Fig. 2 in Untangling the diversity and evolution of tentacles in scallops, oysters, and their relatives (Bivalvia: Pteriomorphia)

Fig. 2 Schematic representations of bivalve body axes and position relative to substrate. The midsagittal plane, i.e., dividing the body in two halves (left and right), is represented by translucent rectangles. Lateral view in a and anterior view in b– d. a Lateral view of the left side of the bivalve body after removal of the left valve. b Transverse section through the bivalve body. c Midsagittal plane perpendicular to the substrate. d Midsagittal plane nearly parallel to the substrate