Checklist for Superfamily Majoidea Samouelle, 1819 (Spider crabs) and region USA (North America)
Class | Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 471 2820 10434 | Families Genera Species | Taxom | Subclass | Eumalacostraca Grobben, 1892
| 459 2798 10382 | Families Genera Species | Taxom | Superorder | Eucarida Calman, 1904
| 186 1289 5282 | Families Genera Species | Taxom | Order | Decapoda Latreille, 1802 Crabs, Crayfishes, Decapod, Decapods, Lobsters, Prawns | 183 1277 5217 | Families Genera Species | Taxom | Suborder | Pleocyemata Burkenroad, 1963
| 169 1210 4981 | Families Genera Species | Taxom | Infraorder | Brachyura Linnaeus, 1758 Crabs, Short-tailed crabs, True crabs | 96 729 2149 | Families Genera Species | Taxom | Section | Eubrachyura de Saint Laurent, 1980
| 80 632 1940 | Families Genera Species | Taxom | Subsection | Heterotremata Guinot, 1977
| 62 520 1542 | Families Genera Species | Taxom | Superfamily | Majoidea Samouelle, 1819 Spider crabs | 9 123 337 | Families Genera Species | Taxom |
List of families for USA 9 Families width 337 Species and 10 Subspecies
Subnodes of Majoidea with occurrences in USA | Family | Epialtidae MacLeay, 1838 Kelp Crabs | 50 116 | Genera Species | Taxom
| | Family | Eurypodiidae MacLeay, 1838
| 1 1 | Genus Species | Taxom
| | Family | Inachidae MacLeay, 1838
| 22 51 | Genera Species | Taxom
| | Family | Inachoididae Dana, 1851
| 8 23 | Genera Species | Taxom
| | Family | Macrocheiridae Dana, 1851
| 1 2 | Genus Species | Taxom
| | Family | Majidae Samouelle, 1819 spider crab, Spider crabs | 22 64 | Genera Species | Taxom
| | Family | Mithracidae Balss, 1929
| 14 60 | Genera Species | Taxom
| | Family | Oregoniidae Garth, 1958
| 4 13 | Genera Species | Taxom
| | Family | Tychidae Dana, 1851 Urn crabs | 1 7 | Genus Species | Taxom
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Links, sources and further information Majoidea at artfakta.se Majoidea at biodiversity.org.au Majoidea at dyntaxa.se Majoidea at itis.gov Majoidea at marinespecies.org
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