- 1. Hydra, fresh water polyp, t.s. with ectoderm and entoderm Lieder_4431e
- 2. Hydra with testis t.s., sexual reproduction Lieder_4488e
- 3. Hydra with ovaries t.s., sexual reproduction Lieder_4489e
- 4. Komplet - The Hydra, 8 mikro. preparatov Lieder_5350
- 5. Hydra with one or more buds w.m. Lieder_5352f
- 6. Hydra, t.s. through body in different levels showing ectoderm with nematocysts, supporting Lieder_5353d
- 7. Hydra with testis t.s. Lieder_5355e
- 8. Hydra with ovaries t.s. Lieder_5356e
- 9. Hydra, isolated cells showing the different cell types, nematocysts Lieder_5357d
- 10. Hydra with food in digestive cavity, t.s. Lieder_5358d
- 11. Hydra, w.m. or section Lieder_7008d
- 12. Hydra, fresh water polyp w.m. Lieder_74601e
- 13. Hydra, fresh water polyp t.s. Lieder_74603d
- 14. Hydra, w.m. (Pelmatohydra) Lieder_75708e
- 15. Hydractinia, w.m. Lieder_75815d
- 16. CD112. Feeding Organs and Metabolism in the Human Body. Proteins, carbohydrates and fats as Lieder_CD112
- 17. Hydra, extended specimen carefully stained for general body study, w.m. showing all details Lieder_Co111e
- 18. Hydra, t.s. through the body in different levels showing ectoderm with nematocysts, supporting Lieder_Co113d
- 19. Hydra with male gonad (testis), w.m. * Lieder_Co1151f
- 20. Hydra with female gonad (ovary), w.m. * Lieder_Co1161g
- 21. Hydra, isolated cells w.m. showing the different cell types, nematocysts Lieder_Co117d
- 22. Hydra with food in the digestive cavity, t.s. through body Lieder_Co119d
- 23. Obelia hydroid, colony of polyps with hydrants and gonothecae, w.m. for general study Lieder_Co211d
- 24. Ožigalkarji, Hydra w.m. 1003