Semaprochilodus insignis
Semaprochilodus insignis, the kissing prochilodus or flag-tailed prochilodus, is a species of freshwater ray-finned fish belonging to the family Prochilodontidae, the bocachicos or flannel-mouth characiformes. It is native to central and western parts of the Amazon basin. It is migratory, moving in large groups into whitewater rivers to spawn, afterwards returning to blackwater and clearwater rivers, as well as flooded forests. It is important in fisheries and sometimes seen in the aquarium trade, but requires a relatively large tank. It can reach a maximum standard length of and weight of. It resembles the other members of the genus Semaprochilodus, where most species are silvery with orange-red fins and a striped tail. Adult S. insignis lack the dark flank spots that can be seen in adult S. taeniurus, but both species have these spots as juveniles.