Florent's Guide To The

Tropical 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)
└Osteichthyes (Parvphylum)
 └Actinopterygii (Gigaclass)
  └Actinopteri (Superclass)
   └Teleostei (Class)
    └Acanthuriformes (Order)
     └Chaetodontidae (Family)
      └Prognathodes (Genus)

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© 2025 Florent Charpin