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Checklist for Infraclass Helminthomorpha Pocock, 1887
and region Butler County (Pennsylvania, USA)


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

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

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


List of families for Butler County (Pennsylvania)
7 Families width 7 Species
Abacionidae Shelley, 19790SpeciesTaxom
Blaniulidae C. L. Koch, 1847Blaniulid Millipedes1SpeciesTaxom
Spirobolidae (Bollman, 1893)1SpeciesTaxom
Platyrhacidae Pocock, 18951SpeciesTaxom
Xystodesmidae Cook, 1895Xystodesmid Millipedes1SpeciesTaxom
Polydesmidae Leach, 1815Flat Millipedes2SpeciesTaxom
Parajulidae Bollman, 1893Parajulid Millipedes1SpeciesTaxom


Genera for Butler County (Pennsylvania)
7 Genera with 7 Species
Abacion Rafinesque, 1820
0SpeciesTaxom
Blaniulus Gervais, 17981SpeciesTaxom
Narceus Rafinesque, 18201SpeciesTaxom
Platyrhacus Koch, 18991SpeciesTaxom
Pleuroloma Rafinesque, 18201SpeciesTaxom
Pseudopolydesmus Attems, 18212SpeciesTaxom
Uroblaniulus Attems, 18441SpeciesTaxom


Species list for Butler County (Pennsylvania)
7 Species
Blaniulus guttulatus Fabricius, 1798Millipede
Narceus annularis (Rafinesque, 1820)⇒ Narceus annularus Rafinesque, 1820
Platyrhacus helophorus Attems, 1899
Pleuroloma flavipes Rafinesque, 1820Barren milkvetch
Pseudopolydesmus canadensis Newport, 1844Canadian Flat-Back Millipede
Pseudopolydesmus serratus Say, 1821Common Pink Flat-Back Millipede
Uroblaniulus canadensis Newport, 1844Mendocino shoulderband

Subnodes of Helminthomorpha with occurrences in Butler County (Pennsylvania)
SuperorderAnocheta
Cook, 1895
1
1
1		Family
Genus
Species
Taxom

SuperorderCoelocheta
Cook, 1896
1
1
0		Family
Genus
Species
Taxom

SuperorderJuliformia
Attems, 1926
2
2
2		Families
Genera
Species
Taxom

SuperorderMerocheta
Cook, 1895
3
3
4		Families
Genera
Species
Taxom



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