Figure 3 in Proboscis sensory cells in Nemertea: comparative morphology and phylogenetic implications

Figure 3. Confocal laser scanning micrographs of the everted (A, C, D) and inverted (B, E–L) proboscis. Red/white – phalloidin-positive (ph-p); green – acetylated α-tubulin-like immunoreactivity (tub-lir). Tub-lir has the strongest signals in the cilia and axons of sensory cells and in the basiepithelial nerve plexus. A, Hubrechtella juliae, substack of the transverse sections showing the receptor processes (black arrowheads) and axons (white arrowheads) of sensory cells. B, Cephalothrix cf. simula, substack of the longitudinal sections showing the receptor processes of small (black asterisks) and large (white arrowheads) sensory cells. C, Nipponomicrura uchidai, substack of the transverse sections showing sensory cells (arrowheads). D, N. uchidai, z-projection of the transverse sections showing the collars of sensory cells. E, Cephalothrix iwatai, substack of the longitudinal sections showing the collars of small (black arrowheads) and large (white arrowheads) sensory cells. F, Cephalothrix sp., substack of the longitudinal sections showing the collars of large sensory cells (arrowheads). G, Cephalothrix filiformis sensu Iwata, substack of the longitudinal sections showing the collars of the large