Tynamo is a short, white, eel-like Pokémon with dark, oval eyes and a red, four-point star-shaped mouth. A wavy, yellow stripe runs along its body, which has a long fin membrane, giving it a tapered shape.
Tynamo has an organ that generates electricity, which it discharges when in danger. A single Tynamo does not generate much power, so groups of Tynamo move in schools and create a shock that is comparable to lightning. The Pokémon Company merchandise artwork and several TCG illustrations depict Tynamo swimming in or leaping out of bodies of water.
A female Tynamo made her animated series debut in Dazzling the Nimbasa Gym!. Elesa used her as her last Pokémon in her Gymbattle against Ash. She battled Pikachu, but lost after Pikachu used Thunderbolt on the entire battlefield and then attacked Tynamo with Iron Tail. Tynamo is, rather ironically, Elesa's strongest Pokémon, and Elesa refers to Tynamo as her "Electric Queen". She reappeared in a flashback in Curtain Up, Unova League!.
Tynamo and its evolved forms are based on eels,[1] perhaps specifically the electric eel (which is actually a type of knifefish, despite its name). Tynamo in particular was designed to resemble the larval stage of the eel (leptocephalus).[1]
Tynamo may also be based on leeches, lancelets, or Gymnotiformes (knifefish). Given its evolutionary relatives' resemblance to lampreys, it is also possible that Tynamo may be based off of an ammocoete (the larval form of a lamprey, known as 八目鰻 yatsume unagi (literally "eight-eyed eel") in Japanese).
The yellow mark on the side of its body bears some resemblance to the visible spine of Haikouichthys, as well as the visible current within electrical discharge tubes such as the Crookes tube and the Geissler tube.
This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon species, as well as Pokémon groups and forms.