Learn to identify these macroinvertebrates and other creatures that live in Missouri streams.
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Click here for images of Missouri River Macroinvertebrates

Pollution Sensitive

Mayfly Nymph

Mayfly mayfly

Stonefly Nymph

stonefly Stonefly Stonefly Stonefly

Caddisfly Larva

caddis caddisfly

Gilled Snails

snail

Dobsonfly Larva (Hellgrammites)

hellgrammite

Water Penny Larva

water penny

Riffle Beetle (larva and adults)

 

Somewhat Pollution Tolerant

Alderfly Larva

Alderfly

Damselfly Nymph

Damselfly Damselfly

Dragonfly Nymph

Dragonfly

Fishfly Larva

Scud

Scud

Crayfish

Crayfish

Crane Fly Larva

cranefly cranefly

Sow Bug

Clam/Mussel

clam mussel

Watersnipe Fly Larva

 

Pollution Tolerant

Aquatic Worm

Black Fly Larva

blackfly

Midge Fly Larva

Midge

Leech

Leech

Pouch Snail (Left-Handed)

Pouch Snail

Other Snail

Other Snail other snail