Cheiragonidae Temporal range:
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Erimacrus isenbeckii | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Malacostraca |
Order: | Decapoda |
Suborder: | Pleocyemata |
Infraorder: | Brachyura |
Superfamily: | Cancroidea |
Family: | Cheiragonidae Ortmann, 1893[1] |
Synonyms[2] | |
Telmessidae Guinot, 1977 |
Cheiragonidae is a small family of crabs, sometimes called helmet crabs,[1] placed in its own superfamily, Cheriagonoidea.[2][3] It comprises three extant species, Erimacrus isenbeckii, Telmessus acutidens and Telmessus cheiragonus,[2] there are no yet evidences of Cheiragonidae in the fossil record.[3][4] Many of these crabs were formerly treated as members of the Atelecyclidae.[5][6]