1965 Glastron Gulfcruiser and Sportsman

1965 Gulfcruiser V-195 and Sportsman V-191
and mysterious V-175 Seaflite Seville Cruiser (below)

The image below is the same page from a Glastron Co. '65 catalog. The weird part is the V-175 at the bottom. It does not appear in my '65 catalog. Instead is the Sportsman V-191! Since it appears again in '66 it must have been a mid-year introduction in '65.