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Checklist for Class Arachnida Lamarck, 1801 (Arachnids)
and region Petersham (Worcester County, Massachusetts, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		7
9
8		Families
Genera
Species		 
Taxom
 


List of families for Petersham (Worcester County Massachusetts)
7 Families width 8 Species
Araneidae Simon, 1895Golden orb web spiders0SpeciesTaxom
Caddidae Banks, 18922SpeciesTaxom
Linyphiidae Blackwall, 1859Dwarf spiders2SpeciesTaxom
Neobisiidae Chamberlin, 19301SpeciesTaxom
Phalangiidae Latreille, 1802Daddy-Long-Legs1SpeciesTaxom
Corinnidae Karsch, 1880Ant-like Sac Spiders1SpeciesTaxom
Thomisidae Sundevall, 1833Crab Spider1SpeciesTaxom


Genera for Petersham (Worcester County Massachusetts)
9 Genera with 8 Species
Araniella Chamberlin &..., 1942
Cucumber spiders0SpeciesTaxom
Caddo Banks, 19742SpeciesTaxom
Ceraticelus Simon, 18821SpeciesTaxom
Microbisium Chamberlin, 18681SpeciesTaxom
Odiellus Roewer, 1923
0SpeciesTaxom
Oedothorax Bertkau, 18821SpeciesTaxom
Phalangium Linnaeus, 17611SpeciesTaxom
Phrurotimpus Chamberlin &..., 19111SpeciesTaxom
Xysticus Koch, 1880Ground Crab Spider1SpeciesTaxom


Species list for Petersham (Worcester County Massachusetts)
8 Species
Caddo agilis Banks, 1892
Caddo pepperella Shear, 1974
Ceraticelus minutus James Henry ..., 1882
Microbisium brunneum Hagen, 1868
Oedothorax montifer James Henry ..., 1882
Phalangium opilio Linnaeus, 1761Brown daddy-long-legs
Phrurotimpus borealis James Henry ..., 1911Greater Ant-Mimic Corinne Spider
Xysticus discursans Eugen von Ke..., 1880

Subnodes of Arachnida with occurrences in Petersham (Worcester County Massachusetts)
SubclassDromopoda
Shultz, 1990
3
4
4		Families
Genera
Species
Taxom

SubclassMicrura
Ehrenberg, 1831
4
5
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