| Species | Recipient region | Date of the first record | |
|---|
| Pileolaria berkeleyana | United Kingdom (Britain) / English Channel | 1974 |  |
| Pileolaria berkeleyana | United Kingdom (Britain) / Celtic seas / Channel Islands | 1982 | |
| Pileolaria berkeleyana | Spain / Canary Islands | To 1980 | |
| Pileolaria berkeleyana | Portugal / Madeira | To 1980 | |
| Pileolaria berkeleyana | Germany / North Sea | 2013 | |
| Pileolaria berkeleyana | France / English Channel | 2007 | |
| Pileolaria berkeleyana | France / Western Mediterranean | 1977 | |
| Pileolaria berkeleyana | France / Biscay Gulf | 2007 | |
| Pileolaria berkeleyana | Netherlands | To 2010 | |
| Pileolaria berkeleyana | Italy / Western Mediterranean | To 1995 | |
| Pileolaria berkeleyana | Italy / Central Mediterranean | 2008 | |
