| Taxonomic Group | Name | Year | |
|---|---|---|---|
| Crustaceans-Barnacles | Amphibalanus improvisus | 1868 | |
| Annelids-Polychaetes | Boccardiella ligerica | 1960 | |
| Crustaceans-Cladocerans | Cercopagis pengoi* | 1999 | |
| Bryozoans | Conopeum chesapeakensis | 2024 | |
| Cnidarians-Hydrozoans | Cordylophora caspia | 1872 | |
| Crustaceans-Crabs | Eriocheir sinensis | 1934 | |
| Crustaceans-Amphipods | Gammarus tigrinus | 2003 | |
| Crustaceans-Mysids | Hemimysis anomala* | 1992 | |
| Annelids-Polychaetes | Laonome cf. calida | 2015 | |
| Annelids-Polychaetes | Marenzelleria neglecta | 2008 | |
| Annelids-Polychaetes | Marenzelleria viridis | 1990 | |
| Mollusks-Bivalves | Mya arenaria | 1900 | |
| Mollusks-Bivalves | Mytilopsis leucophaeata | 2011 | |
| Fishes | Neogobius melanostomus* | 2004 | |
| Crustaceans-Shrimp | Palaemon elegans | 2011 | |
| Mollusks-Gastropods | Potamopyrgus antipodarum | 1926 | |
| Crustaceans-Crabs | Rhithropanopeus harrisii | 2009 | |
| Crustaceans-Tanaids | Sinelobus cf. stanfordi | None | |
| Bryozoans | Victorella pavida | 1927 |