Florent's Guide To The

Tropical Reefs

Half-and-Half Chromis
Pycnochromis iomelas
Half-and-Half Chromis
Category: Chromis
Scientific Name: Pycnochromis iomelas
Synonyms: Chromis iomelas
Size: Up to 3.5 in. (9 cm)  
Depth: 6-130 ft. (2-40 m)
Distribution: Great Barrier Reef, Papua New Guinea, Fiji, New Caledonia, French Polynesia
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. iomelas (Species)
WoRMS ID: 1592380🔗
iNaturalist ID: 1316139🔗

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© 2026 Florent Charpin