What you thought clarkii is not clarkii
, it's Amphiprion tricinctus. A. tricintus has no yellow coloring on them whatsoever. It's grey and black. Clarkii, however, although majority of its body when it's adult is black, the mouth, tail and anal fins should still be yellow.
The one that you thought black percula, I don't think it is. The reason is because normally with perculas, the middle stripe is not just a vertical stripe, it's somewhat different (look at the pic given by Adrian).
I do think it's saddleback clown though, because first, it looks like it. Second, it does not go to the S. Gigantea as the other clown does (well, in the picture at least).
Search on google or whatever search engine you use about these clowns. It's really interesting, because they have so many different kinds of clownfishes out there.
Btw I like your fish's eyes. Are they really blue? I hope I don't dissapoint you about the names. If you like them, that's all that matters.
stupid_naso