Artigo

Leporinus amazonicus, a new anostomid species from the Amazon lowlands, Brazil (Osteichthyes: Characiformes)

Leporinus amazonicus, a new species of anostomid fish, is described from the central portion of the Amazon lowlands. It is a medium-sized fish (up to 250 mm SL) with streamlined body (maximum body height approximately 25% of SL) and high lateral line scale counts (45-47). Leporinus amazonicus is mor...

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Autor principal: Santos, Geraldo Mendes dos
Outros Autores: Zuanon, Jansen
Grau: Artigo
Idioma: English
Publicado em: Zootaxa 2020
Assuntos:
Anostomidae
Characiformes
Leporinus
Ostariophysi
Osteichthyes
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/18549
id oai:repositorio:1-18549
recordtype dspace
spelling oai:repositorio:1-18549 Leporinus amazonicus, a new anostomid species from the Amazon lowlands, Brazil (Osteichthyes: Characiformes) Santos, Geraldo Mendes dos Zuanon, Jansen Anostomidae Characiformes Leporinus Ostariophysi Osteichthyes Leporinus amazonicus, a new species of anostomid fish, is described from the central portion of the Amazon lowlands. It is a medium-sized fish (up to 250 mm SL) with streamlined body (maximum body height approximately 25% of SL) and high lateral line scale counts (45-47). Leporinus amazonicus is morphologically similar to the slender bodied species L. cylindriformis Borodin, 1929 and L. brunneus Myers, 1950, but differs from them by the higher lateral line scale count (41-43 in L. cylindriformis and 36-42 in L. brunneus) and by a different color pattern. Moreover, L. amazonicus is apparently restricted to the white waters of the Amazon lowlands whereas L. cylindriformis and L. brunneus are known only from clear and black waters of several of the Rio Amazonas tributaries. Despite intensive collecting efforts historically developed in Brazilian Central Amazon, just a few specimens of L. amazonicus were caught, indicating that the new species is relatively rare in that area and apparently do not join in large schools. However, this supposed rarity may be biased by the concentration of our collecting efforts around Manaus, which may represent a marginal distribution of this species. Nevertheless, the presence of a new species of a taxonomically well-known fish family in an area intensively exploited by commercial and subsistence fisheries evidences the need for fish species surveys in the Amazon, even in supposedly well sampled sites and around the most populous areas. Copyright © 2008 Magnolia Press. 2020-06-15T22:02:05Z 2020-06-15T22:02:05Z 2008 Artigo https://repositorio.inpa.gov.br/handle/1/18549 en Volume 1815, Pags. 35-42 Restrito Zootaxa
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Anostomidae
Characiformes
Leporinus
Ostariophysi
Osteichthyes
spellingShingle Anostomidae
Characiformes
Leporinus
Ostariophysi
Osteichthyes
Santos, Geraldo Mendes dos
Leporinus amazonicus, a new anostomid species from the Amazon lowlands, Brazil (Osteichthyes: Characiformes)
topic_facet Anostomidae
Characiformes
Leporinus
Ostariophysi
Osteichthyes
description Leporinus amazonicus, a new species of anostomid fish, is described from the central portion of the Amazon lowlands. It is a medium-sized fish (up to 250 mm SL) with streamlined body (maximum body height approximately 25% of SL) and high lateral line scale counts (45-47). Leporinus amazonicus is morphologically similar to the slender bodied species L. cylindriformis Borodin, 1929 and L. brunneus Myers, 1950, but differs from them by the higher lateral line scale count (41-43 in L. cylindriformis and 36-42 in L. brunneus) and by a different color pattern. Moreover, L. amazonicus is apparently restricted to the white waters of the Amazon lowlands whereas L. cylindriformis and L. brunneus are known only from clear and black waters of several of the Rio Amazonas tributaries. Despite intensive collecting efforts historically developed in Brazilian Central Amazon, just a few specimens of L. amazonicus were caught, indicating that the new species is relatively rare in that area and apparently do not join in large schools. However, this supposed rarity may be biased by the concentration of our collecting efforts around Manaus, which may represent a marginal distribution of this species. Nevertheless, the presence of a new species of a taxonomically well-known fish family in an area intensively exploited by commercial and subsistence fisheries evidences the need for fish species surveys in the Amazon, even in supposedly well sampled sites and around the most populous areas. Copyright © 2008 Magnolia Press.
format Artigo
author Santos, Geraldo Mendes dos
author2 Zuanon, Jansen
author2Str Zuanon, Jansen
title Leporinus amazonicus, a new anostomid species from the Amazon lowlands, Brazil (Osteichthyes: Characiformes)
title_short Leporinus amazonicus, a new anostomid species from the Amazon lowlands, Brazil (Osteichthyes: Characiformes)
title_full Leporinus amazonicus, a new anostomid species from the Amazon lowlands, Brazil (Osteichthyes: Characiformes)
title_fullStr Leporinus amazonicus, a new anostomid species from the Amazon lowlands, Brazil (Osteichthyes: Characiformes)
title_full_unstemmed Leporinus amazonicus, a new anostomid species from the Amazon lowlands, Brazil (Osteichthyes: Characiformes)
title_sort leporinus amazonicus, a new anostomid species from the amazon lowlands, brazil (osteichthyes: characiformes)
publisher Zootaxa
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/18549
_version_ 1787142770981339136
score 11.755432

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