The multimedia microscope slide packages for invertebrates come in a special cardboard box with an explanatory brochure and plastic box of 6 microscope slides: • Araneus, spider, leg with comb w.m. • Earthworm (Lumbricus), t.s. showing intestine, body wall, muscles • Hydra, fresh-water polyp, t.s. of body • Marine sponge (Grantia), t.s. • Starfish (Asterias), arm with tube feet, t.s. • Water flea (Daphnia), small fresh water crustaceans w.m.