| Species | Recipient region | Date of the first record | |
|---|
| Caprella scaura | Greece / Eastern Mediterranean | 2012 |  |
| Caprella scaura | Greece / Central Mediterranean | 2002 | |
| Caprella scaura | Italy / Adriatic Sea | 1994 | |
| Caprella scaura | Italy / Western Mediterranean | 2003 - 2004 | |
| Caprella scaura | Italy / Central Mediterranean | 1989 - 1990 | |
| Caprella scaura | Spain / Canary Islands | 2009 | |
| Caprella scaura | Spain / Iberian Coastal | To 2011 | |
| Caprella scaura | Portugal / Iberian Coastal | To 1985 | |
| Caprella scaura | Portugal / Madeira | To 2014 | |
| Caprella scaura | Portugal / Azores | 2015 | |
| Caprella scaura | France / Western Mediterranean | 2014 | |
| Caprella scaura | Netherlands | To 2016 | |
| Caprella scaura | Australia / Bass strait | 1971 | |
