Aquatic animals that live in the substrate of a body of water, especially in a soft sea bottom.
Aquatic animals that live in the substrate of a body of water, especially in a soft sea bottom.
底内动物生活在水体底部的水生动物，尤指栖于松软海底的水生动物
Aquatic animals that live in the substrate of a body of water, especially in a soft sea bottom.
底内动物生活在水体底部的水生动物，尤指栖于松软海底的水生动物