| Species | Recipient region | Date of the first record | |
|---|
| Grandidierella japonica | United Kingdom (Britain) / English Channel | 1997 |  |
| Grandidierella japonica | United Kingdom (Britain) / North Sea | 2004 - 2005 | |
| Grandidierella japonica | France / Biscay Gulf | 2010 | |
| Grandidierella japonica | Sweden / Baltic Sea | 2010 | |
| Grandidierella japonica | Italy / Adriatic Sea | 2015 | |
| Grandidierella japonica | Italy / Western Mediterranean | 2013 | |
| Grandidierella japonica | Germany / Baltic Sea | 2015 | |
| Grandidierella japonica | France / Celtic seas | 2015 | |
| Grandidierella japonica | Spain / Spain | 2017 | |
| Grandidierella japonica | Belgium | 2018 | |
| Grandidierella japonica | Denmark / North Sea | 2018 | |
| Grandidierella japonica | Denmark / Baltic Sea | 2018 | |
