510 Wisconsin Academy of Sciences^ Arts, and Letters. 



EXPLANATION OP PLATE XXVI. 



Fig. 1. Diaptomus asymmetricus: tei-ininal segments of right antenna 



of male (X 267). 

 Fig. 2. DiaptortMS purpureics : fifth foot of female (X 180). 

 Fig. 3. Diaptomus asymmetricus: fifth foot of female (X 267). 

 Pig. i. Diaptomus asymmetricus: abdomen of female (X 158). 

 Pig. 5. Diaptomus purpureus: abdomen of female (X 69). 

 Fig. 6. Diaptomus Eiseni: fifth foot of female. After DeGuerne and 



Richard. 

 Fig. 7. Diaptomus franc iscanus : abdomen of female. After I'eGuerne 



and Richard. 

 Fig. 8. Diaptomus Eiseni: terminal segments of right antenna of male, 



After DeGuerne and Richard. 

 Fig. 9. Diajytomus novamexicanus: fifth feet of male. After Herrick 



and Turner. 

 Fig. 10. Diaptoynus novamexicanus : fifth foot of female. After Her- 

 rick and Turner. 

 Fig. 11. Diaptomus francisoanus : terminal segments of right antenna 



of male. After DeGuerne and Richard. 



