The ones I can think of are Doduo, Dugtrio, Dodrio, Exeggute, Exeggutor, Weezing, Girafarig (it does count, for the head on its tail has a brain and thinks separately), Combee, Cherubi, Vanilluxe, Klingklang, Zweilious, Hydreigon, Magneton, Magnezone, and I think that's it. I don't know if Slowpoke or Slowking count.. I doubt Mawile because technically, the thing on the back of its head is its actual jaw.