HomeFish encyclopediaRay-finned fishesFlatfishesLarge-tooth floundersGulf sanddab Gulf sanddab (Citharichthys fragilis) Scientific name: Citharichthys fragilis Gilbert, 1890 The Gulf sanddab (Citharichthys fragilis) is a marine fish of the family Paralichthyidae. Native range: Eastern Pacific, Manhattan Beach in southern California, USA to Gulf of California. BiologyDorsal soft rays (total): 76-93; Anal soft rays: 63 - 72; Vertebrae: 36 - 38. Pectoral fin on ocular side with 10-12 rays, blind side with 9-10 rays.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCitharichthys fragilisFamilyParalichthyidae (Large-tooth flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length22.0Depth range18–347 m (59–1138 ft)EnvironmentMarine; demersal; depth range 18 - 347 mClimateSubtropicalDistributionEastern Pacific: Manhattan Beach in southern California, USA to Gulf of California.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, minimum population doubling time less than 15 months (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