Public domain: Introduction events' accounts (50 / 5528)
| Species |
Recipient region |
Date of the first record |
|
| Polycera hedgpethi | Italy / Western Mediterranean | 1986 |  |
| Polycera hedgpethi | Spain / Iberian Coastal | 2002 | |
| Polycerella emertoni | Greece / Central Mediterranean | 1995 | |
| Polycerella emertoni | Italy / Western Mediterranean | 1964 | |
| Polycirrus twisti | Greece / Central Mediterranean | 2010 | |
| Polycirrus twisti | Greece / Eastern Mediterranean | 1983 | |
| Polyclinum aurantium | Portugal / Azores | To 1971 | |
| Polyclinum constellatum | Italy / Central Mediterranean | 2018 | |
| Polydora aggregata | Denmark / Baltic Sea | 2017 | |
| Polydora ciliata | France / Celtic seas | 1921 | |
| Polydora ciliata | France / English Channel | 1921 | |
| Polydora colonia | France / Biscay Gulf | 2021 | |
| Polydora colonia | Italy / Adriatic Sea | 2009 | |
| Polydora cornuta | Bulgaria | 1962 | |
| Polydora cornuta | Denmark / Baltic Sea | 1943 | |
| Polydora cornuta | Denmark / North Sea | 1941 | |
| Polydora cornuta | Greece / Eastern Mediterranean | 2008 | |
| Polydora cornuta | Italy / Adriatic Sea | 1990 - 1999 | |
| Polydora cornuta | Portugal / Iberian Coastal | To 2017 | |
| Polydora cornuta | Romania | 1970 - 1979 | |
| Polydora cornuta | Russia / Black Sea | 2009 | |
| Polydora cornuta | Ukraine / Black Sea | From 1962 | |
| Polydora hoplura | Belgium | To 1962 | |
| Polydora hoplura | France / English Channel | 1894 - 1921 | |
| Polydora hoplura | France / North Sea | To 1921 | |
| Polydora hoplura | Netherlands | To 1949 | |
| Polydora hoplura | New Zealand / New Zealand Shelf / North Island | To 1975 | |
| Polydora hoplura | New Zealand / New Zealand Shelf / South Island | To 1975 | |
| Polydora onagawaensis | France / English Channel | 2018 | |
| Polydora onagawaensis | Sweden / North Sea | To 2023 | |
| Polydora triglanda | France / Biscay Gulf | To 2017 | |
| Polydora triglanda | Spain / Iberian Coastal | To 2016 | |
| Polydora websteri | France / English Channel | 2018 | |
| Polydora websteri | Germany / North Sea | 2014 | |
| Polydora websteri | Netherlands | 2017 | |
| Polydora websteri | Romania | 1901 - 2000 | |
| Polydora websteri | Sweden / North Sea | 2020 | |
| Polylabris cf. mamaevi | Israel | 1971 | |
| Polyopes lancifolius | France / Biscay Gulf | 2008 | |
| Polyopes lancifolius | France / English Channel | 2011 | |
| Polysiphonia atlantica | France / Western Mediterranean | 1984 | |
| Polysiphonia atlantica | Greece / Central Mediterranean | 2001 | |
| Polysiphonia atlantica | Greece / Eastern Mediterranean | 1988 | |
| Polysiphonia atlantica | Israel | 2016 | |
| Polysiphonia morrowii | France / Biscay Gulf | To 2011 | |
| Polysiphonia morrowii | France / Celtic seas | To 2012 | |
| Polysiphonia morrowii | France / English Channel | 1970 - 1979 | |
| Polysiphonia morrowii | France / Western Mediterranean | 1997 | |
| Polysiphonia morrowii | Italy / Adriatic Sea | 1999 | |
| Polysiphonia morrowii | Italy / Central Mediterranean | 2012 | |
