Fig. 11 in The metatrochophore of a deep-sea hydrothermal vent vestimentiferan (Polychaeta: Siboglinidae)

Fig. 11 Midgut (a–d), hindgut (d, e), anus (f); specimen #308. a, d Midgut cells with large vesicles (ve) basally and nuclei (n) apically close to the microvilli (mv), and cilia (ci) bordering the gut lumen (lu); hindgut (hg); b bacteria (ba) and diatom shell (ds) in gut lumen; c bacteria (ba) and myelin structures (my) suggesting degradation in midgut cell; e hindgut cell with nucleus (n) and dense ciliary border (ci); f terminal anus (a)