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PLATE K. 



Daphnia mimiehaha, male. 



" '' part of feet of first and second pair, 



CantJwcamptus hibernicus, antenna of female. 



fifth foot of female. 

 " palttstris^ antenna of male. 



" trispinosus, fifth foot of female. 



" minutus^ young. 



" " nauplius form. 



Pseudo-sida hklentata, adult female, antennule, labrum, 

 angle of shell and post-abdomen. 

 Dajyhnia rosea, young female. 

 " " post-imago. 



'^ beak. 



