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Key to Aquatic Macroinvertebrates in Utah - No Shell

Use the links in the dropdown menus below to help identify your organism.

1. My Organism Has No Legs

1a. Tentacles, brushes, or 'tails'. 1b. Worm-Like

2. My Organism Has Legs

2a. 10+ Legs 2b. 4 Pair of Legs 2c. 3 Pair of Legs

Back to my Organism Does Not Have a Shell