SECTION XIL ^51 



The fourth and laft family of Shells 

 with unequal valves and that (hut clofe, 

 is the Anomiae. 



This family has long been known foffil, 

 and contains a great number of fpecies, all 

 of which, except three or four, remain 

 yet undifcovered recent or living from fea; 

 ^nd even thefe few known are difcoveries 

 made within thefe twenty years paft. 



Columna firft mentioned fome foflil Ipe- 

 cies, and he being convinced that all foffil 

 $helis were real exuviae or fpoils of ani- 

 mals, and not finding thefe defcribed or 

 noticed by Conchologifts as Shells, called 

 them Conchss rariores Anomia^ ; which 

 word Anomia has fince been fo generally 

 ufed for them, that it is now become the 

 univerfal and eftablillied narne of the f^« 

 mily. 



Columna 



