CRUSTACEA. 



(183) 



Where Located. 



Geological Age. 



Univ. Calif , 



Dr. Knapp 



Univ. Calif 



Wis. St. Coll 



li a ii 

 a (( (( 

 a a (< 



Univ. Calif. 



Wis. St. Coll.. 



Wis. St. Coll 



Univ. Calif. , 



C. B. Dyer 



Univ. Calif. 



U. S. Nat. Mus... 



Columbia College. 



Wis. St. Coll 



U. P. James 



Columbia College. 



U. S.Nat. Mus..., 



A. M. N. H 



U. S. Nat. Mus... 



Wis. St. Coll 



U. S. Nat. Mus'.'.'." 



Wis. St. Coll 



Calciferous 



Niagara 



Clinton 



Niagara 



li 



a 

 a 



Trenton 



Niagara 



Lower Helderb.. 

 Hud. Riv 



Niagara 



Quebec 



Erie Shale 



Hamilton 



Hud. Riv 



Cleveland Shale. 



Waverlv 



Hud. Riv 



W^averly 



Potsdam 



6C 



(i 



Niagara 



Locality. 



Baraboo, Wis. 



Louisville, Ky. 

 Dayton, Ohio. 

 Burlington, Wis. 

 Wauwatosa, " 



Pewaukee, " 



Milwaukee, Wis. 

 Belleville, Ohio. 

 Greenfield, " 

 Cincinnati, " 



Yellow Springs, Ohio. 

 Oquirrh Mts., Utah. 



(( ii a 



Leroy, Ohio. 



Milwaukee,! Wis. 



Cincinnati, Ohio. 

 Sheffield, Ohio. 



Oquirrh Mts., Utah, 

 Cincinnati, Ohio. 

 Oquirrh Mts., Utah. 



Hudson, Wis. 



St. Croix Co., Wis. 



White Pine, Nev. 



Racine, Wis. 



