Picked this up at Plano Pets over the weekend while they were having an impromptu 20% off sale. No one knew what it was but it was nice and big (about 7" diameter) and only ended up costing $30 so I figured I couldn't lose. Don't have a pic of the underside but it seems to have a skeleton kinda like a chalice. I thought it was an autralomussa but I see now those seem to be much smoother with patterns that almost look painted on. This thing is a little bumpier but not fleshy at all. Any ideas?