A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, Peru
A new characid species, Hemibrycon divisorensis, is described from the río Ucayali drainage, Loreto, Peru. The new species is distinguished from all Hemibrycon species by the presence of a wide black asymmetrical spot covering base of caudal-fin rays and extending along entire length of caudal-fin r...
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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=S1679-62252007000300003&lng=en&tlng=en |
| _version_ | 1818322480571351040 |
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| author | Vinicius A. Bertaco Luiz R. Malabarba Max Hidalgo Hernán Ortega |
| author_facet | Vinicius A. Bertaco Luiz R. Malabarba Max Hidalgo Hernán Ortega |
| author_sort | Vinicius A. Bertaco |
| collection | DOAJ |
| description | A new characid species, Hemibrycon divisorensis, is described from the río Ucayali drainage, Loreto, Peru. The new species is distinguished from all Hemibrycon species by the presence of a wide black asymmetrical spot covering base of caudal-fin rays and extending along entire length of caudal-fin rays 9 to 12-13 (except from H. surinamensis), and a black band in the lower half of the caudal peduncle extending from the region above the last anal-fin rays to the caudal-fin base. Furthermore, it is distinguished from most species of the genus by the number of scale rows below the lateral line (4-5 vs 5-9), except H. jabonero, H. microformaa, H. orcesi, and H. surinamensis. It differs from these species by scale and fin ray counts and color pattern. The lack of a supraorbital in Hemibrycon species is discussed and confirmed. |
| first_indexed | 2024-12-13T10:57:28Z |
| format | Article |
| id | doaj.art-81a8433592a74f048a4598cdb2dd8387 |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-12-13T10:57:28Z |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-81a8433592a74f048a4598cdb2dd83872022-12-21T23:49:25ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02245325125710.1590/S1679-62252007000300003S1679-62252007000300003A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, PeruVinicius A. Bertaco0Luiz R. Malabarba1Max Hidalgo2Hernán Ortega3Pontifícia Universidade Católica do Rio Grande do SulPontifícia Universidade Católica do Rio Grande do SulUniversidad Nacional Mayor de San MarcosUniversidad Nacional Mayor de San MarcosA new characid species, Hemibrycon divisorensis, is described from the río Ucayali drainage, Loreto, Peru. The new species is distinguished from all Hemibrycon species by the presence of a wide black asymmetrical spot covering base of caudal-fin rays and extending along entire length of caudal-fin rays 9 to 12-13 (except from H. surinamensis), and a black band in the lower half of the caudal peduncle extending from the region above the last anal-fin rays to the caudal-fin base. Furthermore, it is distinguished from most species of the genus by the number of scale rows below the lateral line (4-5 vs 5-9), except H. jabonero, H. microformaa, H. orcesi, and H. surinamensis. It differs from these species by scale and fin ray counts and color pattern. The lack of a supraorbital in Hemibrycon species is discussed and confirmed.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300003&lng=en&tlng=enNeotropicalAmazon basinTaxonomySupraorbitalFin hooksCarlastyanax |
| spellingShingle | Vinicius A. Bertaco Luiz R. Malabarba Max Hidalgo Hernán Ortega A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, Peru Neotropical Ichthyology Neotropical Amazon basin Taxonomy Supraorbital Fin hooks Carlastyanax |
| title | A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, Peru |
| title_full | A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, Peru |
| title_fullStr | A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, Peru |
| title_full_unstemmed | A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, Peru |
| title_short | A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, Peru |
| title_sort | new species of hemibrycon teleostei characiformes characidae from the rio ucayali drainage sierra del divisor peru |
| topic | Neotropical Amazon basin Taxonomy Supraorbital Fin hooks Carlastyanax |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300003&lng=en&tlng=en |
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