FIGURE 5 in On spermatophore-producing aquatic microdrile oligochaetes (Annelida: Clitellata)

FIGURE 5. Uktena riparia Fend, Rodriguez & Lenat, 2015. A. Ventral side showing 2 stained spermatophores attached to the base of a protruded copulatory organ. B. Detail of the spermatophore protruding from male pore, and genital chaetae. C. Copulatory organ and associated gland within the spermathecal bursa, with spermatophores attached to its base. D. Male bursa with showing one of the several glandular organs. E. Detail of the atrium showing folded epithelium and long prostatic glands. F. Spermatophore forming in the atrial duct. G. Sperm lined up along the epithelium of the spermathecal ampulla. A,C,E from Fend's coll.; D,F,G from MNCN collection; all from the type locality. Abbreviations: a atrium, co copulatory organ, gc genital chaetae, gl gland, mb male bursa, mp male pore, pr prostatic cells, sb spermathecal bursa, sph spermatophore, ssg secretory surface of the gland.