Their other name, Mola mola, is -- it sounds Hawaiian, but it's actually Latin for millstone, and that's attributable to their roundish, very bizarre, cut-off shape.
別名モラモラは ハワイ語のように聞こえますが 由来は石臼を意味するラテン語です 丸くて パツンと切られたような風変わりな形で