FIGURE 5. R. klamathensis n in Rhynchelmis subgenus Sutroa Eisen new rank, with two new species from western North America (Annelida, Clitellata, Lumbriculidae)

FIGURE 5. R. klamathensis n. sp. from Upper Klamath Lake, reproductive organs; sagittal sections (A–D, F), transverse sections (E, G–I). A. Spermathecal bulb, duct, and ampulla joining the gut. B. Spermathecal bulb and duct, with part of a diverticulum. C. Penial bulb and sac, with a retracted penis. D–E. Partially retracted penes, within penial bulbs. F. Atrium, vas deferens and posterior male funnel at 10/11. G. Ectal part of atrium in X, with vasa deferentia free in sperm sac. H. Ental part of atrium with vasa deferentia free within prostate layer; the small, anterior vas deferens approaching the atrium. I. Atrium near the ental end; the posterior vas deferens is approaching the atrium. Scale bars (A–F) 200 Μm, (G–I) 100 Μm.