Rhabditia
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Scientific classification | ||||||||
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Subclass Rhabditia, is mostly comprised of parasitic nematodes, though there are some free-living species as well. Phasmids (posterior sensory structures) are well-developed, while Amphids (anterior sensory structures) are poorly developed or absent in this group.
The order of parasitic nematodes Ascaridida is sometimes placed in Rhabditia, and sometimes in subclass Spiruria. This order which includes worms that infect many land mammals and marine mammals.