Diamond
Its colors and shapes differ from region to region. In the Sinnoh region, two types are confirmed.
Pearl
It lives along bodies of water. Its body shape has changed to suit its habitat.
Platinum
Beware of pushing strongly on its squishy body, as it makes a mysterious purple fluid ooze out.
Heart Gold
Its shape and coloration vary, depending on its habitat.
Soul Silver
Its shape and coloration vary, depending on its habitat.
Black
Beware of pushing strongly on its squishy body, as it makes a mysterious purple fluid ooze out.
White
Beware of pushing strongly on its squishy body, as it makes a mysterious purple fluid ooze out.
Black 2
Beware of pushing strongly on its squishy body, as it makes a mysterious purple fluid ooze out.
White 2
Beware of pushing strongly on its squishy body, as it makes a mysterious purple fluid ooze out.
X
Beware of pushing strongly on its squishy body, as it makes a mysterious purple fluid ooze out.
Y
Its shape and coloration vary, depending on its habitat.
Omega Ruby
Beware of pushing strongly on its squishy body, as it makes a mysterious purple fluid ooze out.
Alpha Sapphire
Its shape and coloration vary, depending on its habitat.
Sun
For the most part, it makes its home along the seashore. Its color and form differ according to its habitat and the quality of its food.
Moon
Purple mucus sticks to the hands of anyone who touches it. Take care, as the substance is troublesome to wash off.
Ultra Sun
While they normally live in the sea, they can function on land, too, until their skin dries out.
Ultra Moon
When it senses danger, a purple liquid oozes out of it. The liquid is thought to be something like greasy sweat.
Sword
This Pokémon’s habitat shapes its physique. According to some theories, life in warm ocean waters causes this variation to develop.
Shield
Subjecting this Pokémon to a strong force causes it to secrete a strange purple fluid. Though harmless, the fluid is awfully sticky.
Legends Arceus
Found in abundance on seashores bordering warm waters. Shellos are unexpectedly friendly and will crawl toward any person they see. Take care not to get coated in mucus!