FIGURE 17 in Four palaeonemerteans (Nemertea: Anopla) from a tidal flat in middle Honshu, Japan

FIGURE 17. Hubrechtella ijimai (Takakura, 1922) comb. nov., ZIHU­3122, female. A, transverse section through the pre­cerebral region; arrowhead indicates innervation from the subepidermal neuroglandular layer to the rhynchodaeum (RD). B, transverse section near the proboscis insertion, showing the inner (IB) and outer (OB) basement membranes, the former is about to disappear, while the latter become thicker, posteriorly. C, transverse section through the foregut region showing the arrangement of the neuro­fibrous layer (NF) against the basement membrane (BM). D, transverse section through the intestinal region showing the arrangement of the neuro­fibrous layer (NF) against the basement membrane (BM). E, transverse section through the pre­cerebral region; arrowhead indicates a connective tissue process from the inner to the outer basement membranes. AG, acidophilic glandular cell; BG, basophilic glandular cell; CL, cephalic blood lacuna; DM, diagonal muscle layer; EP, epidermis; RC, rhynchocoel; UD, upper mid­dorsal nerve.