THE CHILOPODA OF CALIFORNIA 1 



365 



doubtedly bring to light many important and interesting forms. Our knowledge 

 of the Diplopoda is especially unsatisfactory; while of the Symphyla and 

 Pauropoda, — undoubtedly represented in the state — so far as known to the 

 author, there have been published no records at all. The promising bionomic 

 problems presented by these much neglected arthropods in the extensive and 

 diversified Californian region remain essentially untouched. 



THE CL.\SS CHILOPODA. 



The chilopods are all terrestrial forms in which the body piesents two 

 main divisions, the head and the trunk or body proper. The body, enclosefl 

 in a chitinous exo-skeleton free from lime salts, is relatively long and ribbon- 

 like, being compressed dorso-ventrally. It is divided into numerous segments 



Figure 132. 



A, Left anal leg of a specimen of Laniyctes fulvicornis from Naugen, Wisconsin. 

 The specimen is 9.6 mm long. B, Left anal leg of a specimen of Lamyctes pinampus 

 sp. nov. from Claremont, C'al. The specimen is 8.6 mm long. The figure is drawn by 

 camera lueida on the same scale of magnification as A. 



nearly all of which bear each a single pair of six or seven jointed legs. The 

 legs are inserted at the sides of the body, being widely separated by the large 

 sternal plates. The first pair of post-cephalic appendages are modified into 

 "poison-jaws," commonly referred to in literature as the prehensorial feet. 

 The coxae of the prehensorial feet fuse in the middle line into a plate termed 



