HomeFish encyclopediaRay-finned fishesPerch-like fishClinidsMousey klipfish Mousey klipfish (Fucomimus mus) Scientific name: Fucomimus mus Gilchrist & Thompson, 1908 The Mousey klipfish (Fucomimus mus) is a marine fish of the family Clinidae. Native range: Southeast Atlantic, South Africa. BiologyDorsal spines (total): 25 - 28; Dorsal soft rays (total): 2-4; Anal spines: 2; Anal soft rays: 14 - 18. Reddish, green or brown in color; dorsal and anal fin membranes with 9 and 6 transparent windows respectively. Juveniles reddish with silvery patches on sides.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameFucomimus musFamilyClinidae (Clinids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length10.0EnvironmentMarine; demersalClimateSubtropicalDistributionSoutheast Atlantic: South Africa.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