Chagos (British Indian Ocean Territory)
Checklist of Endemic Marine Fish Species
This list of marine fish species found exclusively in the Chagos Islands is based on the taxonomy used in Eschmeyer's Catalog of Fishes (2023). For further details on possible inaccuracies in the list see Sources & Caveats.
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds) 2023 Catalog of Fishes: Genera, Species, References. Version downloaded 9 February 2023 https://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp
The current version can be accessed here
Chlidichthys chagosensis
(Cichliformes Pseudochromidae) Chagos Dottyback
Paragunnellichthys
fehlmanni (Gobiiformes Microdesmidae) Fehlmann's Wormfish
Ammodytoides praematura
(Perciformes Ammodytidae) Small Sandlance
Cirrhilabrus rubrisquamis (Perciformes Labridae) Rosyscaled Fairy Wrasse
Additional deep-sea species (below 200 m) recorded only from the British Indian Ocean Territory:Sladenia gardineri
(Lophiiformes Lophiidae) Indian Rounded Angler