Cherrim < Shellos > Gastrodon
Sea Slug Pokémon
1′ (0.3m)
13.9 lbs. (6.3kg)
Gender Ratio
Male: 50%
Female: 50%
Evolves From
Evolves Into
Egg Group
Catch Rate
EV Yield

Shellos (カラナクシ) is the 60th Pokémon in the Sinnoh Pokédex. It is a Water-Type, and is known as the Sea Slug Pokémon.

Shellos can use one of two Abilities: Sticky Hold, which prevents its hold item from being stolen, knocked away or switched, or Storm Drain, which in Double and Triple Battles, draws all Water-Type Moves to the Pokémon with the ability instead of who it was targeted at, absorbing the move and increasing its Special Attack by one stage. Its Hidden Ability is Sand Force, which increases the power of its Ground, Rock, and Steel Type moves in a Sandstorm by 33%.

Shellos gain the opportunity to evolve into Gastrodon starting at Level 30.

Shellos is in the Egg Groups Water 1 and Amorphous, and its Egg takes approximately 5,120 Steps to hatch. It takes Shellos One Million Experience Points to reach Level 100.




Shellos has two separate forms, the East Sea and the West Sea forms.The west sea form, its upper body is pink, and its lower body is white. There are spikes on its back, and there is a circle of pink sac-looking structures on it. The East Sea version is green on the bottom and blue on the top. It has two wing-looking flaps on its back, and its head has two structures similar to the West Sea Shellos, but turned sideways resembling horns.

Gender Differences

Shellos has no gender differences.

Game Information

Original Games

The form that Shellos takes in Diamond, Pearl and Platinum depends on the side of Sinnoh that it is encountered in, and its form cannot be changed once captured. Shellos appear at Routes 205, 213, 218, Valley Windworks and Fuego Ironworks in Diamond, Pearl and Platinum. Shellos also appear at Routes 221 and 224 in Diamond and Pearl, and Route 212, Pastoria City and Canalave City in Platinum. The only way to obtain a Shellos in Heart Gold and Soul Silver is to catch one on the Pokéwalker course Stormy Beach.

A Shellos can be obtained in Black 2 and White 2 as part of an in-game trade in Nimbasa City. The trainer will request any Pokémon in return. Male trainers will receive a West Sea Shellos, while Female trainers will receive an East Sea Shellos. Both will be holding an Old Gateau.

In Pokémon X and Y, the only way to obtain Shellos is to breed a Gastrodon. In Pokémon Omega Ruby and Alpha Sapphire, it can be found in the wild at Route 103 and Route 110 using the DexNav feature of the PokéNav Plus, after the defeat or capture of Groudon or Kyogre.

In Pokémon Sun and Moon, Shellos can only be obtained by breeding a Gastrodon.

Spin-Off Games

West Sea Shellos can be found at Drenched Bluff B1-B6, while East Sea Shellos appear at Beach Cave B1-B4 in Explorers of Time, Explorers of Darkness and Explorers of Sky. Shellos appears in all three versions of Mystery Dungeon 3, appearing at Secret Archipelago, Secret Highland and Secret Rockmountain 1F-10F, with both East Sea Shellos and West Sea Shellos appearing on different floors.

Shellos can be found at Vientown Beach and Marine Cave in Pokémon Ranger: Shadows of Almia. In Pokémon Ranger: Guardian Signs Shellos appears at Curl Bay on Renbow Island in the Present, but doesn't appear in the Past Missions.

Shellos appears at Desolated Ruins Beach 3-1 and Sunny Seashore Beach 4-3 in Pokémon Rumble Blast.

Trading Card Game

East Sea Shellos are listed as Common Cards in the Secret Wonders, Majestic Dawn and Rising Rivals sets, while West Sea Shellos are listed as Common Cards in the Secret Wonders and Rising Rivals sets.

