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Aquatic Macroinvertebrates. A B. mayfly. midge. Caddisfly. Air breathing snail. How do you know?. Giant water bug. dragonfly. Blackfly larvae. Gilled Snail. How do you know?. Water mite. Water Penny. Whirligig beetle. Stonefly.
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Air breathing snail • How do you know?
Gilled Snail • How do you know?
Leech swollen with blood on previous slide, not swollen on this one!