I know of four types of acan-bowerbanki,echinata, ishigakiensis and lordhowensis.There could be more,not sure.You definitely have acan lords,as far as the nickname,your guess is good as mine.
They must be sought after because the guy that sells them said the price would make me fall over :shock:, and his prices are among the best in my area. He also carries all aquacultured / captive bred frags, which I fully support.
At my LFS, A Reef Creation in Buffalo NY, they kind of specialize in Acans and other high end corals. For a non-rainbow softball sized colony they range from 125-300 depending on size and color. For a Rainbow colony the size of a frag-disk you are looking at those prices or more. Just to give you an idea.