ABSTRACT 



Populations of sandbar sharks of the eastern and western parts of the Atlantic 

 Ocean are defined and general problems of nomenclature, the ecology of large 

 carcharhinid sharks, and field recognition of sandbar sharks are discussed. 



A more-detailed account of observations on Eulamia milberii, restricted to the 

 population of the western North Atlantic, is given, outlining distribution of adults 

 and young, migrations, development, and behavior, based on observations from 

 the commercial shark fishery which operated from centers in the Southeastern 

 States from 1935 to 1950 and supplemented by data from research vessels operating 

 after 1950. 



Comparisons with other species in the area, lists of large species of sharks taken 

 at certain times off Salerno, Florida; Bimini, Bahamas; the mouth of the Missis- 

 sippi River, Louisiana; and the Caribbean coast of Nicaragua-Costa Rica, as well 

 as discussions of interspecies competition, are included. 



