  The fission fragment mass distributions have been measured in the reactions
16O + 184W and 19F+ 181Ta populating the same compound nucleus 200Pb? at
similar excitation energies. It is found that the widths of the mass
distribution increases monotonically with excitation energy, indicating the
absence of quasi-fission for both reactions. This is contrary to two recent
claims of the presence of quasi-fission in the above mentioned reactions.
