Florent's Guide To The

Tropical 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) Chordates
└Vertebrata (Subphylum) Vertebrates
 └Osteichthyes (Parvphylum) Bony Fishes
  └Actinopterygii (Gigaclass) Ray-Finned Fish
   └Teleostei (Class) Teleosts
    └Acanthuriformes (Order)
     └Acanthuridae (Family) Surgeonfishes
      └Naso (Genus) Unicornfishes
       └N. caesius (Species)
WoRMS ID: 278004🔗
iNaturalist ID: 187728🔗

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© 2026 Florent Charpin