Fig. 3 in Lost in a taxonomic Bermuda Triangle: comparative 3D-microanatomy of cryptic mesopsammic Solenogastres (Mollusca)

Fig. 3 TEM-micrographs of dondersiid incertae sedis D2. a Cross-section through pharynx, buccal, and pedal ganglia. Boxes indicate respective area of closeup micrographs. Arrowhead points to epidermal glandular cell. b Detail of the integument showing the heterogeneous cuticle containing putative endocuticular bacteriocytes, voids of dissolved sclerites (asterisks), and an epidermal glandular cell. c Pedal ganglia and enclosed pedal commissural sac with three central cells in the lumen. Central membrane of pedal commissural sac is indicated by arrowhead. c' Section posterior to c; pedal ganglia with ventral pedal commissure and posterior end of the lumen of the pedal commissural sac (asterisk). Abbreviations: b putative endocuticular bacteria, bg buccal ganglion, cc central cell, ct cuticle, dc dorsal caecum of midgut, fgp foregut gland pouch, ft cilia of foot, ln lateral nerve cord, n nucleus of epidermal glandular cell, phgl3 pharyngeal gland 3, pg pedal ganglion, rt radula tooth, sgl sole gland, v vacuole, vpcm ventral pedal commissure