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Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Clackamas County (Portland, Multnomah County, Oregon, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		3
3
4		Families
Genera
Species		 
Taxom
 


List of families for Clackamas County
3 Families width 4 Species
Tenuipalpidae Berlese, 1913False spider mites1SpeciesTaxom
Ologamasidae Ryke, 19622SpeciesTaxom
Tetranychidae Donnadieu, 1875Spider mites1SpeciesTaxom


Genera for Clackamas County
3 Genera with 4 Species
Aegyptobia Sayed, 19771SpeciesTaxom
Euryparasitus Oudemans, 20052SpeciesTaxom
Oligonychus Berlese, 19501SpeciesTaxom


Species list for Clackamas County
4 Species
Aegyptobia montana Bury & Krantz, 1977
Euryparasitus calcarator Banks, 1910
Euryparasitus occidentalis Hagele, Kauf..., 2005
Oligonychus (Pritchardinychus) pritchardi McGregor, 1950

Subnodes of Arachnida with occurrences in Clackamas County
SubclassMicrura
Ehrenberg, 1831
3
3
4		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