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Checklist for Order Polydesmida Pocock, 1887 (Flat-backed Millipedes)
and region Clark County (Washington, USA)


Class
 		Diplopoda
De Blainville in Gervais, 1844
Diplopods, Millepedes, Millipede, Millipedes		5
6
4		Families
Genera
Species		 
Taxom
 

Subclass
 		Chilognatha
Latreille, 1802
5
6
4		Families
Genera
Species		 
Taxom
 

Infraclass
 		Helminthomorpha
Pocock, 1887
5
6
4		Families
Genera
Species		 
Taxom
 

Superorder
 		Merocheta
Cook, 1895
3
3
1		Families
Genera
Species		 
Taxom
 

Order
 		Polydesmida
Pocock, 1887
Flat-backed Millipedes		3
3
1		Families
Genera
Species		 
Taxom
 


List of families for Clark County (Washington)
3 Families width 1 Species
Xystodesmidae Cook, 1895Xystodesmid Millipedes0SpeciesTaxom
Platyrhacidae Pocock, 18951SpeciesTaxom
Polydesmidae Leach, 1815Flat Millipedes0SpeciesTaxom


Genera for Clark County (Washington)
3 Genera with 1 Species
Harpaphe Cook, 1904
0SpeciesTaxom
Platyrhacus Koch, 18991SpeciesTaxom
Scytonotus Koch, 1847
0SpeciesTaxom


Species list for Clark County (Washington)
1 Species
Platyrhacus helophorus Attems, 1899

Subnodes of Polydesmida with occurrences in Clark County (Washington)
SuborderChelodesmidea
Cook, 1895
2
2
1		Families
Genera
Species
Taxom

SuborderPolydesmidea
Leach, 1815
1
1
0		Family
Genus
Species
Taxom



Links, sources and further information
Polydesmida at artfakta.se
Polydesmida at dyntaxa.se
Polydesmida at gbif.org
Polydesmida at irmng.org
Polydesmida at itis.gov