Florent's Guide To The Hawaiian, South Pacific and

Indo-Pacific Reefs

Purple Urchin Shrimp
Stegopontonia commensalis
Purple Urchin Shrimp
Category: Commensal Shrimps
Scientific Name: Stegopontonia commensalis
Size: Up to 1.5 in (3.5 cm)  
Distribution: Indo-Pacific, Hawaii
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)
       └Caridea (Infraorder) Caridean Shrimps
        └Palaemonoidea (Superfamily)
         └Palaemonidae (Family) Commensal Shrimps
          └Stegopontonia (Genus)
           └S. commensalis (Species)
WoRMS ID: 220196🔗
iNaturalist ID: 121223🔗

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© 2026 Florent Charpin