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Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Castle Rock (Powder River County, Montana, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		6
8
7		Families
Genera
Species		 
Taxom
 


List of families for Castle Rock (Powder River County)
6 Families width 7 Species
Thomisidae Sundevall, 1833Crab Spider2SpeciesTaxom
Lycosidae (Lehtinen & H..., 1979)Ground Spiders1SpeciesTaxom
Salticidae Blackwall, 1842Jumping Spider1SpeciesTaxom
Philodromidae (Thorell, 1870)False crab spiders1SpeciesTaxom
Theridiidae Sundevall, 1833Cobweb And Widow Spiders2SpeciesTaxom
Vaejovidae Thorell, 18760SpeciesTaxom


Genera for Castle Rock (Powder River County)
8 Genera with 7 Species
Mecaphesa Simon, 18471SpeciesTaxom
Pardosa C. L. Koch, 1877Thin-legged Wolf Spider1SpeciesTaxom
Pelegrina Franganillo, 1951White-Cheeked Jumping Spiders1SpeciesTaxom
Philodromus Walckenaer, 1826Running Crab Spider1SpeciesTaxom
Steatoda Sundevall, 1901False black widows1SpeciesTaxom
Theridion Walckenaer, 1901Tangle-Web Spiders1SpeciesTaxom
Vaejovis Koch, 1836
0SpeciesTaxom
Xysticus Koch, 1880Ground Crab Spider1SpeciesTaxom


Species list for Castle Rock (Powder River County)
7 Species
Mecaphesa asperata Nicholas Mar..., 1847Crab Spiders
Pardosa uncata (Tord Tamerla..., 1877)⇒ Pardosa algoides Ehrenfried S..., 1963
Pelegrina clemata Levi & Herbe..., 1951
Philodromus rufus (Walckenaer, 1826)⇒ Philodromus albidus Wladislaus K..., 1911
Steatoda grandis (Richard C. B..., 1901)⇒ Steatoda mexicana Herbert Walt..., 1957
Theridion neomexicanum Richard C. B..., 1901
Xysticus triguttatus Keyserling, 1880Three-banded Crab Spider

Subnodes of Arachnida with occurrences in Castle Rock (Powder River County)
SubclassDromopoda
Shultz, 1990
1
1
0		Family
Genus
Species
Taxom

SubclassMicrura
Ehrenberg, 1831
5
7
7		Families
Genera
Species
Taxom



Arachnida (Lamarck 1801)
Arachnida (Lamarck 1801)


Links, sources and further information
Arachnida at biolcoll.utu.fi
Arachnida at wiki.spinnen-forum.de
Arachnida at spiderling.de
Arachnida at wsc.nmbe.ch
Arachnida at artfakta.se
Arachnida at biodiversity.org.au
Arachnida at dyntaxa.se
Arachnida at gbif.org
Arachnida at irmng.org
Arachnida at itis.gov
Arachnida at marinespecies.org