- 1. Schistosoma mansoni, section of infected snail liver showing redia and cercaria * Lieder_3919g
- 2. Haliotis, marine snail, pinhole camera eye l.s. Lieder_4455f
- 3. Helix, snail, eye l.s. lens, cornea, pigmented and visual cells Lieder_4456e
- 4. Komplet - The Snail (Helix pomatia), 12 mikro. preparatov Lieder_5600
- 5. Snail, typical t.s. of small specimen for general study Lieder_73728d
- 6. Schistosoma mansoni, section through infected snail liver showing cercaria Lieder_Py227g
- 7. Schistosoma mansoni, section through snail liver not infected, for comparison Lieder_Py228f
- 8. Haliotis, marine snail, l.s. of a simple pinhole camera eye * Lieder_Mo185f
- 9. Snail, typical t.s. of small specimen for general study Lieder_Mo151d
- 10. Snail, sagittal l.s. through the head showing the radula in situ Lieder_Mo152d
- 11. Snail, radula w.m. Lieder_Mo153e
- 12. Helix pomatia, snail, foot sagittal l.s. Lieder_Mo161c