Khanka spiny bitterling

{{Short description|Species of fish}}

{{speciesbox

| image = Acanthorhodeus chankaensis.jpg

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Bogutskaya, N. |year=2022 |title=Acheilognathus chankaensis |page=e.T166115A1112475 |doi=10.2305/IUCN.UK.2022-1.RLTS.T166115A1112475.en |access-date=19 February 2025}}

| taxon = Acheilognathus chankaensis

| authority = (Dybowski, 1872)

| synonyms = {{Specieslist

| Parachilognathus imberbis | Bleeker, 1871

| Devario chankanensis | Dybowski, 1872

| Acanthorhodeus chankaensis | (Dybowski, 1872)

| Acanthorhodeus atranalis | Günther, 1873

| Paracheilognathus bleekeri | Berg, 1907

| Acanthorhodeus gracilis | Regan, 1908

| Acanthorhodeus wangi | T. L. Tchang, 1930

| Acanthorhodeus asmussi sungariensis | Berg, 1931

| Acanthorhodeus tokunagai | Mori, 1934

}}

| synonyms_ref = {{Cof genus|genus=Acheilognathus|access-date=19 February 2025}}

}}

The Khanka spiny bitterling (Acheilognathus chankaensis) is a temperate freshwater fish belonging to the family Acheilognathidae, the bitterlings. It originates in the inland rivers in Asia, and is found in China, Korea, and Russia. It is currently the only known species in its genus.

The fish can grow up to {{convert|12|cm|in|abbr=on}} in total length. It lives in a temperate climate in water with a pH of 7.0, a hardness of 15 DH, and a temperature range of {{convert|18|to|22|C|F}}. It is of commercial importance for fisheries and public aquaria.{{FishBase |genus = Acanthorhodeus|species = chankaensis| month = February | year = 2013}}

When spawning, the female deposits the eggs inside bivalves. The young hatch and remain within the bivalve until they can swim.