Dutch ships at the Battle of Portland

I have my working list of Dutch ships at the Battle of Portland (the Three Days Battle), but I already see a potential problem. On page 69, a Captain "Willem Aryens" is mentioned in the battle, and I think that this would be a reference to Willem Ariensz Warmont, who was captain of the Rotterdam ship Gorcum (30 guns). I do not have that ship in my list.