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Earthworm Anatomy
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Description: The earthworms are also known as megadriles, in the families Tubificidae, Lumbriculidae, and Enchytraeidae. Earthworms have a pair of kidneys to every segment, each consisting of a coiled tube wrapped in a mass of small blood vessels, and at its inner end communicating with the body cavity by means of a funnel-shaped opening. Here is a diagram of an earthworm kidney., showing (b) blood vessel, (f) funnel opening into body cavity, (o) outer opening, (s)septum, (w) body wall
Source: Winchell, Alexander Sketches of Creation (New York: Harper & Brothers, 1870) 74
Keywords: worm, earthworms, megadriles, Tubificidae, Lumbriculidae, Enchytraeidae
Copyright: 2009, Florida Center for Instructional Technology. See license.
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