A new species of Characidium (Characiformes: Crenuchidae) from the Chapada dos Veadeiros, Goiás, Brazil
Abstract A new species of Characidium is described from the tributaries of the rio Tocantinzinho, rio Tocantins basin, located in the southern portion of the Chapada dos Veadeiros, at about 1,200 meters of elevation, Goiás, Brazil. The new species can be diagnosed by an unusual combination of two ap...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ictiologia
2021-06-01
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| Series: | Neotropical Ichthyology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000200210&tlng=en |
| _version_ | 1818975152833036288 |
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| author | Marcelo R. S. Melo Bárbara B. Bouquerel Flávia T. Masumoto Rayane S. França André L. Netto-Ferreira |
| author_facet | Marcelo R. S. Melo Bárbara B. Bouquerel Flávia T. Masumoto Rayane S. França André L. Netto-Ferreira |
| author_sort | Marcelo R. S. Melo |
| collection | DOAJ |
| description | Abstract A new species of Characidium is described from the tributaries of the rio Tocantinzinho, rio Tocantins basin, located in the southern portion of the Chapada dos Veadeiros, at about 1,200 meters of elevation, Goiás, Brazil. The new species can be diagnosed by an unusual combination of two apomorphic features present in distinct clades of Characidium, the presence of a scaleless isthmus in allied to with a single row of dentary teeth. Additionally, the new species has a unique color pattern of inconspicuous vertical bars disconnected from the dorsal midline, forming seven to nine square blotches along body sides, and the presence of a dark saddle-shaped mark at the dorsal-fin base. Osteologically, it can be diagnosed by having the first and second anal-fin proximal radials fused and contacting the third hemal spine, which is branched. The new species also has a peculiar, unusual variation of fin-ray counts among its congeners. |
| first_indexed | 2024-12-20T15:51:25Z |
| format | Article |
| id | doaj.art-d7ec3c8f87384c8e833f841391c83dcb |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-12-20T15:51:25Z |
| publishDate | 2021-06-01 |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-d7ec3c8f87384c8e833f841391c83dcb2022-12-21T19:34:40ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02242021-06-0119210.1590/1982-0224-2020-0152A new species of Characidium (Characiformes: Crenuchidae) from the Chapada dos Veadeiros, Goiás, BrazilMarcelo R. S. Melohttps://orcid.org/0000-0002-4757-8286Bárbara B. Bouquerelhttps://orcid.org/0000-0002-5260-3562Flávia T. Masumotohttps://orcid.org/0000-0002-1692-414XRayane S. Françahttps://orcid.org/0000-0003-1662-9607André L. Netto-Ferreirahttps://orcid.org/0000-0002-3096-0411Abstract A new species of Characidium is described from the tributaries of the rio Tocantinzinho, rio Tocantins basin, located in the southern portion of the Chapada dos Veadeiros, at about 1,200 meters of elevation, Goiás, Brazil. The new species can be diagnosed by an unusual combination of two apomorphic features present in distinct clades of Characidium, the presence of a scaleless isthmus in allied to with a single row of dentary teeth. Additionally, the new species has a unique color pattern of inconspicuous vertical bars disconnected from the dorsal midline, forming seven to nine square blotches along body sides, and the presence of a dark saddle-shaped mark at the dorsal-fin base. Osteologically, it can be diagnosed by having the first and second anal-fin proximal radials fused and contacting the third hemal spine, which is branched. The new species also has a peculiar, unusual variation of fin-ray counts among its congeners.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000200210&tlng=enCerradoCharacidium stigmosumEndemismRio Tocantins basinTaxonomy |
| spellingShingle | Marcelo R. S. Melo Bárbara B. Bouquerel Flávia T. Masumoto Rayane S. França André L. Netto-Ferreira A new species of Characidium (Characiformes: Crenuchidae) from the Chapada dos Veadeiros, Goiás, Brazil Neotropical Ichthyology Cerrado Characidium stigmosum Endemism Rio Tocantins basin Taxonomy |
| title | A new species of Characidium (Characiformes: Crenuchidae) from the Chapada dos Veadeiros, Goiás, Brazil |
| title_full | A new species of Characidium (Characiformes: Crenuchidae) from the Chapada dos Veadeiros, Goiás, Brazil |
| title_fullStr | A new species of Characidium (Characiformes: Crenuchidae) from the Chapada dos Veadeiros, Goiás, Brazil |
| title_full_unstemmed | A new species of Characidium (Characiformes: Crenuchidae) from the Chapada dos Veadeiros, Goiás, Brazil |
| title_short | A new species of Characidium (Characiformes: Crenuchidae) from the Chapada dos Veadeiros, Goiás, Brazil |
| title_sort | new species of characidium characiformes crenuchidae from the chapada dos veadeiros goias brazil |
| topic | Cerrado Characidium stigmosum Endemism Rio Tocantins basin Taxonomy |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000200210&tlng=en |
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