The Crater Coin is one of the one hundred Constellation Coins that can be salvaged in Endless Ocean: Blue World. It can be found in the Cortica River's Upstream area (in the Twilight Temple), right in the center of grid coordinates C-1, to the left of the flat space scattered with pillars. In this coin's zoom-mode patch, one or two Altum Angelfish make their homes.
- In Greek Mythology, the constellation Crater was meant to represent the cup of the god Apollo, which was often carried by the bird Corvus. At one point in time, the bird was lazy on its way to fetch water for Apollo, and brought back a random water snake (the Hydrus constellation)as an excuse, because a "great serpent" kept Corvus from the water. Apollo, seeing past this lie, threw the three things into the sky, where they rest.
- The Crater constellation's name is Latin for "cup".