Florent's Guide To The

Tropical 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)
 └Malacostraca (Class)
  └Eumalacostraca (Subclass)
   └Decapoda (Order)
    └Pleocyemata (Suborder)
     └Brachyura (Infraorder)
      └Percnidae (Family)
       └Percnon (Genus)

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© 2025 Florent Charpin