HomeFish encyclopediaRay-finned fishesClingfishesClingfishes and singleslitsCornish sucker Cornish sucker (Lepadogaster purpurea) Scientific name: Lepadogaster purpurea Bonnaterre, 1788 The Cornish sucker (Lepadogaster purpurea) is a marine fish of the family Gobiesocidae. Native range: Eastern Atlantic, Dakar to the Canary Islands, Shetland Islands in the north, and in the Mediterranean west of Cap Roux. Possibly also in the Black Sea. BiologyOccurs on rocky, seaweed covered shores, particularly among small boulders. Most common in the intertidal zone amongst the algae Himanthalia and Laminaria.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLepadogaster purpureaFamilyGobiesocidae (Clingfishes and singleslits)OrderGobiesociformes (Clingfishes)ClassActinopterygii (Ray-finned fishes)Maximum length7.5EnvironmentMarine; demersalClimateSubtropicalDistributionEastern Atlantic: Dakar to the Canary Islands, Shetland Islands in the north, and in the Mediterranean west of Cap Roux. Possibly also in the Black Sea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026