The flagellum which consists of lateral hair-like projections along its length is called as Tinsel flagellum. These hair-like projections are called fimmers or mastigonemes. These filaments change the flagellar action so that a wave coming down the filament towards the tip propels the cell instead of pushing it.
The naked flagellum is referred to as Whiplash flagellum. It consists of two parts-a long lower portion and a short-flexible upper portion.
