MYRIAPODA. 245 
Cuass JIJ.—Myriapopa. 
The Myriapoda resemble most nearly the /zsecta. Like 
them, they breathe by trachez, excrete by malpighian 
Fig. 162.—SCOLOPENDRA CINGULATA (A CENTIPEDE). 
Note head with antennz, segmented body and a single pair of jointed 
* legs to each segment. 
tubules and have one pair of antennz. They differ from 
them in having no definite thorax nor abdomen; the body 
Fig. 163.—JuLus Trerrestris (A. MILLIPEDE). 
Note head with antennz, the very numerous segments, and two legs to each 
segment. On the left is seen an individual coiled up. 
