Figure 9

Morphology of the brain in Tethysbaena argentarii . Soma clusters, neuropil, and internal structure – click on A and G for interactive 3D models. A: Soma clusters (grey) and neuropil (yellow) in anteroventral view. B, C: Soma clusters in posterodorsal view (B): with and (C): without neuropil. D, E: Soma clusters in lateral view (D): without and (E): with neuropil. A-E: Arrows mark the large posterolateral extensions of lateral somata (LS), which embrace the posterior accessory neuropils (PAN, only depicted in B and E). F: Schematic drawing of neuropils (dark yellow) and tracts (grey) in posterior view. G: 3D-reconstructions of neuropils and tracts in lateral view. Neuropils are in yellow; tracts are in grey. Brain width about 200 μm.