Florent's Guide To The

South Florida Reefs

Longsnout Butterflyfish
Prognathodes aculeatus
Longsnout Butterflyfish
Category: Butterflyfishes
Scientific Name: Prognathodes aculeatus
Synonyms: Chaetodon aculeatus, Chelmon aculeatus
Size: 2 to 3 in. (5 to 8 cm)  
Depth: 30-200 ft. (10-60 m)
Distribution: Caribbean, Bahamas, Florida, Bermuda, Gulf of America
Chordata (Phylum) Chordates
└Vertebrata (Subphylum) Vertebrates
 └Osteichthyes (Parvphylum) Bony Fishes
  └Actinopterygii (Gigaclass) Ray-Finned Fish
   └Teleostei (Class) Teleosts
    └Acanthuriformes (Order)
     └Chaetodontidae (Family) Butterflyfishes
      └Prognathodes (Genus)
       └P. aculeatus (Species)
WoRMS ID: 273369🔗
iNaturalist ID: 110594🔗

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© 2026 Florent Charpin