Are you sure that is the name of the ship. If you found the manifest at Ancestry.com, they seem to have mistranscibed most of the manifests for the SS Germania as Germanic.

You might want to look at the first page of the manifest where the ship's name is written out. There are over 2,000 occasions in 1864 alone of Ancestry showing the name GERMANIC in its purported record, while the actual manifest shows GERMANIA.