PLATE VII. 



Figs. 1, 2. Conchoecia ritteri, female. 



1. Ventral view of rostrum. X 50. 

 "2. Antennule. X 35. 



Fig. o. Shell of Conchoecia daphnoidcs. X 21. 



Figs. 4-7. Ealocypris pelagica. 



4. Right valve from within. X 65. 



5. Frontal organ and antennule of male. X 72. 



6. Secondary branch of left male antenna. X 72. 



7. Hooked appendage of secondary branch of right male 



antenna. X 362. 



[38] 



