The Pokémon Toedscool and Toedscruel (divergent evolutions of Tentacool and Tentacruel) are called "OKAKINGU" and "OKAGYARADOSU" in the game's data respectively. This is interesting as these names seem to instead reference the names of Magikarp, called "Koiking" in Japan, and its evolution Gyarados respectively, meaning that the games were originally going to feature a pair of divergent evolutions for the Gyarados family instead of the Tentacruel family. However, there is no other data in the games but names for these scrapped Pokémon.
Contributed by PirateGoofy