Fig. 33. — Three closely related species of Cyclops. A. Cyclops 

 distinctus. B. Cyclops fuscus. C. Cyclops albidus, probably 

 a hybrid fcetween the other two. All the specimens shown 

 are females.'v^ Th^ median eye is well seen. {After Neubaur.) 

 1. Antenna. 2. Antennule. 3. Egg-sac. 4. Caudal filaments. 



