FIGURE 2. R in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)

FIGURE 2. R. tetratheca. (A) curled longitudinal muscles, oblique muscles. (B) ventral glands in an anterior segment. (C) septal sac on 9/10. (D) nephridial duct following a lateral blood vessel. (E) accessory organ in IX. (F) detail of accessory organ. (G, H) vas deferens and atrium within sperm sac. (I) vasa deferentia joining atrium entally. (J) ectal end of atrium, male funnel on 10/11, and vas deferens. (K) male pore. (L) spermathecal duct entering ampulla (right) and diverticulum (left). (A, B, D, G, K transverse sections, C, E, F, H–J, L sagittal sections). Scale bars: A–E, H–L = 200 μm; F–G = 100 μm.