722. 



SMITHSONIAN INSTITUTION. 



UNITED STATES NATIONAL MUSEUM. 



NORTH AMERICAN PARASITIC COPEPODS 

 BELONGING TO THE FAMILY 

 CALIGID^. 



Part 1.— THE GAUGING. 



BY 



CHARLES BRANCH WILSON, 



Department of Biology, State Normal School, Westfield, Mass. 



From the Proceedings of the United States National Museum, Vol. XXVIII, pages 479-672 



(with Plates V-XXIX). 



[No. 1404.] 





WASHINGTON: 



GOVERNMENT PRINTING OFFICE 



1905. 



