- 1. Lumbricus, spermatozoa in various stages of development, smear Lieder_5412d
- 2. Helix pomatia, hermaphrodite gland (ovotestis) t.s., ova and spermatozoa Lieder_5606d
- 3. Testis of frog t.s. showing spermatogenesis and mature spermatozoa Lieder_5915d
- 4. Spermatozoa of rabbit, smear Lieder_5972d
- 5. Spermatozoa, human, smear Lieder_70510e
- 6. Helix pomatia, hermaphrodite gland (ovotestis), with ova and spermatozoa, t.s. Lieder_Mo168d