No, it's not a worm but it's the world's smallest snake, which has been discovered in the Caribbean.
Measuring just 10cm long and as thin as a piece of spaghetti, it was found under a rock on the island of Barbados.
The snake is small enough to crawl up on an American quarter coin, which is about the same size as a 10p piece.
The new snake, Latin name Leptotyphlops carlae, is smaller than any of the other 3,100 previously known snakes. Only two of its kind have been found.
The grey snake has two yellow stripes and isn't poisonous but likes to eat termites.
The snake was actually found in 2006, but scientists have been studying it.
The world's longest snake is the reticulated python, which grows to 10m long and lives in southeast Asia.