dcsimg
Diagnostic Description
provided by Plazi (legacy text)

The genus Oligosarcus consists of 16 previously described species (Menezes, 1969a; Menezes, 1987; Miquelarena & Protogino, 1996), distributed throughout most of the main hydrographic systems of cisAndean South America below 14º of latitude (Menezes, 1988). This wide distributional range includes the Bolivian and Argentinean Andean highlands, the Brazilian crystalline shield, and the Atlantic slope drainages of eastern and southern South America (Menezes, 1988). Species of Oligosarcus are typically small-to medium sized predators on arthropods and other fishes, inhabiting mainly smaller tributaries of the main river basins (Menezes, 1969b; Aranha et. al, 1998; Casatti, 2003; Hermes-Silva et al., 2004).

Menezes (1987) provided a comprehensive review of the previous known species and described three new ones. The latest addition to the genus was made by Miquelarena & Protogino (1996) in describing Oligosarcus menezesi . No intraspecific phylogenetic information on this genus has been already provided; however, the presence of tricuspid teeth along most of ectopterygoid length, a unique feature among a set of genera presently assigned as incertae sedis in Characidae (Lima et al, 2003), suggests that the genus consists of a monophyletic group. The phylogenetic relationships and biogeography of Oligosarcus are currently under study by one of the authors (ACR).

license
not applicable
bibliographic citation
Alexandre C. Ribeiro, 2007, Oligosarcus perdido (Characiformes, Characidae), a new species of freshwater fish from Serra da Bodoquena, upper Rio Paraguai basin, Brazil., Zootaxa, pp. 43-53, vol. 1560
author
Alexandre C. Ribeiro
original
visit source
partner site
Plazi (legacy text)
ID
http://plazi.cs.umb.edu/exist/rest/db/taxonx_docs/getSPM.xq?render=xhtml&description=broad&associations=no&doc=2007_Ribeiro_Cavallaro_Froehlich_gg2_tx.xml#_Description_1_1
Oligosarcus
provided by wikipedia EN

Oligosarcus is a genus of characins from freshwater habitats in northern Argentina, Paraguay, Uruguay, eastern Bolivia, and southern and central Brazil, They reach up to 31 cm (12 in) in length and are predators that mainly feed on smaller fish.

Species

There are currently 22 recognized species in this genus:

References

  1. ^ Almirón, A., Casciotta, J., Piálek, L., Doubnerová, K. & Říčan, O. (2015): Oligosarcus amome (Ostariophysi: Characidae), a new species from the río Uruguay basin, Misiones, Argentina. Zootaxa, 3915 (4): 581–590.
  2. ^ a b Menezes, N.A. & Ribeiro, A.C. (2015): A new species of the lowland Oligosarcus Günther species group (Teleostei: Ostariophysi: Characidae). Neotropical Ichthyology, 13 (3): 541-546.


Stub iconThis Characiformes-related article is a stub. You can help Wikipedia by expanding it.
 title=
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN
ID
01d9e59916f9e0519a2388fc3964cc24
Oligosarcus: Brief Summary
provided by wikipedia EN

Oligosarcus is a genus of characins from freshwater habitats in northern Argentina, Paraguay, Uruguay, eastern Bolivia, and southern and central Brazil, They reach up to 31 cm (12 in) in length and are predators that mainly feed on smaller fish.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN
ID
66caf150fbb884144f9006ba9ca9a09b