HomeMarine aquarium fishGobies, blennies & dottybacksGargantuan blenny Gargantuan blenny (Cirripectes obscurus) Scientific name: Cirripectes obscurus Borodin, 1927 The Gargantuan blenny (Cirripectes obscurus) is a marine fish of the family Blenniidae. Native range: Eastern Central Pacific, native to the Hawaiian Islands and Midway Islands. BiologyOccur in the surge zone of rocky and coral reefs. Benthic. Oviparous. Eggs are demersal and adhesive.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCirripectes obscurusFamilyBlenniidae (Combtooth blennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Depth range0–6 m (0–20 ft)EnvironmentMarine; reef-associated; depth range 0 - 6 mClimateTropicalDistributionEastern Central Pacific: native to the Hawaiian Islands and Midway Islands.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; 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 midasFilamentous blennyCirripectes filamentosusRed-streaked blennyCirripectes stigmaticusSee 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