HomeFish encyclopediaRay-finned fishesPerch-like fishLabrisomidsLargemouth blenny Largemouth blenny (Labrisomus xanti) Scientific name: Labrisomus xanti Gill, 1860 The Largemouth blenny (Labrisomus xanti) is a marine fish of the family Labrisomidae. Native range: Eastern Central Pacific, Bah?a Sebasti?n Vizcaino to Bah?a Tenacatita, Jalisco in Mexico. BiologyShallow water diurnal predator that feeds mostly on benthic crustaceans.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLabrisomus xantiFamilyLabrisomidae (Labrisomids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length17.8EnvironmentMarine; reef-associatedClimateTropicalDistributionEastern Central Pacific: Bah?a Sebasti?n Vizcaino to Bah?a Tenacatita, Jalisco in Mexico.Conservation status (IUCN)Least Concern (LC)Threat 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