HomeMarine aquarium fishGobies, blennies & dottybacksThree-lined blenny Three-lined blenny (Ecsenius trilineatus) Scientific name: Ecsenius trilineatus Springer, 1972 The Three-lined blenny (Ecsenius trilineatus) is a marine fish of the family Blenniidae. Native range: Western Central Pacific, known only from the small islands in the Moluccas, New Guinea and eastward to Florida Island, Solomon Islands. BiologyDistinctive species, easily identified by the thin dark lines and bright white spots. The Bali specimens are generally paler and have smaller white spots than those from Flores and Sangihe Islands but this maybe habitat related.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEcsenius trilineatusFamilyBlenniidae (Combtooth blennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length3.0EnvironmentMarine; reef-associated; non-migratoryClimateTropicalDistributionWestern Central Pacific: known only from the small islands in the Moluccas, New Guinea and eastward to Florida Island, Solomon Islands.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More gobies, blennies & dottybacksYellowhead jawfishOpistognathus aurifronsFire gobyNemateleotris magnificaYellow prawn-gobyCryptocentrus cinctusPersian blennyEcsenius midasBlackline fangblennyMeiacanthus nigrolineatusTalbot's blennyStanulus talbotiSee all gobies, blennies & dottybacks SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026