Fig. 6
From: Neural architecture of Galathowenia oculata Zach, 1923 (Oweniidae, Annelida)
FMRFamide-like immunoreactive (−lir) nervous system in the trunk and pygidium of Galathowenia oculata. Anti-FMRFamide-lir (yellow), nuclei labeling with DAPI (blue), maximum projections, whole-mount specimens. a Ventral nervous system of the posterior-most segments and pygidium, ventrolateral view, anterior is to the top. Note the immunocytochemically (ICC) positive somata in the ventral and ventrolateral sides of the pygidium. b Pygidial ICC-positive somata accumulations, dorsolateral view of posterior-most chaetigers, anterior to the right. c Distribution of the ICC-positive somata associated with the ventral nerve cord, median portion of body, lateral view, anterior to the left. d Dorsal neurite bundles of the posterior-most segments, dorsal view, anterior to the top. e Ventral nerve cord and main peripheral longitudinal neurite bundles, left lateral view of anterior portion of body, anterior to the left. f ICC-positive somata associated with the ventral nerve cord, median portion of body, lateral view, anterior to the left. g Loose condition of the main dorsal neurite bundle in anterior segments, dorsolateral view, anterior to the bottom. h Main dorsal neurite bundle, serially arranged circular neurite bundles with associated bipolar cells and longitudinal neurites of the neurite plexus, dorsal view, anterior to the bottom. i Lateral view of main dorsal and lateral neurite bundles in the anterior body region, anterior to the left. Note the bipolar cells associated with the serially arranged circular neurite bundles. j Circular fibers of posterior-most segments, lateral view, anterior to the left. bc - bipolar cells, bs – short biramous segments, dn – main dorsal neurite bundle, dsa – ICC-positive somata accumulation in dorsal pygidial lobe, fcn – FMRF-amide-lir serially arranged circular neurite bundles, nc – notopodia capillaries, nu – neuropodial uncini, lgl – autofluorescing glands of lateral band, lfp – plexus of longitudinal neurites along main dorsal neurite bundle, ln – main lateral longitudinal neurite bundles, pa – ICC-positive somata accumulations in segments, ps1-2 – ICC-positive somata of ventral and ventrolateral sides of pygidium, py – pygidium, pyn – pygidial neurite bundles interconnecting the ventral and dorsal neurite bundles, uc – unipolar cells, vl – ventral pygidial lobes, vnc – ventral nerve cord, vsa – ICC-positive somata accumulations in ventral pygidial lobes