Mode of Genetic Inheritance: Recessive
Morph Type: Single Recessive Mutation
The first description of this corn snake pattern mutation was published by the late Dr. H. Bernard Bechtel in the 1980s. His breeding trials demonstrated the heritability of this mutation to be simple recessive. The distinguishing feature of those is belly checkering. Good Motleys have an orderly and contiguous pattern of spots down the dorsum that represent spaces in what appears to be a continuous, wide stripe of color running from the neck tail-ward. The size, shape, location, organization, and number of circular pattern interruptions on the back define the grade of individuals, but until recently, the one pattern distinction we could rely upon was that of having no checkers on their belly. Lately, we’re seeing Motleys with some black checkering, but it’s random and sparse. I suspect that one day we’ll see Motleys with quite a bit of belly checkering. In fact, certain genetic compounds of Motley have somewhat reliable belly markings (i.e. Sunglow Motley and Lavender Motley).