Trans. Wis. Acad., Vol. XI. 
Plate XXIII. 
Fig. 7.—Leading Crustacea, 1894. Beale, 1 space = 100,000 Crustacea 
per sq. meter. See p. 308. 
D. hyalina. # _____ r , _____ 
Cyclops. 
Diaptomus... 3 
July. Aug. Sept. Oct. Nov. Dec. 
Fig. 10.—Total Crustacea, July-Dee., after deducting Chydorus. Scale, 
1 vertical space = 100,000 Crustacea per sq. meter. See p. 312. 
1894.... g -©- 
1895.... 
1896.... 9 -- 
