151 is Manaphy and can be found by looking at the book in Mr. Backlot's room in the Pokemon mansion on route 212.
Swinub is #203 in the Sinnoh Dex in Pokémon Platinum.
Vaporeon.
happiny
wormadam
its a cascoon
Swinub is #203 in the Sinnoh Dex in Pokémon Platinum.
Vaporeon.
happiny
wormadam
its a cascoon
Wormadam
Dusclops
It is Leafeon.
Glaceon
Dusclops
Rotom
porygon