CHARACTER N RANGE RANGE RANGE MEAN SD Egg bare diameter 19 78.9 – 103.1 90.7 7.6 Egg full diameter 19 134.0 – 161.7 148.6 8.2 Process height 60 25.2 – 36.6 30.9 2.6 Process base width 60 22.5 – 39.6 28.2 3.4 Process base/height ratio 60 67% – 125% 92% 12% Inter-process distance 60 2.3 – 6.5 3.9 0.9 Number of processes on the egg circumference 19 9 – 12 10.3 0.7