Teleostei (teleosts) >
Characiformes (Characins) >
Erythrinidae (Trahiras)
Etymology: Hoplias: Greek, hoplon = weapon (Ref. 45335).
Eponymy: Dr João Batista de Lacerda (1845–1915) was a physician, biomedical scientist and anthropologist. [...] (Ref. 128868), visit book page.
Issue
See Britski, 1970(81-82) for diganose and differentiation of Hoplias malabaricus.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Ribeira de Iguape River basin in São Paulo and Paraná, Brazil.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 75.0 cm SL male/unsexed; (Ref. 37025); max. published weight: 4.3 kg (Ref. 79585)
Short description
Identification keys | Morphology | Morphometrics
This species is distinguished from the other species of H. lacerdae group in having 6-8 pores of the laterosensory system along the ventral surface of dentary (vs. 4-6 in H. brasiliensis and H. intermedius, always 5 in H. australis and 4 in H. curupira); 43-48 scales along lateral line (vs. 38-43 H. brasiliensis and 34-39 in H. curupira) (Ref. 81195).
Body shape (shape guide): elongated; Cross section: circular.
Piscivorous (Ref. 79585).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oyakawa, O.T. and G.M.T. Mattox, 2009. Revision of the Neotropical trahiras of the Hoplias lacerdae species-group (Ostariophysi: Characiformes: Erythrinidae) with descriptions of two new species. Neotrop. Ichthyol. 7(2):117-140. (Ref. 81195)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquaculture: commercial
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