1.minute floating marine tunicate having a transparent body with an opening at each end.
身体透明、端有孔并且有背囊浮游海洋动物。
2.The name tunicate derives from a secreted protective covering (the tunic) containing cellulose.
被囊动物名称来自它们分泌含纤维素保护性外罩(被囊)。
3.A tunicate (Halocynthia pyriformis) having a yellow or orange-red color and a sandpapery surface, found in shallow water along the northern Atlantic coast of North America.