mesofauna
noun
meso·fauna
"+
: very small invertebrate animals (such as mites, nematodes, or centipedes) that are usually .1 mm to 2 mm (.004 to .08 inch) in length
Note: The terms macrofauna , mesofauna, and microfauna are used especially in describing those organisms living in or on soil or benthic sediment.
compare meiofauna
mesofaunal
adjective
mesofaunal composition
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Merriam-Webster unabridged
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