THE MYRIAPODS. 1 1 1 



..C i be species are confined to t he warn 

 fcjie i_r I « . I . < ■ , becoming fewer ae we approach the North Polar 

 regions. Many are inhabitants of fresh water; a \<t\ few 

 inhabit i be Bea. 



The Myriapods are all terrestrial, and occur in all parts 

 of the earth except the polar regions. <>n the other hand, 

 spiders and mites occur in tolerable abundance in the arctic 

 regions, as well as on the summits of lofty mountains, bul 

 the Bcorpions arc confined to the hotter parts of the earth. 



Unlike the winged insects, the Myriapods and Arachnids 

 do nol pass through a well-marked metamorphosis. 



< Ilass II [.- M \l \< OPOD \. 



General Characters of Malacopoda. — This group is re] 

 sented b\ a Bingle animal, the Peripatus of the tropics, in 

 which i he Bofi worm-like body has rudimentary jaws. There 

 is a pair of fleshy feet, ending in two claws, to each 

 in. n: ; ii breathes by minute air-tubi 



( i iss IV. — Mi riapod \. 



General Characters of Myriapods. — The centipedes and 

 millepedes are distinguished by their cylindrical body, the 

 abdominal segments being numerous and similar to the 

 thoracic segments, all provided with a pair 

 head is free, with a pair of antenna', and two or three pairs 

 of jaw-like appendagi -. 



Order 1. Cliilognatha. — To this group belong the mille- 

 pedes, Julus, etc. (Fig, L33)t The segments arc round or 

 flattened, and the feet are inserted near together, and there 

 appear to be two pairs to each segment. Millepedes feed 



on dead, sometimes fresh leaves, and on fallen fruit. 



Order 2. CJiilopoda. — This group is represented by the 

 nentipede, in which the body is flattened. In Oeophilus 

 (Fig. L34, G. Upuncticeps) there are from thirty to two 

 hundred segments. Our most common form ie l.ithobiu* 



