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Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Atkinson (Henry County, Illinois, USA)


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


List of families for Atkinson (Henry County Illinois)
3 Families width 4 Species
Linyphiidae Blackwall, 1859Dwarf spiders2SpeciesTaxom
Araneidae Simon, 1895Golden orb web spiders1SpeciesTaxom
Sclerosomatidae Simon, 1879Sclerosomatid Harvestmen1SpeciesTaxom


Genera for Atkinson (Henry County Illinois)
4 Genera with 4 Species
Floricomus Crosby & Bishop, 18821SpeciesTaxom
Hypsosinga Ausserer, 18311SpeciesTaxom
Leiobunum C. L. Koch, 1821Daddy Long Leg Spiders1SpeciesTaxom
Mermessus O. P.-Cambridge, 19141SpeciesTaxom


Species list for Atkinson (Henry County Illinois)
4 Species
Floricomus rostratus James Henry ..., 1882
Hypsosinga pygmaea Sundevall, 1831
Leiobunum vittatum Say, 1821Eastern Harvestman
Mermessus undulatus James Henry ..., 1914

Subnodes of Arachnida with occurrences in Atkinson (Henry County Illinois)
SubclassDromopoda
Shultz, 1990
1
1
1		Family
Genus
Species
Taxom

SubclassMicrura
Ehrenberg, 1831
2
3
3		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