Astyanax Leoni (Astyanax leoni) is a ray-finned fish of the family Acestrorhamphidae. It inhabits freshwater waters. This species can reach a maximum total length of 11.6 cm. With a trophic level of 2.9, it is a low-level carnivore, feeding on invertebrates and small organisms.
Dorsal soft rays (total): 9; Anal soft rays: 25 - 27; Vertebrae: 36 - 38. This species is distinguished from its congeners by the following set of characters: inconspicuous rod-shaped stripe on the caudal peduncle that extends anteriorly on top of a silver lateral stripe; short chevrons that cover up to two scale series above and below the vertex of the chevron; chevrons distributed along the entire length of the body; caudal peduncle spot extending anteriorly to beyond the tip of the dorsal fin .: fusiform / normal; Cross section: compressed.
Behavioural data for Astyanax Leoni is currently being reviewed.
Freshwater; benthopelagic. Temperate South America: Peru.
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