Açıklama
74600N Coelenterata and Porifera. – 10 Microscope Slides – 1. Sycon, a small marine sponge of the sycon type, l.s. and t.s. on one slide 2. Spongilla, fresh-water sponge, t.s. 3. Euspongia, commercial sponge, t.s. 4. Sponge spicules of different kinds, mixed w.m. 5. Hydra, fresh water polyp, extended and w.m. 6. Hydra, t.s. in different levels 7. Laomedea, w.m. of colony, vegetative and reproductive polyps 8. Obelia, w.m. of medusa 9. Aurelia, jellyfish, w.m. of ephyra 10. Actinia, sea anemone, l.s. and t.s.
