HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsDeepbody bitterling Deepbody bitterling (Acheilognathus longipinnis) Scientific name: Acheilognathus longipinnis Regan, 1905 The Deepbody bitterling (Acheilognathus longipinnis) is a freshwater fish of the family Cyprinidae. Native range: Asia, Central and southern Japan. Species factsScientific nameAcheilognathus longipinnisFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length8.0EnvironmentFreshwater; benthopelagicClimateTemperateDistributionAsia: Central and southern Japan.Conservation status (IUCN)Vulnerable (VU) (A1ace, B1+2c)Threat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026