HomeFish encyclopediaRay-finned fishesPerch-like fishPike-, tube- and flagblenniesSpotjaw blenny Spotjaw blenny (Acanthemblemaria rivasi) Scientific name: Acanthemblemaria rivasi Stephens, 1970 The Spotjaw blenny (Acanthemblemaria rivasi) is a marine fish of the family Chaenopsidae. Native range: Western Atlantic, off Colombia and Costa Rica. Species factsScientific nameAcanthemblemaria rivasiFamilyChaenopsidae (Pike-, tube- and flagblennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)EnvironmentMarine; reef-associatedClimateTropicalDistributionWestern Atlantic: off Colombia and Costa Rica.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