&tlng=enEndemismNeotropicalRio Jacuí basinTrichomycterus tropeiroTrichomycterinae |
| spellingShingle | Juliano Ferrer Luiz R. Malabarba Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil Neotropical Ichthyology Endemism Neotropical Rio Jacuí basin Trichomycterus tropeiro Trichomycterinae |
| title | Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil |
| title_full | Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil |
| title_fullStr | Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil |
| title_full_unstemmed | Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil |
| title_short | Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil |
| title_sort | taxonomic review of the genus trichomycterus valenciennes siluriformes trichomycteridae from the laguna dos patos system southern brazil |
| topic | Endemism Neotropical Rio Jacuí basin Trichomycterus tropeiro Trichomycterinae |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200217&lng=en&tlng=en |
| work_keys_str_mv | AT julianoferrer taxonomicreviewofthegenustrichomycterusvalenciennessiluriformestrichomycteridaefromthelagunadospatossystemsouthernbrazil AT luizrmalabarba taxonomicreviewofthegenustrichomycterusvalenciennessiluriformestrichomycteridaefromthelagunadospatossystemsouthernbrazil |