This family has no subfamilies.[3] The family name Ferussaciidae is from 1883 and therefore it is more recent than the family name Cecilioididae Mörch, 1864. However, the latter has been declared as a nomen oblitum because it had not been used for over 100 years. Ferussaciidae has been declared a nomen protectum.[3]
Distribution
The distribution of Ferussaciidae includes Africa to Europe and the Near East, tropical Americas, Hawaii and tropical Asia.[1]
Barker G. M.: Gastropods on Land: Phylogeny, Diversity and Adaptive Morphology. in Barker G. M. (ed.): The biology of terrestrial molluscs. CABI Publishing, Oxon, UK, 2001, ISBN0-85199-318-4. 1-146, cited pages: 139 and 142.