OF CONCHOLOGY. 141 



Arenose, sandy. 



Articulations, junctures, or joinings. 



Ascititious, supplemental, additional. 



Attenuated, thin, slender. 



Attiguous, hard by. 



Attrite, worn by rubbing. 



Aurated, eared, having ears as in the 



scallops. 

 Auricled, having appendages like ears. 



B. 

 Barb, any thing that grov^^s in place of 



a beard. 

 Base, in univalves that part of the shell 



by which they are affixed to rocks, 



&c. and in multivalves the opposite 



extremity to the apex. 

 Biangulated, having two corners or 



angles. 

 Beak, the continuation of the body 



of univalves in which the canal is 



situate. 

 Beard, the process by which some 



univalves adhere to rocks, &c. 

 Bellying, distended in the middle. 



