Shellos

Shellos is a Water-type region-exclusive Pokémon from the Sinnoh region. It evolves into Gastrodon after being fed 50 candies. West Sea is available in west of longitude 0 while East Sea is available in east of it.

Trivia

 * On April 29, 2019, there were various reports of both forms of Shellos appearing around the world. About ten minutes later, the spawns ceased and the Shellos were reverted back to event spawns.
 * Both forms of Shellos appeared around the world in the first half hour. Then they were taken down and became region-exclusive Pokémon few hours later.
 * Both forms of Shellos appeared around the world in the first half hour. Then they were taken down and became region-exclusive Pokémon few hours later.