Like in Hoenn & Sinnoh, Johto has it's own special Pokémon numbering system based upon the Pokémon you can capture and see in Heart Gold & Soul Silver. From the first details, it appears that it meshes closely with the original Johto Pokédex in Gold & Silver. However, although the numbers match up, we do not yet know if it will be exactly the same or if there are changes. As such, this page only contains the known Pokémon in Heart Gold & Soul Silver. It'll be updated as we get more information.

Johto No.	Picture	Name	Type 1	Type 2
#001		Chikorita
#002		Bayleef
#003		Meganium
#004		Cyndaquil
#005		Quilava
#006		Typhlosion
#007		Totodile
#008		Croconaw
#009		Feraligatr
#046		Togepi
#047		Togetic
#050		Ekans
#051		Arbok
#053		Mareep
#054		Flaaffy
#055		Ampharos
#058		Gastly
#059		Haunter
#060		Gengar
#062		Onix
#063		Steelix
#064		Bellsprout
#065		Weepinbell
#066		Victreebel