Some of land shellfishes might also have been introduced. It was exploited from the "Murex trunculus" and "Murex brandaris" shellfishes, known as Tyrian purple. Found near them were stone and bone instruments, beads, shell-works from shellfishes, and animal teeth. In "Saang", teams had to open and skewer shellfishes. The lipophilic toxins accumulate in shellfishes and causes diarrhea and shellfish poisoning to consumers.