HomeFish encyclopediaRay-finned fishesPerch-like fishPike-, tube- and flagblenniesMedusa blenny Medusa blenny (Acanthemblemaria medusa) Scientific name: Acanthemblemaria medusa Smith-Vaniz & Palacio, 1974 The Medusa blenny (Acanthemblemaria medusa) is a marine fish of the family Chaenopsidae. Native range: Western Central Atlantic, Lesser Antilles, from Anguilla to islands in front of the coasts of northern South America. BiologyDorsal spines (total): 21 - 23; Dorsal soft rays (total): 15-17; Anal spines: 2; Anal soft rays: 25 - 27Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAcanthemblemaria medusaFamilyChaenopsidae (Pike-, tube- and flagblennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length4.0EnvironmentMarine; reef-associatedClimateTropicalDistributionWestern Central Atlantic: Lesser Antilles, from Anguilla to islands in front of the coasts of northern South America.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026