Hi,
I just bought one from my LFS yesterday. My LFS sells it as "occellaris anemone". They prove that they are actually what the occellaris clown lives in because there are many anemones in the tank and the clownfish only go in those ones. I know they also go in Radianthus anemones but they prefer this one. Sorry, I don't have the scientific name, I will try to find out for you. I can tell you it is pink/purple coloured with yellow tips, and cost about 3 times as much as a Radianthus anemone. I bought 2 A. percula as well and they love it!
Tom