210
all of them in the regional pokedex
493
in sinnoh 210
you need to find 210 Pokemon to complete the pokedex
You have see to many different pokemons. Then you will fill it (you have to every Pokemon to get national pokedex).
all 210 in platinum but you only have to see them
1 chimchar... or as many as you want if you go to pal park that is open when you finish the pokedex!
you can't find him in the wild in platinum but many people are willing to trade you one on the gts. however you have to have his picture in your pokedex to request him.
The sinnoh dex has 210 pokemon, and the national dex has 493 pokemon. It has an entire 664 pokemon (I think)
There're 156. National Pokédex nos. 494 to 649.
There are 493 Pokemon in the current National Pokedex.
you need 200 Pokemon to fill the whole pokedex