National Dex: All Pokemon
Kanto Dex: 1st Gen (Red/Blue/Yellow)
Johto Dex: 2nd Gen (Gold/Silver/Crystal)
Hoenn Dex: 3rd Gen (Ruby/Sapphire/Emerald)
Sinnoh Dex: 4th Gen (Diamond/Pearl/Platinum)
Unova Dex: 5th Gen (Black/White)
Kalos Dex: 6th Gen (X/Y)
Pokemon that have not yet evolved to their final stage.
E.g. Bulbasaur & Ivysaur are consider NFE because Venusaur is the final evolution of that line.