144 THE ELEMENTS 



Cicatrix, the glossy impression in 

 the inside of the valves, to which 

 the muscles of the animal have been 

 affixed. 



Ciliate, edged with parallel hairs, 

 bristles or appendages. 



Cinerous, of ash colour, of the colour 

 of wood ashes. 



Cleft, divided in the centre, cloven. 



Clovate, thicker towards the top, 

 elongated towards the base. 



Clivulus, a little cliff, or descent. 



Coated, furnished with an outer deci- 

 duous covering. 



Cochleae, shells of one piece, univalves. 



Cochleate, twisted like a screw or the 

 shell of a snail. 



Columella, the upright pillar in the 

 centre of most of the univalve shells. 



Commissure, a joint, a seam, a mould. 



Complicate, membranaceous, bent to 

 an acute angle, as in the tooth of 

 the Mactra, &c. 



Complicated, doubled together. 



