- 1. Hydra with testis t.s., sexual reproduction Lieder_4488e
- 2. Frog (Rana), testis t.s. showing spermatogenesis Lieder_4493d
- 3. Hydra with testis t.s. Lieder_5355e
- 4. Astacus fluviatilis, testis t.s., spermatogenesis, cell division stages Lieder_5712e
- 5. Branchiostoma, region of liver and testis t.s. Lieder_5805d
- 6. Lumbricus, testis t.s. * Lieder_An141f
- 7. Astacus, testis t.s. with spermatogenesis Lieder_Cr139e
- 8. Astacus, testis t.s. specially selected for demonstration of meiosis and mitosis, carefully Lieder_Cr1391g
- 9. Cyprinus, testis t.s. Lieder_Pi152c
- 10. Salamandra, testis t.s., usually many meiotic and mitotic stages can be observed Lieder_Am146e