Picmoirs of iht P^uscum of Comparatibe ^oologir 



AT HARVARD COLLEGE. 

 Vol. X. No. 4. 



REVISION OF THE ASTACiD:M: 



By WALTER FAXON. 



Part I. THE GENERA CAMBARUS AND ASTACUS. 



WITH TEN PLATES. 



CAMBRIDGE: 



Printed) for tl)c fHuseum. 

 August, 1885. 



