chamberlin: geophiloidea of the southeastern states. 415 



Polycricus Humbert and Saussure. 

 Etudes sur les Myriop., 1872, p. 143. 



One species within our range apparently referable to this genus is 

 known from Florida. 



Polycricus marginalis (Meinert). 



Geophilus marginalis Meinert, Proc. Amer. philos. soc., 1886, 23, 

 p. 218. 



Polycricus floridanus Cook, Proc. Ent. soc. Washington, 1899, 4, 

 p. 307. 



Localities. — Key West, type locality and Miami (J. H. Comstock), 

 Ela. 



The specimen from Miami agrees fully with Meinert's type. 



Pachymerium C. L. Koch. 

 Syst. d. Myriopoden, 1847, p. 85 and 187. 



Pachymerium ferrugineum (C. L. Koch). 



Geophilus ferrugineus C. L. Koch, Deutsch. Crust. Myr. Arach., 

 1835, 3, p. taf. 2. 



Mecistocephalus foveatus McNeill, Proc. U. S. N. M., 1887, 10, p. 333. 



Geophilm attenuatus Cook (nee. Say), Proc. U. S. N. M., 1895, 18, 

 p. 59. 



Localities. — Holly Springs and Watervalley, Miss.; New Orleans, 

 La.; Jackson, Ala.; Asheville, N. C. 



A female with very recently hatched young was taken, among 

 numerous specimens, at Asheville on Aug. 6. Apparently, however, 

 most of the females, at this place, leave their young considerably 

 earlier in the season, many young being found some way along in 

 development. 



While the species is often found under bark of trees and beneath 

 leaves, I have taken it by far in greater numbers under stones along 

 river courses. At New Orleans it was found very abundant in a 

 vacant lot upon which there were piles of stones and pieces of bricks, 

 beneath which it occurred. At Wisconsin it was found early in 

 July in great abundance under stones and gravel at the edge of a 



