What type of Jellyfish are the Fort Point Jellies?

It is unknown at this time what species the Fort Point Jellies belong to. Google searches reveal that there have been Moon Jellyfish in Boston Harbor. Does anyone out there have any idea what kind of jellyfish these gelatinous blobs are?

What you can do:
Write your local representatives and inform them of the situation. Winter will be here soon and if these jellyfish do not move, they will meet a frozen fate. For many years the Boston Harbor has been a symbol of man destroying the environment, but now as it is being revitalized, we cannot stand by and watch these creatures helplessly perish. Saving these jellyfish would be a natural miracle and a symbol of hope for Boston Harbor's marine ecology.