| Species | Recipient region | Date of the first record | |
|---|
| Botryllus schlosseri | Greece / Eastern Mediterranean | 1955 |  |
| Botryllus schlosseri | Canada / Northern Newfoundland | 2007 | |
| Botryllus schlosseri | Canada / Northern Gulf of St. Lawrence | 1975 | |
| Botryllus schlosseri | Canada / Southern Newfoundland and Southern Grand Banks | 1940 - 1949 | |
| Botryllus schlosseri | Canada / Southern Gulf of St. Lawrence and Eastern Scotian Shelf | 2001 | |
| Botryllus schlosseri | Canada / South-eastern Scotian Shelf | 1950 - 1959 | |
| Botryllus schlosseri | Germany / North Sea | To 2016 | |
| Botryllus schlosseri | Italy / Central Mediterranean | To 2011 | |
| Botryllus schlosseri | Italy / Adriatic Sea | To 2004 | |
| Botryllus schlosseri | Canada / Bay of Fundy | 1970 - 1979 | |
| Botryllus schlosseri | Spain / Canary Islands | To 2003 | |
| Botryllus schlosseri | Portugal / Azores | To 1971 | |
| Botryllus schlosseri | Portugal / Iberian Coastal | To 1970 | |
| Botryllus schlosseri | Germany / Baltic Sea | To 2015 | |
| Botryllus schlosseri | Portugal / Madeira | To 2006 | |
| Botryllus schlosseri | United Kingdom (Britain) / North Sea / Orkney Islands | 1995 | |
| Botryllus schlosseri | Iceland | 2011 | |
| Botryllus schlosseri | Italy / Western Mediterranean | To 2005 | |
| Botryllus schlosseri | Australia / Bass strait | 1977 | |
| Botryllus schlosseri | Romania | 2018 | |
