Astyanax cocibolca

Astyanax cocibolca s a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. This fish is found in the Lake Nicaragua basin. It was once thought to be endemic to the lake, but its range has since been extended into nearby waterways; still, it is not particularly widespread. It is an omnivorous species that demonstrates a preference for fruit when living close to shore, but specimens living in the open waters of the lake have developed filter-feeding planktivory, which is unusual for members of the genus Astyanax.