Addendum to Pentapods with Mobility 2
  In a foregoing publication the authors studied pentapods with mobility 2, where neither all platform anchor points nor all base anchor points are located on a line. It turned out that the given classification is incomplete. This addendum is devoted to the discussion of the missing cases resulting in additional solutions already known to Duporcq. 
Georg Nawratil and Josef Schicho
cs.RO math.AG