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


Class
 		Diplopoda
De Blainville in Gervais, 1844
Diplopods, Millepedes, Millipede, Millipedes		8
11
10		Families
Genera
Species		 
Taxom
 

Subclass
 		Chilognatha
Latreille, 1802
7
10
9		Families
Genera
Species		 
Taxom
 

Infraclass
 		Helminthomorpha
Pocock, 1887
7
10
9		Families
Genera
Species		 
Taxom
 

Superorder
 		Merocheta
Cook, 1895
5
8
7		Families
Genera
Species		 
Taxom
 

Order
 		Polydesmida
Pocock, 1887
Flat-backed Millipedes		5
8
7		Families
Genera
Species		 
Taxom
 


List of families for San Francisco
5 Families width 7 Species and 1 Subspecies
Chelodesmidae Cook, 18951SpeciesTaxom
Xystodesmidae (Cook, 1895)Xystodesmid Millipedes3SpeciesTaxom
Oxydesmidae Cook, 18951SpeciesTaxom
Platyrhacidae Pocock, 18951SpeciesTaxom
Rhachodesmidae Carl, 19031SpeciesTaxom


Genera for San Francisco
8 Genera with 7 Species
Chondrodesmus Silvestri, 1897
0SpeciesTaxom
Harpaphe Cook, 18641SpeciesTaxom
Orodesminus Hoffman, 19311SpeciesTaxom
Platyrhacus Koch, 18991SpeciesTaxom
Plusioporodesmus Silvestri, 18981SpeciesTaxom
Rhysodesmus Cook, 19421SpeciesTaxom
Tiphallus Chamberlin, 19731SpeciesTaxom
Xystocheir Cook, 19491SpeciesTaxom


Species list for San Francisco
7 Species and 1 Subspecies
Harpaphe haydeniana Wood, 1864Almond-scented millipede
Orodesminus macrolophus macrolophus Attems, 1931
Platyrhacus helophorus Attems, 1899
Plusioporodesmus bellicosus Silvestri, 1898
Rhysodesmus potosianus Chamberlin, 1942Coalinga shoulderband
Tiphallus frivolus Causey, 1973
Xystocheir francisca (Chamberlin, 1949)⇒ Xystocheir dissecta dissecta Wood, 1867

Subnodes of Polydesmida with occurrences in San Francisco
SuborderChelodesmidea
Cook, 1895
4
7
6		Families
Genera
Species
Taxom

FamilyOxydesmidae
Cook, 1895
1
1		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