HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsBulbous rattail Bulbous rattail (Kuronezumia bubonis) Scientific name: Kuronezumia bubonis Iwamoto, 1974 The Bulbous rattail (Kuronezumia bubonis) is a marine fish of the family Macrouridae. Native range: Western Atlantic, Western Indian Ocean, and the Pacific Ocean. BiologyNo enlarged scutes at snout tip; suborbital ridge not developed; underside of snout narrowly naked along upper lip; 1-2 scales on branchiostegal membrane; ventral light organ very large.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameKuronezumia bubonisFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length60.0Depth range585–1300 m (1919–4265 ft)EnvironmentMarine; benthopelagic; depth range 585 - 1300 mClimateDeep-waterDistributionWestern Atlantic, Western Indian Ocean, and the Pacific Ocean.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026