Semaprochilodus

{{short description|Genus of fishes}}

{{Automatic taxobox

| fossil_range =

| image = Aquarium_tropical_de_Pierrefitte-Nestalas_03082018_Semaprochilodus_1.jpg

| image_caption = Semaprochilodus taeniurus

| taxon = Semaprochilodus

| authority = Fowler, 1941

| subdivision_ranks = Species

| subdivision =

6, see text

}}

Semaprochilodus is a genus of South American freshwater fish in the family Prochilodontidae. They have sometimes been included in the genus Prochilodus instead. Of the six species, three are from the Amazon Basin, two from the Orinoco Basin and a single from the Maroni Basin. Depending on the exact species, they reach a maximum length of {{convert|27|-|54|cm|in}}.{{FishBase genus| genus = Semaprochilodus | year = 2017 | month = March}}

They support important fisheries and based on a review by IBAMA, they are the second (after Brachyplatystoma vaillantii) most caught fish by weight in the Brazilian Amazon.Araujo-Lima, C.A.R.M.; and M.L. Ruffino (2004). Migratory Fishes of the Brazilian Amazon. Pp. 233—302 in: Carolsfeld, J.; B. Harvey; C. Ross; and A. Baer (editors). Migratory Fishes of South America. {{ISBN|9781552501146}}.