This is a Montipora but we are not sure about the species. Dane believes this was collected from the wild (but it looks grafted) over 2 years ago and we only have 1 frag available at this time.
http://www.aquariumspecialty.com/asl-grafted-montipora.html
http://www.aquariumspecialty.com/asl-grafted-montipora.html