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Acestrorhynchus falcirostris (Cuvier, 1819) |
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photo by
IBAMA |
| Family: | Acestrorhynchidae (Smallscale pike characins), subfamily: Acestrorhynchinae | |||
| Max. size: | 45 cm SL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater; pH range: 5.19999980926514 - 7.19999980926514; dH range: 5 - 18 | |||
| Distribution: | South America: Amazon and Orinoco River basins and rivers of Guyana. | |||
| Diagnosis: | Presence of black fringe on the posterior edge of the operculum, especially on the dorsal half, that creates the appearance of a dark "collar"; scales on lateral line 140-175; and presence of single branched lateral line canals (Ref. 52916). | |||
| Biology: | Found in clear and black waters (Ref. 52916). Voracious predator. | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 13 February 2020 Ref. (130435) | |||
| Threat to humans: | harmless | |||