FIGURE 6 in Four palaeonemerteans (Nemertea: Anopla) from a tidal flat in middle Honshu, Japan

FIGURE 6. Carinina plecta sp. nov. Holotype, female, ZIHU­3123. A, tangential section of the body wall showing diagonal muscles (DM). B, transverse section through the anterior portion of the ventral cerebral commissure (VC) showing horizontal transverse muscles below the rhynchocoel (indicated by the arrowhead). C, transverse section through the vicinity of the mouth region; black arrowheads indicate horizontal transverse muscle fibres, white arrowheads indicate branches of the buccal nerves. D, sagittal section through the intestinal region to show one of the aberrantly thick muscle fibres. BC, buccal circular muscle; BN, buccal nerve; BW, buccal wall; CL, cephalic blood lacuna; G1, acid­fuchsin­positive glandular cell; LB, longitudinal muscles below horizontal transverse muscles; LL, lateral blood lacuna; LM, body­wall longitudinal muscle layer; LN, lateral nerve cord; PR, proboscis; RC, rhynchocoel; RW, rhynchocoel wall.