| Species Name | Country / Port | Port / Vicinity? | Detection Year |
|---|---|---|---|
| Mytilopsis leucophaeata | Finland / Turku | port | 2020 |
| Mytilopsis leucophaeata | Finland / Naantali | port | 2020 |
| Mytilopsis leucophaeata | Finland / Helsinki | port | 2020 |
| Mytilopsis leucophaeata | Finland / Skoldvik | port | 2020 |