From Bulbapedia, the community-driven Pokémon encyclopedia.
Hippocampus is an extremely cute little male hippopotamus, which has the brains of two
[Alakazams]. File:Hippopotas anime yay.jpg
He welcomes all suggestions from the seniors of 
becaue he is just a little 11 year old.
His favourite pokemon are [bulbapedia.bulbagarden.net/wiki/Hippopotas_(Pokémon)]