BioStor
 | Endodontoid land snails from Pacific Islands (Mollusca : Pulmonata : Sigmurethra). Part II : Families Punctidae and Charopidae, zoogeography Alan Solem Fieldiana. Zoology. Special Publications 2: 1-346 |
 | The non-marine mollusks of Quintana Roo, Mexico with the description of a new species oiDrymaeus (Pulmonata: Bulimulidae) H A Rehder (1966) Proceedings of The Biological Society of Washington 79: 273-296 |
 | Classification and Nomenclator of Gastropod Families Philippe Bouchet and Jean-Pierre Rocroi (2005) Malacologia 47(1-2): 1-397 |
 | Six new species of Paryphantopsis (Gastropoda: Pulmonata: Charopidae) from the Papuan Peninsula of New Guinea (2005) Nautilus 119: 27-42 |