Nope, only the fact that natural attacks are normally hard to get, not given out like candy. Some 'brew breaks that by making natural attacks easy, but the class itself imposes a cap (take ozodrin as an example).The evolutionist should probably follow a similar example (though it's already limited by amount of body parts and the fact the not-body dependent ones have limits, so for a standard race their is a limit).
That's how it already works, unless you take a couple feats to alleviate it (which, let's be honest, anyone going for this many natural attacks is going to take at least those two, maybe a couple add-ons).