| # | Species | Year | Period | From - To | Reason | Established in the wild | Ref. no. |
| 1 | Gelliodes fibrosa | 1999 | 1975-present | Originally form the Philippines, introduced to Hawaii on hull of a floating dry-dock. - Transported to Guam on the hull of the same dry-dock. | accidental with ships | unknown | 003248 |