Invasive Animals of National Concern
Please see and refer to the original text of S.I. No. 374/2024 – European Union (Invasive Alien Species) Regulations 2024S.I. No. 374 of 2024
Please also note that the species listed here may be subject to additional or other restrictions and requirements under other Statutory Instruments.
| Scientific name | Common name | Geographic scope | Entry into force |
| Didemnum spp. | A colonial sea squirt | Throughout the State | 2024 |
| Perophora japonica | A colonial sea squirt | Throughout the State | 2024 |
| All freshwater crayfish except Austropotamobius pallipes | All freshwater crayfish species except the white-clawed crayfish | Throughout the State | 2024 |
| Rana catesbeiana | American bullfrog | Throughout the State | 2024 |
| Neogale vison | American mink | Throughout the State | 2024 |
| Urosalpinx cinerea | American oyster drill | Throughout the State | 2024 |
| Ceratostoma inornatum | Asian oyster drill | Throughout the State | 2024 |
| Rapana venosa | Asian rapa whelk | Throughout the State | 2024 |
| Corbicula fluminea | Asian river clam | Throughout the State | 2024 |
| Balanus improvises | Bay barnacle | Throughout the State | 2024 |
| Rattus rattus | Black rat | Offshore islands only | 2024 |
| Lepus europaeus | Brown hare | Throughout the State | 2024 |
| Rattus norvegicus | Brown rat | Offshore islands only | 2024 |
| Branta canadensis | Canada goose | Throughout the State | 2024 |
| Cyprinus carpio(except Koi varieties) | Carp except Koi Carp | Throughout the State | 2024 |
| Eriocheir sinensis | Chinese mitten crab | Throughout the State | 2024 |
| Hydropotes inermis | Chinese water deer | Throughout the State | 2024 |
| Leuciscus cephalus | Chub | Throughout the State | 2024 |
| Bufo bufo | Common toad | Throughout the State | 2024 |
| Myocastor coypus | Coypu | Throughout the State | 2024 |
| Leuciscus leuciscus | Dace | Throughout the State | 2024 |
| Dama dama | Fallow deer | Throughout the State | 2024 |
| Vulpes vulpes | Fox | Offshore islands only | 2024 |
| Dikerogammarus villosus | Freshwater Shrimp | Offshore islands only | 2024 |
| Sciurus carolinensis | Grey squirrel | Throughout the State | 2024 |
| Anser anser | Greylag goose | Throughout the State | 2024 |
| Harmonia axyridis | Harlequin Ladybird | Throughout the State | 2024 |
| Erinaceus europaeus | Hedgehog | Offshore islands only | 2024 |
| Mustela erminea hibernicus | Irish stoat | Offshore islands only | 2024 |
| Caprella mutica | Japanese skeleton shrimp | Throughout the State | 2024 |
| Muntiacus reevesi | Muntjac deer | Throughout the State | 2024 |
| Ondatra zibethicus | Muskrat | Throughout the State | 2024 |
| Dreissena rostriformis | Quagga Mussel | Throughout the State | 2024 |
| Dreissena polymorpha | Zebra mussel | Throughout the State | 2024 |