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Helix pomatia 89a.jpg
Helix pomatia, the Roman snail
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Superfamily: Helicoidea
Rafinesque, 1815

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.


  1. ^ Bouchet P.; Rocroi J.-P.; Frýda J.; Hausdorf B.; Ponder W.; Valdés Á. & Warén A. (2005). "Classification and nomenclator of gastropod families". Malacologia: International Journal of Malacology. 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.
  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.