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Checklist for Infraclass Helminthomorpha Pocock, 1887
and region Cowlitz County (Washington, USA)


Class
 		Diplopoda
De Blainville in Gervais, 1844
Diplopods, Millepedes, Millipede, Millipedes		5
7
7		Families
Genera
Species		 
Taxom
 

Subclass
 		Chilognatha
Latreille, 1802
5
7
7		Families
Genera
Species		 
Taxom
 

Infraclass
 		Helminthomorpha
Pocock, 1887
5
7
7		Families
Genera
Species		 
Taxom
 


List of families for Cowlitz County
5 Families width 7 Species and 1 Subspecies
Schizopetalidae Verhoeff, 19091SpeciesTaxom
Julidae Leach, 1814Juliform Millipedes2SpeciesTaxom
Platyrhacidae Pocock, 18951SpeciesTaxom
Polydesmidae Leach, 1815Flat Millipedes2SpeciesTaxom
Spirobolidae Bollman, 18931SpeciesTaxom


Genera for Cowlitz County
7 Genera with 7 Species
Acanthopetalum Verhoeff, 19721SpeciesTaxom
Brachyiulus Berlese, 18151SpeciesTaxom
Ophyiulus Berlese, 18431SpeciesTaxom
Platyrhacus Koch, 18991SpeciesTaxom
Polydesmus Latreille, 1884Flat Backed Millipedes1SpeciesTaxom
Pseudopolydesmus Attems, 18441SpeciesTaxom
Tylobolus Cook, 18641SpeciesTaxom


Species list for Cowlitz County
7 Species and 1 Subspecies
Acanthopetalum hamatum eumenes Hoffman, 1972
Brachyiulus pusillus (Leach, 1815)⇒ Brachyiulus lusitanus Verhoeff, 1898
Ophyiulus pilosus Newport, 1843Walnut Canyon talussnail
Platyrhacus helophorus Attems, 1899
Polydesmus angustus Latzel, 1884Bridge Creek chaparral
Pseudopolydesmus canadensis Newport, 1844Canadian Flat-Back Millipede
Tylobolus uncigerus Wood, 1864Grand Coulee mountainsnail

Subnodes of Helminthomorpha with occurrences in Cowlitz County
SuperorderAnocheta
Cook, 1895
1
1
1		Family
Genus
Species
Taxom

SuperorderCoelocheta
Cook, 1896
1
1
1		Family
Genus
Species
Taxom

SuperorderJuliformia
Attems, 1926
1
2
2		Family
Genera
Species
Taxom

SuperorderMerocheta
Cook, 1895
2
3
3		Families
Genera
Species
Taxom



Links, sources and further information
Helminthomorpha at artfakta.se
Helminthomorpha at itis.gov
Helminthomorpha at marinespecies.org