so far no one has gotten it. Remember, I said sauroid was kinda close. this fish used to be but is no longer classified as Vieja/Paratheraps. it is now an exCichlasoma species according to Juan Miguel's site. that's your hint and it should be pretty easy now.
oh and Peanut, like mAri said it is Vieja argentea and godmanni I believe is now a Chuco species.