Florent's Guide To The

Tropical Reefs

Blackbar Chromis
Pycnochromis retrofasciatus
Blackbar Chromis
Category: Chromis
Scientific Name: Pycnochromis retrofasciatus
Synonyms: Chromis retrofasciata
Size: Up to 2 in. (5 cm)  
Distribution: Indonesia, Philippines, Micronesia, Papua New Guinea, Solomon Islands, Great Barrier Reef, Fiji
Chordata (Phylum) Chordates
└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
       └Pycnochromis (Genus) Chromis
        └P. retrofasciatus (Species)
WoRMS ID: 1592353🔗
iNaturalist ID: 1316752🔗

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© 2026 Florent Charpin