Shellos
The Sea Slug Pokémon
Type: Water
Official Registration #: 422
Entry: A colorful gastropod pokémon that live in a wide variety of warm, shallow seas. Shellos colors vary from sea to sea, depending on the composition and temperature of the sea itself, as well as other factors, such as the primary species of local coral. Contrary to popular belief, shellos are not the pokémon that possess the ability to expel their stomachs as a defense mechanism and unique digestive technique. Rather, they are the pokémon that possess brightly-colored stinging cells armed with toxic venom that is capable of paralyzing predators that attempt to grasp its slippery body too roughly … a fact that, conveniently, is conveyed through a warning in the form of shellos’s brilliant coloration.
Gastrodon
The Sea Slug Pokémon
Type: Water/Ground
Official Registration #: 423
Entry: The evolved form of shellos, by battle experience. A large, sea hare pokémon, gastrodon are herbivorous, docile creatures that roam the beds of shallow seas, hunting for seaweed. They are most notable for their defense mechanism: the ability to spray a cloud of purple ooze that is somehow more viscous and difficult to handle than even octillery ink. Studies show that gastrodon once had a rock-hard shell as well, but to be frank, when you evolve the ability to blind unwitting bystanders, such as an admittedly overzealous researcher, in waters you share with tentacruel and sharpedo, a shell would be somewhat excessive.
The Pokédex According to Bill 