allee] 



SMALL CRUSTACEANS 



105 



III. Antennae short, not more than ten segments. 



Family Harpacticidae, Representative genus, Can- 

 thocampus (Fig. 8). 

 These distinctions can be made out with the naked eye and 

 are easily apparent when a hand lens is used. As is shown in 



Figure 8. — Copepod. Canthocampus. (After Whip- 

 ple.) X 25. 



Figure 6. — Copepod. Diaptamus. 

 (After Herrick.) 



Figure 9. — Ostracod. (After 

 Turner.) 



Figure 7. — Copepod. Cyclops. 

 (After Herrick.) 



Figure 10. — Ostracod. (After 

 Turner.) Side view. 



