Japanese Folk Tale

314 The Yanagita Guide to the Japanese Folk Tale
340. What Happens If a Shark's Bones are Kicked
Shimane, Iwami: TD IX 3 30, "The shark's curse" (Fuka no noron. A
gentleman of Hamada called Iwai Tomonoshin was a famed marksman.
He killed a big shark at sea. When he saw the shark's bones
at an inn in Osaka, he kicked them in a fit of anger. They bit
deep into his foot. The poison gradually filled him and he died. A
memorial was set up for him at Hachiman shrine in Hiruko-machi,
Hamada.
341. A Shadow Swallowed by a Shark
Oita, Kitaamabe-gun: MK I 3 42, "A shadow swallowed by a shark"
(Fuka ni kage 0 nomareta hanashi). A samurai set out to sea on a
boat, but it came to a standstill. The captain told everyone to
throw his towel into the sea, and the one whose towel sank would
have to be fed to the shark. When that was done, only the towel
of the samurai sank. He was afraid he would be swallowed by the
shark. He took his bow and arrow and shot into the sea. The shark
fled, and the boat moved on. Some time later, the samurai stopped
at a certain port and heard about an unusually large shark that
had washed up onto the beach. He went to look at it and found
that the arrow stuck in its head was none other than his own. He
put his head into the shark's mouth to have a look. Although the
shark was dead, for some reason its mouth closed firmly and killed
the samurai. A shark that swallows a shadow of a man will surely
kill him.
342. The Fish-Stone of Nagasaki
Kagoshima: Kikai 175, "The jewel of the spider" (Kumo no tama). A
man looking for a treasure called a spider jewel agreed to buy a
wretched old house for 1000 ryo. The owner grew greedy. He
cleaned the house thoroughly and refused to sell it at that price.
The buyer came with nets to cover it so no spiders could escape.
He could not find a single one because the house had been cleaned.
He refused to buy the house because of that.
Further reference:
Kikaijima mukashibanashi shu 135, "The fish-stone at Keraji"
(Keraji no uoishi).
Nihon mukashibanashi shu jo 174, "The fish-stone of Nagasaki"
(Nagasaki no uoishi).