| Species | Recipient region | Date of the first record | |
|---|
| Balanus trigonus | Greece / Eastern Mediterranean | 1970 |  |
| Balanus trigonus | United Kingdom (Britain) / English Channel | 1986 | |
| Balanus trigonus | Belgium | 1997 | |
| Balanus trigonus | Italy / Western Mediterranean | To 1962 | |
| Balanus trigonus | Portugal / Azores | To 1887 | |
| Balanus trigonus | Spain / Iberian Coastal | To 2007 | |
| Balanus trigonus | Italy / Central Mediterranean | To 1927 | |
| Balanus trigonus | France / Biscay Gulf | 2007 | |
| Balanus trigonus | Portugal / Iberian Coastal | To 2013 | |
| Balanus trigonus | Italy / Adriatic Sea | 1964 | |
| Balanus trigonus | Portugal / Madeira | To 1916 | |
| Balanus trigonus | France / Celtic seas | To 2007 | |
| Balanus trigonus | France / English Channel | 2007 | |
