Location: Rangiroa, French Polynesia
Gray Unicornfish
Naso caesius
Gray Unicornfish
Category: Surgeonfishes
Scientific Name: Naso caesius
Size: Up to 18 in. (45 cm)
Depth: 10-150 ft. (3-45 m)
Distribution: Papua New Guinea, Indonesia, New Caledonia, Micronesia, French Polynesia, Hawaii
Chordata (Phylum)
└Vertebrata (Subphylum)
└Osteichthyes (Parvphylum)
└Actinopterygii (Gigaclass)
└Actinopteri (Superclass)
└Teleostei (Class)
└Acanthuriformes (Order)
└Acanthuridae (Family)
└Naso (Genus)
└N. caesius (Species)
All Photographs
© 2026 Florent Charpin