jflDemoirs ot tbe /IDuseum of Comparative Zoologg 



AT HARVARD COLLEGE. 



Vol. XL. No. S. 



N0TE8 ON THE CRAYFISHES 



IN THE 



UNITED STATES NATIONAL MUSEUM 



AND THE 



MUSEUM OF COMPARATIVE ZOOLOGY 

 WITH DESCRIPTIONS OF NEW SPECIES AND SUBSPECIES 



TO WHICH IS APPENDED 



A CATALOGUE OF THE KNOWN SPECIES AND SUBSPECIES. 



BY 



WALTER FAXON. 



With Thirteen Plates. 



CAMBRIDGE, U. S. A.: 



IPrintel) for tbe /IMiseum, 



July, 1914. 



