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Common name: Hairybellies
Name derivation: "stomach hair"
Number of Orders: 2
Number of Families: 18
Number of Genus: 71
Number of known Species: 887
Earliest Fossil Record: None
Habitat: Marine, Freshwater, Terrestrial
Size Range: 0.07 mm to 4 mm
Notes: Based on Catalogue of Life as of July 2024