# | Species | Year | Period | From - To | Reason | Established in the wild | Ref. no. |
1 | Choromytilus chorus | 1965 | 1950-1974 | Chile - Wales | other reasons | Unknown | 007794 |
2 | Crassostrea rhizophorae | 1980 | 1975-present | Brazil - Wales | other reasons | Unknown | 007794 |
3 | Ostrea chilensis | 1962 | 1950-1974 | Chile - Wales | other reasons | Unknown | 007794 |
4 | Ostrea chilensis | 1982 | 1975-present | Chile - France | other reasons | Unknown | 007794 |
5 | Rhithropanopeus harrisii | 1996 | 19th century | West Atlantic - Cardiff Docks. | accidental with ships | probably yes | 001314 |