Oligosarcus

Oligosarcus is a genus of freshwater ray-finned fishes belonging to the family Acestrorhamphidae, the American characins. The fishes in this genus are found in South America. They reach up to in length and are predators that mainly feed on smaller fish.

In the Vinony graph

Within Vinony's link graph, Oligosarcus is referenced by 4 other articles, and connects out to Animalia, Chordata and Wikidata.

It is catalogued under topics including Acestrorhamphinae, Fish of South America and Taxa named by Albert Günther.

Its subject is documented across 14 Wikipedia language editions.

Species

GENUS

KingdomAnimalia
PhylumChordata
ClassTeleostei
OrderCharaciformes
FamilyCharacidae

Habitatfreshwater

Observations recorded5,884

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

via GBIF