There is no difference between the two. The conch octopus is the sea snail octopus.

Conch octopus refers to the cuttlefish bone, which is the inner shell of the needleless cuttlefish or golden cuttlefish of the family Blackfish. Used in traditional Chinese medicine as a hemostatic agent. It has the functions of antacid, pain relief, hemostasis, bone setting, bone defect repair, anti-radiation, anti-tumor, anti-ulcer, etc.

Introduction to the Golden Crow:

The head is about 30 mm long, the wrists are similar in length, and the suckers on each wrist are similar in size. The outer edge of the horny ring has irregular blunt teeth. The tentacles are slightly longer than the carcass, and the tentacles are half-moon-shaped, with about 10 rows of suckers on them.

The trunk is oval, up to 20 cm long, about 1.5 times the width. When alive, the body is yellowish-brown, with fine purple-brown spots and white spots on the back of the carcass. Males have wavy stripes on the back of the carcass. There are thick spicules at the rear end of the inner shell, and there is an ink sac that stores black water near the infundibulum.

Reference for the above content:

Baidu Encyclopedia-Conch octopus