ON THE 



CLASSIFICATION 



AM) 



GEOGRAPHICAL DISTRIBUTION 



CRUSTACEA: 



THE REPORT ON CRUSTACEA 



UNITED STATES EXPLORING EXPEDITION, UNDER 

 CAPTAIN CHARLES WILKES, U. S. N., 



DURING THE YEARS 1838-1842. 



JAMES D. DANA, A.M., 



MTMBER OF THE SOC. OES. NAT. CTO. OF MOSCOW; THE SOC. PH1LOMATHIQUE OF PARIS; THE 



GEOLOGICAL SOCIETY OF LONDON; THE AMERICAN ACA* ./ OF ARTS AND SCIENCES 

 AT BOSTON; THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA, ETC. 



PHILADELPHIA: 

 PRINTED BY C. SHERMAN. 



1853. 



