Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil
Abstract Two new species of Corydoras are described from the rio Madeira basin, Brazil. The intermediate long-snouted new species can be distinguished from its congeners by presenting the following combination of features: posterior margin of dorsal-fin spine with laminar serrations directed towards...
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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=S1679-62252016000100208&lng=en&tlng=en |
| _version_ | 1819260078385004544 |
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| author | Luiz Fernando Caserta Tencatt Willian Massaharu Ohara |
| author_facet | Luiz Fernando Caserta Tencatt Willian Massaharu Ohara |
| author_sort | Luiz Fernando Caserta Tencatt |
| collection | DOAJ |
| description | Abstract Two new species of Corydoras are described from the rio Madeira basin, Brazil. The intermediate long-snouted new species can be distinguished from its congeners by presenting the following combination of features: posterior margin of dorsal-fin spine with laminar serrations directed towards the origin of the spine; presence of two longitudinal black stripes on flanks; anterior portion of dorsal fin with sparse black chromatophores, not forming any conspicuous pattern; absence of a conspicuous black marbled coloration pattern on head; black spots on caudal fin, some spots arranged, forming transversal bars; and brownish dorsal-fin spine. The short-snouted new speciescan be distinguished from its congeners by the following combination of features: short mesethmoid; posterior laminar expansion of infraorbital 2 very reduced, not in contact with compound pterotic; two or three longitudinal black stripes on flanks; absence of an oblique or vertical black blotch across the eye; anterior portion of dorsal fin with sparse black chromatophores, not forming any conspicuous pattern; and ventral surface of trunk naked or covered by sparse platelets. |
| first_indexed | 2024-12-23T19:20:11Z |
| format | Article |
| id | doaj.art-de549f696d7a412581bc712ceb0f04e2 |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-12-23T19:20:11Z |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-de549f696d7a412581bc712ceb0f04e22022-12-21T17:34:11ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-022414110.1590/1982-0224-20150063S1679-62252016000100208Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, BrazilLuiz Fernando Caserta TencattWillian Massaharu OharaAbstract Two new species of Corydoras are described from the rio Madeira basin, Brazil. The intermediate long-snouted new species can be distinguished from its congeners by presenting the following combination of features: posterior margin of dorsal-fin spine with laminar serrations directed towards the origin of the spine; presence of two longitudinal black stripes on flanks; anterior portion of dorsal fin with sparse black chromatophores, not forming any conspicuous pattern; absence of a conspicuous black marbled coloration pattern on head; black spots on caudal fin, some spots arranged, forming transversal bars; and brownish dorsal-fin spine. The short-snouted new speciescan be distinguished from its congeners by the following combination of features: short mesethmoid; posterior laminar expansion of infraorbital 2 very reduced, not in contact with compound pterotic; two or three longitudinal black stripes on flanks; absence of an oblique or vertical black blotch across the eye; anterior portion of dorsal fin with sparse black chromatophores, not forming any conspicuous pattern; and ventral surface of trunk naked or covered by sparse platelets.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100208&lng=en&tlng=enAmazonCorydoradinaeMato Grossorio AripuanãTaxonomy |
| spellingShingle | Luiz Fernando Caserta Tencatt Willian Massaharu Ohara Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil Neotropical Ichthyology Amazon Corydoradinae Mato Grosso rio Aripuanã Taxonomy |
| title | Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil |
| title_full | Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil |
| title_fullStr | Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil |
| title_full_unstemmed | Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil |
| title_short | Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil |
| title_sort | two new species of corydoras lacepede 1803 siluriformes callichthyidae from the rio madeira basin brazil |
| topic | Amazon Corydoradinae Mato Grosso rio Aripuanã Taxonomy |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100208&lng=en&tlng=en |
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