Hyper Xanthic
The Hyper Xanthic Leopard Gecko is a line bred morph known for it's near florescent yellow coloration and high marking contrast. These geckos exhibit an excessive amount of yellow on their bodies and the best examples also have yellow pigments extended into their tails.
This morph was first pioneered by JMG Reptile in 2002 after hatching an unusually colored leopard gecko and has been available to the public since the first release in 2008.