| Nominal Species (n = 5) | Present allocation (n = 5) | Ref. |
|---|---|---|
| Fontigens cryptica Hubricht, 1963 | Fontigens cryptica | 19 |
| Paludestrina nickliniana Lea, 1838 | Fontigens nickliniana | 75097 |
| Fontigens orolibas Hubricht, 1957 | Fontigens orolibas | 19 |
| Fontigens tartarea Hubricht, 1963 | Fontigens tartarea | 19 |
| Fontigens turritella Hubricht, 1976 | Fontigens turritella | 19 |