Crustaceans
•Corophium lacustre
–Illinois River, 4 counties in 2003
–Marine, native to western Atlantic
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•Daphnia lumholtzi
–Lake Erie in 1999
–Lake Pepin, MN in 1999
–Willard Bay Res., UT in 1999
–16 US States
Illinois Natural History Survey
Tom Ferro
Here are two more small crustaceans found in the Great Lakes region.  This Scud was been collected earlier this year from the Illinois River spanning 4 counties.  It is a marine species native to our Western Atlantic Coast.