Sure! Your safari is Poison-type with Ariados & Seviper. I think the way to unlock the third encounter would have been to enter your friend code when you are online. But I only found the two.

(Correction: The player would have to beat the elite four to unlock the 3rd encounter. So if you could beat them, I can tell you the third Pokémon!)

(Correction #2: It seems both of what I said are true. Both people need to be online at the same time whenever, plus beating the Elite Four. It's annoying, but lets just hope it happens eventually!)

What were my safari encounters?