184 



FIRST BOOK OF ZOOLOGY. 



INSECTS. 



Class Myriapoda (centipedes, millepedes). Animals com- 

 posed of many segments. These not apparently combined 

 into regions, except the head, which is distinct. The number 

 of pairs of legs coinciding with the number of segments. 

 Breathing air through openings in the sides of the body. 



The word myriapoda is derived from two Greek words, 

 murioi, ten thousand, smdpous, foot. 



A MYBIOPOD. 



