FIG. 2. Leucistic and normal Rhabdophis tigrinus individuals observed in the survey. A, Leucistic R. tigrinus individual showing an overall yellowish body color. B, Close-up of the head, showing that the originally black spots appear pink and that the eye color is normal. C, Normal R. tigrinus individual exhibiting a greenish overall body color. D, Close-up of the head, showing red and black spots on the neck and a black tongue (The red coloring of the lips appears to be the result of injury and scarring). Photos by Seung-Min Park.