Since the earthquake and tsunami hit Aceh. The pempeng is lost in the Lhokseumawe coastal plains. "Pempeng" title in the Aceh language. I see in Wikipedia the scientific name Placenta Placuna.
Window Oysters touted in the Indonesian language, this seafood is very high protein. Now the Pempeng has started to be found again, since 10 years disappeared along with the tsunami waves. Tonight with a younger brother, we are indeed Pempeng with coconut shell embers. The taste of meat tastes good and the shell can be for decorative lights and others.
Here's the picture.
Thank @aborjin