Oligosarcus hepsetus (Cuvier, 1829)
Oligosarcus hepsetus
photo by Vitule, JRS

Family:  Characidae (Characins; tetras), subfamily: Stethaprioninae
Max. size:  32 cm TL (male/unsexed)
Environment:  benthopelagic; freshwater; depth range 4 - 20 m
Distribution:  South America: southeastern Brazil and the La Plata basin.
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 11-11; Anal spines: 3-3; Anal soft rays: 26-26
Biology:  Occurs in ponds (Ref. 11229). Inhabits shallow, densely vegetated microhabitats in small streams or along the banks of larger rivers (Ref. 106564). Feeds mostly on fishes (Ref. 598). Two rodents (Sigmodontinae) were found in the stomachs of two individuals in different rivers located in the southern Brazilian Atlantic Rain Forest, in March and November 2010. These represent the first records of this species feeding on mammals (Ref. 106564).
IUCN Red List Status: Least Concern (LC); Date assessed: 04 March 2021 Ref. (130435)
Threat to humans:  harmless
Country info:   
 


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