Anime/Manga Information


Zoey would debut a West Sea Shellos in the episode A Stand-Up Sit-Down, and would continue to use it through the episode Double-Time Battle Training!.

A Wild East Sea Shellos appeared during the episode Gateweay to Ruin, the only appearance of a Wild Shellos in the Anime as of writing.


Wild East Sea Shellos appeared during the film The Rise of Darkrai, the only appearance for Shellos in the films as of writing.


Shellos' Manga Information is unknown as of writing.

Pokémon Information

Competitive Battling

Shellos is in the Not Fully Evolved Tier of Competitive Battling as it is an unevolved Pokémon.

Area Location

Game Rarity Location
Diamond/Pearl 1% Route 224
Diamond/Pearl 10% Route 205: North, Route 213 (Night), Route 221
Diamond/Pearl 20% Route 218, Fuego Ironworks
Diamond/Pearl 30% Valley Windworks
Diamond/Pearl 40% Route 213
Diamond/Pearl 45% Route 205: South
Platinum 4% Route 213 (Surfing)
Platinum 30% (Surfing) Route 218, Fuego Ironworks, Pastoria City, Canalave City
Platinum 35% Route 213 (Morning & Day)
Platinum 45% Route 212: South, Route 213 (Night), Valley Windworks
Platinum 60% (Surfing) Route 205: South, Route 212: South
Platinum 65% Route 205: South
HeartGold/SoulSilver None Transfer from Pokéwalker
Pokéwalker 55% (Group A) Stormy Beach (>5,000 Steps)
Black/White None PokéTransfer or Dream World
Black 2/White 2 Only One In-Game Trade at Nimbasa City (Trainer requests any Pokémon in return)
X/Y None Breed Gastrodon
Omega Ruby/Alpha Sapphire -- Route 103, Route 110 (DexNav)
Sun/Moon None Breed Gastrodon

Pokédex Entries

Gen Game Pokédex Entry
IV Diamond Its color 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.
HeartGold Its shape and coloration vary, depending on its habitat.
SoulSilver Its shape and coloration vary, depending on its habitat.
V 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.
VI 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.

West Sea

Gen Game Pokédex Entry
VII 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
Ultra Moon

East Sea

Gen Game Pokédex Entry
VII Sun Shellos lives in the sea and feasts on plankton. The lovelier the ocean where Shellos resides, the more vibrant its color becomes.
Moon The difference in color from one Shellos to another seems to be a result of their diet. No large changes can be seen in their capabilities.
Ultra Sun
Ultra Moon

Pokéthlon Statistics



Base Stats Min- Min Max Max+
. 262 356 .
90 101 195 214
90 101 195 214
Sp. Atk
107 119 213 234
Sp. Def
116 129 223 245
65 73 167 183


Via Level-Up

Level Up
Level Move Type Power Accuracy Class
Start Mud-Slap Ground.gif 20 100 Special.png
2 Mud Sport Ground.gif -- -- Other.png
4 Harden Normal.gif -- -- Other.png
7 Water Pulse Water.gif 60 100 Special.png
11 Mud Bomb Ground.gif 65 85 Special.png
16 Hidden Power Normal.gif 60 100 Special.png
22 Rain Dance Water.gif -- -- Other.png
29 Body Slam Normal.gif 85 100 Physical.png
37 Muddy Water Water.gif 90 85 Special.png
46 Recover Normal.gif -- -- Other.png


