Fig. 3
From: DNA barcoding reveals a cryptic nemertean invasion in Atlantic and Mediterranean waters
Cephalothrix cf. simula. Transverse sections through (a) cerebral region, showing the unpaired section of the buccal nerve (BN), (b) buccal region, showing the arrangement of the branched portion of the buccal nerve, (c) intestinal region, showing the muscle plate (MP) and the rhynchocoel wall (RW), (d) intestinal region, showing the arrangement of an incipient ovary (OV). BM basal membrane, CL cephalic blood lacuna, CM circular muscle layer, DG dorsal ganglion, EP epidermis, FG foregut, IN intestine, LM body wall longitudinal muscle layer, LN lateral nerve cord, LV lateral blood vessel, PR proboscis, RC rhynchocoel, RV rhynchocoel vessel, VG ventral ganglion. Scale bars 100 μm