This genus and Acheilognathus have a convoluted taxonomic history, one being at times included in the other. They are now considered separate, but some species formerly in Rhodeus are now in Acheilognathus.
These are the currently recognized species in this genus:3
"Deceptive Bitterling". Time. October 12, 1936. Archived from the original on December 15, 2008. Retrieved 2008-04-16. Not quite two years ago physicians and prospective parents welcomed the news that a small, carp-like fish could tell whether or not a woman was going to have a baby ... The bitterling lost her standing and the doe rabbit and mouse were reinstated as nature's best indicators of human pregnancy. But obstetricians Kanter and Klawans pursued the matter with another research mate, physiologist Broda Otto Barnes, and secured further results which they detailed in Science last week. https://web.archive.org/web/20081215102553/http://www.time.com/time/magazine/article/0,9171,848651,00.html ↩
Barnes, B. O.; Kanter, A. E.; Klawans, A. H. (1936). "Bitterling Ovipositor Lengthening Produced By Adrenal Extracts". Science. 84 (2179): 310. doi:10.1126/science.84.2179.310-a. PMID 17837041. /wiki/Science_(journal) ↩
Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Rhodeus". Catalog of Fishes. California Academy of Sciences. Retrieved 19 February 2025. /wiki/William_N._Eschmeyer ↩