To get your second (national) pokedex you have to complete the first (sinnoh) pokedex by seeing all the Pokemon in sinnoh. when you have, go to the professors lab in sandgem town and show him the pokedex, then professor oak will come and give you the national pokedex.
accourding to the Pokemon diamond and pearl national pokedex, the second biggest Pokemon is steelix. in the sinnoh pokedex it would be onix. hope that helped -jenny333
no but if you don't have the second pokedex you carn't trade any Pokemon so if you only have the first pokedex you can only get the Pokemon from diamond and pearl Pokemon.
No, there is not a Pokedex after the National Pokedex in Pokemon Diamond Version.
diamond pokedex number 80 is Barboach
Riolu
Oddish is the 43rd Pokemon.
in the national pokedex it is mackoke. if it is in the sinnoh pokedex it is buneary.
Number 33 is Golem on the Sinnoh Pokedex.
you can obtain him after getting the second pokedex or you can switch him of emerald hope i helped
arcanine
Yes.
In the Sinnoh Pokedex Number 114 is Mantine. In the National Pokedex its Kabutops.