Camp Knife: Performs the civilized chores and functions of chosen/equipped wilderness living. E.g. Chris Reeve Shadow IV, BK&T Campanion and the like. Leave the chopping to the hatchet and axe that one would have in "camp."
Survival Knife: Performs the less than civilized chores and functions of involuntary and often ill-equipped wilderness living (survival), including self defense/CQ combat. Chris Reeve Project 1 (or 2), Fallkniven A-1 and the like. Have to chop with the knife because you don't have a hatchet or axe. Typically a "camping" knife on steroids, larger, heavier and pronounced blade heavy balance.
Hunting Knife: Field dressing and quartering of game species. Chris Reeve Skinner, Puma White Hunter (and WH-II), Buck skinner, Dozier, Randall, etc, etc. Should have point designed for skinning, some belly, easily sharpened, controllable balance, "grippy" handle. Balance should not be blade heavy for controlled dressing, skinning and caping of game. Folders can also serve well here, as evidenced by such examples as the Wegner, Buck 110, Puma, etc.
Footnote: I do not suggest that the examples I have chosen are the absolute best for each catagory, but are examples I am personally familiar with that have succesfully filled the bill for my description of the three tasks.
Overlaps: Yes, there are overlaps, a "Survival Knife" could serve as a large/heavy "camp" knive or, conversely, a good stout camp knife could be a survival knife of called upon. Pen knives and Bowies have field dressed, skinned and cut up game animals of all sizes. For skinning however, the point shape needs to be somewhat specialized to avoid snagging the hide.
[This message has been edited by Nimrod (edited 08-20-2000).]