Chamaedrilus glandulosus (Michaelsen, 1888) sensu stricto. A Anterior part of body (immature specimen) in lateral view, indicating chaetal distribution and the size, shape and number of pharyngeal glands B Sperm funnel, ental tract of vas deferens and penial bulb, to show their relative size proportions C Nephridium at septum 8/9, lateral view D Nephridium at septum 10/11, lateral view E Spermatheca F Spermatheca redrawn from Michaelsen (1888). Abbreviations: eg = ectal gland; pb = penial bulb; sa = spermathecal ampulla; sd = spermathecal duct; sf = sperm funnel. Scale bars: 200 µm (A); 50 µm (B–E).