Position in a system
| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Unikonta |
| system | Opisthokonta Cavalier-Smith, 1987 |
| kingdom | Animalia Linnaeus, 1758 - animals |
| subregnum | Eumetazoa Butschli, 1910 |
| divisio | Bilateria Hatschek, 1888 - bilaterians |
| subdivisio | Protostomia Grobben, 1908 - protostomes |
| phylum | Arthropoda Latreille, 1829 - arthropods |
| subphylum | Crustacea Brünnich, 1772 - crustaceans |
| class | Malacostraca Latreille, 1802 |
| subclass | Eumalacostraca Grobben, 1892 |
| superorder | Eucarida Calman, 1904 |
| order | Decapoda Latreille, 1802 - crayfish |
| suborder | Pleocyemata Burkenroad, 1963 |
| infraorder | Brachyura Latreille, 1802 - crabs |
| section | Eubrachyura |
| subsection | Heterotremata |
| superfamily | Calappoidea Milne Edwards, 1837 |
| family | Calappidae Milne Edwards, 1837 |
| genus | Mursia Desmarest, 1823 |
| species | Mursia spinimanus M. J. Rathbun, 1906 |
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