What do I need to put Schneider 6-66 on 6008s?

[starfilms]

I got this Beaulieu-Optivaron Schneider-Kreuznach 6-66mm zoom lens from a 4008 MKII for a good price. I was thinking of putting it onto my Beaulieu 6008s since it's a C-Mount and made by Beaulieu but the lens will not fit the camera. Obviously, I'm missing something. What could that be?

Thanks!