HomeMarine aquarium fishOther marine fishBlackbar soldierfish Blackbar soldierfish (Myripristis jacobus) Scientific name: Myripristis jacobus Cuvier, 1829 The Blackbar soldierfish (Myripristis jacobus) is a marine fish of the family Holocentridae. BiologyDorsal spines (total): 11; Dorsal soft rays (total): 14; Anal spines: 4; Anal soft rays: 13 - 14. Soft dorsal and anal fins covered with scales. Dark brown vertical bar runs along gill opening to pectoral fin. Body deep, compressed and robust. Body reddish above, paling to silvery below. Spinous dorsal fin with red and white markings. Edges of all fins are white. Preopercular spine not prominent. Lobes of caudal, soft dorsal and anal fins pointed.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMyripristis jacobusFamilyHolocentridae (Squirrelfishes, soldierfishes)OrderBeryciformes (Sawbellies)ClassActinopterygii (Ray-finned fishes)Maximum length25.0Common length20.0Depth range0–100 m (0–328 ft)EnvironmentMarine; reef-associated; depth range 0 - 100 m, usually 2 - 35 mClimateSubtropicalDistributionWestern Atlantic: North Carolina (USA), Bahamas and northern Gulf of Mexico to Brazil; throughout the West Indies and the Caribbean Sea. Eastern Atlantic: St. Paul's Rocks, Cape Verde, Principe, Ascension and St. Helena islands.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More other marine fishLongspine squirrelfishHolocentrus rufusGrub fishParapercis sexfasciataSquirrelfishHolocentrus adscensionisHumpback batfishPlatax batavianusBlackspot waspfishLiocranium praepositumSpotted goatfishPseudupeneus maculatusSee all other marine fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026