Florent's Guide To The

Tropical Reefs

Blackpoint Sculling Crab
Cronius ruber
Blackpoint Sculling Crab
Category: Swimming Crabs
Scientific Name: Cronius ruber
Size: Up to 3.5 in. (9 cm)  
Depth: 3-200 ft. (1-60 m)
Distribution: Caribbean, Bahamas, Florida
Arthropoda (Phylum) Arthropods
└Crustacea (Subphylum) Crustaceans
 └Multicrustacea (Superclass) Typical Crustaceans
  └Malacostraca (Class) Malacostracans
   └Eumalacostraca (Subclass) Decapods, Isopods, and Allies
    └Eucarida (Superorder)
     └Decapoda (Order) Decapods
      └Pleocyemata (Suborder)
       └Brachyura (Infraorder) True Crabs
        └Portunoidea (Superfamily)
         └Portunidae (Family) Swimming Crabs
          └Thalamitinae (Subfamily)
           └Cronius (Genus)
            └C. ruber (Species)
WoRMS ID: 241109🔗
iNaturalist ID: 195117🔗

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© 2026 Florent Charpin