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Checklist for Infraorder Astacidea Latreille, 1802 (Crayfish)
and region Middlesex County (Massachusetts, USA)


Class
 		Malacostraca
Latreille, 1802
Higher Crustaceans, Malacostracans		50
62
82		Families
Genera
Species		 
Taxom
 

Subclass
 		Eumalacostraca
Grobben, 1892
50
62
82		Families
Genera
Species		 
Taxom
 

Superorder
 		Eucarida
Calman, 1904
19
24
36		Families
Genera
Species		 
Taxom
 

Order
 		Decapoda
Latreille, 1802
Crabs, Crayfishes, Decapod, Decapods, Lobsters, Prawns		19
24
36		Families
Genera
Species		 
Taxom
 

Suborder
 		Pleocyemata
Burkenroad, 1963
18
23
35		Families
Genera
Species		 
Taxom
 

Infraorder
 		Astacidea
Latreille, 1802
Crayfish, Crayfishes and Lobsters, Lobsters		2
4
12		Families
Genera
Species		 
Taxom
 


List of families for Middlesex County (Massachusetts)
2 Families width 12 Species
Cambaridae Hobbs, 1942Cambarid crayfishes11SpeciesTaxom
Nephropidae Dana, 1852Clawed Lobster1SpeciesTaxom


Genera for Middlesex County (Massachusetts)
4 Genera with 12 Species
Cambarus Erichson, 18522SpeciesTaxom
Homarus Weber, 17581SpeciesTaxom
Orconectes Cope, 18706SpeciesTaxom
Procambarus Ortmann, 18523SpeciesTaxom


Species list for Middlesex County (Massachusetts)
12 Species
Cambarus (Cambarus) bartonii Fabricius, 1798Appalachian brook crayfish
Cambarus (Puncticambarus) robustus Girard, 1852Big water crayfish
Homarus gammarus Linnaeus, 1758Common lobster
Orconectes (Crockerinus) obscurus Hagen, 1870Allegheny crayfish
Orconectes (Crockerinus) propinquus Girard, 1852Northern clearwater crayfish
Orconectes (Faxonius) limosus Rafinesque, 1817Delcore Crayfish
Orconectes (Gremicambarus) virilis Hagen, 1870Common Crawfish
Orconectes (Procericambarus) rusticus Girard, 1852Rusty crayfish
Orconectes (Trisellescens) immunis Hagen, 1870Calico crayfish
Procambarus (Leconticambarus) alleni Faxon, 1884Blue Cray Fish
Procambarus (Ortmannicus) acutus Girard, 1852White river crawfish
Procambarus (Scapulicambarus) clarkii Girard, 1852American crayfish

Subnodes of Astacidea with occurrences in Middlesex County (Massachusetts)
SuperfamilyAstacoidea
Latreille, 1802
Crawdads, Crawfish, Crayfish, Crayfishes, Freshwater lobsters, Mudbugs, Northern hemisphere crawfish		1
3
11		Family
Genera
Species
Taxom

SuperfamilyNephropoidea
Dana, 1852
1
1
1		Family
Genus
Species
Taxom



Links, sources and further information
Astacidea at artfakta.se
Astacidea at biodiversity.org.au
Astacidea at dyntaxa.se
Astacidea at itis.gov
Astacidea at marinespecies.org