Taxonomic revision of the deep channel electric fish genus Sternarchella (Teleostei: Gymnotiformes: Apteronotidae), with descriptions of two new species

@article{Evans2017TaxonomicRO,
  title={Taxonomic revision of the deep channel electric fish genus Sternarchella (Teleostei: Gymnotiformes: Apteronotidae), with descriptions of two new species},
  author={Kory M Evans and William G. R. Crampton and James S. Albert},
  journal={Neotropical Ichthyology},
  year={2017},
  volume={15}
}
This paper provides a taxonomic revision of the Neotropical electric fish genus Sternarchella, with redescriptions of seven valid species and descriptions of two new species. A maximum parsimony analysis of 76 morphological characters from seven ingroup and seven outgroup taxa recovered a non-monophyletic Sternarchella, in which a clade comprising two species with a ventral mouth (S. orinoco + S. sima) is the sister group to a clade comprising seven species that possess a terminal or superior… Expand
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References

SHOWING 1-10 OF 42 REFERENCES
Magosternarchus, a New Genus with Two New Species of Electric Fishes (Gymnotiformes: Apteronotidae) from the Amazon River Basin, South America
TLDR
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 and shared features of the ethmoid and jaw bones, mesopterygoid, opercle, gillrakers, basibranchials, and infraorbital laterosensory canal suggest that Magosternarchus is most closely related to Sternarchella. Expand
Sternarchella calhamazon n. sp., the Amazon's Most Abundant Species of Apteronotid Electric Fish, with a Note on the Taxonomic Status of Sternarchus capanemae Steindachner, 1868 (Gymnotiformes, Apteronotidae)
TLDR
A new species of apteronotid electric fish is described from the Brazilian and Peruvian Amazon that conspicuously differs from its congeners in caudal peduncle shape, electric organ size and shape, hemal spine elongation above the anal fin, and arrangement of intermuscular bones adjacent to the electric organ. Expand
Pariosternarchus amazonensis: a new genus and species of Neotropical electric fish (Gymnotiformes: Apteronotidae) from the Amazon River
Pariosternarchus amazonensis, new genus and species, is described from the Amazon river of Brazil and Peru. It is unique among apteronotids in possessing a wide head that is flattened on its entireExpand
Model-based total evidence phylogeny of Neotropical electric knifefishes (Teleostei, Gymnotiformes).
This study provides the most comprehensive Model-Based Total Evidence (MBTE) phylogenetic analyses of the clade Gymnotiformes to date, reappraising relationships using a dataset comprised of sixExpand
A new species of electric knifefish, genus Compsaraia (Gymnotiformes: Apteronotidae) from the Amazon River, with extreme sexual dimorphism in snout and jaw length
TLDR
The genus Compsaraia represents one of at least three phylogenetically independent cases of snout elongation and at least four cases of jaw elongation within the Apteronotidae, and suggests the influence of both sexual and trophic functional influences on the evolution of head morphology. Expand
Genetic structure and historical diversification of catfish Brachyplatystoma platynemum (Siluriformes: Pimelodidae) in the Amazon basin with implications for its conservation
TLDR
The results show high levels of haplotype diversity and point to the occurrence of two structured populations of B. platynemum in the Amazon basin with high values for FST, as well as of differences in water chemistry in Madeira River. Expand
Evolutionary convergence in Neotropical cichlids and Nearctic centrarchids: evidence from morphology, diet, and stable isotope analysis
TLDR
Consistent patterns of ecomorphological convergence in these two perciform groups provide strong evidence for adaptation involving constrains in functional morphology associated with feeding. Expand
Are rapids a barrier for floodplain fishes of the Amazon basin? A demographic study of the keystone floodplain species Colossomamacropomum (Teleostei: Characiformes).
TLDR
Investigation of demographic history and population structuring of Colossoma macropomum sampled from 14 localities in the Amazon basin and the Bolivian sub-basin found it has been demographically stable except for a moderate population increase in the last 12 thousand years, and has been experiencing demographic growth over the last 350 thousand years. Expand
Systematics and biogeography of Sternarchellini (Gymnotiformes: Apteronotidae): Diversification of electric fishes in large Amazonian rivers
TLDR
Os resultados indicam that cladogenese (especiacao) e anagenese (evolucao adaptativa) foram processos desacoplados na evlucao de Sternarchellini. Expand
Evolutionary convergence of body shape and trophic morphology in cichlids from Lake Tanganyika
TLDR
It is hypothesized that trophic ecology may be a key factor promoting morphological differentiation, and postulate that similar body shape and feeding structures have evolved multiple times in independent lineages, enabling taxa to invade similar adaptive zones. Expand
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