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Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Alta (Placer County, California, USA)


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


List of families for Alta (Placer County)
4 Families width 4 Species
Araneidae Simon, 1895Golden orb web spiders1SpeciesTaxom
Johnstonianidae Thor, 19351SpeciesTaxom
Anapidae Simon, 1895Anapid spiders1SpeciesTaxom
Phytoptidae Manson, 19701SpeciesTaxom


Genera for Alta (Placer County)
4 Genera with 4 Species
Araneus Clerck, 1758Angulate & roundshouldered orbweavers1SpeciesTaxom
Centrotrombidium Kramer, 19571SpeciesTaxom
Metanapis Godman & Salvin, 19741SpeciesTaxom
Trisetacus Keifer, 18871SpeciesTaxom


Species list for Alta (Placer County)
4 Species
Araneus diadematus Clerck, 1758Cross orbweaver
Centrotrombidium culicoides Vercammen-Gr..., 1957
Metanapis plutella Raymond Robe..., 1974
Trisetacus pini Nalepa, 1887Pine bud mite

Subnodes of Arachnida with occurrences in Alta (Placer County)
SubclassMicrura
Ehrenberg, 1831
4
4
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