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Checklist for Infraclass Megoperculata Börner, 1902
and region Friday Harbor (San Juan County, Washington, USA)


Class
 		Arachnida
Lamarck, 1801
Arachnids		5
6
6		Families
Genera
Species		 
Taxom
 

Subclass
 		Micrura
Ehrenberg, 1831
5
6
6		Families
Genera
Species		 
Taxom
 

Infraclass
 		Megoperculata
Börner, 1902
4
5
5		Families
Genera
Species		 
Taxom
 


List of families for Friday Harbor
4 Families width 5 Species
Corinnidae Karsch, 1880Ant-like Sac Spiders2SpeciesTaxom
Theridiidae (Sundevall, 1833)Cobweb And Widow Spiders1SpeciesTaxom
Linyphiidae Blackwall, 1859Dwarf spiders1SpeciesTaxom
Segestriidae Simon, 1893Six-eyed Spiders1SpeciesTaxom


Genera for Friday Harbor
5 Genera with 5 Species
Castianeira Keyserling, 1874Ant-Mimic Sac Spiders1SpeciesTaxom
Latrodectus Walckenaer, 1776Black widow spider1SpeciesTaxom
Neriene Blackwall, 18861SpeciesTaxom
Phrurotimpus Chamberlin &..., 19211SpeciesTaxom
Segestria Latreille, 18911SpeciesTaxom


Species list for Friday Harbor
5 Species
Castianeira walsinghami Octavius Pic..., 1874
Latrodectus curacaviensis (Müller, 1776)⇒ Latrodectus variegatus Hercule Nicolet, 1849
Neriene litigiosa Eugen von Ke..., 1886Sierra Dome Spider
Phrurotimpus parallelus Ralph Vary C..., 1921
Segestria pacifica Richard C. B..., 1891

Subnodes of Megoperculata with occurrences in Friday Harbor
OrderAraneae
Clerck, 1757
Spider, Spiders, True Spiders		4
5
5		Families
Genera
Species
Taxom