Florent's Guide To The

Tropical Reefs

Threespot Dascyllus
Dascyllus trimaculatus
Threespot Dascyllus
Category: Humbugs
Scientific Name: Dascyllus trimaculatus
Size: Up to 5 in. (12 cm)  
Depth: 3-150 ft. (1-45 m)
Distribution: Indo-Pacific, Red Sea, French Polynesia, Great Barrier Reef
Vertebrata (Subphylum) Vertebrates
 └Osteichthyes (Parvphylum) Bony Fishes
  └Actinopterygii (Gigaclass) Ray-Finned Fish
   └Teleostei (Class) Teleosts
    └Ovalentaria (Order)
     └Pomacentridae (Family) Damselfishes
      └Chrominae (Subfamily) Chromis and Humbugs
       └Dascyllus (Genus) Humbugs
        └D. trimaculatus (Species)

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© 2026 Florent Charpin