Fig. 7
From: Shell field morphogenesis in the polyplacophoran mollusk Acanthochitona rubrolineata
Schematic diagrams showing shell field morphogenesis in A. rubrolineata. Different parts of the shell field can be recognized based on gene expression patterns or aggregated F-actin. The organization of the shell field is generally established at 24 hpf, including the girdle field comprising the inner and outer girdle fields and the central region showing alternatively arranged plate fields and ridges