Arbok - Kobra
There are 4 that I found Arbok- Kobra Ekans- Snake Rotom- Motor The 4th I'd rather...not say.
Ekans- Snake Arbok- Kobra Theres a third but I want to keep this clean for the little ones.
You also have Rellor which is roller. And if you look at Rabsca, it's really tricky. The Pokemon looks like a Scarab. And if you invert the syllables, Rab and Sca, you have Baracs, which spells Scarab backwards.