Achatina spiculum W. H. Benson, 1856 accepted as
Cecilioides acicula (O. F. Müller, 1774) (original description)
Achatina veru W. H. Benson, 1856 accepted as
Cecilioides acicula (O. F. Müller, 1774) (original description)
Bulimus arenicola W. H. Benson, 1856 accepted as
Gittenedouardia arenicola (W. H. Benson, 1856) (original description)
Bulimus compressilabris W. H. Benson, 1856 accepted as
Opeas hannense (Rang, 1831) (original description)
Bulimus gemmula W. H. Benson, 1856 accepted as
Pupoides coenopictus (T. Hutton, 1834) (original description)
Cyclophorus convexiusculus var. minor W. H. Benson, 1856 accepted as
Chondrocyclus convexiusculus (L. Pfeiffer, 1855) (original description)
Helix charybdis W. H. Benson, 1856 accepted as
Cyclocystis charybdis (W. H. Benson, 1856) (original description)
Helix tollini W. H. Benson, 1856 accepted as
Trachycystis tollini (W. H. Benson, 1856) (original description)
Hydrocena noticola W. H. Benson, 1856 (original description)
Pupa acarus W. H. Benson, 1856 accepted as
Gastrocopta acarus (W. H. Benson, 1856) (original description)
Pupa layardi W. H. Benson, 1856 accepted as
Fauxulus layardi (W. H. Benson, 1856) (original description)