DESCRIPTION. 121 



shell, paler and pellucid towards the base ; valves 

 finely striate. 



Two larger valves three-sided, curvilinear ; two 

 upper ones nearly triangular; connecting one 

 curved, narrow, rounded on the back. 



Inhabits nearly all seas. 



The specimen from which the annexed drawing- 

 was made, being a dried one, the peduncle is not 

 inflated, nor does it preserve its original colour; 

 but the skin which adheres to the margin of the 

 valves is of a reddish orange. 



Fig. 4. Pholas Candida. 



Shell oblong, muricate on all sides with decus- 

 sate strise. 



Lister Co?ich. Tab. 435. Fig. 278. 



Specimen white, very thin, within smooth, and 

 rather silvery, both . ends rounded ; tooth of the 

 hinge long, thin, and curved ; margin of the hinge 

 turgid, and projecting with a sharp curved fold 

 towards the anterior part. One accessory valve 

 lanceolate. 



Inhabits the English coast. 



