- Fossaria modicella (Say, 1825) accepted as Galba modicella (Say, 1825)
- Galba modicella (Say, 1825)
- Ladislavella arctica (I. Lea, 1864)
- Ladislavella catascopium (Say, 1817)
- Lymnaea arctica I. Lea, 1864 accepted as Ladislavella arctica (I. Lea, 1864)
- Stagnicola arctica (I. Lea, 1864) accepted as Ladislavella arctica (I. Lea, 1864)
- Stagnicola catascopium (Say, 1817) accepted as Ladislavella catascopium (Say, 1817)