HomeFish encyclopediaRay-finned fishesPerch-like fishWormfishesSpotback wormfish Spotback wormfish (Microdesmus dorsipunctatus) Scientific name: Microdesmus dorsipunctatus Dawson, 1968 The Spotback wormfish (Microdesmus dorsipunctatus) is a marine fish of the family Microdesmidae. Native range: Eastern Central Pacific, Baja California to Panama. Species factsScientific nameMicrodesmus dorsipunctatusFamilyMicrodesmidae (Wormfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Depth range0–1 m (0–3 ft)EnvironmentMarine; demersal; depth range 0 - 1 mClimateTropicalDistributionEastern Central Pacific: Baja California to Panama.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026