Gueze's butterflyfish (Prognathodes guezei) is a ray-finned fish of the family Chaetodontidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 11 cm. With a trophic level of 3.3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.
White overall with two broad black bars on sides extending onto dorsal fin; narrower black bar from dorsal fin origin, through eye, to snout; darkened rear margin of dorsal and anal fins, and black bar across tail base .: short and / or deep.
Behavioural data for Gueze's butterflyfish is currently being reviewed.
Diet information for Gueze's butterflyfish is currently being compiled.
Form pairs during breeding .
Marine; reef-associated; depth range 80 - ? m , usually 100 - ? m . Tropical Indian Ocean: Comoros, Réunion, and Mauritius.
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