HomeFish encyclopediaRay-finned fishesGrinnersDeepsea LizardfishesHighfin lizardfish Highfin lizardfish (Bathysaurus mollis) Scientific name: Bathysaurus mollis G?nther, 1878 The Highfin lizardfish (Bathysaurus mollis) is a marine fish of the family Bathysauridae. Native range: Circumglobal between latitude 50?N-20?S except tropical eastern Pacific. Eastern Atlantic, northern Ireland; Morocco to Gabon. BiologyDorsal soft rays: 16-17; Anal soft rays: 13; Vertebrae: 50 - 51. Moderately elongate and slender. Slightly depressed anteriorly and compressed posteriorly. Color generally white, with peritoneum, branchial and buccal regions dark. Small specimens have faint vertical bars.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBathysaurus mollisFamilyBathysauridae (Deepsea Lizardfishes)OrderAulopiformes (Grinners)ClassActinopterygii (Ray-finned fishes)Maximum length78.0Common length40.0Depth range1550–4903 m (5085–16086 ft)EnvironmentMarine; bathydemersal; depth range 1550 - 4903 m, usually ? - 2000 mClimateDeep-waterDistributionCircumglobal between latitude 50?N-20?S except tropical eastern Pacific. Eastern Atlantic: northern Ireland; Morocco to Gabon.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming tmax>10) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026