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iNat·51603OrderAnimalia140,973 field observations
  1. Animals
  2. ›Arthropods
  3. ›Myriapods
  4. ›Millipedes
  5. ›Chilognathan Millipedes
  6. ›Worm-like Millipedes
  7. ›Eugnatha
  8. ›Round-backed Millipedes
Iron Millipedes
Plate 1 of 7. (c) Graham Wise, some rights reserved (CC BY) · via iNaturalist

Iron Millipedes

Spirobolida

Spirobolida is an order of "round-backed" millipedes containing approximately 500 species in 12 families. Its members are distinguished by the presence of a "pronounced suture that runs "vertically down the front of the head". Most of the species live in the tropics, and many are brightly coloured. 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.

The families are divided into two suborders:

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5 branches of this order, most-observed first

Spirobolidea

suborderSpirobolidea

Trigoniulidea

suborderTrigoniulidea

Rhinocricidea

suborderRhinocricidea

Amblybolus

genusAmblybolus

Banosolus

genusBanosolus

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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In the stacks

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Every page naming Spirobolida in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 51603.