Spirobolida

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Spirobolida
File:NarceusAmericanusMillipede.jpg
Narceus americanus
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Diplopoda
Superorder: Juliformia
Order: Spirobolida
Bollman, 1893
Families

12: See text

Synonyms
  • Anocheta Cook, 1895
  • Haplogonophora Brolemann, 1931

Spirobolida is an order of "round-backed" millipedes containing approximately 500 species in 12 families.[1] Its members are distinguished by the presence of a "pronounced suture that runs "vertically down the front of the head".[2] Most of the species live in the tropics, and many are brightly coloured.[2] Mature males have two pairs of modified legs, the gonopods, consisting of the eighth and ninth leg pairs: the posterior gonopods are used in sperm-transfer while the anterior gonopods are fused into a single plate-like structure.[3]

File:Aphistogoniulus jeekeli holotype gonopods 02.png
Front and rear views of the anterior (A, B) and posterior left (C, D) gonopods of a spirobolidan

The families are divided into two suborders:[1]

Suborder Spirobolidea

Suborder Trigoniulidea

Select species

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References

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  • File:Wikispecies-logo.svg Data related to Spirobolida at Wikispecies
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