Florent's Guide To The

Tropical Reefs

Convex Crab
Carpilius convexus
Convex Crab
Also known as: Variable Coral Crab
Category: Reef Crabs
Scientific Name: Carpilius convexus
Size: up to 6 in. (15 cm)  
Depth: 1-40 ft. (0-12 m)
Distribution: Indo-Pacific, Red Sea, Hawaii, French Polynesia
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
        └Carpilioidea (Superfamily)
         └Carpiliidae (Family) Reef Crabs
          └Carpilius (Genus)
           └C. convexus (Species)
WoRMS ID: 209150🔗
iNaturalist ID: 120923🔗

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© 2026 Florent Charpin