Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Characiformes (Characins) >
Erythrinidae (Trahiras)
Etymology: Hoplias: Greek, hoplon = weapon (Ref. 45335); australis: The specific name 'australis', an adjective, is used in reference to the southern range of this species, one of the southern most in the genus.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Endemic to the rio Uruguai; Brazil, Argentina, Uruguay.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 44.4 cm SL male/unsexed; (Ref. 81195)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 12 - 14; Anal soft rays: 9 - 11. Laterosensory canal along the ventral surface of dentary always with 5 pores; anterior profile of the head rounded in lateral view; and scales on the lateral line 40-45 (Ref. 81195).
Body shape (shape guide): elongated.
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
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