That pot decorated with a hundred-pace snakede sign is a father pot; those with carved relief, wavy lines, or carving on the back side all mark different ranks; one with a mother's nipple is a mother pot; one with both a snake and a nipple is called the darkness and light (yin-yang) pot.
而壺有百步蛇紋的是公壺，浮雕式卷曲、彎曲、陰刻都有不同身分；而有母親般乳釘的為母壺；蛇和母釘並陳叫陰陽壺，是陶壺中最最尊貴者，非得大頭目才可擁有。