| Nominal Species (n = 9) | Present allocation (n = 6) | Ref. |
|---|---|---|
| Pholadomya adelaidis Hedley, 1916 | Cetoconcha spinosula | 3477 |
| Poromya adelaidis (Hedley, 1916) | Cetoconcha spinosula | 3477 |
| Pholadomya antarctica Hedley, 1916 | Cetoconcha spinosula | 3477 |
| Cetoconcha atypha Verrill & Bush, 1898 | Cetoconcha atypha | 19 |
| Cetoconcha braziliensis Allen & Morgan, 1981 | Cetoconcha braziliensis | 3477 |
| Cetoconcha galatheae Knudsen, 1970 | Cetoconcha galatheae | 8121 |
| Silenia sarsii Smith, 1885 | Cetoconcha sarsii | 3477 |
| Cetoconcha smithii Dall, 1908 | Cetoconcha smithii | 19 |
| Poromya spinosula Thiele, 1912 | Cetoconcha spinosula | 3477 |