HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsSlimehead grenadier Slimehead grenadier (Ventrifossa mucocephalus) Scientific name: Ventrifossa mucocephalus Marshall, 1973 The Slimehead grenadier (Ventrifossa mucocephalus) is a marine fish of the family Macrouridae. Native range: Western Central Atlantic, western Caribbean, the Straits of Florida off Cuba, and the Atlantic off northeastern Florida. BiologyDorsal spines (total): 2; Anal spines: 0. Scales rather large, with slender conical to somewhat lanceolate and flattened spinules arranged in widely divergent V row or in quincunx order. Snout with black margin along its leading edge only; gums all white; first dorsal fin uniformly blackish.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameVentrifossa mucocephalusFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length40.0Depth range450–732 m (1476–2402 ft)EnvironmentMarine; bathydemersal; non-migratory; depth range 450 - 732 mClimateDeep-waterDistributionWestern Central Atlantic: western Caribbean, the Straits of Florida off Cuba, and the Atlantic off northeastern Florida.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: subsistence fisheriesResilienceMedium, 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