TABLE OF CONTENTS 



FORMING A 



SYNOPSIS OF THE PRINCIPAL DIVISIONS OF THE ANIMAL 



KINGDOM. 



I. BODY CONSISTING OF NUMEROUS CELLS: MULTICELLULAR 



ANIMALS. 



A. BILATERALLY SYMMETRICAL ANIMALS. 



I. WITH AN INTERNAL BONY OR CARTILAGINOUS SKELETON. 

 I. Phylum: Vertebrata 



(a) BREATHING BY LUNGS ; COVERED WITH HAIR ; EXCEPT MONOTREMES, 

 BEARING LIVING YOUNG, WHICH ARE NOURISHED WITH MILK. 



CLASS I. : MAMMALS 



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