id,region_id,name,description
1,,National,Entire National dex
2,1,Kanto,Red/Blue/Yellow Kanto dex
3,2,Original Johto,"Gold/Silver/Crystal Johto dex—called the ""New"" Pokédex in-game"
4,3,Hoenn,Ruby/Sapphire/Emerald Hoenn dex
5,4,Original Sinnoh,Diamond/Pearl Sinnoh dex
6,4,Extended Sinnoh,Platinum Sinnoh dex—an extended version of Diamond and Pearl's
7,2,Updated Johto,"HeartGold/SoulSilver Johto dex—Gold/Silver/Crystal's, extended to add Generation IV evolutions"
8,1,Internal ID,IDs used internally in Generation I