Polyzoniida

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Polyzoniida
Octoglena bivirgata Santa Cruz county.jpg
Octoglena bivirgata from the western United States
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Diplopoda
Subclass: Chilognatha
Infraclass: Helminthomorpha
Order: Polyzoniida
Cook, 1895
Families
Synonyms

Ommatophora Brandt, 1840
Orthozonia Verhoeff, 1840

Polyzoniida is an order of millipedes in the subclass Colobognatha containing three families and at least 74 described species.[1]

Description[edit]

Male Bdellozonium cerviculatum from the western United States viewed from below and above

Polyzoniidans have a somewhat domed dorsal surface with a flat ventral side. Their heads are small and cone-like, with few ocelli. They lack a dorsal groove and paranota (lateral extensions of each segment).[2]

Classification[edit]

The order Polyzoniida contains three families:[1]

Hirudisomatidae Silvestri, 1896 (6 genera, 20 species)
Polyzoniidae Newport, 1844 (6 genera, 22 species)
Siphonotidae Cook, 1895 (12 genera, 32 species)

Distribution[edit]

The family Hirudisomatidae occurs from Spain to the Himalayas in Eurasia, Japan, and in North America from southwest Canada to central Mexico.
Polyzoniidae has a holoractic (northern hemisphere) distribution, occurring in the northwest and northeast United States, eastern Canada, and in Europe from the United Kingdom and France to Siberia.
Siphonotidae has a southern distribution, occurring in Brazil and Chile, South Africa, Southeast Asia, Indonesia, Tasmania, and New Zealand.[3][4]

References[edit]

  1. ^ a b Shear, W. (2011). "Class Diplopoda de Blainville in Gervais, 1844" (PDF). In Zhang, Z.-Q. Animal biodiversity: an outline of higher-level classification and survey of taxonomic richness. Zootaxa. 3148. pp. 159–164. ISBN 978-1-86977-850-7. 
  2. ^ "Diagnostic features of Millipede Orders" (PDF). Milli-PEET Identification Tables. The Field Museum, Chicago. Retrieved 25 October 2013. 
  3. ^ "Geographic distribution of Millipede Families" (PDF). Milli-PEET Identification Tables. The Field Museum, Chicago. Retrieved 25 October 2013. 
  4. ^ Mesibov, Robert. "Millipede species: Polyzoniida". Tasmanian Multipedes. Retrieved 14 November 2013. 

External links[edit]