FIGURE 4 in Two new Mesenchytraeus species (Annelida: Clitellata: Enchytraeidae) from Changbai Mountain, China

FIGURE 4. Micrographs of Mesenchytraeus liberothecus sp. nov., from fixed and stained specimens. A. Brain. B. Pattern of clitellar glands. C. Sperm funnel. D. Male organ in clitellar region. E. Spermathecae. F. Coelomocytes. G. Sperm sac. H. Sperm bundles. Scale bars: A–H 50 µm. Abbreviations: ag, atrial glands; at, atrium; br, brain; bsf, body of sperm funnel; dt, diverticulum; ecd, spermathecal ectal duct; gr, granulocyte; hs, head of spermatozoa; hy, hyalocyte; sa, spermathecal ampulla.