HomeMarine aquarium fishGobies, blennies & dottybacksRusty blenny Rusty blenny (Parablennius sanguinolentus) Scientific name: Parablennius sanguinolentus Pallas, 1814 The Rusty blenny (Parablennius sanguinolentus) is a marine fish of the family Blenniidae. Native range: Eastern Atlantic, Loire, France to Morocco including the Mediterranean and Black Sea. BiologyDorsal spines (total): 11; Dorsal soft rays (total): 21; Anal spines: 0; Anal soft rays: 21Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameParablennius sanguinolentusFamilyBlenniidae (Combtooth blennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Common length12.5Depth range1 m (3 ft)EnvironmentMarine; demersal; non-migratory; depth range ? - 1 mClimateSubtropicalDistributionEastern Atlantic: Loire, France to Morocco including the Mediterranean and Black Sea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More gobies, blennies & dottybacksYellowhead jawfishOpistognathus aurifronsFire gobyNemateleotris magnificaYellow prawn-gobyCryptocentrus cinctusPersian blennyEcsenius midasSawspine dragonetDiplogrammus infulatusManed blennyScartella emarginataSee all gobies, blennies & dottybacks SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026