• Ruby, Sapphire, and Emerald

 > A seashell found deep inside the SHOAL CAVE.

 • FireRed and LeafGreen

 > A pretty seashell found deep inside the SHOAL CAVE. It is striped in blue and white.

 • Generation IV

 > A pretty seashell that was found deep inside the Shoal Cave. It is striped in blue and white.

 • Generation V

 > A pretty seashell that can be found deep inside the Shoal Cave. A maniac will buy it for a high price.

 • X and Y

 > A pretty seashell that can be found deep inside the Shoal Cave.

 • Generation VII

 > A seashell that you found inside Shoal Cave.