FIGURE 6. Ammonicera mexicana sp. nov. A–C. Holotype, apical views; A. General view; B. Detail of the protoconch (interpreted boundary between protoconch and teleoconch at arrowhead); C. Coloration; D–E. Paratype 1, umbilical views; D. General view; E. Detail of the protoconch; F. Paratype 2, dorsal view; G. Paratype 3, apertural view. Scale bars: A, C, D, F, G = 0.2 mm; B, E = 0.1 mm.