HomeFish encyclopediaRay-finned fishesPerch-like fishDottybacksChagos dottyback Chagos dottyback (Chlidichthys chagosensis) Scientific name: Chlidichthys chagosensis Gill & Edwards, 2004 The Chagos dottyback (Chlidichthys chagosensis) is a marine fish of the family Pseudochromidae. Native range: Western Indian Ocean, known only from the Chagos Archipelago. BiologyDorsal spines (total): 2; Dorsal soft rays (total): 22; Anal spines: 3; Anal soft rays: 13. A species of Chlidichthys with the following combination of characters: predorsal scales extending to supratemporal commissure; suborbital pores 6-8, usually 7; and sensory canal of infraorbital 1 usually not continuous with adjacent infraorbital (infraorbital 3).Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChlidichthys chagosensisFamilyPseudochromidae (Dottybacks)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length3.1Depth range0–40 m (0–131 ft)EnvironmentMarine; reef-associated; depth range 0 - 40 m, usually 6 - 25 mClimateTropicalDistributionWestern Indian Ocean: known only from the Chagos Archipelago.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