Florent's Guide To The Hawaiian, South Pacific and

Indo-Pacific Reefs

Blue-Eyed Rock Crab
Percnon affine
Blue-Eyed Rock Crab
Category: Spray Crabs
Scientific Name: Percnon affine
Size: Up to 3 in. (7.5 cm)  
Depth: 3-15 ft. (1-5 m)
Distribution: Pacific, Hawaii
Arthropoda (Phylum)
└Crustacea (Subphylum)
 └Multicrustacea (Superclass)
  └Malacostraca (Class)
   └Eumalacostraca (Subclass)
    └Eucarida (Superorder)
     └Decapoda (Order)
      └Pleocyemata (Suborder)
       └Brachyura (Infraorder)
        └Grapsoidea (Superfamily)
         └Percnidae (Family)
          └Percnon (Genus)
           └P. affine (Species)
WoRMS ID: 207572🔗
iNaturalist ID: 121798🔗

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© 2026 Florent Charpin