| Nominal Species (n = 7) | Present allocation (n = 7) | Ref. |
|---|---|---|
| Hornera americana d'Orbigny, 1847 | Hornera americana | 1202 |
| Hornera antarctica Waters, 1904 | Hornera antarctica | 1202 |
| Hornera currieae Batson, Tamberg, Gordon, Negrini & Smith, 2021 | Hornera currieae | 3477 |
| Hornera falklandica Borg, 1944 | Hornera falklandica | 1202 |
| Hornera frondiculata Lamouroux, 1821 | Hornera frondiculata | 19 |
| Hornera smitti Borg, 1944 | Hornera smitti | 3477 |
| Hornera spinigera Kirkpatrick, 1888 | Spinihornera spinigera | 3477 |