If what you are refering to is a twinspot yellow wrasse, I've never really seen any other yellow wrasse. Be carefull, its hardy, I had it in my tank for long time , BUT it ate all my pods, shrimp, even blood shrimp that was twice his size! I tried to introduce peppermint shrimps to battle aptasia in my tank and they turned into a $60 snack in matter of seconds. He literally killed for the hell of it lol not even because he was hungry. I am sure every fish is different but this one happened to be very agressive.
Hope this helps.