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Fig. 5. Dye-labeled cells in Sepia officinalis. Lateral (A) and medial (B)
sagittal sections of the posterior subesophageal mass (PSEM) showing
distribution of labeled cells across PSEM lobes (posterior chromatophore lobe,
PCL; fin lobe, FL; palliovisceral lobe, PVL; magnocellular lobe, MCL, covered
by inset in A; posterior posterior chromatophore lobe, PPCL, not
present in sections shown but approximate location is indicated by an asterisk
in A). Arrows point to individual labeled cells. (C,D) Higher magnification of
two separate clusters of labeled cells. Insets highlight locations (red boxes)
where photographs were taken. Insets A and B show an outline of an entire
cephalopod brain; insets C and D are outlines of the PSEM only. A, anterior;
P, posterior. Scale bars, 500 µm (A,B); 50 µm (C,D).
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