Murphy Patternless = your basic patternless leopard gecko
They change color a lot, but at maturity, they lack pattern due to a migration of pigment cells. They 'typical' is solid yellow, with light-grayish tails, non-albino, and possess the typical dark eyes...as babies, you can differentiate them from albino patties very easily due to their dark heads and dark grey patterned blotches/leopard spots on the tail, motled head, and body.
Pat Murphy takes credit for the morph and they were originally (falsely, IMHO) marketed as "Leucistic" leos...the Murphy pattys are "old-school", if you will, in the sense that I believe they emerged in the early 90's before the Tang, Blizz, or even Tremp. albino...Please correct me if I'm wrong here!!