492 
Wisconsin Academy of Sciences, Arts, and Letters . 
*T 
Fig. 1. 
Fig. 2. 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
Fig. 7. 
Fig. 8. 
Fig. 9. 
Fig. 10. 
Fig. 11. 
EXPLANATION OF PLATE XVII. 
Diaptomus sicilis: fifth feet of male (X 290). 
Diaptomus tenuicaudatus: fifth feet of female (X 290). 
Diaptomus tenuicaudatus: terminal segments of right antenna 
of male (X 290). 
Diaptomus sicilis: terminal segments of right antenna of male 
(X 290). 
Diaptomus sicilis: fifth foot of female (X 290). 
Diaptomus Ashlandi: fifth foot of female (X 375). 
Diaptomus minutus: fifth foot of female (X 375). 
Diaptomus Ashlandi: fifth feet of male (X 290). 
Diaptomus sicilis: abdomen of female (X 165). 
Diaptomus Ashlandi: terminal segments of right antenna of 
male (X 290). 
Diaptomus minutus: terminal segments of right antenna of 
male (X 290). 
