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Fig. 8 | BMC Developmental Biology

Fig. 8

From: Mantle margin morphogenesis in Nodipecten nodosus (Mollusca: Bivalvia): new insights into the development and the roles of bivalve pallial folds

Fig. 8

Schematic representation of the postmetamorphic mantle margin in Nodipecten nodosus. a Schematic representation of a cross-section through the animal body, ventral to the top (foot points upwards). b Detail of the inset indicated in a. The two-folded condition includes the outer and inner mantle folds, which correspond to the distal and proximal regions of the larval mantle margin, respectively. The periostracum-forming zone ends up on the bottom of a groove between the folds. Abbreviations: drm, distal region of the mantle margin; fo, foot; gi, gill; if, inner mantle fold; ma, mantle; of, outer mantle fold; pe, periostracum; pfz, periostracum-forming zone; pg, periostracal groove; prm, proximal region of the mantle margin; sh, shell

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