HomeMarine aquarium fishWrassesRock cook Rock cook (Centrolabrus exoletus) Scientific name: Centrolabrus exoletus Linnaeus, 1758 The Rock cook (Centrolabrus exoletus) is a marine fish of the family Labridae. Native range: Eastern Atlantic, Norway to Portugal; also eastern Greenland. BiologyDorsal spines (total): 18 - 20; Dorsal soft rays (total): 5-7; Anal spines: 4 - 6; Anal soft rays: 6 - 8. Snout with 5-10 pores. Upper lip with 5-7 folds. Rows of scales on cheek 3-5, on inter-operculum 2 (7-11) scales, on temporo-occipital surface 5-8. Vertebrae 32-34. Preoperculum edge serrated. One row of scales on base of soft part of dorsal and anal fins. No black spots on the body or fins.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCentrolabrus exoletusFamilyLabridae (Wrasses)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length18.0Common length12.0EnvironmentMarine; reef-associatedClimateTemperateDistributionEastern Atlantic: Norway to Portugal; also eastern Greenland.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: public aquariumsResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.69-0.81; tmax=6) More wrassesDiana's hogfishBodianus dianaTwospot hogfishBodianus bimaculatusSplitlevel hogfishBodianus mesothoraxAxilspot hogfishBodianus axillarisOrange-dotted tuskfishChoerodon anchoragoLyretail hogfishBodianus anthioidesSee all wrasses SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026