HomeFish encyclopediaRay-finned fishesGrinnersDeep-sea tripod fishesTripodfish Tripodfish (Bathypterois grallator) Scientific name: Bathypterois grallator Goode & Bean, 1886 The Tripodfish (Bathypterois grallator) is a marine fish of the family Ipnopidae. BiologyElongate pelvic and caudal fin rays held body above the sediment. These rays appeared flexible when the fishes swam and stiff when they were perched on the bottom.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBathypterois grallatorFamilyIpnopidae (Deep-sea tripod fishes)OrderAulopiformes (Grinners)ClassActinopterygii (Ray-finned fishes)Maximum length36.8Common length30.0Depth range878–4720 m (2881–15486 ft)EnvironmentMarine; bathydemersal; depth range 878 - 4720 mClimateDeep-waterDistributionEastern Atlantic: scattered records in the Mediterranean, off Cape Blanc in Mauritania, Azores, Gulf of Guinea and off equatorial Africa. Western Atlantic: USA to Gulf of Mexico including Caribbean and along Rio Grande Rise. Western Indian Ocean: Mozambique Channel. Elsewhere, equatorial western Pacific and eastern Pacific.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceVery Low, minimum population doubling time more than 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