Florent's Guide To The Florida, Bahamas &

Caribbean 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)
└Crustacea (Subphylum)
 └Multicrustacea (Superclass)
  └Malacostraca (Class)
   └Eumalacostraca (Subclass)
    └Eucarida (Superorder)
     └Decapoda (Order)
      └Pleocyemata (Suborder)
       └Brachyura (Infraorder)
        └Portunoidea (Superfamily)
         └Portunidae (Family)
          └Thalamitinae (Subfamily)
           └Cronius (Genus)
            └C. ruber (Species)

Crustaceans
Swimming Crabs

Blackpoint Sculling Crab

Redhair Swimming Crab

Ocellate Swimming Crab

Blotched Swimming Crab

Speckled Swimming Crab

Ornate Blue Crab

Atlantic Blue Crab

Sargassum Swimming Crab

Indo-Pacific Swimming Crab



All Photographs
© 2025 Florent Charpin