TRANSLATION: promoted giant triton
HABITAT: migrates from mountains, to valleys, and finally to seas
APPEARANCE: Like many animals, giant tritons (Charonia tritonis)—a kind of sea snail similar to a conch—can turn into yōkai after living for a very long time. When a giant triton reaches an age of several thousand years old, it turns into a draconic creature called a shussebora.
BEHAVIOR: Long ago, it was believed that giant tritons lived deep in the mountains. They spend their lives buried under the earth. They grow larger and larger, until after three thousand years they descend from the mountains into the valleys during landslides. They spend three thousand more years living near human villages, until they finally burrow into the sea. After three thousand more years underwater, they transform into a mizuchi—a kind of sea dragon.
INTERACTIONS: Because they spend their years buried in the earth or deep in the sea, shussebora very rarely ever interact with people. However, the caves they leave behind during their migrations serve as a testament to their existence. All over Japan, after landslides people have discovered large caves which shussebora were thought to have lived in. These discoveries were even documented in newspapers during the Meiji period.
The flesh of a shussebora was said to bring very long life to anyone who eats it. However, as there is no documented evidence of this, and nobody who has actually eaten a shussebora has come forth, this is thought to be just rumor.
ORIGIN: Because of the ambiguous nature of these creatures—the rumors about their life-giving meat, and the lack of any evidence other the caves they allegedly lived in—the phrase “hora wo fuku” (“to blow a conch shell”), meaning “to brag,” is said to have originated from this yōkai.
TRANSLATION: turban snail demon
HABITAT: oceans, seas, and coastal areas
APPEARANCE: Sazae oni are monstrous turban snails which haunt the seas. They appear on moonlit nights, dancing on the water’s surface like exotic dancers or dragons.
BEHAVIOR: Sazae oni are monstrous and deadly creatures, fully deserving the “demon” moniker. They are powerful shape-changers, often taking the form of beautiful women in order to lure seamen into trouble. At sea, they pretend to be drowning victims and cry out to be rescued, only to turn on their would-be saviors once brought aboard. When encountered on land, sazae oni often travel disguised as lone, wandering women who stop at inns and eat the innkeepers during the night.
ORIGIN: Sazae oni can be born a few different ways. According to ancient lore, when animals reach a certain age, they gain the ability to transform. It was thought that when a turban snail reaches 30 years old, it would turn into a yokai with all kinds of magical powers. Another way that sazae oni come to be is when a lustful young woman is thrown into the sea. Such a woman would transform into a sea snail, and if she happens to live a very long time she will transform into a sazae oni as well.
LEGENDS: On the Kii penninsula, legend tells of a band of pirates who spotted a woman drowning in the water one night. They rescued her, though not out of the goodness in their hearts; they had more nefarious reasons to wanting a woman aboard their ship. That night every pirate on the ship had their way with her. Unfortunately for the pirates, the woman was actually a shape-changed sazae oni, and during the night, she visited each pirate on the boat one by one and bit off their testicles. At the end of the night she had all of their testicles, and demanded treasure for their return. The desperate pirates traded away all of their ill-gotten gold to the sazae oni to buy back their “golden balls,” as they are called in Japanese.