Figure 4 in Macro- and microscopic morphology of the reproductive system of Leptinaria unilamellata (d'Orbigny, 1835) (Mollusca: Pulmonata: Subulinidae)

Figure 4. (A) Cells of the male germinative lineage, spermatozoa (asterisk), spermatids (arrow) and primary spermatocytes (spe1). (B) Detail of spermatids (arrow). (C) Detail of secondary spermatocytes (spe2); nearby is an oocyte in vitellogenesis (arrow head). (D) Detail of spermatozoa arranged in groups associated with Sertoli cells. Haematoxylin-eosin stained. Scale bar = 50 µm.