Fig. 



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9 



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•Fig. 



13. 



PLATE S. 



Ergasilus depressus, male. 



Cyclops oithonoides (Amer, C. tenuissiinus, var.), stylets, 

 fifth foot. 



" " antennules. 



" " fourth feet. 



" " antenna of male. 



" " brevispinosus, stylet. 



" " " inner maxilliped. 



" " " swimming foot. 



*' '' " fifth foot, 



" " " antennule. 



" " " opening of spermatheca. 



Cyclopys sp.?^ nauplius. 



