Taxonomy
The basic nomenclature and taxonomy of this large and complex family of land snails has been the subject of many modifications, and the list of genera given here is applicable only when the family is broadly interpreted. Many of these snail genera have been placed by various authors in more restrictively defined families, such as: Cepolidae, Epiphragmophoridae, Humboldtianidae, Monadeniidae, and Xanthonychidae.
Subfamilies in the family Helminthoglyptidae include (according taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):
Subfamily Helminthoglyptinae Pilsbry, 1939
- tribe Helminthoglyptini Pilsbry, 1939
- subtribe Helminthoglyptina Pilsbry, 1939: the mucus glands lie adjacent to the vagina or to the sheath of the dart apparatus; the ducts of the glands are provided with bulbous reservoirs.
- subtribe Micrariontina Schileyko, 1991: the mucus glands lie adjacent to the dart sac; in part the dart apparatus is missing.
- tribe Sonorelicini Roth, 1996
Subfamily Sonorellinae Pilsbry, 1939: the diverticulum and the dart apparatus are absent.
Read more about this topic: Helminthoglyptidae