HomeFish encyclopediaRay-finned fishesPerch-like fishLabrisomidsGoldline blenny Goldline blenny (Malacoctenus aurolineatus) Scientific name: Malacoctenus aurolineatus Smith, 1957 The Goldline blenny (Malacoctenus aurolineatus) is a marine fish of the family Labrisomidae. Native range: Western Atlantic, southern Florida (USA), Bahamas, and Yucatan, Mexico to northern South America. BiologyDorsal spines (total): 20 - 21; Dorsal soft rays (total): 11; Anal spines: 2; Anal soft rays: 19 - 20. Body with dark bars; first two bars connected to form an H, last two bars remote from first.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMalacoctenus aurolineatusFamilyLabrisomidae (Labrisomids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length6.0Depth range0–5 m (0–16 ft)EnvironmentMarine; reef-associated; depth range 0 - 5 mClimateSubtropicalDistributionWestern Atlantic: southern Florida (USA), Bahamas, and Yucatan, Mexico to 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