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Figure 7 | BMC Developmental Biology

Figure 7

From: Organogenesis during budding and lophophoral morphology of Hislopia malayensis Annandale, 1916 (Bryozoa, Ctenostomata)

Figure 7

Budding stage 4 of Hislopia malayensis. Because of their thinness, the peritoneal lining of the digestive tract and the lophophoral base were not captured. (a) View from the basal side of the bud. The tentacle sheath and vestibular wall are displayed transparently. (b) View from the distal side of the bud showing the digestive tract as well as the developing lophophore and ganglion. The asterisk marks the opening of the ganglion towards the mouth opening. (c) View from the basal side showing the digestive tract and epidermal layer of the lophophore anlage transparently. (d) View from the distal side showing the epidermal layer of the lophophore anlage transparently. Abbreviations: a - anus, at - atrium, cae - caecum, con - circum-oral nerve trunks, dt - developing tentacles, es - esophagus, int - intestine, itp - intertentacular pits, lc - lophophoral ring coelom, mo - mouth opening, ph - pharynx, pv - proventiculus, ts - tentacle sheath, v - vestibulum, vw - vestibular wall. Colors: blue - lophophore anlage, crimson - lophophoral ring coelom, green - gut anlage, turquoise - vestibular wall, yellow - nervous system. Scale bar = 100 μm.

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