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Professor Dave Explains
Phylum Annelida Part 3: Oligochaeta and Hirudinea (Segmented Terrestrial/Aquatic Worms and Leeches)
With the marine segmented worms covered, let's get a closer look at Oligochaeta and Hirudinea, which include the familiar earthworms, and the leeches. The anatomy and physiology of the common earthworm is actually quite fascinating,...
Florida State University
Florida State University: Aquatic Earthworm Movie #2
In this interesting video, you will observe an aquatic worm virtually tie itself in a knot in a struggle with a piece of debris. Information about the habitat, diet, and reproduction of annelids is included as well in this site.
Florida State University
Florida State University: Aquatic Earthworm Movie #3
View the bristle-like setae on the body segments of this segmented worm as it attempts to work its way through debris in this interesting, short movie. Background information on annelids is also provided in this site.