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ORDER CLADOCERA. 
FAMILY SIDIDE. 
GENUS SIDA Straus. 
Sida crystallina Miller. 
Sida crystallina—C, L. Herrick, Final Report on Minn. Crust., p. 20. 
Habitat: Cincinnati, Ohio. Rare. Occurs in deep canal basins. 
FAMILY DAPHNIDE. 
GENUS MOINA Baird. 
Moina rectirostris Miiller. 
Moina rectirostris—C. L. Herrick, Final Report on Minn. Crust., p. 34; Pl. A., 
Figs. 2, 5, 8, 10, 11. 
Length of female 0.94 mm.; height 0.63 mm. Habitat: Atlanta, Ga. 
Moina paradoxa Weismann. 
Moina paradoxa—C. L. Herrick, Final Report on Minn. Crust., p. 34; Pl. A, 
TOMS ILS eels 7G 43)s 
Habitat: Cincinnati, Ohio. During the latter portion of summer 
this species is very abundant in foul pools. 
GENUS CERIODAPHNIA Dana. 
Ceriodaphnia consors Birge. 
Ceriodaphnia consors—E. A. Birge, Notes on Clad., p. 5; Pl. 1, Figs. 3, 4. 
Length 0.55 mm.to 0.61 mm.; height 0.40 mm. The reticulations 
on the shell are singly contoured. Habitat: Atlanta, Georgia. Winter 
and summer. 
Ceriodaphnia megops Sars. 
Ceriodaphnia cristata—E. A. Birge, Notes on Clad., p. 6; Pl. II, Figs. 8, 9. 
Length 0.64 mm.; height 0.50 mm. Habitat: Kent county, Dela- 
ware; Atlanta, Georgia. 
