Magicarp
Rotom is not in the Pearl Pokedex.
Sneasel is number 144 in the Sinnoh Pokedex.
Number 25 on the pokedex in Pokemon pearl is BUDEW the grass & poison type Pokemon.
In pearl#80 is barboach.
Gachomp is #111 in the Sinnoh Pokedex.
Clamperl is #366 in the national pokedex.
spiritomb
http://pokemon.marriland.com/diamond_pearl/pokedex/cherrim
Dialga is # 149 in the pearl pokedex
in diamond, pearl and platinum it is heracross
Sneasel
combee