Journal Article

Redescription of Orthosternarchus tamandua (Boulenger, 1898) (Gymnotiformes: Apteronotidae), with reviews of its ecology, electric organ discharges, external morphology, osteology, and phylogenetic affinities

Hilton, E.J., Fernandez, C.C., Sullivan, J.P., Lundberg, J.G. and Campos-da-Paz, R.

Record Number:
2972
Year:
2007
Journal:
Proceedings of the Academy of Natural Sciences of Philadelphia
Pages:
1-25
Volume:
156
Abstract:
ABSTRACT.—In this paper, we redescribe the apteronotid fish Orthosternarchus tamandua, the only species of its genus. Historically, O. tamandua was rare in collections and only limited anatomical data was available for this species. However, numerous specimens have become available recently as a result of deep-water trawls in the main channel of the Amazon River, thereby making this redescription possible. In addition to describing the external anatomy and osteology of O. tamandua, we present data on their electronic organ discharges (EODs) recorded at time of capture, and review what is known of its distribution and ecology. We describe and illustrate the osteology of O. tamandua, and in doing so, clarify many aspects of its skeleton. For instance, contrary to previous reports, O. tamandua does possess a lateral ethmoid, although it is exceptionally small. We conclude by discussing the EODs of O. tamandua in comparison to those of other apteronotids and the anatomical characters used in the support of phylogenetic hypotheses of the genus within the family Apteronotidae.
Times Cited:
1
Related Records:
Boulenger, G.A. (1898)
On a collection of fishes from the Rio Jurua, Brazil
Eigenmann, C.H. and Ward, D.P. (1905)
The Gymnotidae
Ellis, M.M. (1913)
The gymnotid eels of tropical America
Campos-da-Paz, R. (1995)
Revision of the South American freshwater fish genus Sternarchorhamphus Eigenmann 1905 (Ostariophysi: Gymnotiformes: Apteronotidae), with notes on its relationships
Albert, J.S. (2001)
Species diversity and phylogenetic systematics of American knifefishes (Gymnotiformes, Teleostei).
Reis, R.E., Kullander, S.O. and Ferraris, C.J. (2003)
Checklist of the freshwater fishes of South and Central America
Hilton, E.J., Fernandez, C.C., Sullivan, J.P., Lundberg, J.G. and Campos-da-Paz, R. (2007)
Redescription of Orthosternarchus tamandua (Boulenger, 1898) (Gymnotiformes: Apteronotidae), with reviews of its ecology, electric organ discharges, external morphology, osteology, and phylogenetic affinities
Crampton, W.G.R. (2008)
Diversity and adaptation in deep-channel Neotropical electric fishes
Crampton, W.G.R. (2011)
An ecological perspective on diversity and distributions
Ivanyisky, S.J. and Albert, J.S. (2014)
Systematics and biogeography of Sternarchellini (Gymnotiformes: Apteronotidae): Diversification of electric fishes in large Amazonian rivers
Smith, A.R., Proffitt, M.R., Ho, W.W., Mullaney, C.B., Maldonado-Ocampo, J.A., Lovejoy, N.R., Alves-Gomes, J.A. and Troy Smith, G. (2016)
Evolution of electric communication signals in the South American ghost knifefishes (Gymnotiformes: Apteronotidae): A phylogenetic comparative study using a sequence-based phylogeny
Tagliacollo, V.A., Bernt, M.J., Craig, J.M., Oliveira, C. and Albert, J.S. (2016)
Model based total evidence phylogeny of Neotropical electric knife fishes (Teleostei, Gymnotiformes)
Ferraris, C.J., de Santana, C.D. and Vari, R.P. (2017)
Checklist of Gymnotiformes (Osteichthyes: Ostariophysi) and catalogue of primary types
Bernt, M.J. and Albert, J.S. (2018)
Family Apteronotidae - Ghost knifefishes
Bernt, M.J., Tagliacollo, V.A. and Albert, J.S. (2019)
Molecular phylogeny of the ghost knifefishes (Gymnotiformes: Apteronotidae)
Dagosta, F.C.P. and de Pinna, M.C.C (2019)
The fishes of the Amazon: Distribution and biogeographical patterns, with a comprehensive list of species
Crampton, W.G.R. (2019)
Electroreception, electrogenesis and electric signal evolution