Fig. 9

Structure of XIV, XV, and segments thereafter, largely showing chloragogen cells, coelomic cavity, intestine, intestinal parietal vessel and other vessels, lateral and ventral chaetal bundles or sacs, nephridia, septa and ventral nerve cord (all std-in-HE except B). A. XIV and XV, lateral view. B. Segments after clitellum (mod-in-Hm), lateral view. C. XIV, longitudinal section, lateral view. D. A segment after clitellum, largely showing septum, transversal section, anterior view. E and F. A segment after clitellum, largely showing intestinal partial vessels and 3 chaetae in lateral chaetal bundle, transversal sections, anterior view. bw, body wall; chl, chloragogen cell; coc, coelomic cavity; coe, coelomocyte; inl, intestinal lumen; int, intestine; ipc, intestinal parietal cell; ipv, intestinal parietal vessel; lcb, lateral chaetal bundle; lcs, lateral chaetal sac; meg, mature egg; miv, microvillus; mu, muscle; ne, nephridium; sep, septum; vcb, ventral chaetal bundle; vcs, ventral chaetal sac; vnc, ventral nerve cord; vv, ventral vessel