This list includes includes each different Pokémon form which is registered in the Pokédex:
|New Pokémon species that were made available to be obtained for the first time either by Research tasks, egg hatching, evolving, catching wild Pokémon, or Raid Battle Bonus Challenge.|
|New distinct regular Pokémon forms released. For reference go to List of Pokémon with different forms.|
|New distinct shiny forms released. For reference go to Shiny Pokémon and List of Shiny Pokémon.|
For clarity purpose, this list doesn't include:
- Pokémon gender differences. Both genders are made available when the Pokémon form is released. For reference go to List of Pokémon gender differences.
- When Combee was released, for a few days, only the female version was obtainable and the Pokédex entry only had the female switch.
- The Pokémon obtained before January 2017 had no gender and a random gender was assigned to them. The gender assigned did not activated the corresponding gender switch in the Pokédex, though. The player had to obtain another Pokémon with the corresponding gender to activate the switch.
- Pokémon obtainable only during certain events, which are not recorded in Pokédex. For reference go to Event Pokémon.
The total number of Pokémon species and Pokémon distinct forms (regular and shiny) was raised accordingly to the following regions added to the game:
|Kanto-region Pokédex introduced 151 new Pokémon species and distinct forms. Total count started with 151 Pokémon species and Pokémon distinct forms.|
|Johto-region Pokédex introduced 100 new Pokémon species and 127 distinct forms. Total count updated to 251 Pokémon species and 278 Pokémon distinct forms.|
| Hoenn-region Pokédex introduced 135 new Pokémon species, 148 distinct regular forms and 145 distinct shiny forms. Total count updated to 386 Pokémon species, 426 distinct regular forms and 423 distinct shiny forms.
|↑||Alola-region forms became available rising up Kanto-region Pokédex to 169 distinct forms. Total count updated to 444 Pokémon distinct regular forms and 441 distinct shiny forms.|
|Sinnoh-region Pokédex introduced 107 new Pokémon species and 121 distinct forms. Total count updated to 493 Pokémon species, 565 distinct regular forms and 562 distinct shiny forms.|
|?||Unknown-region Pokédex became available for Meltan and Melmetal. Total count updated to 495 Pokémon species, 567 Pokémon distinct regular forms and 564 distinct shiny forms.|
|↑||12 new Spinda forms were added to the game, rising up Hoenn-region Pokédex to 160 distinct forms. Total count updated to 579 Pokémon distinct regular forms and 576 distinct shiny forms.|
|↑||Addition of Armored Mewtwo rising up Kanto-region Pokédex to 170 distinct forms. Total count updated to 580 Pokémon distinct regular forms and 577 distinct shiny forms.|
Visit the following pages for detailed release information: