CLASSIFICATION OF AKIMALS 



The following table of classification is designed to show the systematic position 

 of the more important animals mentioned in the text. 



ANIMAL KINGDOM 



ONE-CELLED ANIMALS: 



BRANCH- L PROTOZO'A (protos, first ; zoon, animal) 

 Class I. Rhizop'oda (rhiza, root ; pous, foot). 



Amw'ba, Difflii'gia. 



Class II. Infuso'ria (organisms found in infusions). 

 Order 1. Flagella'ta (flagellum, a whip). 



Euglen'a, Codosig'a, Panddrl'na, Vol'vSx. 

 Order 2. Cilia'ta (cilium, an eyelash). 

 Paramoz'cium, Vorticel'la. 



MANY-CELLED ANIMALS (Metazoa) : 



BRANCH II. PORIF ERA (porus, pore ; fero, to carry.) 

 Class I. Porifera (or sponges). 



BRANCH III. CQELENTERA TA (animals with combined body and 



stomach cavity) 

 Class I. Hydrozo'a (hydra, water-serpent ; zoon, animal). 



Hydra, Gonionemus, Hydractiriia, Portuguese man-of-war. 

 Class II. Scyphozo a (scyphos, cup; zoon, animal). 



RJuizijs'toma, Haliclys' tus. 

 Class III. Actinozo'a (actis, a ray ; zoon, animal). 



BRANCH IV. PLATYHELMIN THES * (platus, flat ; helminthos, 



a worm) 



Class I. Plata' da (platus, flat; eidos, likeness). 

 Plana'ria, Leptopla'na. 



* For purposes of convenience, the flatworms (Platyhelminthes), 

 roundworms (Xematelminthes), and segmented worms (Annelids) are 

 combined in one branch (The Worms) in the text. 



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