HomeFish encyclopediaRay-finned fishesAnglerfishesSea toadsNaked-belly Coffinfish Naked-belly Coffinfish (Chaunax nudiventer) Scientific name: Chaunax nudiventer Ho & Shao, 2010 The Naked-belly Coffinfish (Chaunax nudiventer) is a marine fish of the family Chaunacidae. Native range: Western South Pacific, South Fiji Ridge. BiologyA species of the C. abei species group that differs from its congeners in having large spots on the dorsal surface; a largely naked area on abdomen; a relatively short head (27.0?29.8% SL) and a relatively long tail (tail length 1=34.0-35.6% SL), reflected in the relatively elongated body; dermal spines on body surface all simple, relatively slender and elongated; and relatively high lateral line neuromast counts, 39?50 (mainly 41?43) in lateral line proper, 3?5 (mainly 4) in upper peropercular series, and 15?19 (mainly 16?17) in pectoral series, which is well extended beyond pectoral fin base.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChaunax nudiventerFamilyChaunacidae (Sea toads)OrderLophiiformes (Anglerfishes)ClassActinopterygii (Ray-finned fishes)Maximum length16.6Depth range282–1089 m (925–3573 ft)EnvironmentMarine; demersal; depth range 282 - 1089 mClimateSubtropicalDistributionWestern South Pacific: South Fiji Ridge.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026