Anarthropoda is one of the two great divisions (the Arthropoda being the other) of the Annulosa, or ringed animals, in which there are no articulated appendages. It includes the leeches, earthworms, tube-worms, etc. Research Anarthropoda
Arthropoda is one of the two primary divisions (Anarthropoda being the other) into which modern naturalists have divided the sub-kingdom Annulosa, having the body composed of a series of segments, some always being provided with articulated appendages. The division comprises Crustaceans, Spiders, Scorpions, Centipedes, and Insects. Research Arthropoda
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Matt and Leela Probert
Abbreviations
Research Anarthropoda
