Figure 3

Morphology of the brain in Mictocaris halope . Soma clusters, neuropil, and internal structure – click on A and H for interactive 3D models. A,B: Soma clusters (grey) in posterior view (A): with neuropil (yellow) and (B): without neuropil. C, D: Soma clusters in lateral view (C): with and (D): without neuropil. A-D: Arrows mark a dorsal extension of anterodorsal somata (AdS). Double arrowheads mark a lateral extension of lateral somata (LS). Simple arrowhead marks a ventral extension of anteroventral somata. E: Schematic drawing of neuropils (dark yellow) and tracts (grey) in posterior view. F-H: 3D-reconstructions of neuropils and tracts in (F): lateral, (G): dorsal, and (H): anterior view. Neuropils are in yellow; tracts are in grey. F: Olfactory lobe (ON) is shown semitransparent. Brain width about 200 μm (perspective view).