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Helix pomatia 89a.jpg
Helix pomatia, the Roman snail
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Superorder: Eupulmonata
Order: Stylommatophora
Infraorder: Helicoidei
Superfamily: Helicoidea
Rafinesque, 1815

See text.

Helicoidea is a taxonomic superfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora.


2005 taxonomy[edit]

There are 19 families within the superfamily Helicoidea according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005.[1][2]

According to H. Nordsieck[3] the family Xanthonychidae (sensu Hausdorf & Bouchet) is probably polyphyletic (contains several different lineages) and therefore should be divided into several families.

2012 taxonomy[edit]

Thompson & Naranjo-García (2012) described a new family Echinichidae and placed it to the superfamily Xanthonychoidea.[4] Therefore, the family Xanthonychidae was moved from Helicoidea to Xanthonychoidea.

2015 taxonomy[edit]

Razkin et al. (2015)[5] reorganized classification into monophyletic taxa according to the molecular phylogeny. This study is focus on Western Palaearctic species. The Hygromiidae s.l. family was divided into three families, Canariellidae, Geomitridae and Hygromiidae. Moreover, the family Cochlicellidae was including within the Geomitridae family as a tribe (Cochlicellini).

The classification proposed for Western Palaearctic Helicoidea is as follows:


  1. ^ Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
  2. ^ Poppe G. T. & Tagaro S. P. (2006). "The new classification of Gastropods according to Bouchet & Rocroi, 2005". Visaya, février 2006: 10 pp. PDF Archived 27 September 2007 at the Wayback Machine.
  3. ^ Higher classification of the Helicoidea and the molecular analyses of their phylogeny (by Hartmut Nordsieck) Archived 29 November 2015 at the Wayback Machine
  4. ^ Thompson F. G. & Naranjo-García E. (2012). "Echinichidae, a new family of dart-bearing helicoid slugs from Mexico, with the description of a new genus and three new species (Gastropoda: Pulmonata: Xanthonychoidea)". Archiv für Molluskenkunde 141(2): 197-208. doi:10.1127/arch.moll/1869-0963/141/197-208. preview.
  5. ^ Razkin O., Gómez-Moliner B. J., Prieto C. E., Martínez-Ortí A., Arrébola J. R., Chueca L. J. & Madeira M. J. (2015). "Molecular phylogeny of the western Palearctic Helicoidea (Gastropoda, Stylommatophora)". Molecular Phylogenetics and Evolution 83: 99–117. doi:10.1016/j.ympev.2014.11.014.