Skip to main content
Fig. 1 | Frontiers in Zoology

Fig. 1

From: Neural architecture of Galathowenia oculata Zach, 1923 (Oweniidae, Annelida)

Fig. 1

Gross morphology of Galathowenia oculata. a, b G. oculata without its tube (lateral view, ventral side is up). a Body divided into short uniramous, long biramous and short biramous segments bearing notopodial capillaries and neuropodial uncini. b Head collar with ventral slit, eyes and a pigmented arch between eyes. c, d Scanning electron micrographs (SEM) of the head collar, ventral side is to the left. The inner part is lined by cilia and bears the ventral pharyngeal organ. Note the variation of the absence (in c) and presence (in d) of dorsolateral ciliary folds. e SEM of one of the long biramous segments with the lateral glandular field, anterior end is to the left, ventral side is to the bottom. f Detail of glandular field with cilia (arrows) and gland papillae (asterisks), orientation as in (e). g SEM of the posterior-most 4 shortest segments and the pygidium with one dorsal and two ventral lobes, ventral side is to the bottom. h Nuclei labeling with DAPI (cyan) showing lateral view of head collar with ventral pharyngeal organ and an eye. Note that the absence of the cell nuclei indicates the position of the triangular glandular field. bs – short biramous segments, dl – dorsal pygidial lobe, dlf – dorso-lateral folds, e – eye, ea - pigmented arch between eyes, hc – head collar, lgl – lateral glandular field, lbs – long biramous segments, nc – notopodial capillaries, nu – neuropodial uncini, py – pygidium, tgl – triangular glandular field, us - short uniramous segments, vl – ventral pygidial lobes, vpo – ventral pharyngeal organ, vs – ventral slit

Back to article page