HomeFish encyclopediaRay-finned fishesPerch-like fishRonquilsAlaskan ronquil Alaskan ronquil (Bathymaster caeruleofasciatus) Scientific name: Bathymaster caeruleofasciatus Gilbert & Burke, 1912 The Alaskan ronquil (Bathymaster caeruleofasciatus) is a marine fish of the family Bathymasteridae. Native range: North Pacific, Commander and Aleutian islands to British Columbia, Canada. BiologyInhabits rocky areas. Retreats into a hole or crevice.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBathymaster caeruleofasciatusFamilyBathymasteridae (Ronquils)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length30.0Depth range0–95 m (0–312 ft)EnvironmentMarine; demersal; depth range 0 - 95 mClimateBorealDistributionNorth Pacific: Commander and Aleutian islands to British Columbia, Canada.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