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


Class
 		Diplopoda
De Blainville in Gervais, 1844
Diplopods, Millepedes, Millipede, Millipedes		7
8
8		Families
Genera
Species		 
Taxom
 

Subclass
 		Chilognatha
Latreille, 1802
7
8
8		Families
Genera
Species		 
Taxom
 

Infraclass
 		Helminthomorpha
Pocock, 1887
7
8
8		Families
Genera
Species		 
Taxom
 

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

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


List of families for Sonoma County
3 Families width 3 Species
Cyrtodesmidae Cook, 18961SpeciesTaxom
Platyrhacidae Pocock, 18951SpeciesTaxom
Xystodesmidae Cook, 1895Xystodesmid Millipedes1SpeciesTaxom


Genera for Sonoma County
3 Genera with 3 Species
Cyrtodesmus Gervais, 20181SpeciesTaxom
Platyrhacus Koch, 18991SpeciesTaxom
Xystocheir Cook, 19961SpeciesTaxom


Species list for Sonoma County
3 Species
Cyrtodesmus baerti Shear & Peck, 2018
Platyrhacus helophorus Attems, 1899
Xystocheir prolixorama Shelley, 1996

Subnodes of Polydesmida with occurrences in Sonoma County
SuborderChelodesmidea
Cook, 1895
2
2
2		Families
Genera
Species
Taxom

SuborderPolydesmidea
Leach, 1815
1
1
1		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