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BULLETIN No. 2 



CF THE 



ILLINOIS 



TATE Museum OF Natural -History 



SPRINGFIELD, ILLINOIS. 



Drscriptions of two new species of Crustacea, fifty-one species 



OF Mof.LI'SCA. AND THREE SPECIES OF CrINOIDS, FROM THE CaR- 

 BONIFKROrs FOHMA'I'ION UV IlIJNOTS AND ADJACENT StATES. 



By a. H. Worthen. 



MARCH, 1884 



SI'KINGFJELD, ILL.: 



rokkek's printing house and btnderv. 



1884 



