There is no difference between the two; a sea-octopus is a cuttlebone. Sea cuttlebone refers to cuttlebone, which is the inner shell of the needleless or golden cuttlebone of the squid family. Chinese medicine is used as a hemostatic medicine. It has the functions of acid control and pain relief, hemostasis, bone grafting, bone defect repair, anti-radiation, anti-tumor, anti-ulcer and so on.

Cuttlebone, Chinese medicine. For the squid family animals needleless squid Sepiella maindroni deRoehebrune or gold squid Sepia esculenta Hoyle dry inner shell. Distributed in Zhejiang, Fujian, Shandong and other places. It has the efficacy of astringency and stopping bleeding, astringent essence and stopping bandages, suppressing acid and pain, and collecting dampness and astringing sores.