Twenty-two different types of organisms are included in this set designed to cover the anatomy laboratory requirements in most high schools. Includes 10 of each specimen. 10 beetles, 10 butterflies, 10 centipedes, 10 crabs, 10 crayfish, 10 earthworms, 10 frogs, 10 grasshoppers, 10 honey bees, 10 Hydra, 10 jellyfish, 10 millipedes, 10 perch, 10 sea naemones, 10 sea urchins, 10 snails, 10 spiders, 10 sponges, 10 starfish, 10 tadpoles, 10 termites.