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<br />TABLE 38 <br />SPECIES AND CONCENTRATIONS OF BENTHIC ORGANISMS <br />IN THE ILLINOIS RIVER <br />ADJACENT TO THE KERB TIPPLE AREA <br />Phylum <br />Class <br />Order <br />Family Morphological Percent <br />"Genus"Species Number Fofm" Composition <br />ARTHROPODA <br />INSECTA <br />Diptera (true-flies) <br />Chironomidae <br />Calasp@ctra sp. 3 larva 3.6 <br />• Croyironsura sp. 6 larva 7.2 <br />Eukieffeiiella sp. 9 larva 10.8 <br />Aydrbbaerns sp. 50 larva 60.3 <br /> 2 adults 2.4 <br />Ephemeroptera (may-flies) <br />Baetidae <br />Tricarytfibdes fallax 1 nymph 1.2 <br />Trichoptera (caddis-flies) <br />Hydropsychidae <br />Aydrdpsyche sp. 12 larva 14.5 <br /> <br />TOTAL 83 -- 100 <br />Diversity Index 1.70 <br />• <br />