TABLE SHOWING THE CLASSIFICATION OF THE ARTHROPODS 

 DESCRIBED IN THIS CHAPTER 



Phylum 

 ARTHROPODA 



Class 

 CRUSTACEA 



Subclass 

 Entomostraca 



(Crustacea of small, often of almost microscopic minuteness, and of comparatively 

 simple organization; appendages have little differentiation) 



Order PHYLLOPODA 

 (Appendages resemble leaves; mostly fresh-water species) 



Suborders Genera 



EUPHYLLOPODA 

 (Phyllopoda of considerable 

 size, bearing ten to sixty 

 pairs of leaf-like swim- 

 ming-feet) 



CIADOCERA 



(Small phyllopoda ; body 

 laterally compressed ; cara- 

 pace like a bivalve shell ; 

 four to five pairs of swim- 

 ming-feet ; chief organs of 

 locomotion are the bira- -__ . 



mous antennae; abdomen 

 devoid of appendages. They 

 abound in fresh water, are 

 very prolific, and afford a 

 large amount of food to 

 fresh-water fishes) 



Order OSTRACODA 



(Resemble minute bivalve shells ; swim by antennae ; body unsegmented ; 

 appendages seven pairs only) 



Cyprls (fresh-water) 

 Cypridina (marine) 



