16 



INSECTS OF THE CAVE. 



cave mammals, articulates and shells -of the middle states. He 

 says that " myriopods are the only articulates which can be 

 readily found in the remote regions of the caves [of West Vir- 

 ginia] and they are not very common in a living state." The 

 Pseudotremia cavemarum which he describes, " inhabits the deep- 

 Fig. 129. 



Acanthocheir armatct. 



est recesses of the numerous caves which abound in Southern Vir- 

 ginia, as far as human steps can penetrate. I have not seen it 

 near their mouths, though its eyes are not undeveloped, or smaller 

 than those of many living in the forest. Judging from its remains, 

 which one finds under stones, it is an abundant species, though 



Fig. 130. Fig. 130 a. 



Spirostrephon Copei. 



rarely seen by the dim light of a candle even after considerable 

 search. Five specimens only were procured from about a dozen 

 caves." The v second species, P. Vudii Cope, was found in Mont- 

 gomery Co. and he thinks it was not found in a cave. Professor 

 Hyatt informs me that he saw near the "Bottomless Pit" in Mam- 



