HomeMarine aquarium fishGobies, blennies & dottybacksYellowline goby Yellowline goby (Elacatinus horsti) Scientific name: Elacatinus horsti Metzelaar, 1922 The Yellowline goby (Elacatinus horsti) is a marine fish of the family Gobiidae. Native range: Western Central Atlantic, southern Florida (including Gulf Coast) in USA and Bahamas to Cura?ao and Panama. BiologyDorsal spines (total): 7; Dorsal soft rays (total): 11-12; Anal spines: 1; Anal soft rays: 10. Narrow pale yellow or white line extending from eye to caudal fin base. Black, shading to whitish ventrally.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameElacatinus horstiFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length5.0Depth range7–27 m (23–89 ft)EnvironmentMarine; reef-associated; depth range 7 - 27 mClimateTropicalDistributionWestern Central Atlantic: southern Florida (including Gulf Coast) in USA and Bahamas to Cura?ao and Panama.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: 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 midasYellowprow gobyElacatinus xanthiproraMarked gobyCtenogobius stigmaticusSee 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