Magosternarchus, a new genus with two new species of electric fishes (Gymnotiformes: Apteronotidae) from the Amazon River Basin, South America
A new group of predaceous apteronotid electric fishes is described from recent trawl collections made in large, white- and black-water river channels of the Amazon Basin in Brazil. Magosternarchus, n. gen., is diagnosed by greatly enlarged jaws and teeth. The type species, Magosternarchus raptor, n....
| Autor principal: | Lundberg, John G. |
|---|---|
| Outros Autores: | Fernandes, Cristina Cox, Albert, James Spurling, García, Marcelo |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Copeia
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/19383 |
| id |
oai:repositorio:1-19383 |
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| recordtype |
dspace |
| spelling |
oai:repositorio:1-19383 Magosternarchus, a new genus with two new species of electric fishes (Gymnotiformes: Apteronotidae) from the Amazon River Basin, South America Lundberg, John G. Fernandes, Cristina Cox Albert, James Spurling García, Marcelo Apteronotidae Gymnotiformes Pieris Brassicae Pisces Raptores Sternarchella A new group of predaceous apteronotid electric fishes is described from recent trawl collections made in large, white- and black-water river channels of the Amazon Basin in Brazil. Magosternarchus, n. gen., is diagnosed by greatly enlarged jaws and teeth. The type species, Magosternarchus raptor, n. sp., possessed uniquely enlarged premaxillary bones and an associated hypertrophied mesethmoid. Magosternarchus duccis, n. sp., is unique in its strongly projecting lower jaw that includes and often extends dorsal to the upper jaw and snout. The only identifiable stomach contents in specimens of both species of Magosternarchus are tails of other gymnotiform fishes. Shared features of the ethmoid and jaw bones, mesopterygoid, opercle, gillrakers, basibranchials, and infraorbital later- osensory canal suggest that Magosternarchus is most closely related to Sternarchella. 2020-06-15T22:08:02Z 2020-06-15T22:08:02Z 1996 Artigo https://repositorio.inpa.gov.br/handle/1/19383 10.2307/1447530 en Volume 3, Pags. 657-670 Restrito Copeia |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Apteronotidae Gymnotiformes Pieris Brassicae Pisces Raptores Sternarchella |
| spellingShingle |
Apteronotidae Gymnotiformes Pieris Brassicae Pisces Raptores Sternarchella Lundberg, John G. Magosternarchus, a new genus with two new species of electric fishes (Gymnotiformes: Apteronotidae) from the Amazon River Basin, South America |
| topic_facet |
Apteronotidae Gymnotiformes Pieris Brassicae Pisces Raptores Sternarchella |
| description |
A new group of predaceous apteronotid electric fishes is described from recent trawl collections made in large, white- and black-water river channels of the Amazon Basin in Brazil. Magosternarchus, n. gen., is diagnosed by greatly enlarged jaws and teeth. The type species, Magosternarchus raptor, n. sp., possessed uniquely enlarged premaxillary bones and an associated hypertrophied mesethmoid. Magosternarchus duccis, n. sp., is unique in its strongly projecting lower jaw that includes and often extends dorsal to the upper jaw and snout. The only identifiable stomach contents in specimens of both species of Magosternarchus are tails of other gymnotiform fishes. Shared features of the ethmoid and jaw bones, mesopterygoid, opercle, gillrakers, basibranchials, and infraorbital later- osensory canal suggest that Magosternarchus is most closely related to Sternarchella. |
| format |
Artigo |
| author |
Lundberg, John G. |
| author2 |
Fernandes, Cristina Cox Albert, James Spurling García, Marcelo |
| author2Str |
Fernandes, Cristina Cox Albert, James Spurling García, Marcelo |
| title |
Magosternarchus, a new genus with two new species of electric fishes (Gymnotiformes: Apteronotidae) from the Amazon River Basin, South America |
| title_short |
Magosternarchus, a new genus with two new species of electric fishes (Gymnotiformes: Apteronotidae) from the Amazon River Basin, South America |
| title_full |
Magosternarchus, a new genus with two new species of electric fishes (Gymnotiformes: Apteronotidae) from the Amazon River Basin, South America |
| title_fullStr |
Magosternarchus, a new genus with two new species of electric fishes (Gymnotiformes: Apteronotidae) from the Amazon River Basin, South America |
| title_full_unstemmed |
Magosternarchus, a new genus with two new species of electric fishes (Gymnotiformes: Apteronotidae) from the Amazon River Basin, South America |
| title_sort |
magosternarchus, a new genus with two new species of electric fishes (gymnotiformes: apteronotidae) from the amazon river basin, south america |
| publisher |
Copeia |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/19383 |
| _version_ |
1787145101209763840 |
| score |
11.755432 |