168 is umbron. You can see it with collector Ivan who is just before palpark. or can get it by having eevee with full happiness at night.
170 is glaceon. Another evolved form of eevee. (sorry don't know anything more.)
and...
190 is dusclops. The evolvedform of duskskull. Level duskskull up to level 37. or you can see him at sendoff spring or turn back cave.
Hope it helps
barboach? http://pokemon.marriland.com/platinum/pokedex/barboach/ look at the bottom
route 222 diamond/pearl - battle the sailors platinum battle - the 3rd fisherman from the left
1 way to get hippopotas in platinum is to catch every single unown ( abcdefghijklmnopqrstuvwxyz?! ) then go to the ruin maniac's cave and you will see one and be able to catch it. Another way is to catch a hippowdon and breed it with a ditto or another gender hippowdon. get the egg and hatch, you have a lv. 1 hippopotas. The last way would be to find a trainer that has one. If you use Action Replay DS and if you have the cheat, catch trainer's pokemon, you can find that trainer and steal his hippopotas.
you cant
For the Sinnoh Pokedex it is Clefa ,you can find it in Mt. Coronent
You might find one in the Battle Frontier, but it won't register in your Pokedex.
You may need to find a trainer who has an Unown (sometimes wrongly spelled as Unknown) to complete your Pokedex. You can find someone who has it in the Solaceon Ruins.
It is a high tech device to record Pokemon you find or catch.
yes
go to this website, find the name, and go get the pokemon!http://pokemonplatinum.net/v2/pokedex/
Number 162 in Sinnoh Pokedex is Lickilicky and you can find it in a trainer's party on Victory Road.
i dont know but you can catch one in the forest
Pokemon #93 in the Platinum Pokedex is Sudowoodo, which you can catch on Route 221. It has a 25% chance of appearing.
if you are talking abuot pokedex number 53 it it persian a trainer has one on route 221
To catch him you need a porygon which is in the house just above the pk center in veilstone.attach an upgrade to him and trade him to someone who has d/p/pl then trade back.if you just want him on the pokedex there is a trainer at route 216 who has one.its a girl and shes an ace trainer.
http://www.serebii.net/platinum/nationaldex.shtml Go there, and scroll down. There is a list of Pokemon for the pokedex, and their locations to see / catch them.
You can't catch it but you can see it. A trainer south of victory road has it.