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
Relevent Species:
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
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