MAR 23 ]m 



Bulletin of the Museum of Comparative Zoology 



AT HARVARD COLLEGE. 

 Vol. LX. No. 6. 



RESULTS OF THE YALE PERUVIAN EXPEDITION OF IQU. 



THE ARACHNIDA. 



By Ralph V. Ch.\mberlin. 



With Twentt-pive Plates. 



CAMBRIDGE, MASS., U. S. A.: 



PRINTED FOR THE MUSEUM. 



March, 1916. 



