HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsInflated whiptail Inflated whiptail (Macrouroides inflaticeps) Scientific name: Macrouroides inflaticeps Smith & Radcliffe, 1912 The Inflated whiptail (Macrouroides inflaticeps) is a marine fish of the family Macrouridae. Native range: Western Central Pacific, Philippines. Eastern Pacific: Nazca Ridge. Atlantic Ocean: in tropical waters. Also in the Indian Ocean. BiologyOrbit tiny, about 10% of head length, placed forward of small, inferior mouth. Chin barbel absent. First gill slit not restricted by membranous folds of skin, outer gill rakers long, slender. Branchiostegal rays 7. Anus immediately before anal fin. Tail straplike. Anal fin long, poorly developed. Pelvic fins absent. No light organ. Swimbladder regressed. (Ref 1371)Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMacrouroides inflaticepsFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length48.0Depth range747–4000 m (2451–13123 ft)EnvironmentMarine; bathypelagic; depth range 747 - 4000 mClimateDeep-waterDistributionWestern Central Pacific: Philippines. Eastern Pacific: Nazca Ridge. Atlantic Ocean: in tropical waters. Also in the Indian Ocean.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 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