Xanthonychoidea

Xanthonychoidea is a taxonomic superfamily of air-breathing land snails, land slugs and semi-slugs, terrestrial pulmonate gastropod molluscs in the clade Stylommatophora.

Xanthonychoidea
Averellia desidens shell
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia clade Euthyneura clade Panpulmonata clade Eupulmonata clade Stylommatophora informal group Sigmurethra
Superfamily:	Xanthonychoidea Strebel & Pfeffer, 1879[1]

Taxonomy

2005 taxonomy

The taxon Xanthonychoidea was not used in the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005.^[2] The family Xanthonychidae was placed within the superfamily Helicoidea.^[2]

2012 taxonomy

Thompson & Naranjo-García (2012) described a new family Echinichidae and placed it to the superfamily Xanthonychoidea.^[3]

Families within the Xanthonychoidea include:

• Echinichidae
• Xanthonychidae