HomeFish encyclopediaRay-finned fishesCusk eelsCusk-eelsSilver cusk eel Silver cusk eel (Lepophidium microlepis) Scientific name: Lepophidium microlepis Gilbert, 1890 The Silver cusk eel (Lepophidium microlepis) is a marine fish of the family Ophidiidae. Native range: Eastern Pacific, Baja California and Gulf of California to Peru. BiologyRostral spine long and curved, reaching tip of snout, without vertical basal component; peritoneum pale; no median basibranchial tooth patch; head extensively covered with imbricate rows of cycloid scales except for snout and throat; body tapering to point, dagger-shaped. Body rather uniformly pigmented, slightly paler below or with only a series of dark dashes along lateral line or markings confined to vertical fins; esophagus black, gill chamber and oral cavity pale; dorsal fin unspotted.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLepophidium microlepisFamilyOphidiidae (Cusk-eels)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length30.0Common length20.0Depth range70–320 m (230–1050 ft)EnvironmentMarine; demersal; depth range 70 - 320 mClimateTropicalDistributionEastern Pacific: Baja California and Gulf of California to Peru.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries:ResilienceHigh, minimum population doubling time less than 15 months (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