yellow Spilotes did indeed I believe come from Gladys Porter Zoo. I remember obtaining some from Pat Burchfield back in the day. I believe he said they were collected in the state of Tamalipas[ not sure of spelling] just south of Brownsville. Bill Love wound up with some. I saw some snakes that were 60-75% yellow and orange. To this day they remain the nicest Spilotes I've ever seen or had. Good to see you at the expo...Tom Crutchfield