162 BULLETIN 46, UNITED STATES NATIONAL MUSEUM. 



Superorder II. PODOCHILA. 

 This division embraces the following: 



Order IV. PSELAPHOGNATH A. 



Family VIII. POL YXENIIXE. 

 This family includes the cosmopolitan genus Polyxenais. 



Siabclass B. MONOFODA. 

 This subclass includes the 



Order V. PAUROPODA. 

 Family IX. PAUROPODIDJ3. 

 This family is divisible into two subfamilies. 



a. Segments depressed, sculptured ; legs short, riot or scarcely extending beyond sides 

 of body; (brownish; motions slow) .............. EURYPAUROPODIX^E. XX. 



aa. Segments not depressed nor sculptured; legs longer, extending beyond sides of 

 body (pale, motions agile) ............................. PAUKOPODINJ. XXI. 



Subfamily XX. E 



Analysis of the genera. 



a. Dorsal plates 10; large lateral hairs on 2, 4,7, 9, (101) segments. 



Brachypauropus Latzel. 

 aa. Dorsal plates 7: large lateral hairs ou 2, 3, 4, 5, 6 segments. 



Eurypauropus Kyder. 



Subfamily XXI. PAUROPODIN^E. 

 Includes the genus Ptutroimx Lubbock. 

 INDIANA UNIVERSITY, April 3, 188& 



