HomeFish encyclopediaRay-finned fishesClingfishesClingfishes and singleslitsSouthern fraildisc clingfish Southern fraildisc clingfish (Pherallodiscus varius) Scientific name: Pherallodiscus varius Briggs, 1955 The Southern fraildisc clingfish (Pherallodiscus varius) is a marine fish of the family Gobiesocidae. Native range: Eastern Central Pacific, Mexico. Species factsScientific namePherallodiscus variusFamilyGobiesocidae (Clingfishes and singleslits)OrderGobiesociformes (Clingfishes)ClassActinopterygii (Ray-finned fishes)EnvironmentMarine; demersalClimateTropicalDistributionEastern Central Pacific: Mexico.Conservation status (IUCN)Data deficient (DD)Threat 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