Bergen to Liverpool

My grandfather left Bergen Harbor 3-19-1885 Cunard line. I think he would have made the Aurania 1, leaving Liverpoool 3-21-1885 and arriving New York 3-29-1885. I just want to know what ship he took from Bergen to Liverpool (or Hull). Is there a way to find out? He was Arent Andreassen Fosse from Hammer, age 18. I know he got here and I have the data for his emigration at Bergen. The ISTG does not have the Aurania done yet as far as I can tell. Any help will be appreciated. Elaine