Rhodeus pseudosericeus

{{Short description|Species of fish}}

{{Speciesbox

| status = VU

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=IUCN-Republic of Korea Global Red List Partnership Review Workshop |year=2023 |title=Rhodeus pseudosericeus |page=e.T148448839A148448856 |doi=10.2305/IUCN.UK.2023-1.RLTS.T148448839A148448856.en |access-date=20 February 2025}}

| taxon = Rhodeus pseudosericeus

| display_parents = 3

| authority = R. Arai, S. R. Jeon & Ueda, 2001

}}

Rhodeus pseudosericeus, the Hangang bitterling, is a temperate freshwater ray-finned fish belonging to the family Acheilognathidae, the bitterlings. It originated in the Namhan River system in the Gyeonggi-do and Gangwon-do provinces of Korea. It was originally described as Acanthorhodeus atremius by Jordan & Thompson in 1914. The fish reaches a length up to 6.1 cm (2.4 in). When spawning, the females deposit their eggs inside bivalves, where they hatch and the young remain until they can swim.{{FishBase species | genus = Rhodeus | species = pseudosericeus | year = 2007| month = February }}