Ommatoiulus

Ommatoiulus
Ommatoiulus rutilans
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Diplopoda
Order: Julida
Family: Julidae
Genus: Ommatoiulus
Latzel, 1884
Synonyms

Schizophyllum

Ommatoiulus is a genus of millipedes in the family Julidae.

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The taxonomy of the genus has had a complicated history. As it stands now, there are approximately 60 described species, but this is likely to change. At least 10 new species were described in 2012, and those just from Spain.[1] Six new species were described from Portugal in 2017.[2] There are many millipedes known to belong to this genus that do not yet have official names.[3]

Ommatoiulus sabulosus

This genus is distinguished by the position of the ozopores, the shape of the ocelli and the gonopod legs, the presence of accessory claws on the juveniles, and the presence in males of a large fovea, a cavity where sperm are stored.[1]

Familiar species include the black Portuguese millipede (Ommatoiulus moreletii). It is an invasive species in Australia known for its "plagues", when it emerges in swarms so massive that they stop trains, which crush them in huge numbers and make the rails slippery. Like some other millipedes, it produces a secretion with an obnoxious odor and tendency to stain floors when the swarms invade houses.[4] Another well-known species is the striped millipede (O. sabulosus), which also swarms. In 2002 it flooded the streets of Dąbrowa Górnicza in Poland, "causing panic among the inhabitants". Swarms in France have consisted of "thousands of millions" of individuals, far too many to count. This species has also been known to stop trains.[5]

Species include:[1][6][2]

References

  1. ^ a b c Akkari, N. and H. Enghoff. (2012). Review of the genus Ommatoiulus in Andalusia, Spain (Diplopoda: Julida) with description of ten new species and notes on a remarkable gonopod structure, the fovea. Archived 2016-03-04 at the Wayback Machine Zootaxa 3538 1-58.
  2. ^ a b Akkari, Nesrine; Enghoff, Henrik (9 March 2017). "Revision of the genus Ommatoiulus Latzel, 1884 (Julida, Diplopoda) in Portugal, with description of six new species". European Journal of Taxonomy (295). doi:10.5852/ejt.2017.295. ISSN 2118-9773. S2CID 90905197. Retrieved 31 August 2021.
  3. ^ Bailey, P. T. and T. R. de Mendonça. (1990). The distribution of the millipede Ommatoiulus moreleti (Diplopoda, Julida: Julidae) in relation to other Ommatoiulus species on the south-western Iberian Peninsula. Journal of Zoology 221(1) 99–111.
  4. ^ Yuncken, L. Millipede madness. ABC Science. April 5, 2007.
  5. ^ VERHOEFF K. W. (1900): Wandernde Doppelfüßler, Eisenbahnzüge hemmend; in Zool. Anz., 23, p. 465—473.
  6. ^ Genus Ommatoiulus. Systema Naturae 2000.

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