ENTOMOSTRACA OF MINNESOTA. 273 
Bosmina atlantaensis Turner. 
Bosmina atlantaensis—C. H. Turner, Notes on the Clad. of Ga., p. 23; Pl. VII, Figs. 
Leto: 
Length 0.46 mm.; height 0.36 mm. Habitat: Atlanta, Georgia. 
Obtained in the middle of winter from pools that dry up in dry 
weather. 
FAMILY LYNCODAPHNIDE. 
GENUS MACROTHRIX Baird. 
Macrothrix laticornis Jurine. 
Macrothrix laticornis—C. L. Herrick, Final Report Minn. Crust., p. 68; Pl. C, Figs. 8, 9. 
Length 0.37 mm. to 0.39 mm.; height 0.25mm. Habitat: Atlanta, 
Georgia, 
GENUS ACANTHOLEBERIS Lilljeborg. 
Acantholeberis curvirostris Miiller. 
Acantholeberis curvirostris—C, L. Herrick, Final Report Minn. Crust., p. 73. 
Length 0.97 mm.; height 0.61 mm. Habitat: Baxley, Georgia. 
GENUS ILYOCRYPTUS. 
Ilyoeryptus sordidus Lievin. 
European observers have never found more than a few specimens 
of this species at any one time. At two different times this summer 
I have found this species in great numbers in the mud at the bottom 
of a small pool on the Clark University campus at South Atlanta, 
Georgia. This pool is a tank about four feet deep, fed by a cool spring. 
At one end a shallow grassy creek flows outward from it. This creek 
at its origin is less than a foot deep and has a mud bottom. In this 
creek, at its source, is where the specimens were obtained. The 
American specimens tally in all essential respects with the European 
Specimens. Habitat: South Atlanta, Georgia. 
Ilyocryptus longiremus Sars. 
Ilyocryptus longiremus—E. A. Birge, List of Crust. Clad. from Madison, Wis., p. 392; 
lek, SQUOE dorpesailsy 
This species agrees in all essential respects with the species found 
by Professor Sars in Australia and by Professor Birge in Wisconsin. 
Habitat: Baxley, Georgia. It seems to be present in almost all of the 
ponds near Baxley. 
This species is very closely related to J/yocryptus spinifer Herrick. 
At one time I was fully convinced that they were two distinct species, 
