Fig. 5

Structure of IV, V, VI and partial VII, showing retractor muscles, pharyngeal glands, spermatheca, esophagus, vessels, and ventral nerve cord (all std-in-HE except A and B). A. IV, V and partial VI (std-in-Acl), lateral view. B. IV, V, VI and partial VII (std-in-Acl), dorsal view. C. Merge of lateral and ventral vessels in IV, ventral view. D. IV, transversal section, anterior view. E. partial IV, V and partial VI, longitudinal section, lateral view. F. Ampulla of spermatheca, dorsal view. G. V, transversal section, anterior view. H. VI and VII, longitudinal section, lateral view. I. VI and partial VII, showing the connection between dorsal lobes of pharyngeal glands, dorsal view. ac, anucleate coelomocyte; bw, body wall; amp, ampulla of spermatheca; chl, chloragogen cell; coc, coelomic cavity; coe, coelomocyte; con, connection between dorsal lobes of pharyngeal glands in VI; dv, dorsal vessel; eso, esophagus; me, muscular epidermis around the ectal orifice; int, intestine; isf, intersegmental furrow; lv, lateral vessel; miv, microvillus; ne, nephridium; pen, peptonephridium; phg, pharyngeal gland; rm, retractor muscle; seg, spermathecal ectal gland; sep, septum; spe, spermatheca; str, strand; vnc, ventral nerve cord; vv, ventral vessel