Rangiroa, French Polynesia
Bali, Indonesia
Florent's Guide To The Hawaiian, South Pacific and
Indo-Pacific Reefs
Gray Unicornfish
Naso caesius
Gray Unicornfish
Category: Unicornfishes
Scientific Name: Naso caesius
Size: Up to 18 in. (45 cm)
Depth: 10-150 ft. (3-45 m)
Distribution: Philippines, Indonesia, Papua New Guinea
Chordata (Phylum)
└Vertebrata (Subphylum)
└Osteichthyes (Parvphylum)
└Actinopterygii (Gigaclass)
└Teleostei (Class)
└Acanthuriformes (Order)
└Acanthuridae (Family)
└Naso (Genus)
└N. caesius (Species)
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© 2026 Florent Charpin