I’m searching burmy in Pokémon eternal x

Hello, I hope everything is going well

I'm doing a catch em all on Pokémon eternal x, where it was stipulated that all 721 pokemon were available

However I'm stuck because I can't find a way to find burmy, I have access to the documentation but I can't find it on any docs,

I'm already at 520/721 it would piss me off a little to find out now that the challenge isn't possible lol THANKS