What is Hexadactyly?

Hexapodism: Hexapodism is the theory of Abhidharma's collection of different feet, Abhidharma's theory of footwork, Abhidhamma's theory of footwork, and Abhidhamma Abbreviations of the six Buddhist theories on "On", "On Abhidharma Footwear Theory", and "On Abhidharma Footwear Theory".