HomeMarine aquarium fishOther marine fishRoughhead blenny Roughhead blenny (Acanthemblemaria aspera) Scientific name: Acanthemblemaria aspera Longley, 1927 The Roughhead blenny (Acanthemblemaria aspera) is a marine fish of the family Chaenopsidae. Native range: Western Atlantic, southeastern Florida (USA), Bahamas, and Yucatan, Mexico to the Greater Antilles and Panama. Antilles and western Caribbean. BiologyAlmost always found in holes of corals. Feed on amphipods and copepods. Oviparous. Eggs are attached to the walls of the parent's shelter and are brooded by the male parent.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAcanthemblemaria asperaFamilyChaenopsidae (Pike-, tube- and flagblennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length4.0EnvironmentMarine; reef-associatedClimateSubtropicalDistributionWestern Atlantic: southeastern Florida (USA), Bahamas, and Yucatan, Mexico to the Greater Antilles and Panama. Antilles and western Caribbean.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercial More other marine fishSmooth stargazerKathetostoma averruncusOrangethroat pikeblennyChaenopsis alepidotaYellowface pikeblennyChaenopsis limbaughiSailfin blennyEmblemaria pandionisPirate blennyEmblemaria piratulaNorthern ronquilRonquilus jordaniSee all other marine fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026