Anyone know this type of Acan Echinata??

[mfbs1998]

Picked up this acan echinata from my lfs for $20 (it was a buy one get one free so i couldnt resist lol also got a seasons greeting montipora). Forgot to ask the name but does anyone know what is the name of it?? Sorry if picture is too blue. Hard to take pictures with LEDs

 

[JaimeAdams]

probably doesn't have a "trade name"