On your second one, check E. cristata. Yours looks similar to ours and that's finally what we figured ours to be. Some of your tentacles have some extra nubs under the top one, ours only has one tentacle like that. Another thing that ours has that I haven't seen on the other Euphyllia is some of the tentacles grow in towards the mouth although the majority go away from the mouth.
It doesn't seem to be as common as the others, ours was sold under the name hammer, but as you can see, the ends are not shaped like hammers. They're found in shallower waters than other euphyllias so they can tolerate higher lighting than the others.
A good picture of one can be found in Dr. Shimek's Pocket Guide Book of Inverts, can't remember the page number off the top of my head though.
Good luck!