A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the central and western Amazon and rio Paraná-Paraguai basins
A new species of Hemigrammus is described from the middle rio Solimões/Amazonas and tributaries, upper and middle rio Madeira, and rio Paraná-Paraguai basins in Brazil and Paraguay. The new species is most similar among congeners with Hemigrammus marginatus, with which it shares similar caudal-fin p...
| Autor principal: | Ota, Rafaela Priscila |
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| Outros Autores: | Lima, Flávio César Thadeo, Pavanelli, C. S. |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Zootaxa
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17538 |
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oai:repositorio:1-17538 |
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dspace |
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oai:repositorio:1-17538 A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the central and western Amazon and rio Paraná-Paraguai basins Ota, Rafaela Priscila Lima, Flávio César Thadeo Pavanelli, C. S. Characidae Characiformes Diancistrus Hemigrammus Hemigrammus Marginatus Hyphessobrycon Anatomy And Histology Animals Animals Dispersal Animals Structures Body Size Brasil Characidae Classification Ecosystem Female Growth, Development And Aging Male Organ Size Animals Distribution Animals Structures Animal Body Size Brasil Characidae Ecosystem Female Male Organ Size A new species of Hemigrammus is described from the middle rio Solimões/Amazonas and tributaries, upper and middle rio Madeira, and rio Paraná-Paraguai basins in Brazil and Paraguay. The new species is most similar among congeners with Hemigrammus marginatus, with which it shares similar caudal-fin pigmentation pattern. The new species can be distinguished from Hemigrammus marginatus by possessing two conspicuous dark patches of pigmentation on caudal fin, occupying most of caudal-fin lobes, except the tips, by having two dark narrow stripes along anal-fin base, and by possessing 5-8 pored lateral line scales. The new species differs from Hyphessobrycon diancistrus, which is similar in color pattern and general body shape, by the presence of small scales on caudal-fin lobes, occupying approximately its basal third, by the presence of two narrow stripes along anal fin base, and by the absence of bony hooks on analfin in mature males. The occurrence of the new species in both Amazon and rio Paraná-Paraguai basins is discussed in order to clarify and expand recent discussions on the biogeographical relationships between both river systems. Copyright © 2015 Magnolia Press. 2020-06-15T21:48:14Z 2020-06-15T21:48:14Z 2015 Artigo https://repositorio.inpa.gov.br/handle/1/17538 10.11646/zootaxa.3948.2.4 en Volume 3948, Número 2, Pags. 218-232 Restrito Zootaxa |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Characidae Characiformes Diancistrus Hemigrammus Hemigrammus Marginatus Hyphessobrycon Anatomy And Histology Animals Animals Dispersal Animals Structures Body Size Brasil Characidae Classification Ecosystem Female Growth, Development And Aging Male Organ Size Animals Distribution Animals Structures Animal Body Size Brasil Characidae Ecosystem Female Male Organ Size |
| spellingShingle |
Characidae Characiformes Diancistrus Hemigrammus Hemigrammus Marginatus Hyphessobrycon Anatomy And Histology Animals Animals Dispersal Animals Structures Body Size Brasil Characidae Classification Ecosystem Female Growth, Development And Aging Male Organ Size Animals Distribution Animals Structures Animal Body Size Brasil Characidae Ecosystem Female Male Organ Size Ota, Rafaela Priscila A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the central and western Amazon and rio Paraná-Paraguai basins |
| topic_facet |
Characidae Characiformes Diancistrus Hemigrammus Hemigrammus Marginatus Hyphessobrycon Anatomy And Histology Animals Animals Dispersal Animals Structures Body Size Brasil Characidae Classification Ecosystem Female Growth, Development And Aging Male Organ Size Animals Distribution Animals Structures Animal Body Size Brasil Characidae Ecosystem Female Male Organ Size |
| description |
A new species of Hemigrammus is described from the middle rio Solimões/Amazonas and tributaries, upper and middle rio Madeira, and rio Paraná-Paraguai basins in Brazil and Paraguay. The new species is most similar among congeners with Hemigrammus marginatus, with which it shares similar caudal-fin pigmentation pattern. The new species can be distinguished from Hemigrammus marginatus by possessing two conspicuous dark patches of pigmentation on caudal fin, occupying most of caudal-fin lobes, except the tips, by having two dark narrow stripes along anal-fin base, and by possessing 5-8 pored lateral line scales. The new species differs from Hyphessobrycon diancistrus, which is similar in color pattern and general body shape, by the presence of small scales on caudal-fin lobes, occupying approximately its basal third, by the presence of two narrow stripes along anal fin base, and by the absence of bony hooks on analfin in mature males. The occurrence of the new species in both Amazon and rio Paraná-Paraguai basins is discussed in order to clarify and expand recent discussions on the biogeographical relationships between both river systems. Copyright © 2015 Magnolia Press. |
| format |
Artigo |
| author |
Ota, Rafaela Priscila |
| author2 |
Lima, Flávio César Thadeo Pavanelli, C. S. |
| author2Str |
Lima, Flávio César Thadeo Pavanelli, C. S. |
| title |
A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the central and western Amazon and rio Paraná-Paraguai basins |
| title_short |
A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the central and western Amazon and rio Paraná-Paraguai basins |
| title_full |
A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the central and western Amazon and rio Paraná-Paraguai basins |
| title_fullStr |
A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the central and western Amazon and rio Paraná-Paraguai basins |
| title_full_unstemmed |
A new species of Hemigrammus Gill, 1858 (Characiformes: Characidae) from the central and western Amazon and rio Paraná-Paraguai basins |
| title_sort |
new species of hemigrammus gill, 1858 (characiformes: characidae) from the central and western amazon and rio paraná-paraguai basins |
| publisher |
Zootaxa |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17538 |
| _version_ |
1787142602680696832 |
| score |
11.755432 |