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[[File:Type Water/Ice.gif|link=Water/Ice type]]  
Species Bivalve Pokémon
Abilities Shell Armor
Skill Link
Overcoat (Dream World)
None ← 091 → None
Kanto N/A Johto N/A
Hoenn N/A Sinnoh N/A
Unova N/A Kalos N/A
Evolves From [[Shellder]]
Evolves Into None
'(パルシェン Parushen)'
[[Generation I]]
Evolutionary Line
No evolution line
Weight Height
Pokédex Color Egg Group
<font color=Purple>Purple</font>
Shape Footprint

Cloyster (Japanese: パルシェン Parushen) is a Water/Ice-type Pokémon introduced in Generation I.


Cloyster is actually a black pearl within two shells. The first shell is purple and rugged, while the second shell is gray. When the second shell is opened, a spike is revealed. Its face has a cruel look upon it.

Special abilities

Cloyster can have the ability Shell Armor or the ability Skill Link. Shell Armor prevents any critical hits to be landed on Cloyster. Skill Link increases the frequency of multi-hitting attacks. Cloyster's shell is extremely solid. It fights by keeping its shell tightly shut for protection, and by shooting spikes to repel foes.


Cloyster is the evolved form of Shellder by use of a Water Stone.

Game info

Game locations

Cloyster Locations
Version(s) Location Rarity
Red/Blue Evolve Shellder None
Yellow Evolve Shellder None
Gold/Silver Evolve Shellder None
Crystal Evolve Shellder None
Ruby/Sapphire Trade None
Emerald Trade None
FireRed/LeafGreen Evolve Shellder (FireRed)

Trade (LeafGreen)

Diamond/Pearl Evolve Shellder None
Platinum Evolve Shellder None
HeartGold/SoulSilver Trade None
Black/White Route 13, Undella Town, Undella Bay Rare

Side game locations

Cloyster Locations
Game(s) Location
Pokémon Snap River
Pokémon Channel Secret Cove
Pokémon Trozei! Endless Level 10, Endless Level 29, Forever Level 59, Mr. Who's Den
Red Rescue Team & Blue Rescue Team Evolve Shellder
Explorers of Time & Explorers of Darkness Miracle Sea (B1-B18) Deep Miracle Sea (B1-B4)

Pokédex Entries



  • It shares similarities with Starmie as it is based on a marine invertebrate, evolves with a water stone, and a 2 stage evolution.
  • In the Pokémon Adventures manga, Lorelei 's Cloyster has a gem like circle positioned in the center of its forehead..
  • Cloyster's name might be mixed from the word Clam and Oyster.


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