You can't transfer missingno, and even if you could, it would turn into whatever Pokémon had the same index number as it. :P
Also, Missingno was only possible due to the way the game was formatted in gen 1 and 2- it is completely incompatible with any other game. :P
However, > If two different Trainers have the same Trainer name, identical ID numbers and identical hidden ID numbers (a 1 in 4,294,967,296 chance if the names do not differ), the game will recognize the two Trainers as the same, so the Pokémon are not considered to be outsider Pokémon.
This will allow you to rename the Pokémon despite not catching it. However, this is incredibly unlikely. :P