38 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I23 



Figs. 79-82. — Peromyscopsylla hamifer vigens and P. h. hamifer: 79, Distal 

 arm of ninth sternum, P. h. vigetis, 3; 80, same, P. h. hamifer, <S; 81, immovable 

 process and digitoid of male clasper, P. h. vigens; 82, same, P. h. hamifer. For 

 explanation of symbols see pages 67-68. 



