Description
An adult crab louse is about 1.3–2 mm long (rather smaller than the body louse and head louse), and can be distinguished from those other species by its almost round body. Another distinguishing feature is that the back two pairs of legs of a crab louse are much thicker than the front legs and are equipped with large claws.
Read more about this topic: Crab Louse
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—Ralph Waldo Emerson (1803–1882)
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—Henry David Thoreau (1817–1862)