i thought you were asking about the sexy shrimp on the alveopora.....man i am a dork!
hehehe
anywho....the cup/pagoda thing...both are relatives if not the same species.....they both belong to the same genus, Turbinaria so their care requirements are the same, tehy just ahve different frowth forms.....pagoda.....goofy looking and tall, like a chinese pagoda, cup round open and disc shaped with a concave center!
good luck
jon