Sternarchogiton Preto (Sternarchogiton preto) is a ray-finned fish of the family Apteronotidae. It inhabits freshwater waters in pelagic environments. This species can reach a maximum total length of 25 cm. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms.
Distinguished from all congeners by having the following characters: very dark brown or purplish black live body coloration; black pectoral-, anal- and caudal-fin membranes; premaxilla with 5 long conical teeth; one row of conical teeth pointing toward the inside of the mouth of dentary; fusion of the supracleithrum and posttemporal; anterior portion of coracoid falling short of the anterior edge of the cleithrum; absence of a prominent tri-lobed structure on the lower lip .
Behavioural data for Sternarchogiton Preto is currently being reviewed.
Freshwater; pelagic. Tropical South America: Brazilian and northeastern Peruvian Amazon and Venezuelan Orinoco basins.
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