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Clamshell Currency

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Scallops, conch shells and oysters accepted.

Zniw: You use shells as a local currency? How delightfully... odd.
Troodon: In this village? Yeah, the folks 'round here like them a lot, most likely because they're scarce under this mountain. Personally I don't really care what the currency is, as long as it can net me some sweet business deals. The shells are one of the easier ones to use, though.

Money hasn't always been golden coins and paper bills. History has seen many, varied currencies, and seashells were very popular choices. Some are really beautiful and look valuable enough. Entire civilizations have used seashells as their currency, in many parts of the world, including North America, Oceania, Africa and Asia. Notably, the use of cowry shells as money in China can be dated back three millennia. The Chinese character for "money" even is a pictograph of a cowrie shell!

These nacred currencies can be sometimes encountered in fiction, typically in sea-related tribes. After all, mollusks (animals that make the shells) live in water, and look very precious, and as such they can make excellent replacement for the typical golden cash.

A Subtrope to Weird Currency.


Examples:

Anime & Manga
  • The first episode of the English dub of Speed Racer features a mercenary referring to dollars as "clams", in line with the historical slang.

Comic Strips

  • The characters in B.C. use clams as money. This is a literalized pun as "clam" was a standard slang term for "dollar" before the strip was created.

Literature

  • The titular Jokka from M.C.A. Hogarth's Tales of the Jokka use seashells as money, because they live in a landlocked wasteland separated from the nearest ocean by an impassable mountain range. Towards the end of The Worth of a Shell, the protagonists find a tunnel through the mountains and discover a beach covered with shells. Their initial thought is that they're rich, but then they realize that if they took all those shells back with them the economy would be ruined.

Music

  • Kip Adotta's "Wet Dream" is Hurricane of Puns story taking place amidst sea life. In it, Marlin (the protagonist of the story) is at a bar and pays for his lunch with a fin. On porpoise. He even dropped a sand dollar in the box for Jerry's Squids. For the halibut.

Tabletop Games

  • In Exalted, the marine settlements of the West use red cowry shells as currency (though, for portability's sake, they place them on strings).
  • In Predation, many of the new nautil 'coins' are real nautilus shells, harvested, dried and preserved.

Video Games

  • In Insaniquarium, the Fish Emporium seen in the Virtual Tank mode uses seashells as money, unlike the rest of the game, where regular money is used instead. Therefore, in this mode, the Guppies and other fishes drop shells instead of coins.
  • Catfish Carl's shop in Octogeddon uses clamshells as currency, probably as a reference to the aforementioned Fish Emporium.
  • OMORI: In Headspace, the party buys everything with clams. In the real world, they use normal dollars.
  • In Squid Ink, the money you earn consists in seashells.
  • In Super Mario Odyssey, the area-specific currency in Bubblaine is purple scallops.
  • World of Warcraft:
    • The Winterfin tribe in Northrend values seashells above all other kinds of objects. So much that their currency is the Winterfin Clam.
    • Murlocs in the Broken Isles can be pickpocketed by rogues. Where most humanoids yield gold for this skill, murlocs give Common Shore Shells.
  • The Legend of Zelda: Link's Awakening has the Secret Seashells, of which there are 26 (in the original) or 50 (in the remake) in total, which you turn in at the Seashell Manor to get rewards.
  • In Pillars of Eternity II: Deadfire, shells are used as currency in the titular archipelago.
  • Zniw Adventure: Justified. The village of Fungilla uses seashells as their currency. A Troodon shopkeeper explains that this is because the village is inside a hollow mountain, where seashells are rare. There used to be an entrance and exit to the mountain before it was blocked off by the thief plaguing the village. It's implied that the residents used to leave the mountain to collect the seashells.

Web Animation

  • Bugbo: In the first episode, the Stone Merchant says that the currency in this world is "shells." However, we don't get to see what they look like.
  • The Hololive short Shark'd has Gawr Gura, newly arrived to the human world, attempt to pay for clothes and food using sand and seashells, which is presumably the currency in her home of Atlantis

Western Animation

  • In the BoJack Horseman episode "Fish Out of Water", BoJack tries shopping at an underwater convenience store that refuses to take his paper money and only accepts shells, prompting him to rob the store.
  • "Clams" are used as standard money in Droners.
  • The Flintstones use whole clams, based on "clams" being slang for dollars at the time the show was made.
  • In the children's show Happy Ness: The Secret of the Loch, the nessies use seashells as currency.
  • In a song from the Schoolhouse Rock! short "This for That" that deals with the money through the ages, the historical accuracy held by this trope is mentioned in this verse:
    Shiny shells were far more portable
    Why not use them for what's affordable?
    I'll give you this for that, that for this
    With shiny shells why barter?
    I'll give you this for that, that for this
    Shelling out shells is smarter!
  • In one episode of The Adventures of Jimmy Neutron, Boy Genius, a throwaway line implies Sheen tried to buy something at the local sweet store with seashells. They weren't accepted.
  • SpongeBob SquarePants, despite its undersea setting, mostly averts this trope by using regular coins and bills, although the dollar bills have shells printed on the center of them.

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