Aquatic Worms Copyright Randall Schietzelt & Harper College Aquatic roundworm Nematode species Aquatic roundworm Nematode species Aquatic roundworm Nematode species Aquatic roundworm Nematode species Aeolosoma sp. Detritivore Pollution Indicator Aquatic Worm Aeolosoma species Detritivore Pollution indicator species Aquatic Worm Aeolosoma species Detritivore Pollution indicator species Aquatic Worm Branchiobdellid species Commensal on crayfish Aquatic Worm Branchiobdellid species Commensal on crayfish Aquatic Worm Chaetogaster species Detritivore Pollution indicator species Aquatic Worm Chaetogaster species Detritivore Pollution indicator species Aquatic Worm Dero furcatus Detritivore Pollution indicator species Aquatic Worm Dero species Detritivore Pollution indicator species Aquatic worm species Detritivore Pollution indicator species Aquatic worm species Detritivore Pollution indicator species Aquatic Worm, tail Dero furcatus Detritivore Pollution indicator species Aquatic Worm Branchiura sowerebyi Detritivore Brown Planaria Dugesia dorotocephala Predator or scavenger Moderate pollution indicator species Brown Planaria Dugesia dorotocephala Predator or scavenger Moderate pollution indicator species Brown Planaria, head Dugesia dorotocephala Predator or scavenger Moderate pollution indicator species Caddis Fly Larvae Hydropsyche species Moderate pollution indicator species Flatworm Castrada species Predator or scavenger Mild pollution indicator species Flatworm Gyratrix hermaphroditus Predator or scavenger Mild pollution indicator species Flatworm Gyratrix hermaphroditus Predator or scavenger Mild pollution indicator species Medicinal Leech Hirudo verbena Parasite Pollution indicator species Leech species, head Stream species Pollution indicator species Leech species Pond species Pollution indicator species Leech species Parasite Pollution indicator species Leech species Stream species Pollution indicator species Leech species, head Stream species Pollution indicator species Leech sp. Carnivore or Parasite Pollution Indicator Leech species Microscopic view Pollution indicator species Leech Sp. Lake Species Pollution Indicator Microturbellarian Flatworm species Predator or scavenger Tiger Planaria Dugesia tigrina Predator or scavenger Moderate pollution indicator species Tiger Planaria Dugesia tigrina Predator or scavenger Moderate pollution indicator species Tiger Planaria Dugesia tigrina Predator or scavenger Moderate pollution indicator species

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