clade Euthyneuraclade Panpulmonata clade Eupulmonata clade Stylommatophora see text Aillyidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the informal group Sigmurethra.
[2] This family and the genus is named in honor of Swedish malacologist Adolf d'Ailly (1855-1927).
[citation needed] The family Aillyidae is classified within the informal group Sigmurethra, itself belonging to the clade Stylommatophora within the clade Eupulmonata (according to taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
[2] Prestonellidae has been tentatively placed as a synonym of Aillyidae in the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005.
[2] Herbert & Mitchell (2009)[3] have moved Prestonellidae to the superfamily Orthalicoidea.