nature & science Other Invertebrates (corals, sponges, worms, etc.) Home Accessibility Activities Contact Us Educational Programs Facts For Kids In Depth Management Docs Nature & Science Plan Your Visit Special Events Bookstore » Employment » Volunteer » Search » Overview Animals Amphibians Birds Crustaceans Fish Insects, Spiders, Centipedes, Millipedes Mammals Mollusks Other Invertebrates (corals, sponges, worms, etc.) Reptiles Plants Environmental Factors Natural Features and Ecosystems Planaria in a cave stream (NPS Photo) Common organisms living within the sediments of Mammoth Cave streams are nematodes or roundworms (undescribed), copepods (Maraenobiotus, Moraria, Nitocra, and Parastenocaris), tardigrades (Macrobiotus), and oligochaete worms (Aeolosoma).

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