| Species | Recipient region | Date of the first record | |
|---|
| Watersipora subtorquata | Ireland | 2011 |  |
| Watersipora subtorquata | United Kingdom (Britain) / English Channel | 2007 | |
| Watersipora subtorquata | Portugal / Madeira | 2006 | |
| Watersipora subtorquata | Italy / Western Mediterranean | 1960 | |
| Watersipora subtorquata | Portugal / Iberian Coastal | To 2004 | |
| Watersipora subtorquata | Germany / North Sea | 2012 | |
| Watersipora subtorquata | Spain / Iberian Coastal | To 2016 | |
| Watersipora subtorquata | Portugal / Azores | To 1888 | |
| Watersipora subtorquata | France / Biscay Gulf | 1983 | |
| Watersipora subtorquata | Australia / Bass strait | 1973 - 1976 | |
