FIGURE 15. Darina solenoides, A–B in Revision of the Magellanic Mactridae Lamarck, 1809 (Bivalvia: Heterodonta)

FIGURE 15. Darina solenoides, A–B: hinge detailed according to the nomenclature developed by Bernard and Munier Chalmas, scale bar = 0,5 cm; C: SEM picture of the notorious ventrally developed chondrophore (ch), scale bar = 1 mm; D: SEM picture of the ultrastructure of the shell, scale bar = 100 µm.