Florent's Guide To The

Tropical 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)
└Osteichthyes (Parvphylum)
 └Actinopterygii (Gigaclass)
  └Actinopteri (Superclass)
   └Teleostei (Class)
    └Tetraodontiformes (Order)
     └Monacanthidae (Family)
      └Oxymonacanthus (Genus)

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© 2025 Florent Charpin