FIGURE 12. Mulinia exalbida, A–B in Revision of the Magellanic Mactridae Lamarck, 1809 (Bivalvia: Heterodonta)

FIGURE 12. Mulinia exalbida, A–B: hinge detailed according to the nomenclature developed by Bernard and Munier Chalmas, scale bar = 1cm; C–D: Ultrastructure of the shell, C: inner layer with the cross lamellar complex; D: outer layer showing cross lamellar structure, scale bar = 100 µm.