"The present paper is based on one hundred and fifty Petersen sampler collections taken in the Illinois River and Peoria Lake between June and September 1923: including 26 taken between La Salle and the head of Peoria Lake; 75 in the lake or its entrance, outlet, or connecting ""narrows"": and 49 below the lake and between Peoria and Beardstown."
Publisher
Champaign : Illinois Natural History Survey
Series/Report Name or Number
Illinois Natural History Survey Bulletin; v. 015, no. 06
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