| Species | Recipient region | Date of the first record | |
|---|
| Pseudopolydora paucibranchiata | Greece / Eastern Mediterranean | 2005 |  |
| Pseudopolydora paucibranchiata | Spain / Iberian Coastal | To 2011 | |
| Pseudopolydora paucibranchiata | Netherlands | To 2015 | |
| Pseudopolydora paucibranchiata | United Kingdom (Britain) / Celtic seas | To 1960 | |
| Pseudopolydora paucibranchiata | Norway / North Sea | To 1979 | |
| Pseudopolydora paucibranchiata | Norway / Norwegian Sea | To 1991 | |
| Pseudopolydora paucibranchiata | Faroe Islands | 1987 | |
| Pseudopolydora paucibranchiata | Portugal / Iberian Coastal | 2005 | |
| Pseudopolydora paucibranchiata | Italy / Western Mediterranean | 1977 | |
| Pseudopolydora paucibranchiata | Australia / Bass strait | 1978 | |
