Figures 20–27 in Redescription of Valdivianemertes valdiviae (Bürger, 1909) (Nemertea: Hoplonemertea: Cratenemertidae) and designation of neotype

Figures 20–27. (20) Frontal organ; (21) pre-cerebral vascular anastomosis; (22) vascular loop vessels; (23) rhynchostomodaeum, vascular loop vessels; (24) rhynchodaeal sphincter, oesophagus, cephalic glands; (25) mid-brain, anterior cerebral organ, dorso-lateral nerves; (26) cerebral organ, cerebral organ nerve, myofibrillae; (27) nephridial region, splanchnic nerves, vascular plug.