螵蛸

螵蛸	piāo xiāo	ootheca, i.e. eggs in their capsule, of a praying mantis (used in TCM) / cuttlebone (abbr. for 海螵蛸)
螵	piāo	used in 螵蛸
蛸	shāo	octopus / used in 蟏蛸 and 肖蛸
蛸	xiāo	used in 螵蛸