22 BULLETIN OF THE LABORATORIES 



Viewed from the end, the shell is elliptical. It is widest 

 in the middle and the extremities are rounded. 



The antennas bear no natatory setae on the antepenultimate 

 joint. The terminal claws are non-pectinated and long. They 

 are about as long as the combined lengths of the last three joints. 

 The lower margin of the antepenultimate joint bears a modified 

 sensory seta. The antenna of the male is six-jointed. The man- 

 dibular palp of the female is large. The antepenultimate joint 

 bears, in addition to the usual long sensory set?e one short and 

 stout sensory seta which is sub-rectangular in form with trun- 

 cated ends and convex sides. It is about four times as long as 

 wide. 



The spines on the first mandibular process of the first 

 maxilla are not toothed. 



The post-abdomen of the male [fig. 36] is slender and sub- 

 triangular. The terminal claws are slender and curved. 



Habitat: Jones' Creek, Kent Co., Delaware. The spec- 

 imens that I have were collected by Prof. L. D. Hileland 

 March 3rd, 1894. 



NOTES ON THE CLADOCERA OF GEORGIA. 



Family DAPHNIDAE. 



Genus Ceriodaphnia, Dana. 



CeriodapJuiia censors, Birge. 



Ceriodaphnia consors, . . . E. A. Birge: Notes ;on"'Cladocera ; 



(1S78), p. 5; pi. I, fig. 3-4. 



Ceriodaphnia consors, . . . C. L. Herrick : Final Report on Minn. 



Crust. (1884) p. 40. 



Length, 0.55 mm. to 0.61 mm. Height, 0.40 mm. The 

 shell is reticulated, the reticulation being singly contoured. 



Habitat: South River Slough, Atlanta Ga., "February 3rd, 

 1894. 



