Alien Parasite from Star Trek TNG Episode "Conspiracy"

Hey, remember that [iconic episode](http://memory-alpha.wikia.com/wiki/Conspiracy_(episode))? You know, the one where we find out that phasers have an "explode" setting? (Take that, Remmick!) This is one of those parasitic aliens and one of the nerdiest things I can think of.

*It won't like your Science Officer. It does like you!*