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CRUSTACEA
Crayfish, Orconectes nais Image 13
Crayfish, Orconectes neglectus Image 392
SPONGES
Fresh-water sponge, Spongillidae Image 473
INSECTS
Aquatic caterpillar, Synclita obliteralis Image
810
Caddisfly case, Ptilostomi
Image 497
Caddisfly case, Leptoceridae
Image 172
Caddisfly case, Limnephilidae Image 412
Caddisfly case, Hydropsychidae Image 580
Caddisfly case, Polycentropodidae
Image 376
Caddisfly larva, Polycentropodidae
Image 516
Caddisfly net, Polycentropodidae Image 377
Caddisfly net, Hydropsychidae
Image 15
Damselfly
larva, Argia Image 388
Black Clubtail dragonfly, Hagenius brevistylus
Image 1574
Dragonfly larva, Urythemis
simtlicocollus Image 602
Dragonfly larva, Epicordulia princepirs
Image 626
Hellgrammite, Corydalus cornutus
Image 390
Mayfly larva, Stenonema feoratum
Image 237
Mayfly larva, Hexagenia
Image 408
Mayfly larva, Heptageniidae
Image 236
Mayfly larva, Caenidae
Image 357
Spongilla-fly larva, Sisyridae Image 794
Red freshwater mite, Limnochares Image 591
Water scorpion, Ranatra Image 163
MISCELLANEOUS
Aquatic earthworm, Oligochaeta Image 175
Bryozoan, Fredericella indica Image 16
Leech, Hirudinea Image 658
Tadpole, Rana catesbeiana Image 837
Snails, Gastropoda Image 679, Image 680
Freshwater Hydra Image 633
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