| Nominal Species (n = 23) | Present allocation (n = 22) | Ref. |
|---|---|---|
| Clypeaster annandalei Koehler, 1922 | Clypeaster annandalei | 81020 |
| Clypeaster brigitteae Mooi & van Noordenburg, 2021 | Clypeaster brigitteae | 3477 |
| Clypeaster chesheri Serafy, 1970 | Clypeaster chesheri | 19 |
| Clypeaster cyclopilus Clark, 1941 | Clypeaster cyclopilus | 19 |
| Clypeaster euclastus Clark, 1941 | Clypeaster euclastus | 19 |
| Clypeaster europacificus Clark | Clypeaster europacificus | 19 |
| Clypeaster fervens Koehler, 1922 | Clypeaster fervens | 81020 |
| Clypeaster japonicus Döderlein, 1885 | Clypeaster japonicus | 3477 |
| Clypeaster miniaceus Clark, 1925 | Clypeaster miniaceus | 81020 |
| Clypeaster ochrus Clark, 1914 | Clypeaster ochrus | 3477 |
| Clypeaster oshimensis Ikeda, 1935 | Clypeaster oshimensis | 3477 |
| Clypeaster pateriformis Mortensen, 1948 | Clypeaster pateriformis | 3477 |
| Echinus placenta Linnaeus, 1758 | Arachnoides placenta | 85000 |
| Clypeaster prostratus Ravenel, 1848 | Clypeaster prostratus | 19 |
| Clypeaster rarispinus de Meijere, 1902 | Clypeaster rarispinus | 81020 |
| Echinus rosaceus Linnaeus, 1758 | Clypeaster rosaceus | 75097 |
| Clypeaster speciosus Verrill, 1870 | Clypeaster speciosus | 3477 |
| Echinanthus subdepressus Gray, 1825 | Clypeaster subdepressus | 75097 |
| Clypeaster telurus Clark, 1914 | Clypeaster telurus | 3477 |
| Echinanthus testudinarius Agassiz, 1872 | Clypeaster australasiae | 3477 |
| Plesianthus testudinarius Gray, 1851 | Clypeaster australasiae | 89223 |
| Clypeaster virescens Döderlein, 1885 | Clypeaster virescens | 3477 |
| Arachnoides zelandiae Gray, 1855 | Fellaster zelandiae | 88950 |