CRUSTACEA
Crayfish, Orconectes nais Image13
Crayfish, Orconectes neglectus Image392
Isopoda, Asellidae

SPONGES
Fresh-water sponge, Spongillidae Image473

INSECTS
Aquatic caterpillar, Synclita obliteralis
Blackfly larva, Simuliidae
Caddisfly case, Ptilostomi
Caddisfly case, Leptoceridae
Caddisfly case, Limnephilidae Image412
Caddisfly net, Hydropsychidae Image15
Caddisfly case, Polycentropodidae
Caddisfly larva, Polycentropodidae
Caddisfly net, Polycentropodidae
Caddisfly larva, Hydropsychidae
Damselfly larva, Argia Image388
Black Clubtail dragonfly, Hagenius brevistylus Image1574
Dragonfly larva, Urythemis simtlicocollus
Dragonfly larva, Epicordulia princepirs Image626
Hellgrammite, Corydalus cornutus Image390
Mayfly larva, Stenonema feoratum Image237
Mayfly larva, Hexagenia
Mayfly larva, Heptageniidae
Mayfly larva, Caenidae
Spongilla-fly larva, Sisyridae Image794
Red freshwater mite, Limnochares
Water scorpion, Ranatra Image163

MISCELLANEOUS
Aquatic earthworm, Oligochaeta Image175
Apple snail
Bryozoan, Fredericella indica Image16
Bryozoan, sp.
Leech, Hirudinea Image658
Freshwater clam, Pelecypoda
Tadpole, Rana catesbeiana Image837
Snails, Gastropoda Image679 Image680
Fungus
Freshwater Hydra, Image633

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