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Checklist for Suborder Epiocheirata Harvey, 1992
and region Washington (West USA, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		145
414
648		Families
Genera
Species		 
Taxom
 

Subclass
 		Dromopoda
Shultz, 1990
23
55
73		Families
Genera
Species		 
Taxom
 

Order
 		Pseudoscorpiones
Haeckel, 1866
False Scorpions, Pseudoscorpion, Pseudoscorpions		10
20
22		Families
Genera
Species		 
Taxom
 

Suborder
 		Epiocheirata
Harvey, 1992
1
4
7		Family
Genera
Species		 
Taxom
 


List of families for Washington
1 Family width 7 Species
Chthoniidae Daday, 18887SpeciesTaxom


Genera for Washington
4 Genera with 7 Species
Apochthonius J. C. Chambe..., 19662SpeciesTaxom
Chthonius Koch, 18913SpeciesTaxom
Mundochthonius J. C. Chambe..., 18931SpeciesTaxom
Pseudotyrannochthonius Beier, 19701SpeciesTaxom


Species list for Washington
7 Species
Apochthonius intermedius Chamberlin, 1929
Apochthonius minimus R. O. Schuster, 1966Trinidad milkvetch
Chthonius (Chthonius) ischnocheles Hermann, 1804Common Chthonid
Chthonius (Ephippiochthonius) tetrachelatus Preyssler, 1790Dimple-clawed Chthonid
Chthonius longipalpis (Banks, 1891)⇒ Chthonius tetrachelatus Preyssler, 1790
Mundochthonius pacificus Banks, 1893
Pseudotyrannochthonius gracilis Benedict & M..., 1970

Subnodes of Epiocheirata with occurrences in Washington
SuperfamilyChthonioidea
Daday, 1888
1
4
7		Family
Genera
Species
Taxom