- 1-40 



as in the wealcer soulptnre. 



Gupoy's figure reToresents the shell as hei': ■. less con- 



vex: than it actr.allj'" is, 



OoGurrence .- Upper Olijoeene: Santo Do^^un^o (Gahb, 1672; 



"too la. 19 oa ; 



'^■'-■■I'^PJ" , 1376); Gatim f orration, Panama '•^... : -.xl iilshry, 1911); 

 lower liiocene: 3o?;den heds, ^ovrden, ''anaica, ^ Qvcdv-s ^ 1866, 



1874; Dall, 19C,^). 



