2005 taxonomy The family Spiraxidae is classified within the informal group
Sigmurethra, itself belonging to the
clade Stylommatophora within the clade
Eupulmonata (according to the
taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). redefined subfamilies in the Spiraxidae, moving Euglandininae and Streptostylinae to become subfamilies of Spiraxidae. According to their work, there are three subfamilies within the Spiraxidae: • Spiraxinae H. B. Baker, 1939 - including
Micromena • Euglandininae H. B. Baker, 1941 • Streptostylinae H. B. Baker, 1941 Apparently this system of classification is not universally accepted, as
Fauna Europaea uses different systematics for the subfamily Euglandininae, still placing it within the family Oleacinidae. ==Genera ==