This list of species is provisional pending further taxonomic work and review by expedition members and associates.
Mechanisms given in parentheses indicate less likely mechanisms.
1949 OA, SF Amphipoda Eochelidium sp. Many of the species on this list have not yet been identified to species. Although we do not believe that they are native to Puget Sound, we are unable to further identify them at this time, and thus their origin cannot be established. It is likely that some of these species have never been formally described and it will therefore be difficult to ever localize their original geographic range. This list is a modification of column D on pp.