FIGURE 22 in Four palaeonemerteans (Nemertea: Anopla) from a tidal flat in middle Honshu, Japan

FIGURE 22. Hubrechtella kimuraorum sp. nov. Holotype, male, ZIHU­3127. A, transverse section through the pre­cerebral region; white arrowhead indicates a dorsoventral muscle fibre in the cephalic lacuna (CL), black arrowheads indicate innervation from the subepidermal neuro­glandular layer to the rhynchodaeum (RD). B, transverse section through the first region of the proboscis. C, transverse section through the second region of the proboscis; arrowhead indicates an acidophilic spherical body. D, transverse section through the third region of the proboscis; arrowheads indicate acidophilic spherules. PE, proboscis epithelium; PI, proboscis inner circular muscle layer; PL, proboscis longitudinal muscle layer; PN, nervous layer of proboscis; PO, proboscis outer circular muscle layer.