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)

Crustaceans
Spray Crabs

Blue-Eyed Rock Crab

Nimble Spray Crab

Tidal Spray Crab

Green Flat Rock Crab



All Photographs
© 2025 Florent Charpin