Levi, Herbert W. Museum of Comparative Zoology, Agassiz Museum, Harvard University, Cambridge, Massachusetts.
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An order of the class Arachnida, whose members are commonly known as the harvestmen or daddy longlegs. The order Opiliones is sometimes referred to as Phalangida. More than 6400 species are known. They are common in temperate and tropical climates. Most are red, brown, or black, and they are 5–20 mm (0.2–0.8 in.) in length, although a few are only 1–2 mm (0.04–0.08 in.). Some large tropical species have bright iridescent colors and elaborate spines. See also: Arachnida
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