Alright, I see where the confusion is.

 

Kanto Pokémon refers to the Pokémon native to the Kanto region. This would be the first 150 Pokémon in the PokéDex. 
Even though a Pokémon was caught in the Kanto region, that would not make it a native Kanto Pokémon. For example, Smeargle is native to the Johto region, so it would count towards the Johto PokéDex, even if caught within Kanto.

 

I hope this clears things up. If not, or if you have further questions, please let me know. 

but the canto were all caught, some were not counted even though they were in the canto, that's what I mean

 

 

 

 

 

 

I get what you mean. A Pokémon being caught in Kanto does not equate to it being a Kanto native Pokémon.

Using the same example as before, if you catch a Smeargle in Kanto, it will still count towards the Johto dex because it is a Johto Pokémon. Likewise, if you catch a Ponyta in Sinnoh, it will still count towards the Kanto dex because it is originally from Kanto.