These are mainly earthworms and hard-bodied arthropods such as insects, millipedes, centipedes and arachnids. You don't need a microscope to see these animals...
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Isopods | |
Mole cricket |
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Scorpions | |
Earwigs |
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Spiders | |
Fly larvae |
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Centipedes | |
Termites |
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Millipedes | |
Cockroaches |
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Ants | |
Antlions |
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Earthworms | |
Snails & slugs |
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Beetles |
Small soil invertebrates. These are animals that are about 1-3 mm long. Springtails, mites, nematode worms and pseudoscorpions. You need a low powered stereo-microscope to see these animals properly.
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Springtails |  |
Nematodes |
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Mites |  |
Pseudoscorpions |
Very small soil invertebrates. These are the single-celled animals, the Protozoa. You need a compound microscope to see these animals clearly.
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Protozoa |