89: Muk 91: Cloyster

Shellder

90: Shellder

Kanto

	HeartGold	SoulSilver	FireRed	LeafGreen	Yellow	Red	Blue
Walking in tall grass or a cave
Seafoam Islands 1F						19% L28–30
Seafoam Islands B1F						15% L32	20% L30
Seafoam Islands B2F						5% L28	10% L30
Seafoam Islands B3F						15% L29–31
Seafoam Islands B4F						30% L31–33
	HeartGold	SoulSilver	FireRed	LeafGreen	Yellow	Red	Blue
Fishing with a Good Rod
Cinnabar Island	10% L20	10% L20
Pallet Town	10% L20	10% L20
Route 26	10% L20	10% L20
Route 27	10% L20	10% L20
Sea Route 20	10% L20	10% L20
Sea Route 21	10% L20	10% L20
Vermilion City	10% L20	10% L20
Vermilion City S.S. Anne dock	10% L20	10% L20
	HeartGold	SoulSilver	FireRed	LeafGreen	Yellow	Red	Blue
Fishing with a Super Rod
Cinnabar Island			40% L15–25
Cinnabar Island	30% L40	30% L40				25% L15	25% L15
Five Island			40% L15–25
Icefall Cave waterfall			40% L15–25
One Island			40% L15–25
Pallet Town			40% L15–25
Pallet Town	30% L40	30% L40
Route 11						50% L15	50% L15
Route 17					30% L25–35
Route 18					60% L20–40
Route 26	30% L40	30% L40
Route 27	30% L40	30% L40
Route 6						50% L15	50% L15
S.S. Anne			40% L15–25
Sea Route 19						25% L15	25% L15
Sea Route 20	30% L40	30% L40				25% L15	25% L15
Sea Route 21	30% L40	30% L40				25% L15	25% L15
Seafoam Islands B3F						25% L15	25% L15
Seafoam Islands B4F						25% L15	25% L15
Vermilion City	30% L40	30% L40				50% L15	50% L15
Vermilion City S.S. Anne dock	30% L40	30% L40			10% L10	50% L15	50% L15
Vermillion City			40% L15–25

Johto

	HeartGold	SoulSilver
Fishing with a Good Rod
New Bark Town	10% L20	10% L20
Route 47	10% L20	10% L20
Sea Route 41	10% L20	10% L20
	HeartGold	SoulSilver
Fishing with a Super Rod
New Bark Town	30% L40	30% L40
Route 47	30% L40	30% L40
Sea Route 41	30% L40	30% L40

Sinnoh

	Platinum	Diamond	Pearl
Fishing with a Super Rod
Fuego Ironworks	15% L20–50	15% L20–40	15% L20–40
Route 205 south, towards Floaroma Town	15% L20–50	15% L20–40	15% L20–40
Valley Windworks	15% L20–50	15% L20–40	15% L20–40