Assyria - Anchor Line 1873

On Ancestry, I found that the Assyria arrived in New York on May 13, 1873. I don't find it listed on this site that the Assyria sailed then and I'm trying to find out what the feeder ship from Kristiania to Hull might have been. From what I've read, it should be a feeder ship from the Wilson line, but which one. Any assistance would be wonderful. Thanks, Wanda