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<br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />AQUATIC INSECTS OF THE ARKANSAS RIVER BASIN IN COLORADO <br /> <br />DATE June 12, 1974 <br /> <br />SAMPLE NO. 3 <br /> <br />COLLECTION SITE Rocky Ford Sewage Treatment Ditch into Lower Arkansas River, above discharge <br /> <br />ORDER FAMILY GENUS SPECIES NO. INDIVIDUALS <br />Pulmonata Physidae Physa 1 <br />Pulmonata Lamnaeidae Lymnaea 1 <br />Ephemeroptera Heptageniidae Pseudiron 1 <br />Ephemeroptera Heptageni i dae Heptagenia 2 <br /> <br />. <br /> <br />~ <br />C') <br />f\.) <br />-1 <br />