HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesShortjaw mudsucker Shortjaw mudsucker (Gillichthys seta) Scientific name: Gillichthys seta Ginsburg, 1938 The Shortjaw mudsucker (Gillichthys seta) is a marine fish of the family Gobiidae. Native range: Eastern Central Pacific, known from the type locality, Puerto Refugio, Isla Angel de la Guarda, Gulf of California. BiologyNon-emerging air-breather. Better reference needed.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGillichthys setaFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)EnvironmentMarine; demersalClimateSubtropicalDistributionEastern Central Pacific: known from the type locality, Puerto Refugio, Isla Angel de la Guarda, Gulf of California.Conservation status (IUCN)Vulnerable (VU) (B2ab(iii))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