Figure 16 in On four monostiliferous hoplonemerteans, including three new genera and species from Washington state and British Columbia

Figure 16. Nipponnemertes bimaculata (Coe). (a) Transverse sections between 47 and 94 from anterior end of body, showing cerebral organ canal, its wall composed of sensory canal and sac of cerebral sensory organ; (b) thick nerve from posterior portion of dorsal ganglion; (c) cyanophilic glandular mass in posterior portion of cerebral sensory organ; (d) cerebral sensory organ with shallow ventral groove in sac; (e) sensory canal and sac of cerebral sensory organ; (f) sensory canal and ganglionic mass of cerebral sensory organ; (g) eosinophilic glandular mass behind sac of cerebral sensory organ; (h) opening of cerebral organ canal and proboscis insertion. Scale 50 mm (ah). Abbreviations: br, brain; cb, cephalic blood vessel; cg, cephalic groove; cn, cerebral organ canal; cs, cerebral sensory organ; cy, cyanophilic glandular mass; db, dorsal blood vessel; dc, dorsal commissure of brain; dg, dorsal ganglion; eg, eosinophilic glandular mass; es, oesophagus; gm, ganglionic mass; lm, lateral nerve; lv, lateral blood vessel; nd, nerve from dorsal ganglion to cerebral sensory organ; rc, rhynchocoel; rd, rhynchodeum; rg, right cephalic groove; sa, sensory canal of cerebral sensory organ; se, sac of cerebral sensory organ; st, stomach; vg, ventral ganglion; ws, wall of sensory canal of cerebral sensory organ.