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Gastrodon (Japanese: トリトドン Tritodon) is a dual-type Water/Ground Pokémon introduced in Generation IV.

It evolves from Shellos starting at level 30.

Gastrodon have two different appearances: West Sea (pink and brown) and East Sea (blue and green), found on the respective sides of Sinnoh's mountain range.

Biology

Gastrodon is a sea slug-like Pokémon, and appears much the same as its pre-evolution, but it gains four more stubby legs and is noticeably larger. They both have plain black eyes with white irises, with a third eye in the center of their forehead. Like Shellos, Gastrodon has two forms which is influenced by its diet and the sea it lives in.

In its West Sea form, the flower-like crest it had as a Shellos has now turned into horns adorning the side of its head, which point directly upwards in a crescent moon shape. Its underside up to the bottom of its mouth is pink, its back and the top of its head is completely brown, and it has two small protrusions on its back with several pink spots dotted around them. It also has two small protrusions on its neck underneath the horns, and it has a yellow border running down its body from its head, separating the brown and the pink coloration.

In its East Sea form, it retains the horns it had as a Shellos, although now fully colored green which point at a 45 degree angle. Its underside up to the bottom of its mouth is blue, its back and the top of its head is completely green, and it has two yellow "fins" adorned on its back with a third bordering its side and rear, as well as two small blue spots between them. It has a yellow border running down its body from its head, separating the blue and the green coloration.

Gastrodon and its pre-evolution Shellos are examples of allopatric speciation, though they are still able to breed. It is also a relative of Shellder and Cloyster. When it is threatened, it oozes purple fluid and flees. Gastrodon lives in shallow tidal pools. Gastrodon has strong regenerative capabilities that allows it to recover from injures within a few hours. Gastrodon's main diet consists of plankton. However, it is known occasionally looks for food on land leaving sticky trail of slime in the process. It is known to have a surprisingly resilient body despite its soft and squishy appearance. Gastrodon cannot stay on land for too long due its body being highly vulnerable to dehydration. In ancient times, it used to have a shell on its back which has changed into a thin yet hard vestigial plate.

In the anime

West Sea Gastrodon in the anime

East Sea Gastrodon in the anime

Major appearances

In Last Call — First Round!, Zoey's West Sea Shellos was revealed to have evolved into a Gastrodon. It was used alongside Lumineon in the Performance Stage of the Sinnoh Grand Festival. Gastrodon was later used in the Contest Battles as well, winning them and assuring Zoey would make her way to the finals.

Other

West Sea Gastrodon debuted in Double Team Turnover!, under the ownership of Cynthia. In Aiding the Enemy, it battled Aaron's Beautifly on television. It was able to defeat Beautifly in addition to Aaron's Drapion, giving Cynthia the win.

East Sea Gastrodon debuted in Familiarity Breeds Strategy!, under the ownership of Paul. It battled Ash's Staraptor and Buizel in their League match, losing against the latter.

Minor appearances

In Old Rivals, New Tricks!, a Coordinator's West Sea Gastrodon competed in the Sandalstraw Contest.

Two Gastrodon, one East Sea and one West Sea, appeared in Chasing Memories, Creating Dreams!, under the ownership of different Trainers. They watched Professor Kukui's announcement of the Manalo Stadium's completion.

Pokédex entries

Episode Pokémon Source Entry DP097 Gastrodon

(West Sea) Dawn's Pokédex Gastrodon, the Sea Slug Pokémon and the evolved form of Shellos. Gastrodon inhabits the shallow tidal pools of the ocean, and its sturdy shell serves to protect its body. DP186 Gastrodon

(East Sea) Dawn's Pokédex Gastrodon, the Sea Slug Pokémon and the evolved form of Shellos. A sturdy shell covered Gastrodon's back long ago. Its cells still contain evidence of it today.

In the manga

In the Pokémon Adventures manga

A East Sea Gastrodon first appeared in Knowledge of the Unown I, under the ownership of a Pa.

Jupiter owns a West Sea Gastrodon, which debuted in Stopping Sableye. It was first used to battle Platinum, Maylene, and Candice at Lake Acuity.

In The Final Dimensional Duel V, a West Sea Gastrodon appeared in a flashback on Fullmoon Island as one of the Pokémon affected by Darkrai's Bad Dreams. It was rescued and healed by Palmer.

Hapu owns an East Sea Gastrodon, which first appeared in Battle in Vast Poni Canyon.



In the TCG

Game data

Pokédex entries

Game locations

In side games

In events

Held items

Stats

Base stats

Pokéathlon stats

Type effectiveness

Learnset

Generation VIII Other generations: IV - V - VI - VII Game Move Type Cat. Pwr. Acc. PP Sw Sh IoA Skitter Smack Bug Physical 70 90% 10 Bold indicates a move that gets STAB when used by Gastrodon

indicates a move that gets when used by Gastrodon Italic indicates a move that gets STAB only when used by an evolution of Gastrodon

indicates a move that gets STAB only when used by an evolution of Gastrodon Click on the generation numbers at the top to see Move Tutor moves from other generations

By a prior evolution

Generation VIII Other generations: IV - V - VI - VII Stage Move Type Cat. Pwr. Acc. PP This Pokémon has no moves exclusive to prior evolutions. Bold indicates a move that gets STAB when used by Gastrodon

indicates a move that gets when used by Gastrodon Italic indicates a move that gets STAB only when used by an evolution of Gastrodon

indicates a move that gets STAB only when used by an evolution of Gastrodon Click on the generation numbers at the top to see moves from other generations

Side game data

West Sea

East Sea

Evolution

West Sea

East Sea

Sprites

Trivia

Early back sprite of Gastrodon

Origin

Gastrodon is based on a sea slug, perhaps specifically of the order Opisthobranchia. The East Sea Gastrodon seems to be based on a sea hare.

Name origin

Gastrodon is a combination of gastropod and don (Spanish for lord). It may also derive from Gastropteron, a genus of sea slug.

Tritodon is a combination of from Tritoniidae or Triton (referring to either the common name of the gastropod genus Charonia) or the aquatic Greek god and don. It may also involve the word torito (Spanish for little bull, referring to its appearance).

In other languages

Language Title Meaning Japanese トリトドン Tritodon From Tritoniidae or Triton (referring to either the aquatic Greek god or the common name of the gastropod genus Charonia) and don. May also involve the word torito (Spanish for little bull) French Tritosor From Triton and saurus Spanish Gastrodon Same as English name German Gastrodon Same as English name Italian Gastrodon Same as English name Korean 트리토돈 Tritodon Transliteration of Japanese name Cantonese Chinese Mandarin Chinese 海牛獸 Hǎi Niú Shòu Literally "Manatee beast" More languages Thai ไทรโทดอน Tritodon Transcription of trademarked Japanese name





West Sea Language Title Japanese にしのうみ West Sea Chinese Cantonese 西海 Sāihói Mandarin 西海 Xīhǎi French Mer Occident German Westliches Meer Italian Mare Ovest Korean 서쪽바다 West Sea Portuguese Mar Oeste Spanish Mar Oeste Thai ทะเลตะวันตก

East Sea Language Title Japanese ひがしのうみ East Sea Chinese Cantonese 東海 Dūnghói Mandarin 东海 Dōnghǎi French Mer Orient German Östliches Meer Italian Mare Est Korean 동쪽바다 East Sea Portuguese Mar Leste Spanish Mar Este Thai ทะเลตะวันออก



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