610 



ZOOLOGY 



SECT. 



palps; one or both pairs of maxillae usually possess palps; the 

 second pair of maxillae are in some groups more or less united 

 together. In the Chilopoda the first pair of legs of the trunk 

 are specially modified to act as poison-jaws (maxillipedes), by 

 means of which the Centipede inflicts its poisonous bite. 



ant 



-brn 



slant 



cojc.ctjb 



FIG. 487. Scolopendra. (From 

 Cuvier's Animal Kingdom.) 



FIG. 488. Iiithobius forficatus seen from the 

 ventral side. ant. antenna? ; brn. brain : cox. up. 

 coxse of appendages ; ft. 15, fifteenth pair of legs ; 

 int. intestine; mal. Malpighiin tubes; mxp. 

 maxillipedes ; ne. co. nerve cord ; ces. oesophagus ; 

 stom. stomach. (From Leuckart.) 



The number of segments in the body varies from 10 to 173. In 

 the Millipedes the dorsal walls of the segments are very strongly 

 arched ; in the Centipedes the segments are all dorso-ventrally 

 compressed, with distinct tergal and sternal shields separated 

 laterally by intervals of comparatively soft skin on which the 



