| Nominal Species (n = 18) | Present allocation (n = 18) | Ref. |
|---|---|---|
| Thyonidium alexandri Fisher, 1907 | Thyonidium alexandri | 473 |
| Ohshimella castanea Cherbonnier, 1980 | Ohshimella castanea | 3477 |
| Clarkiella deichmannae O'Loughlin, 2009 | Clarkiella deichmannae | 87422 |
| Euthyonidiella dentata Cherbonnier, 1961 | Euthyonidiella dentata | 479 |
| Ohshimella ehrenbergii Selenka, 1867 | Ohshimella ehrenbergii | 485 |
| Eupentacta fraudatrix Djakanov & Baranova, 1958 | Eupentacta fraudatrix | 356 |
| Pseudothyone furnesti Cherbonnier, 1969 | Pseudothyone furnesti | 356 |
| Neothyone gibber Selenka, 1867 | Neothyone gibber | 485 |
| Neothyone gibbosa Deichmann, 1941 | Neothyone gibbosa | 3477 |
| Thyonidium hawaiiense Fisher, 1907 | Thyonidium hawaiiense | 473 |
| Pentathyone kojinensis Won & Rho, 1998 | Pentathyone kojinensis | 485 |
| Thyonidium kurilensis Levin, 1984 | Thyonidium kurilensis | 523 |
| Euthyonidiella kyushuensis Heding & Panning, 1954 | Euthyonidiella kyushuensis | 485 |
| Thyonidium molle Selenka, 1867 | Thyonidium molle | 485 |
| Ohshimella nhatrangensis Levin & Dao Tan Ho, 1989 | Ohshimella nhatrangensis | 81020 |
| Havelockia nietae Prata, Manso & Christoffersen, 2020 | Havelockia nietae | 3477 |
| Eupentacta pseudoquinquesemita Deichmann, 1938 | Eupentacta pseudoquinquesemita | 19 |
| Pseudothyone sculponea Cherbonnier, 1958 | Pseudothyone sculponea | 356 |