Florent's Guide To The Florida, Bahamas and

Caribbean Reefs

Island Frillfin Goby
Bathygobius mystacium
Island Frillfin Goby
Category: Gobies
Scientific Name: Bathygobius mystacium
Size: Up to 3 in. (7 cm)  
Depth: 0-10 ft. (0-3 m)
Distribution: Bahamas, Caribbean, Florida
Chordata (Phylum) Chordates
└Vertebrata (Subphylum) Vertebrates
 └Osteichthyes (Parvphylum) Bony Fishes
  └Actinopterygii (Gigaclass) Ray-Finned Fish
   └Teleostei (Class) Teleosts
    └Gobiiformes (Order)
     └Gobiidae (Family) Gobies
      └Gobiinae (Subfamily)
       └Bathygobius (Genus)
        └B. mystacium (Species)

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© 2026 Florent Charpin