112 ANIMAL FORMS 
species especially causes painful but not fatal wounds in 
man. 
On the other hand, the millipeds (Fig. 68) or thousand- 
legs are cylindrical, slow-going animals, feeding on vegetable 
Fia. 67.—Centiped. Fie. 68.—Thousand-legs or milliped (JuZus). 
One-half natural size. Natural size. 
substances without causing any particular damage, except in 
the case of the “ cutworms,” which often work great injury 
to crops. When disturbed they make little effort to escape, 
but roll into a coil and emit an offensive-smelling fluid, 
which renders them unpalatable to their enemies. 
All present a great resemblance to the segmented worms, 
as their popular names often testify; but, on the other 
hand, many points in their organization indicate a closer 
relationship to the insects. As in the latter, the head is 
distinct, and bears a pair of antenne, the eyes, and two or 
three pairs of mouth-parts. The trunk is more worm-like, 
and consists of a number of similar segments, each bearing 
