the internal shell of a cuttlefish, serving as an abbreviation for the TCM ingredient 海蜁蚘 hǎi​xuán​huí

海蜁蚘具有制酸止痛的功效〒

the egg case or capsule of a praying mantis, primarily used in Traditional Chinese Medicine

桑螵蛸是一种常用于补肾的中药材。