Florent's Guide To The Hawaiian, South Pacific and

Indo-Pacific Reefs

Longnose Filefish
Oxymonacanthus longirostris
Longnose Filefish
Also known as: Harlequin Filefish, Beaked Leatherjacket
Category: Filefishes
Scientific Name: Oxymonacanthus longirostris
Size: 2 to 3.5 in. (5 to 9 cm)  
Depth: 10-120 ft. (3-37 m)
Distribution: Indo-West Pacific, Australia
Chordata (Phylum) Chordates
└Vertebrata (Subphylum) Vertebrates
 └Osteichthyes (Parvphylum) Bony Fishes
  └Actinopterygii (Gigaclass) Ray-Finned Fish
   └Teleostei (Class) Teleosts
    └Tetraodontiformes (Order)
     └Balistoidei (Suborder)
      └Monacanthidae (Family) Filefishes
       └Oxymonacanthus (Genus)
        └O. longirostris (Species)
WoRMS ID: 220063🔗
iNaturalist ID: 127710🔗

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© 2026 Florent Charpin