HomeFish encyclopediaRay-finned fishesPerch-like fishWormfishesPink wormfish Pink wormfish (Microdesmus longipinnis) Scientific name: Microdesmus longipinnis Weymouth, 1910 The Pink wormfish (Microdesmus longipinnis) is a marine fish of the family Microdesmidae. BiologyBurrows in shallow muddy and sandy bottoms. Postlarvae and early juveniles (to ca 2-2.5 cm SL) may occur in surface plankton to distances of 15 km or more offshore. Subadults and adults occasionally found swimming near the surface at night.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMicrodesmus longipinnisFamilyMicrodesmidae (Wormfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length27.0Depth range5–10 m (16–33 ft)EnvironmentMarine; demersal; depth range 5 - 10 mClimateSubtropicalDistributionWestern Atlantic: Bermuda, North Carolina (USA), and northern Gulf of Mexico to the Cayman Islands. Eastern Atlantic: only two specimens known (one extant) from Joal, Senegal.Conservation status (IUCN)Not EvaluatedThreat 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