HomeFish encyclopediaRay-finned fishesClingfishesClingfishes and singleslitsCalifornia clingfish California clingfish (Gobiesox rhessodon) Scientific name: Gobiesox rhessodon Smith, 1881 The California clingfish (Gobiesox rhessodon) is a marine fish of the family Gobiesocidae. Native range: Eastern Central Pacific, Pismo Beach in central California, USA to central Baja California, Mexico. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 10-12; Anal spines: 0; Anal soft rays: 9 - 10; Vertebrae: 28 - 29. Branchiostegal rays: 6.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGobiesox rhessodonFamilyGobiesocidae (Clingfishes and singleslits)OrderGobiesociformes (Clingfishes)ClassActinopterygii (Ray-finned fishes)Maximum length6.4Depth range11 m (36 ft)EnvironmentMarine; demersal; depth range ? - 11 mClimateSubtropicalDistributionEastern Central Pacific: Pismo Beach in central California, USA to central Baja California, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tmax=5; K=0.4) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026