[Delphinus]

I would guess Pavona of some kind (there are of course several species). Seen this kind a few times, usually just id'd as Pavona or cactus.

My WAG on this is P. cactus since it is the closest that resembles this one (I just did a search on P. cactus, P. clavus, P.decussata, P. explanulata, P. frondifera, P. praetorta, and P. varians).

To me, a "cats paw" is a Stylopora (usually S. pistillata although also seems to be others in the species, but I can't remember the names at the moment) and sometimes I've seen Pocillopora called cats paw. When I was looking at pics of Pavona's I thought P. clavus sort of resembled Stylopora but without the hot pink colour. Of course common names seem to be a open game so who knows.

Anyhow my guess is Pavona as well.