Species list, Checklist of Order Spirobolida (Round-backed millipedes) for Middlesex County (Massachusetts, USA)

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Checklist for Order Spirobolida Cook, 1895 (Round-backed millipedes)
and region Middlesex County (Massachusetts, USA)

Class	Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes	13 24 28	Families Genera Species	Taxom
Subclass	Chilognatha Latreille, 1802	12 23 27	Families Genera Species	Taxom
Infraclass	Helminthomorpha Pocock, 1887	12 23 27	Families Genera Species	Taxom
Superorder	Anocheta Cook, 1895	2 2 2	Families Genera Species	Taxom
Order	Spirobolida Cook, 1895 Round-backed millipedes	2 2 2	Families Genera Species	Taxom

List of families for Middlesex County (Massachusetts)
2 Families width 2 Species

Spirobolidae (Bollman, 1893)		1	Species	Taxom
Trigoniulidae Attems, 1909		1	Species	Taxom

Genera for Middlesex County (Massachusetts)
2 Genera with 2 Species

Narceus Rafinesque, 1820		1	Species	Taxom
Trigoniulus Pocock, 1945		1	Species	Taxom

Species list for Middlesex County (Massachusetts)
2 Species

Narceus annularis (Rafinesque, 1820)	⇒ Narceus annularus Rafinesque, 1820
Trigoniulus amnestus Chamberlin, 1945

Subnodes of Spirobolida with occurrences in Middlesex County (Massachusetts)

Suborder	Trigoniulidea Brölemann, 1913	1 1 1	Family Genus Species	Taxom
Family	Spirobolidae Bollman, 1893	1 1	Genus Species	Taxom

Links, sources and further information

Spirobolida at artfakta.se
Spirobolida at dyntaxa.se
Spirobolida at gbif.org
Spirobolida at irmng.org
Spirobolida at itis.gov