Variable within this large range but generally rather flattened with strongly callous and deeply pitted margins, and some�what produced extremities. Base convex with very strong teeth. Dorsum brown or brown-green with profuse small white dots, a few sometimes ocellated and some arger brown spots; margins cream with some brown dots and dashes; usually a rather square, more or less colorful purple brown blotch halfway along each margin wh,ch may spread well on to the base.