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Checklist for Superfamily Majoidea Samouelle, 1819 (Spider crabs)
and region Northern Ontario (Ontario, Canada)


Class
 
Malacostraca
Latreille, 1802
Higher Crustaceans, Malacostracans
59
92
117
Families
Genera
Species
 
Taxom
 

Subclass
 
Eumalacostraca
Grobben, 1892
58
91
115
Families
Genera
Species
 
Taxom
 

Superorder
 
Eucarida
Calman, 1904
25
40
57
Families
Genera
Species
 
Taxom
 

Order
 
Decapoda
Latreille, 1802
Crabs, Crayfishes, Decapod, Decapods, Lobsters, Prawns
25
40
57
Families
Genera
Species
 
Taxom
 

Suborder
 
Pleocyemata
Burkenroad, 1963
24
39
56
Families
Genera
Species
 
Taxom
 

Infraorder
 
Brachyura
Linnaeus, 1758
Crabs, Short-tailed crabs, True crabs
11
16
19
Families
Genera
Species
 
Taxom
 

Section
 
Eubrachyura
de Saint Laurent, 1980
11
16
19
Families
Genera
Species
 
Taxom
 

Subsection
 
Heterotremata
Guinot, 1977
7
10
13
Families
Genera
Species
 
Taxom
 

Superfamily
 
Majoidea
Samouelle, 1819
Spider crabs
3
5
5
Families
Genera
Species
 
Taxom
 


List of families for Northern Ontario
3 Families width 5 Species and 1 Subspecies
Oregoniidae Garth, 19582SpeciesTaxom
Majidae Samouelle, 1819Spider crab1SpeciesTaxom
Epialtidae MacLeay, 1838Kelp Crabs2SpeciesTaxom


Genera for Northern Ontario
5 Genera with 5 Species
Chionoecetes Krøyer, 1788Snow crab1SpeciesTaxom
Macropodia Leach, 17611SpeciesTaxom
Oregonia Dana, 18511SpeciesTaxom
Pugettia Dana, 18511SpeciesTaxom
Scyra Dana, 18521SpeciesTaxom


Species list for Northern Ontario
5 Species and 1 Subspecies
Chionoecetes opilio opilio O. Fabricius, 1788
Macropodia rostrata Linnaeus, 1761Common spider crab
Oregonia gracilis Dana, 1851Graceful decorator crab
Pugettia gracilis Dana, 1851Graceful kelp crab
Scyra acutifrons Dana, 1852Sharp-nosed Crab

Subnodes of Majoidea with occurrences in Northern Ontario
FamilyEpialtidae
MacLeay, 1838
Kelp Crabs
2
2
Genera
Species

Taxom

FamilyMajidae
Samouelle, 1819
spider crab, Spider crabs
1
1
Genus
Species

Taxom

FamilyOregoniidae
Garth, 1958
2
2
Genera
Species

Taxom



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