OP CONCHOLOGY. 149 



and tapering towards the point like 

 a sabre. 



Entire, whole, undivided, not broken. 



Epidermis, the outer coat of the shell, 

 which is found in many species ; 

 which often falls off of its own ac- 

 cord without any injury to the sur- 

 face of the shell ; the beauty of many 

 shells is hidden by this outer coat. 



Equidistant, being at the same dis- 

 tance. 



Equilateral, having all sides equal. 



Equitans, folded one upon another 



Essential character, is a single cir- 

 cumstance serving to distinguish a 

 genus from every other genus. 



Esurine, corroding, eating. 



Exoleted, worn or faded. 



Expanding, standing in a direction 

 between upright and horizontal. 



Extraneous, not belonging, to a par- 

 ticular thing:. 



