Pokémon that don't evolve

This is a list of Pokémon that do not have regular evolutions in any of the Pokémon games (ignoring Mega Evolutions). This includes the majority of legendary and mythical Pokémon throughout the games.

Additionally, instead of evolving many of the Pokémon have counterparts: for example, Volbeat and Illumise are male and female opposites. Zangoose and Seviper apparently have a long history of feuding.

Generation 1

#127
Pinsir
Bug
#131
Lapras
Water · Ice

Generation 2

#213
Shuckle
Bug · Rock
#244
Entei
Fire
#250
Ho-oh
Fire · Flying

Generation 3

#359
Absol
Dark
#378
Regice
Ice

Generation 4


Generation 5

#632
Durant
Bug · Steel
#646
Kyurem
Dragon · Ice

Generation 6


Generation 7


Generation 8

#875
Eiscue
Ice