HomeFish encyclopediaRay-finned fishesCusk eelsViviparous brotulasGulf cuskeel Gulf cuskeel (Ogilbia ventralis) Scientific name: Ogilbia ventralis Gill, 1863 The Gulf cuskeel (Ogilbia ventralis) is a marine fish of the family Bythitidae. Native range: Eastern Central Pacific, around the southern tip of the Gulf of California. BiologyDorsal soft rays (total): 78-91; Anal soft rays: 56 - 65; Vertebrae: 42 - 45. The species is characterized by the following: Vertebrae 11-13 + 30-33 = 42-45, dorsal fin rays 78-91, anal fin rays 56-65, the outer pseudoclasper broad, distally expanded; inner pseudoclasper branched into three slender branches, two outer v-shaped, medial one short and stout, penis with abrupt change from thick base to thin tip; opercular spine with single, sharp tip; scales on cheek small, in vertical 7-9 rows.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOgilbia ventralisFamilyBythitidae (Viviparous brotulas)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length7.8Depth range0–10 m (0–33 ft)EnvironmentMarine; reef-associated; depth range 0 - 10 mClimateTropicalDistributionEastern Central Pacific: around the southern tip of the Gulf of California.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interestResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming Fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026