TM/HM - Gen 7
TM/HM No. Move Type Power Accuracy Class
TM06 Toxic Poison.gif -- 90 Other.png
TM07 Hail Ice.gif -- -- Other.png
TM10 Hidden Power Normal.gif 60 100 Special.png
TM13 Ice Beam Ice.gif 90 100 Special.png
TM14 Blizzard Ice.gif 110 70 Special.png
TM17 Protect Normal.gif -- -- Other.png
TM18 Rain Dance Water.gif -- -- Other.png
TM21 Frustration Normal.gif  ?? 100 Physical.png
TM27 Return Normal.gif  ?? 100 Physical.png
TM32 Double Team Normal.gif -- -- Other.png
TM42 Facade Normal.gif 70 100 Physical.png
TM44 Rest Psychic.gif -- -- Other.png
TM45 Attract Normal.gif -- 100 Other.png
TM48 Round Normal.gif 60 100 Special.png
TM55 Scald Water.gif 80 100 Special.png
TM83 Infestation Bug.gif 20 100 Other.png
TM87 Swagger Normal.gif -- 85 Other.png
TM88 Sleep Talk Normal.gif -- -- Other.png
TM90 Substitute Normal.gif -- -- Other.png
TM94 Surf Water.gif 90 100 Special.png
TM100 Confide Normal.gif -- -- Other.png

Via Breeding

Via Breeding
Move Type Power Accuracy Class
Acid Armor Poison.gif -- -- Other.png
Amnesia Psychic.gif -- -- Other.png
Brine Water.gif 65 100 Special.png
Clear Smog Poison.gif 50 -- Special.png
Counter Fighting.gif  ?? 100 Physical.png
Curse Ghost.gif -- -- Other.png
Fissure Ground.gif  ?? 30 Physical.png
Memento Dark.gif -- 100 Other.png
Mirror Coat Psychic.gif  ?? 100 Special.png
Mist Ice.gif -- -- Other.png
Sludge Poison.gif 65 100 Special.png
Spit Up Normal.gif  ?? 100 Special.png
Stockpile Normal.gif -- -- Other.png
Swallow Normal.gif -- -- Other.png
Trump Card Normal.gif  ?? -- Special.png
Yawn Normal.gif -- -- Other.png


Move Type Power Accuracy Class
Breakneck Blitz Normal.gif 160*/160* -- Physical.png Special.png
All-Out Pummeling Fighting.gif 100 -- Physical.png
Acid Downpour Poison.gif 120 -- Special.png
Tectonic Rage Ground.gif 180*/120* -- Physical.png Special.png
Savage Spin-Out Bug.gif 100 -- Special.png
Hydro Vortex Water.gif 175 -- Special.png
Shattered Psyche Psychic.gif 100 -- Special.png
Subzero Slammer Ice.gif 185 -- Special.png

Transfer Only Z-Moves

Move Type Power Accuracy Class
Tectonic Rage Ground.gif 175 -- Special.png
Continental Crush Rock.gif 120 -- Special.png
Hydro Vortex Water.gif 160 -- Physical.png

Past Moves

Via Move Tutor (Black 2/White 2)

Move Type Power Accuracy Class
Earth Power Ground.gif 90 100 Special.png
Icy Wind Ice.gif 55 95 Special.png
Pain Split Normal.gif -- -- Other.png
Sleep Talk Normal.gif -- -- Other.png
Snore Normal.gif 40 100 Special.png

Via Dream World

Move Type Power Accuracy Class
Secret Power Normal.gif 70 100 Physical.png

Generation IV Exclusive Moves


Via Move Tutor

Platinum/Heart Gold/Soul Silver
Move Type Power Accuracy Class
Ancientpower Rock.gif 60 100 Special.png
Heart Gold/Soul Silver
Move Type Power Accuracy Class
String Shot Bug.gif -- 95 Other.png
Headbutt Normal.gif 70 100 Physical.png

Evolution Line

Rare Candy Sprite.png
Level 30

Type Matchups

Type Attack Advantages Attack Disadvantages Defense Advantages Defense Disadvantages

Related Threads

Shiny Shellos, why? - last post by @ Nov 4, 2007
Shellos/Gastrodon Color Question - last post @ Jun 10, 2018
Blue Shellos? - last post by @ Jun 7, 2007
Possibly more Shellos? - last post by @ Sep 24, 2013
blue shellos? - last post by @ Nov 24, 2007
Last edited by Squiggle on 20 March 2017 at 23:41
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