Arion (gastropod)

Arion is a genus of air-breathing land slugs in the family Arionidae, the roundback slugs. Most species of this Palearctic genus are native to the Iberian Peninsula.[2]

Orange slug.jpg
Arion rufus
Scientific classification


See text

Species can be difficult to distinguish from one another upon cursory examination, because individuals of a species can vary in color and there are few obvious differences between taxa.[3] The color of an individual can be influenced by its diet.[4]

Some Arion are known as pests, such as A. lusitanicus auct. non Mabille (= A. vulgaris), which damages agricultural crops and ornamental plants, and A. rufus, a familiar garden pest.[5] Arion slugs are often transported internationally in shipments of plant products and mushrooms.[6]


There are approximately 40 species in the genus.[4]

Species include:

Also includedEdit


  1. ^ Férussac, A. E. and G. Deshayes. 1819–1851. Histoire naturelle générale et particulière des mollusques terrestres et fluviatiles, tant des espèces que l'on trouve aujourd'hui vivantes, que des dépouilles fossiles de celles qui n'existent plus; classés d'après les caractères essentiels que présentent ces animaux et leurs coquilles. pp. Tome 1: 8 + 184 pp.; Tome 2 (1): 402 pp.; 2 (2): 260 + 22 + 16 pp.; Atlas 1: 70 pl.; Atlas 2: 166 + 5 pl.. Paris. (J.-B. Bailliere).
  2. ^ Quinteiro, J., et al. (2005). Phylogeny of slug species of the genus Arion: evidence of monophyly of Iberian endemics and of the existence of relict species in Pyrenean refuges. Journal of Zoological Systematics and Evolutionary Research 43(2), 139-48.
  3. ^ Skujienė, G. and M. Soroka. (2003). A comparison of different DNA extraction methods for slugs (Mollusca: Pulmonata). Ekologija 1, 12-16.
  4. ^ a b Jordaens, K., et al. (2001). Food-induced body pigmentation questions the taxonomic value of colour in the self-fertilizing slug Carinarion spp. Journal of Molluscan Studies 67(2), 161-67.
  5. ^ Soroka, M., et al. (2008). Distribution and genetic diversity of the terrestrial slugs Arion lusitanicus Mabille, 1868 and Arion rufus (Linnaeus, 1758) in Poland based on mitochondrial DNA. Folia Biologica 57(1-2), 1-2.
  6. ^ Barr, N. B., et al. (2009). Application of a DNA barcode using the 16S rRNA gene to diagnose pest Arion species in the USA. Journal of Molluscan Studies 75(2), 187-91.
  7. ^ a b Manganelli, G., et al. (2010). The status of Arion alpinus Pollonera 1887, and re-description of Arion obesoductus Reischütz 1973 (Gastropoda, Arionidae). Journal of Conchology 40, 269-76.
  8. ^ Jordaens, K., et al. (2010). Arion transsylvanus (Mollusca, Pulmonata, Arionidae): rediscovery of a cryptic species. Zoologica Scripta 39(4), 343-62. doi:10.1111/j.1463-6409.2010.00425.x.

External linksEdit